diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 19:45:16 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 19:45:16 (GMT) |
| commit | 8287361abca36504da813638310d2547469283eb (patch) | |
| tree | 8d98e9a910885efdb09ae5390a3ae44040557e2f /arch/arm/mach-omap2 | |
| parent | 2989950cea13711f0cc573c26cde8fe08a36be03 (diff) | |
| parent | 8556650dd3370a927217f16444aac5cc0c71e61b (diff) | |
| download | linux-8287361abca36504da813638310d2547469283eb.tar.xz | |
Merge tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC Header cleanups from Olof Johansson:
"This is a collection of header file cleanups, mostly for OMAP and
AT91, that keeps moving the platforms in the direction of
multiplatform by removing the need for mach-dependent header files
used in drivers and other places."
Fix up mostly trivial conflicts as per Olof.
* tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (106 commits)
ARM: OMAP2+: Move iommu/iovmm headers to platform_data
ARM: OMAP2+: Make some definitions local
ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
ARM: OMAP2+: Move iopgtable header to drivers/iommu/
ARM: OMAP: Merge iommu2.h into iommu.h
atmel: move ATMEL_MAX_UART to platform_data/atmel.h
ARM: OMAP: Remove omap_init_consistent_dma_size()
arm: at91: move at91rm9200 rtc header in drivers/rtc
arm: at91: move reset controller header to arm/arm/mach-at91
arm: at91: move pit define to the driver
arm: at91: move at91_shdwc.h to arch/arm/mach-at91
arm: at91: move board header to arch/arm/mach-at91
arn: at91: move at91_tc.h to arch/arm/mach-at91
arm: at91 move at91_aic.h to arch/arm/mach-at91
arm: at91 move board.h to arch/arm/mach-at91
arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
arm: at91: drop machine defconfig
ARM: OMAP: Remove NEED_MACH_GPIO_H
ARM: OMAP: Remove unnecessary mach and plat includes
...
Diffstat (limited to 'arch/arm/mach-omap2')
192 files changed, 8788 insertions, 3491 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index fe40d9e..d5e834a 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -4,30 +4,37 @@ # Common support obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer.o pm.o \ - common.o gpio.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o - -# INTCPS IP block support - XXX should be moved to drivers/ -obj-$(CONFIG_ARCH_OMAP2) += irq.o -obj-$(CONFIG_ARCH_OMAP3) += irq.o -obj-$(CONFIG_SOC_AM33XX) += irq.o - -# Secure monitor API support -obj-$(CONFIG_ARCH_OMAP3) += omap-smc.o omap-secure.o -obj-$(CONFIG_ARCH_OMAP4) += omap-smc.o omap-secure.o -obj-$(CONFIG_SOC_OMAP5) += omap-smc.o omap-secure.o + common.o gpio.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o \ + omap_device.o sram.o + +omap-2-3-common = irq.o +hwmod-common = omap_hwmod.o \ + omap_hwmod_common_data.o +clock-common = clock.o clock_common_data.o \ + clkt_dpll.o clkt_clksel.o +secure-common = omap-smc.o omap-secure.o + +obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) +obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common) +obj-$(CONFIG_ARCH_OMAP4) += prm44xx.o $(hwmod-common) $(secure-common) +obj-$(CONFIG_SOC_AM33XX) += irq.o $(hwmod-common) +obj-$(CONFIG_SOC_OMAP5) += prm44xx.o $(hwmod-common) $(secure-common) ifneq ($(CONFIG_SND_OMAP_SOC_MCBSP),) obj-y += mcbsp.o endif -obj-$(CONFIG_TWL4030_CORE) += omap_twl.o +obj-$(CONFIG_TWL4030_CORE) += omap_twl.o +obj-$(CONFIG_SOC_HAS_OMAP2_SDRC) += sdrc.o # SMP support ONLY available for OMAP4 obj-$(CONFIG_SMP) += omap-smp.o omap-headsmp.o obj-$(CONFIG_HOTPLUG_CPU) += omap-hotplug.o -obj-$(CONFIG_ARCH_OMAP4) += omap4-common.o omap-wakeupgen.o -obj-$(CONFIG_SOC_OMAP5) += omap4-common.o omap-wakeupgen.o +omap-4-5-common = omap4-common.o omap-wakeupgen.o \ + sleep44xx.o +obj-$(CONFIG_ARCH_OMAP4) += $(omap-4-5-common) +obj-$(CONFIG_SOC_OMAP5) += $(omap-4-5-common) plus_sec := $(call as-instr,.arch_extension sec,+sec) AFLAGS_omap-headsmp.o :=-Wa,-march=armv7-a$(plus_sec) @@ -52,7 +59,6 @@ obj-$(CONFIG_ARCH_OMAP4) += mux44xx.o # SMS/SDRC obj-$(CONFIG_ARCH_OMAP2) += sdrc2xxx.o # obj-$(CONFIG_ARCH_OMAP3) += sdrc3xxx.o -obj-$(CONFIG_SOC_HAS_OMAP2_SDRC) += sdrc.o # OPP table initialization ifeq ($(CONFIG_PM_OPP),y) @@ -63,15 +69,16 @@ endif # Power Management ifeq ($(CONFIG_PM),y) -obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o sleep24xx.o +obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o +obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o omap-mpuss-lowpower.o -obj-$(CONFIG_ARCH_OMAP4) += sleep44xx.o -obj-$(CONFIG_SOC_OMAP5) += omap-mpuss-lowpower.o sleep44xx.o +obj-$(CONFIG_SOC_OMAP5) += omap-mpuss-lowpower.o obj-$(CONFIG_PM_DEBUG) += pm-debug.o +obj-$(CONFIG_OMAP_PM_NOOP) += omap-pm-noop.o obj-$(CONFIG_POWER_AVS_OMAP) += sr_device.o -obj-$(CONFIG_POWER_AVS_OMAP_CLASS3) += smartreflex-class3.o +obj-$(CONFIG_POWER_AVS_OMAP_CLASS3) += smartreflex-class3.o AFLAGS_sleep24xx.o :=-Wa,-march=armv6 AFLAGS_sleep34xx.o :=-Wa,-march=armv7-a$(plus_sec) @@ -83,76 +90,82 @@ endif endif ifeq ($(CONFIG_CPU_IDLE),y) -obj-$(CONFIG_ARCH_OMAP3) += cpuidle34xx.o -obj-$(CONFIG_ARCH_OMAP4) += cpuidle44xx.o +obj-$(CONFIG_ARCH_OMAP3) += cpuidle34xx.o +obj-$(CONFIG_ARCH_OMAP4) += cpuidle44xx.o endif # PRCM -obj-y += prcm.o prm_common.o -obj-$(CONFIG_ARCH_OMAP2) += cm2xxx_3xxx.o prm2xxx_3xxx.o -obj-$(CONFIG_ARCH_OMAP3) += cm2xxx_3xxx.o prm2xxx_3xxx.o +obj-y += prcm.o prm_common.o cm_common.o +obj-$(CONFIG_ARCH_OMAP2) += prm2xxx_3xxx.o prm2xxx.o cm2xxx.o +obj-$(CONFIG_ARCH_OMAP3) += prm2xxx_3xxx.o prm3xxx.o cm3xxx.o obj-$(CONFIG_ARCH_OMAP3) += vc3xxx_data.o vp3xxx_data.o obj-$(CONFIG_SOC_AM33XX) += prm33xx.o cm33xx.o omap-prcm-4-5-common = cminst44xx.o cm44xx.o prm44xx.o \ prcm_mpu44xx.o prminst44xx.o \ - vc44xx_data.o vp44xx_data.o \ - prm44xx.o + vc44xx_data.o vp44xx_data.o obj-$(CONFIG_ARCH_OMAP4) += $(omap-prcm-4-5-common) obj-$(CONFIG_SOC_OMAP5) += $(omap-prcm-4-5-common) # OMAP voltage domains -obj-y += voltage.o vc.o vp.o +voltagedomain-common := voltage.o vc.o vp.o +obj-$(CONFIG_ARCH_OMAP2) += $(voltagedomain-common) obj-$(CONFIG_ARCH_OMAP2) += voltagedomains2xxx_data.o +obj-$(CONFIG_ARCH_OMAP3) += $(voltagedomain-common) obj-$(CONFIG_ARCH_OMAP3) += voltagedomains3xxx_data.o +obj-$(CONFIG_ARCH_OMAP4) += $(voltagedomain-common) obj-$(CONFIG_ARCH_OMAP4) += voltagedomains44xx_data.o -obj-$(CONFIG_SOC_AM33XX) += voltagedomains33xx_data.o +obj-$(CONFIG_SOC_AM33XX) += $(voltagedomain-common) +obj-$(CONFIG_SOC_AM33XX) += voltagedomains33xx_data.o +obj-$(CONFIG_SOC_OMAP5) += $(voltagedomain-common) # OMAP powerdomain framework -obj-y += powerdomain.o powerdomain-common.o +powerdomain-common += powerdomain.o powerdomain-common.o +obj-$(CONFIG_ARCH_OMAP2) += $(powerdomain-common) obj-$(CONFIG_ARCH_OMAP2) += powerdomains2xxx_data.o -obj-$(CONFIG_ARCH_OMAP2) += powerdomain2xxx_3xxx.o obj-$(CONFIG_ARCH_OMAP2) += powerdomains2xxx_3xxx_data.o -obj-$(CONFIG_ARCH_OMAP3) += powerdomain2xxx_3xxx.o +obj-$(CONFIG_ARCH_OMAP3) += $(powerdomain-common) obj-$(CONFIG_ARCH_OMAP3) += powerdomains3xxx_data.o obj-$(CONFIG_ARCH_OMAP3) += powerdomains2xxx_3xxx_data.o -obj-$(CONFIG_ARCH_OMAP4) += powerdomain44xx.o +obj-$(CONFIG_ARCH_OMAP4) += $(powerdomain-common) obj-$(CONFIG_ARCH_OMAP4) += powerdomains44xx_data.o -obj-$(CONFIG_SOC_AM33XX) += powerdomain33xx.o +obj-$(CONFIG_SOC_AM33XX) += $(powerdomain-common) obj-$(CONFIG_SOC_AM33XX) += powerdomains33xx_data.o -obj-$(CONFIG_SOC_OMAP5) += powerdomain44xx.o +obj-$(CONFIG_SOC_OMAP5) += $(powerdomain-common) # PRCM clockdomain control -obj-y += clockdomain.o -obj-$(CONFIG_ARCH_OMAP2) += clockdomain2xxx_3xxx.o +clockdomain-common += clockdomain.o +obj-$(CONFIG_ARCH_OMAP2) += $(clockdomain-common) obj-$(CONFIG_ARCH_OMAP2) += clockdomains2xxx_3xxx_data.o obj-$(CONFIG_SOC_OMAP2420) += clockdomains2420_data.o obj-$(CONFIG_SOC_OMAP2430) += clockdomains2430_data.o -obj-$(CONFIG_ARCH_OMAP3) += clockdomain2xxx_3xxx.o +obj-$(CONFIG_ARCH_OMAP3) += $(clockdomain-common) obj-$(CONFIG_ARCH_OMAP3) += clockdomains2xxx_3xxx_data.o obj-$(CONFIG_ARCH_OMAP3) += clockdomains3xxx_data.o -obj-$(CONFIG_ARCH_OMAP4) += clockdomain44xx.o +obj-$(CONFIG_ARCH_OMAP4) += $(clockdomain-common) obj-$(CONFIG_ARCH_OMAP4) += clockdomains44xx_data.o -obj-$(CONFIG_SOC_AM33XX) += clockdomain33xx.o +obj-$(CONFIG_SOC_AM33XX) += $(clockdomain-common) obj-$(CONFIG_SOC_AM33XX) += clockdomains33xx_data.o -obj-$(CONFIG_SOC_OMAP5) += clockdomain44xx.o +obj-$(CONFIG_SOC_OMAP5) += $(clockdomain-common) # Clock framework -obj-y += clock.o clock_common_data.o \ - clkt_dpll.o clkt_clksel.o -obj-$(CONFIG_ARCH_OMAP2) += clock2xxx.o -obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpllcore.o clkt2xxx_sys.o +obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) clock2xxx.o +obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_sys.o +obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpllcore.o obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_virt_prcm_set.o obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_apll.o clkt2xxx_osc.o obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpll.o clkt_iclk.o obj-$(CONFIG_SOC_OMAP2420) += clock2420_data.o obj-$(CONFIG_SOC_OMAP2430) += clock2430.o clock2430_data.o -obj-$(CONFIG_ARCH_OMAP3) += clock3xxx.o +obj-$(CONFIG_ARCH_OMAP3) += $(clock-common) clock3xxx.o obj-$(CONFIG_ARCH_OMAP3) += clock34xx.o clkt34xx_dpll3m2.o -obj-$(CONFIG_ARCH_OMAP3) += clock3517.o clock36xx.o clkt_iclk.o +obj-$(CONFIG_ARCH_OMAP3) += clock3517.o clock36xx.o obj-$(CONFIG_ARCH_OMAP3) += dpll3xxx.o clock3xxx_data.o -obj-$(CONFIG_ARCH_OMAP4) += clock44xx_data.o +obj-$(CONFIG_ARCH_OMAP3) += clkt_iclk.o +obj-$(CONFIG_ARCH_OMAP4) += $(clock-common) clock44xx_data.o obj-$(CONFIG_ARCH_OMAP4) += dpll3xxx.o dpll44xx.o -obj-$(CONFIG_SOC_AM33XX) += dpll3xxx.o clock33xx_data.o +obj-$(CONFIG_SOC_AM33XX) += $(clock-common) dpll3xxx.o +obj-$(CONFIG_SOC_AM33XX) += clock33xx_data.o +obj-$(CONFIG_SOC_OMAP5) += $(clock-common) obj-$(CONFIG_SOC_OMAP5) += dpll3xxx.o dpll44xx.o # OMAP2 clock rate set data (old "OPP" data) @@ -160,7 +173,6 @@ obj-$(CONFIG_SOC_OMAP2420) += opp2420_data.o obj-$(CONFIG_SOC_OMAP2430) += opp2430_data.o # hwmod data -obj-y += omap_hwmod_common_data.o obj-$(CONFIG_SOC_OMAP2420) += omap_hwmod_2xxx_ipblock_data.o obj-$(CONFIG_SOC_OMAP2420) += omap_hwmod_2xxx_3xxx_ipblock_data.o obj-$(CONFIG_SOC_OMAP2420) += omap_hwmod_2xxx_interconnect_data.o @@ -184,8 +196,6 @@ obj-$(CONFIG_HW_PERF_EVENTS) += pmu.o obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox_mach.o mailbox_mach-objs := mailbox.o -obj-$(CONFIG_OMAP_IOMMU) += iommu2.o - iommu-$(CONFIG_OMAP_IOMMU) := omap-iommu.o obj-y += $(iommu-m) $(iommu-y) @@ -206,10 +216,10 @@ obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o obj-$(CONFIG_MACH_OMAP_2430SDP) += board-2430sdp.o obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o -obj-$(CONFIG_MACH_DEVKIT8000) += board-devkit8000.o +obj-$(CONFIG_MACH_DEVKIT8000) += board-devkit8000.o obj-$(CONFIG_MACH_OMAP_LDP) += board-ldp.o -obj-$(CONFIG_MACH_OMAP3530_LV_SOM) += board-omap3logic.o -obj-$(CONFIG_MACH_OMAP3_TORPEDO) += board-omap3logic.o +obj-$(CONFIG_MACH_OMAP3530_LV_SOM) += board-omap3logic.o +obj-$(CONFIG_MACH_OMAP3_TORPEDO) += board-omap3logic.o obj-$(CONFIG_MACH_ENCORE) += board-omap3encore.o obj-$(CONFIG_MACH_OVERO) += board-overo.o obj-$(CONFIG_MACH_OMAP3EVM) += board-omap3evm.o diff --git a/arch/arm/mach-omap2/am35xx-emac.c b/arch/arm/mach-omap2/am35xx-emac.c index d0c54c5..af11dcd 100644 --- a/arch/arm/mach-omap2/am35xx-emac.c +++ b/arch/arm/mach-omap2/am35xx-emac.c @@ -18,7 +18,7 @@ #include <linux/err.h> #include <linux/davinci_emac.h> #include <asm/system.h> -#include <plat/omap_device.h> +#include "omap_device.h" #include "am35xx.h" #include "control.h" #include "am35xx-emac.h" diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c index 95b384d..d1c0162 100644 --- a/arch/arm/mach-omap2/board-2430sdp.c +++ b/arch/arm/mach-omap2/board-2430sdp.c @@ -28,14 +28,12 @@ #include <linux/io.h> #include <linux/gpio.h> -#include <mach/hardware.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include "common.h" -#include <plat/gpmc.h> -#include <plat/usb.h> +#include "gpmc.h" #include "gpmc-smc91x.h" #include <video/omapdss.h> diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index 96cd369..79fd904 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -30,15 +30,15 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> -#include <plat/usb.h> #include "common.h" -#include <plat/dma.h> -#include <plat/gpmc.h> +#include <plat-omap/dma-omap.h> #include <video/omapdss.h> #include <video/omap-panel-tfp410.h> +#include "gpmc.h" #include "gpmc-smc91x.h" +#include "soc.h" #include "board-flash.h" #include "mux.h" #include "sdram-qimonda-hyb18m512160af-6.h" diff --git a/arch/arm/mach-omap2/board-3630sdp.c b/arch/arm/mach-omap2/board-3630sdp.c index fc224ad..81871b1 100644 --- a/arch/arm/mach-omap2/board-3630sdp.c +++ b/arch/arm/mach-omap2/board-3630sdp.c @@ -18,9 +18,8 @@ #include "common.h" #include "gpmc-smc91x.h" -#include <plat/usb.h> -#include <mach/board-zoom.h> +#include "board-zoom.h" #include "board-flash.h" #include "mux.h" diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 3669c12..fd80d97 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -27,6 +27,7 @@ #include <linux/leds.h> #include <linux/leds_pwm.h> #include <linux/platform_data/omap4-keypad.h> +#include <linux/usb/musb.h> #include <asm/hardware/gic.h> #include <asm/mach-types.h> @@ -34,8 +35,6 @@ #include <asm/mach/map.h> #include "common.h" -#include <plat/usb.h> -#include <plat/mmc.h> #include "omap4-keypad.h" #include <video/omapdss.h> #include <video/omap-panel-nokia-dsi.h> @@ -45,6 +44,7 @@ #include "soc.h" #include "mux.h" +#include "mmc.h" #include "hsmmc.h" #include "control.h" #include "common-board-devices.h" diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c index 318fead..603503c 100644 --- a/arch/arm/mach-omap2/board-am3517crane.c +++ b/arch/arm/mach-omap2/board-am3517crane.c @@ -26,7 +26,6 @@ #include <asm/mach/map.h> #include "common.h" -#include <plat/usb.h> #include "am35xx-emac.h" #include "mux.h" diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c index e162897..96d6c5a 100644 --- a/arch/arm/mach-omap2/board-am3517evm.c +++ b/arch/arm/mach-omap2/board-am3517evm.c @@ -25,6 +25,7 @@ #include <linux/can/platform/ti_hecc.h> #include <linux/davinci_emac.h> #include <linux/mmc/host.h> +#include <linux/usb/musb.h> #include <linux/platform_data/gpio-omap.h> #include "am35xx.h" @@ -33,7 +34,6 @@ #include <asm/mach/map.h> #include "common.h" -#include <plat/usb.h> #include <video/omapdss.h> #include <video/omap-panel-generic-dpi.h> #include <video/omap-panel-tfp410.h> diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c index cea3aba..64cf1bd 100644 --- a/arch/arm/mach-omap2/board-apollon.c +++ b/arch/arm/mach-omap2/board-apollon.c @@ -28,14 +28,14 @@ #include <linux/clk.h> #include <linux/smc91x.h> #include <linux/gpio.h> +#include <linux/platform_data/leds-omap.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> -#include <plat/led.h> #include "common.h" -#include <plat/gpmc.h> +#include "gpmc.h" #include <video/omapdss.h> #include <video/omap-panel-generic-dpi.h> diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c index 376d26e..a8cad22 100644 --- a/arch/arm/mach-omap2/board-cm-t35.c +++ b/arch/arm/mach-omap2/board-cm-t35.c @@ -38,21 +38,19 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> -#include "common.h" #include <linux/platform_data/mtd-nand-omap2.h> -#include <plat/gpmc.h> -#include <plat/usb.h> #include <video/omapdss.h> #include <video/omap-panel-generic-dpi.h> #include <video/omap-panel-tfp410.h> #include <linux/platform_data/spi-omap2-mcspi.h> -#include <mach/hardware.h> - +#include "common.h" #include "mux.h" #include "sdram-micron-mt46h32m32lf-6.h" #include "hsmmc.h" #include "common-board-devices.h" +#include "gpmc.h" +#include "gpmc-nand.h" #define CM_T35_GPIO_PENDOWN 57 #define SB_T35_USB_HUB_RESET_GPIO 167 @@ -181,7 +179,7 @@ static struct omap_nand_platform_data cm_t35_nand_data = { static void __init cm_t35_init_nand(void) { - if (gpmc_nand_init(&cm_t35_nand_data) < 0) + if (gpmc_nand_init(&cm_t35_nand_data, NULL) < 0) pr_err("CM-T35: Unable to register NAND device\n"); } #else diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c index 59c0a45..2786647 100644 --- a/arch/arm/mach-omap2/board-cm-t3517.c +++ b/arch/arm/mach-omap2/board-cm-t3517.c @@ -39,9 +39,8 @@ #include <asm/mach/map.h> #include "common.h" -#include <plat/usb.h> #include <linux/platform_data/mtd-nand-omap2.h> -#include <plat/gpmc.h> +#include "gpmc.h" #include "am35xx.h" @@ -49,6 +48,7 @@ #include "control.h" #include "common-board-devices.h" #include "am35xx-emac.h" +#include "gpmc-nand.h" #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) static struct gpio_led cm_t3517_leds[] = { @@ -240,7 +240,7 @@ static struct omap_nand_platform_data cm_t3517_nand_data = { static void __init cm_t3517_init_nand(void) { - if (gpmc_nand_init(&cm_t3517_nand_data) < 0) + if (gpmc_nand_init(&cm_t3517_nand_data, NULL) < 0) pr_err("CM-T3517: NAND initialization failed\n"); } #else diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c index 1fd161e..933479e 100644 --- a/arch/arm/mach-omap2/board-devkit8000.c +++ b/arch/arm/mach-omap2/board-devkit8000.c @@ -39,9 +39,8 @@ #include <asm/mach/flash.h> #include "common.h" -#include <plat/gpmc.h> +#include "gpmc.h" #include <linux/platform_data/mtd-nand-omap2.h> -#include <plat/usb.h> #include <video/omapdss.h> #include <video/omap-panel-generic-dpi.h> #include <video/omap-panel-tfp410.h> @@ -55,8 +54,11 @@ #include "sdram-micron-mt46h32m32lf-6.h" #include "mux.h" #include "hsmmc.h" +#include "board-flash.h" #include "common-board-devices.h" +#define NAND_CS 0 + #define OMAP_DM9000_GPIO_IRQ 25 #define OMAP3_DEVKIT_TS_GPIO 27 @@ -621,8 +623,9 @@ static void __init devkit8000_init(void) usb_musb_init(NULL); usbhs_init(&usbhs_bdata); - omap_nand_flash_init(NAND_BUSWIDTH_16, devkit8000_nand_partitions, - ARRAY_SIZE(devkit8000_nand_partitions)); + board_nand_init(devkit8000_nand_partitions, + ARRAY_SIZE(devkit8000_nand_partitions), NAND_CS, + NAND_BUSWIDTH_16, NULL); omap_twl4030_audio_init("omap3beagle"); /* Ensure SDRC pins are mux'd for self-refresh */ diff --git a/arch/arm/mach-omap2/board-flash.c b/arch/arm/mach-omap2/board-flash.c index e642acf..c33adea 100644 --- a/arch/arm/mach-omap2/board-flash.c +++ b/arch/arm/mach-omap2/board-flash.c @@ -17,14 +17,14 @@ #include <linux/mtd/physmap.h> #include <linux/io.h> -#include <plat/cpu.h> -#include <plat/gpmc.h> #include <linux/platform_data/mtd-nand-omap2.h> #include <linux/platform_data/mtd-onenand-omap2.h> -#include <plat/tc.h> +#include "soc.h" #include "common.h" #include "board-flash.h" +#include "gpmc-onenand.h" +#include "gpmc-nand.h" #define REG_FPGA_REV 0x10 #define REG_FPGA_DIP_SWITCH_INPUT2 0x60 @@ -104,36 +104,35 @@ __init board_onenand_init(struct mtd_partition *onenand_parts, defined(CONFIG_MTD_NAND_OMAP2_MODULE) /* Note that all values in this struct are in nanoseconds */ -static struct gpmc_timings nand_timings = { +struct gpmc_timings nand_default_timings[1] = { + { + .sync_clk = 0, - .sync_clk = 0, + .cs_on = 0, + .cs_rd_off = 36, + .cs_wr_off = 36, - .cs_on = 0, - .cs_rd_off = 36, - .cs_wr_off = 36, + .adv_on = 6, + .adv_rd_off = 24, + .adv_wr_off = 36, - .adv_on = 6, - .adv_rd_off = 24, - .adv_wr_off = 36, + .we_off = 30, + .oe_off = 48, - .we_off = 30, - .oe_off = 48, + .access = 54, + .rd_cycle = 72, + .wr_cycle = 72, - .access = 54, - .rd_cycle = 72, - .wr_cycle = 72, - - .wr_access = 30, - .wr_data_mux_bus = 0, + .wr_access = 30, + .wr_data_mux_bus = 0, + }, }; -static struct omap_nand_platform_data board_nand_data = { - .gpmc_t = &nand_timings, -}; +static struct omap_nand_platform_data board_nand_data; void -__init board_nand_init(struct mtd_partition *nand_parts, - u8 nr_parts, u8 cs, int nand_type) +__init board_nand_init(struct mtd_partition *nand_parts, u8 nr_parts, u8 cs, + int nand_type, struct gpmc_timings *gpmc_t) { board_nand_data.cs = cs; board_nand_data.parts = nand_parts; @@ -141,7 +140,7 @@ __init board_nand_init(struct mtd_partition *nand_parts, board_nand_data.devsize = nand_type; board_nand_data.ecc_opt = OMAP_ECC_HAMMING_CODE_DEFAULT; - gpmc_nand_init(&board_nand_data); + gpmc_nand_init(&board_nand_data, gpmc_t); } #endif /* CONFIG_MTD_NAND_OMAP2 || CONFIG_MTD_NAND_OMAP2_MODULE */ @@ -238,5 +237,6 @@ void __init board_flash_init(struct flash_partitions partition_info[], pr_err("NAND: Unable to find configuration in GPMC\n"); else board_nand_init(partition_info[2].parts, - partition_info[2].nr_parts, nandcs, nand_type); + partition_info[2].nr_parts, nandcs, + nand_type, nand_default_timings); } diff --git a/arch/arm/mach-omap2/board-flash.h b/arch/arm/mach-omap2/board-flash.h index c44b70d..2fb5d41 100644 --- a/arch/arm/mach-omap2/board-flash.h +++ b/arch/arm/mach-omap2/board-flash.h @@ -12,7 +12,7 @@ */ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> -#include <plat/gpmc.h> +#include "gpmc.h" #define PDC_NOR 1 #define PDC_NAND 2 @@ -40,12 +40,14 @@ static inline void board_flash_init(struct flash_partitions part[], #if defined(CONFIG_MTD_NAND_OMAP2) || \ defined(CONFIG_MTD_NAND_OMAP2_MODULE) extern void board_nand_init(struct mtd_partition *nand_parts, - u8 nr_parts, u8 cs, int nand_type); + u8 nr_parts, u8 cs, int nand_type, struct gpmc_timings *gpmc_t); +extern struct gpmc_timings nand_default_timings[]; #else static inline void board_nand_init(struct mtd_partition *nand_parts, - u8 nr_parts, u8 cs, int nand_type) + u8 nr_parts, u8 cs, int nand_type, struct gpmc_timings *gpmc_t) { } +#define nand_default_timings NULL #endif #if defined(CONFIG_MTD_ONENAND_OMAP2) || \ diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c index 8d04bf8..8668c72 100644 --- a/arch/arm/mach-omap2/board-h4.c +++ b/arch/arm/mach-omap2/board-h4.c @@ -26,15 +26,14 @@ #include <linux/clk.h> #include <linux/io.h> #include <linux/input/matrix_keypad.h> +#include <linux/mfd/menelaus.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> -#include <plat/menelaus.h> -#include <plat/dma.h> -#include <plat/gpmc.h> -#include "debug-devices.h" +#include <plat-omap/dma-omap.h> +#include <plat/debug-devices.h> #include <video/omapdss.h> #include <video/omap-panel-generic-dpi.h> @@ -42,6 +41,7 @@ #include "common.h" #include "mux.h" #include "control.h" +#include "gpmc.h" #define H4_FLASH_CS 0 #define H4_SMC91X_CS 1 diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c index 3785906..549080c 100644 --- a/arch/arm/mach-omap2/board-igep0020.c +++ b/arch/arm/mach-omap2/board-igep0020.c @@ -29,20 +29,19 @@ #include <asm/mach-types.h> #include <asm/mach/arch.h> -#include "common.h" -#include <plat/gpmc.h> -#include <plat/usb.h> - #include <video/omapdss.h> #include <video/omap-panel-tfp410.h> #include <linux/platform_data/mtd-onenand-omap2.h> +#include "common.h" +#include "gpmc.h" #include "mux.h" #include "hsmmc.h" #include "sdram-numonyx-m65kxxxxam.h" #include "common-board-devices.h" #include "board-flash.h" #include "control.h" +#include "gpmc-onenand.h" #define IGEP2_SMSC911X_CS 5 #define IGEP2_SMSC911X_GPIO 176 @@ -175,7 +174,7 @@ static void __init igep_flash_init(void) pr_info("IGEP: initializing NAND memory device\n"); board_nand_init(igep_flash_partitions, ARRAY_SIZE(igep_flash_partitions), - 0, NAND_BUSWIDTH_16); + 0, NAND_BUSWIDTH_16, nand_default_timings); } else if (mux == IGEP_SYSBOOT_ONENAND) { pr_info("IGEP: initializing OneNAND memory device\n"); board_onenand_init(igep_flash_partitions, diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index ee8c3cf..1164b10 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -35,9 +35,8 @@ #include <asm/mach/map.h> #include "common.h" -#include <plat/gpmc.h> -#include <mach/board-zoom.h> -#include <plat/usb.h> +#include "board-zoom.h" +#include "gpmc.h" #include "gpmc-smsc911x.h" #include <video/omapdss.h> @@ -420,8 +419,8 @@ static void __init omap_ldp_init(void) omap_serial_init(); omap_sdrc_init(NULL, NULL); usb_musb_init(NULL); - board_nand_init(ldp_nand_partitions, - ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS, 0); + board_nand_init(ldp_nand_partitions, ARRAY_SIZE(ldp_nand_partitions), + ZOOM_NAND_CS, 0, nand_default_timings); omap_hsmmc_init(mmc); ldp_display_init(); diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c index d95f727..e3efcb8 100644 --- a/arch/arm/mach-omap2/board-n8x0.c +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -22,16 +22,17 @@ #include <linux/usb/musb.h> #include <linux/platform_data/spi-omap2-mcspi.h> #include <linux/platform_data/mtd-onenand-omap2.h> +#include <linux/mfd/menelaus.h> #include <sound/tlv320aic3x.h> #include <asm/mach/arch.h> #include <asm/mach-types.h> #include "common.h" -#include <plat/menelaus.h> -#include <plat/mmc.h> +#include "mmc.h" #include "mux.h" +#include "gpmc-onenand.h" #define TUSB6010_ASYNC_CS 1 #define TUSB6010_SYNC_CS 4 diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index d41ab98..5a3800d 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -39,19 +39,22 @@ #include <asm/mach/map.h> #include <asm/mach/flash.h> -#include "common.h" #include <video/omapdss.h> #include <video/omap-panel-tfp410.h> -#include <plat/gpmc.h> #include <linux/platform_data/mtd-nand-omap2.h> -#include <plat/usb.h> -#include <plat/omap_device.h> +#include "common.h" +#include "omap_device.h" +#include "gpmc.h" +#include "soc.h" #include "mux.h" #include "hsmmc.h" #include "pm.h" +#include "board-flash.h" #include "common-board-devices.h" +#define NAND_CS 0 + /* * OMAP3 Beagle revision * Run time detection of Beagle revision is done by reading GPIO. @@ -518,8 +521,9 @@ static void __init omap3_beagle_init(void) usb_musb_init(NULL); usbhs_init(&usbhs_bdata); - omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions, - ARRAY_SIZE(omap3beagle_nand_partitions)); + board_nand_init(omap3beagle_nand_partitions, + ARRAY_SIZE(omap3beagle_nand_partitions), NAND_CS, + NAND_BUSWIDTH_16, NULL); omap_twl4030_audio_init("omap3beagle"); /* Ensure msecure is mux'd to be able to set the RTC. */ diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index b9b776b..3c0b9a9 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -32,6 +32,7 @@ #include <linux/spi/ads7846.h> #include <linux/i2c/twl.h> #include <linux/usb/otg.h> +#include <linux/usb/musb.h> #include <linux/usb/nop-usb-xceiv.h> #include <linux/smsc911x.h> @@ -45,17 +46,20 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> -#include <plat/usb.h> #include <linux/platform_data/mtd-nand-omap2.h> #include "common.h" #include <linux/platform_data/spi-omap2-mcspi.h> #include <video/omapdss.h> #include <video/omap-panel-tfp410.h> +#include "soc.h" #include "mux.h" #include "sdram-micron-mt46h32m32lf-6.h" #include "hsmmc.h" #include "common-board-devices.h" +#include "board-flash.h" + +#define NAND_CS 0 #define OMAP3_EVM_TS_GPIO 175 #define OMAP3_EVM_EHCI_VBUS 22 @@ -731,8 +735,9 @@ static void __init omap3_evm_init(void) } usb_musb_init(&musb_board_data); usbhs_init(&usbhs_bdata); - omap_nand_flash_init(NAND_BUSWIDTH_16, omap3evm_nand_partitions, - ARRAY_SIZE(omap3evm_nand_partitions)); + board_nand_init(omap3evm_nand_partitions, + ARRAY_SIZE(omap3evm_nand_partitions), NAND_CS, + NAND_BUSWIDTH_16, NULL); omap_ads7846_init(1, OMAP3_EVM_TS_GPIO, 310, NULL); omap3evm_init_smsc911x(); diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c index 7bd8253..e84e2a8 100644 --- a/arch/arm/mach-omap2/board-omap3logic.c +++ b/arch/arm/mach-omap2/board-omap3logic.c @@ -34,16 +34,13 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> -#include "gpmc-smsc911x.h" -#include <plat/gpmc.h> -#include <plat/sdrc.h> -#include <plat/usb.h> - #include "common.h" #include "mux.h" #include "hsmmc.h" #include "control.h" #include "common-board-devices.h" +#include "gpmc.h" +#include "gpmc-smsc911x.h" #define OMAP3LOGIC_SMSC911X_CS 1 diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index 00a1f4a..ce31bd3 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -42,7 +42,6 @@ #include <asm/mach/map.h> #include "common.h" -#include <plat/usb.h> #include <video/omapdss.h> #include <linux/platform_data/mtd-nand-omap2.h> @@ -50,6 +49,7 @@ #include "sdram-micron-mt46h32m32lf-6.h" #include "hsmmc.h" #include "common-board-devices.h" +#include "gpmc-nand.h" #define PANDORA_WIFI_IRQ_GPIO 21 #define PANDORA_WIFI_NRESET_GPIO 23 @@ -602,7 +602,7 @@ static void __init omap3pandora_init(void) omap_ads7846_init(1, OMAP3_PANDORA_TS_GPIO, 0, NULL); usbhs_init(&usbhs_bdata); usb_musb_init(NULL); - gpmc_nand_init(&pandora_nand_data); + gpmc_nand_init(&pandora_nand_data, NULL); /* Ensure SDRC pins are mux'd for self-refresh */ omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c index 731235e..ba11245 100644 --- a/arch/arm/mach-omap2/board-omap3stalker.c +++ b/arch/arm/mach-omap2/board-omap3stalker.c @@ -40,9 +40,8 @@ #include <asm/mach/flash.h> #include "common.h" -#include <plat/gpmc.h> +#include "gpmc.h" #include <linux/platform_data/mtd-nand-omap2.h> -#include <plat/usb.h> #include <video/omapdss.h> #include <video/omap-panel-generic-dpi.h> #include <video/omap-panel-tfp410.h> diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c index 944ffc4..a225d81 100644 --- a/arch/arm/mach-omap2/board-omap3touchbook.c +++ b/arch/arm/mach-omap2/board-omap3touchbook.c @@ -44,12 +44,12 @@ #include <asm/system_info.h> #include "common.h" -#include <plat/gpmc.h> +#include "gpmc.h" #include <linux/platform_data/mtd-nand-omap2.h> -#include <plat/usb.h> #include "mux.h" #include "hsmmc.h" +#include "board-flash.h" #include "common-board-devices.h" #include <asm/setup.h> @@ -59,6 +59,8 @@ #define TB_BL_PWM_TIMER 9 #define TB_KILL_POWER_GPIO 168 +#define NAND_CS 0 + static unsigned long touchbook_revision; static struct mtd_partition omap3touchbook_nand_partitions[] = { @@ -365,8 +367,9 @@ static void __init omap3_touchbook_init(void) omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata); usb_musb_init(NULL); usbhs_init(&usbhs_bdata); - omap_nand_flash_init(NAND_BUSWIDTH_16, omap3touchbook_nand_partitions, - ARRAY_SIZE(omap3touchbook_nand_partitions)); + board_nand_init(omap3touchbook_nand_partitions, + ARRAY_SIZE(omap3touchbook_nand_partitions), NAND_CS, + NAND_BUSWIDTH_16, NULL); /* Ensure SDRC pins are mux'd for self-refresh */ omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index bfcd397..8c00b99 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -29,6 +29,7 @@ #include <linux/regulator/machine.h> #include <linux/regulator/fixed.h> #include <linux/ti_wilink_st.h> +#include <linux/usb/musb.h> #include <linux/wl12xx.h> #include <linux/platform_data/omap-abe-twl6040.h> @@ -38,12 +39,11 @@ #include <asm/mach/map.h> #include <video/omapdss.h> -#include "common.h" -#include <plat/usb.h> -#include <plat/mmc.h> #include <video/omap-panel-tfp410.h> +#include "common.h" #include "soc.h" +#include "mmc.h" #include "hsmmc.h" #include "control.h" #include "mux.h" diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index 56277a0..f5ba43f 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -48,14 +48,17 @@ #include <video/omapdss.h> #include <video/omap-panel-generic-dpi.h> #include <video/omap-panel-tfp410.h> -#include <plat/gpmc.h> -#include <plat/usb.h> +#include "common.h" #include "mux.h" #include "sdram-micron-mt46h32m32lf-6.h" +#include "gpmc.h" #include "hsmmc.h" +#include "board-flash.h" #include "common-board-devices.h" +#define NAND_CS 0 + #define OVERO_GPIO_BT_XGATE 15 #define OVERO_GPIO_W2W_NRESET 16 #define OVERO_GPIO_PENDOWN 114 @@ -494,8 +497,8 @@ static void __init overo_init(void) omap_serial_init(); omap_sdrc_init(mt46h32m32lf6_sdrc_params, mt46h32m32lf6_sdrc_params); - omap_nand_flash_init(0, overo_nand_partitions, - ARRAY_SIZE(overo_nand_partitions)); + board_nand_init(overo_nand_partitions, + ARRAY_SIZE(overo_nand_partitions), NAND_CS, 0, NULL); usb_musb_init(NULL); usbhs_init(&usbhs_bdata); overo_spi_init(); diff --git a/arch/arm/mach-omap2/board-rm680.c b/arch/arm/mach-omap2/board-rm680.c index 45997bf..1997e0e 100644 --- a/arch/arm/mach-omap2/board-rm680.c +++ b/arch/arm/mach-omap2/board-rm680.c @@ -22,17 +22,14 @@ #include <asm/mach/arch.h> #include <asm/mach-types.h> -#include <plat/i2c.h> -#include <plat/mmc.h> -#include <plat/usb.h> -#include <plat/gpmc.h> #include "common.h" -#include <plat/serial.h> - #include "mux.h" +#include "gpmc.h" +#include "mmc.h" #include "hsmmc.h" #include "sdram-nokia.h" #include "common-board-devices.h" +#include "gpmc-onenand.h" static struct regulator_consumer_supply rm680_vemmc_consumers[] = { REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"), diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index 020e03c..07005fe 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -31,9 +31,7 @@ #include <asm/system_info.h> #include "common.h" -#include <plat/dma.h> -#include <plat/gpmc.h> -#include <plat/omap-pm.h> +#include <plat-omap/dma-omap.h> #include "gpmc-smc91x.h" #include "board-rx51.h" @@ -52,8 +50,11 @@ #endif #include "mux.h" +#include "omap-pm.h" #include "hsmmc.h" #include "common-board-devices.h" +#include "gpmc.h" +#include "gpmc-onenand.h" #define SYSTEM_REV_B_USES_VAUX3 0x1699 #define SYSTEM_REV_S_USES_VAUX3 0x8 diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index 7bbb05d..c388aec 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -17,18 +17,18 @@ #include <linux/io.h> #include <linux/gpio.h> #include <linux/leds.h> +#include <linux/usb/musb.h> #include <linux/platform_data/spi-omap2-mcspi.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> -#include "common.h" -#include <plat/dma.h> -#include <plat/gpmc.h> -#include <plat/usb.h> +#include <plat-omap/dma-omap.h> +#include "common.h" #include "mux.h" +#include "gpmc.h" #include "pm.h" #include "sdram-nokia.h" diff --git a/arch/arm/mach-omap2/board-ti8168evm.c b/arch/arm/mach-omap2/board-ti8168evm.c index c4f8833..5e672c2 100644 --- a/arch/arm/mach-omap2/board-ti8168evm.c +++ b/arch/arm/mach-omap2/board-ti8168evm.c @@ -14,13 +14,14 @@ */ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/usb/musb.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include "common.h" -#include <plat/usb.h> static struct omap_musb_board_data musb_board_data = { .set_phy_power = ti81xx_musb_phy_power, diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c index afb2278..42e5f23 100644 --- a/arch/arm/mach-omap2/board-zoom-debugboard.c +++ b/arch/arm/mach-omap2/board-zoom-debugboard.c @@ -17,10 +17,10 @@ #include <linux/regulator/fixed.h> #include <linux/regulator/machine.h> -#include <plat/gpmc.h> +#include "gpmc.h" #include "gpmc-smsc911x.h" -#include <mach/board-zoom.h> +#include "board-zoom.h" #include "soc.h" #include "common.h" diff --git a/arch/arm/mach-omap2/board-zoom-display.c b/arch/arm/mach-omap2/board-zoom-display.c index b940ab2..1c7c834 100644 --- a/arch/arm/mach-omap2/board-zoom-display.c +++ b/arch/arm/mach-omap2/board-zoom-display.c @@ -16,8 +16,9 @@ #include <linux/spi/spi.h> #include <linux/platform_data/spi-omap2-mcspi.h> #include <video/omapdss.h> -#include <mach/board-zoom.h> +#include "board-zoom.h" +#include "soc.h" #include "common.h" #define LCD_PANEL_RESET_GPIO_PROD 96 diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c index c166fe1..26e07ad 100644 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c @@ -26,9 +26,8 @@ #include <asm/mach/map.h> #include "common.h" -#include <plat/usb.h> -#include <mach/board-zoom.h> +#include "board-zoom.h" #include "mux.h" #include "hsmmc.h" diff --git a/arch/arm/mach-omap2/board-zoom.c b/arch/arm/mach-omap2/board-zoom.c index 4994438..8feb4d9 100644 --- a/arch/arm/mach-omap2/board-zoom.c +++ b/arch/arm/mach-omap2/board-zoom.c @@ -22,9 +22,8 @@ #include <asm/mach/arch.h> #include "common.h" -#include <plat/usb.h> -#include <mach/board-zoom.h> +#include "board-zoom.h" #include "board-flash.h" #include "mux.h" @@ -113,8 +112,9 @@ static void __init omap_zoom_init(void) usbhs_init(&usbhs_bdata); } - board_nand_init(zoom_nand_partitions, ARRAY_SIZE(zoom_nand_partitions), - ZOOM_NAND_CS, NAND_BUSWIDTH_16); + board_nand_init(zoom_nand_partitions, + ARRAY_SIZE(zoom_nand_partitions), ZOOM_NAND_CS, + NAND_BUSWIDTH_16, nand_default_timings); zoom_debugboard_init(); zoom_peripherals_init(); diff --git a/arch/arm/mach-omap2/include/mach/board-zoom.h b/arch/arm/mach-omap2/board-zoom.h index 2e94869..2e94869 100644 --- a/arch/arm/mach-omap2/include/mach/board-zoom.h +++ b/arch/arm/mach-omap2/board-zoom.h diff --git a/arch/arm/mach-omap2/clkt2xxx_apll.c b/arch/arm/mach-omap2/clkt2xxx_apll.c index c2d1521..e3f0c1e 100644 --- a/arch/arm/mach-omap2/clkt2xxx_apll.c +++ b/arch/arm/mach-omap2/clkt2xxx_apll.c @@ -21,12 +21,11 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> #include <plat/prcm.h> #include "clock.h" #include "clock2xxx.h" -#include "cm2xxx_3xxx.h" +#include "cm2xxx.h" #include "cm-regbits-24xx.h" /* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */ diff --git a/arch/arm/mach-omap2/clkt2xxx_dpll.c b/arch/arm/mach-omap2/clkt2xxx_dpll.c index 1502a7b..399534c 100644 --- a/arch/arm/mach-omap2/clkt2xxx_dpll.c +++ b/arch/arm/mach-omap2/clkt2xxx_dpll.c @@ -14,10 +14,8 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "clock.h" -#include "cm2xxx_3xxx.h" +#include "cm2xxx.h" #include "cm-regbits-24xx.h" /* Private functions */ diff --git a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c index 4ae4392..0d2f14c 100644 --- a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c +++ b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c @@ -25,15 +25,13 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> -#include <plat/sram.h> -#include <plat/sdrc.h> - #include "clock.h" #include "clock2xxx.h" #include "opp2xxx.h" #include "cm2xxx_3xxx.h" #include "cm-regbits-24xx.h" +#include "sdrc.h" +#include "sram.h" /* #define DOWN_VARIABLE_DPLL 1 */ /* Experimental */ diff --git a/arch/arm/mach-omap2/clkt2xxx_osc.c b/arch/arm/mach-omap2/clkt2xxx_osc.c index c346092..e177737 100644 --- a/arch/arm/mach-omap2/clkt2xxx_osc.c +++ b/arch/arm/mach-omap2/clkt2xxx_osc.c @@ -23,8 +23,6 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "clock.h" #include "clock2xxx.h" #include "prm2xxx_3xxx.h" diff --git a/arch/arm/mach-omap2/clkt2xxx_sys.c b/arch/arm/mach-omap2/clkt2xxx_sys.c index 8693cfd..46683b3 100644 --- a/arch/arm/mach-omap2/clkt2xxx_sys.c +++ b/arch/arm/mach-omap2/clkt2xxx_sys.c @@ -22,8 +22,6 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "clock.h" #include "clock2xxx.h" #include "prm2xxx_3xxx.h" diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c index 3524f0e7..a38ebb2 100644 --- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c +++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c @@ -33,16 +33,14 @@ #include <linux/cpufreq.h> #include <linux/slab.h> -#include <plat/clock.h> -#include <plat/sram.h> -#include <plat/sdrc.h> - #include "soc.h" #include "clock.h" #include "clock2xxx.h" #include "opp2xxx.h" #include "cm2xxx_3xxx.h" #include "cm-regbits-24xx.h" +#include "sdrc.h" +#include "sram.h" const struct prcm_config *curr_prcm_set; const struct prcm_config *rate_table; diff --git a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c index 7c6da2f..6cf298e 100644 --- a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c +++ b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c @@ -21,14 +21,11 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> -#include <plat/sram.h> -#include <plat/sdrc.h> - #include "clock.h" #include "clock3xxx.h" #include "clock34xx.h" #include "sdrc.h" +#include "sram.h" #define CYCLES_PER_MHZ 1000000 diff --git a/arch/arm/mach-omap2/clkt_clksel.c b/arch/arm/mach-omap2/clkt_clksel.c index 3ff2211..53646fa 100644 --- a/arch/arm/mach-omap2/clkt_clksel.c +++ b/arch/arm/mach-omap2/clkt_clksel.c @@ -45,8 +45,6 @@ #include <linux/io.h> #include <linux/bug.h> -#include <plat/clock.h> - #include "clock.h" /* Private functions */ diff --git a/arch/arm/mach-omap2/clkt_dpll.c b/arch/arm/mach-omap2/clkt_dpll.c index 8041114..8463cc3 100644 --- a/arch/arm/mach-omap2/clkt_dpll.c +++ b/arch/arm/mach-omap2/clkt_dpll.c @@ -21,8 +21,6 @@ #include <asm/div64.h> -#include <plat/clock.h> - #include "soc.h" #include "clock.h" #include "cm-regbits-24xx.h" diff --git a/arch/arm/mach-omap2/clkt_iclk.c b/arch/arm/mach-omap2/clkt_iclk.c index 3d43fba..7c8d41e 100644 --- a/arch/arm/mach-omap2/clkt_iclk.c +++ b/arch/arm/mach-omap2/clkt_iclk.c @@ -14,7 +14,6 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> #include <plat/prcm.h> #include "clock.h" diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index 961ac8f..9205ea7 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -15,6 +15,7 @@ #undef DEBUG #include <linux/kernel.h> +#include <linux/export.h> #include <linux/list.h> #include <linux/errno.h> #include <linux/err.h> @@ -25,7 +26,6 @@ #include <asm/cpu.h> -#include <plat/clock.h> #include <plat/prcm.h> #include <trace/events/power.h> @@ -33,7 +33,8 @@ #include "soc.h" #include "clockdomain.h" #include "clock.h" -#include "cm2xxx_3xxx.h" +#include "cm2xxx.h" +#include "cm3xxx.h" #include "cm-regbits-24xx.h" #include "cm-regbits-34xx.h" @@ -47,6 +48,10 @@ u16 cpu_mask; */ static bool clkdm_control = true; +static LIST_HEAD(clocks); +static DEFINE_MUTEX(clocks_mutex); +static DEFINE_SPINLOCK(clockfw_lock); + /* * OMAP2+ specific clock functions */ @@ -512,12 +517,510 @@ void __init omap2_clk_print_new_rates(const char *hfclkin_ck_name, /* Common data */ -struct clk_functions omap2_clk_functions = { - .clk_enable = omap2_clk_enable, - .clk_disable = omap2_clk_disable, - .clk_round_rate = omap2_clk_round_rate, - .clk_set_rate = omap2_clk_set_rate, - .clk_set_parent = omap2_clk_set_parent, - .clk_disable_unused = omap2_clk_disable_unused, +int clk_enable(struct clk *clk) +{ + unsigned long flags; + int ret; + + if (clk == NULL || IS_ERR(clk)) + return -EINVAL; + + spin_lock_irqsave(&clockfw_lock, flags); + ret = omap2_clk_enable(clk); + spin_unlock_irqrestore(&clockfw_lock, flags); + + return ret; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable(struct clk *clk) +{ + unsigned long flags; + + if (clk == NULL || IS_ERR(clk)) + return; + + spin_lock_irqsave(&clockfw_lock, flags); + if (clk->usecount == 0) { + pr_err("Trying disable clock %s with 0 usecount\n", + clk->name); + WARN_ON(1); + goto out; + } + + omap2_clk_disable(clk); + +out: + spin_unlock_irqrestore(&clockfw_lock, flags); +} +EXPORT_SYMBOL(clk_disable); + +unsigned long clk_get_rate(struct clk *clk) +{ + unsigned long flags; + unsigned long ret; + + if (clk == NULL || IS_ERR(clk)) + return 0; + + spin_lock_irqsave(&clockfw_lock, flags); + ret = clk->rate; + spin_unlock_irqrestore(&clockfw_lock, flags); + + return ret; +} +EXPORT_SYMBOL(clk_get_rate); + +/* + * Optional clock functions defined in include/linux/clk.h + */ + +long clk_round_rate(struct clk *clk, unsigned long rate) +{ + unsigned long flags; + long ret; + + if (clk == NULL || IS_ERR(clk)) + return 0; + + spin_lock_irqsave(&clockfw_lock, flags); + ret = omap2_clk_round_rate(clk, rate); + spin_unlock_irqrestore(&clockfw_lock, flags); + + return ret; +} +EXPORT_SYMBOL(clk_round_rate); + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + unsigned long flags; + int ret = -EINVAL; + + if (clk == NULL || IS_ERR(clk)) + return ret; + + spin_lock_irqsave(&clockfw_lock, flags); + ret = omap2_clk_set_rate(clk, rate); + if (ret == 0) + propagate_rate(clk); + spin_unlock_irqrestore(&clockfw_lock, flags); + + return ret; +} +EXPORT_SYMBOL(clk_set_rate); + +int clk_set_parent(struct clk *clk, struct clk *parent) +{ + unsigned long flags; + int ret = -EINVAL; + + if (clk == NULL || IS_ERR(clk) || parent == NULL || IS_ERR(parent)) + return ret; + + spin_lock_irqsave(&clockfw_lock, flags); + if (clk->usecount == 0) { + ret = omap2_clk_set_parent(clk, parent); + if (ret == 0) + propagate_rate(clk); + } else { + ret = -EBUSY; + } + spin_unlock_irqrestore(&clockfw_lock, flags); + + return ret; +} +EXPORT_SYMBOL(clk_set_parent); + +struct clk *clk_get_parent(struct clk *clk) +{ + return clk->parent; +} +EXPORT_SYMBOL(clk_get_parent); + +/* + * OMAP specific clock functions shared between omap1 and omap2 + */ + +int __initdata mpurate; + +/* + * By default we use the rate set by the bootloader. + * You can override this with mpurate= cmdline option. + */ +static int __init omap_clk_setup(char *str) +{ + get_option(&str, &mpurate); + + if (!mpurate) + return 1; + + if (mpurate < 1000) + mpurate *= 1000000; + + return 1; +} +__setup("mpurate=", omap_clk_setup); + +/* Used for clocks that always have same value as the parent clock */ +unsigned long followparent_recalc(struct clk *clk) +{ + return clk->parent->rate; +} + +/* + * Used for clocks that have the same value as the parent clock, + * divided by some factor + */ +unsigned long omap_fixed_divisor_recalc(struct clk *clk) +{ + WARN_ON(!clk->fixed_div); + + return clk->parent->rate / clk->fixed_div; +} + +void clk_reparent(struct clk *child, struct clk *parent) +{ + list_del_init(&child->sibling); + if (parent) + list_add(&child->sibling, &parent->children); + child->parent = parent; + + /* now do the debugfs renaming to reattach the child + to the proper parent */ +} + +/* Propagate rate to children */ +void propagate_rate(struct clk *tclk) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &tclk->children, sibling) { + if (clkp->recalc) + clkp->rate = clkp->recalc(clkp); + propagate_rate(clkp); + } +} + +static LIST_HEAD(root_clks); + +/** + * recalculate_root_clocks - recalculate and propagate all root clocks + * + * Recalculates all root clocks (clocks with no parent), which if the + * clock's .recalc is set correctly, should also propagate their rates. + * Called at init. + */ +void recalculate_root_clocks(void) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &root_clks, sibling) { + if (clkp->recalc) + clkp->rate = clkp->recalc(clkp); + propagate_rate(clkp); + } +} + +/** + * clk_preinit - initialize any fields in the struct clk before clk init + * @clk: struct clk * to initialize + * + * Initialize any struct clk fields needed before normal clk initialization + * can run. No return value. + */ +void clk_preinit(struct clk *clk) +{ + INIT_LIST_HEAD(&clk->children); +} + +int clk_register(struct clk *clk) +{ + if (clk == NULL || IS_ERR(clk)) + return -EINVAL; + + /* + * trap out already registered clocks + */ + if (clk->node.next || clk->node.prev) + return 0; + + mutex_lock(&clocks_mutex); + if (clk->parent) + list_add(&clk->sibling, &clk->parent->children); + else + list_add(&clk->sibling, &root_clks); + + list_add(&clk->node, &clocks); + if (clk->init) + clk->init(clk); + mutex_unlock(&clocks_mutex); + + return 0; +} +EXPORT_SYMBOL(clk_register); + +void clk_unregister(struct clk *clk) +{ + if (clk == NULL || IS_ERR(clk)) + return; + + mutex_lock(&clocks_mutex); + list_del(&clk->sibling); + list_del(&clk->node); + mutex_unlock(&clocks_mutex); +} +EXPORT_SYMBOL(clk_unregister); + +void clk_enable_init_clocks(void) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &clocks, node) + if (clkp->flags & ENABLE_ON_INIT) + clk_enable(clkp); +} + +/** + * omap_clk_get_by_name - locate OMAP struct clk by its name + * @name: name of the struct clk to locate + * + * Locate an OMAP struct clk by its name. Assumes that struct clk + * names are unique. Returns NULL if not found or a pointer to the + * struct clk if found. + */ +struct clk *omap_clk_get_by_name(const char *name) +{ + struct clk *c; + struct clk *ret = NULL; + + mutex_lock(&clocks_mutex); + + list_for_each_entry(c, &clocks, node) { + if (!strcmp(c->name, name)) { + ret = c; + break; + } + } + + mutex_unlock(&clocks_mutex); + + return ret; +} + +int omap_clk_enable_autoidle_all(void) +{ + struct clk *c; + unsigned long flags; + + spin_lock_irqsave(&clockfw_lock, flags); + + list_for_each_entry(c, &clocks, node) + if (c->ops->allow_idle) + c->ops->allow_idle(c); + + spin_unlock_irqrestore(&clockfw_lock, flags); + + return 0; +} + +int omap_clk_disable_autoidle_all(void) +{ + struct clk *c; + unsigned long flags; + + spin_lock_irqsave(&clockfw_lock, flags); + + list_for_each_entry(c, &clocks, node) + if (c->ops->deny_idle) + c->ops->deny_idle(c); + + spin_unlock_irqrestore(&clockfw_lock, flags); + + return 0; +} + +/* + * Low level helpers + */ +static int clkll_enable_null(struct clk *clk) +{ + return 0; +} + +static void clkll_disable_null(struct clk *clk) +{ +} + +const struct clkops clkops_null = { + .enable = clkll_enable_null, + .disable = clkll_disable_null, +}; + +/* + * Dummy clock + * + * Used for clock aliases that are needed on some OMAPs, but not others + */ +struct clk dummy_ck = { + .name = "dummy", + .ops = &clkops_null, +}; + +/* + * + */ + +#ifdef CONFIG_OMAP_RESET_CLOCKS +/* + * Disable any unused clocks left on by the bootloader + */ +static int __init clk_disable_unused(void) +{ + struct clk *ck; + unsigned long flags; + + pr_info("clock: disabling unused clocks to save power\n"); + + spin_lock_irqsave(&clockfw_lock, flags); + list_for_each_entry(ck, &clocks, node) { + if (ck->ops == &clkops_null) + continue; + + if (ck->usecount > 0 || !ck->enable_reg) + continue; + + omap2_clk_disable_unused(ck); + } + spin_unlock_irqrestore(&clockfw_lock, flags); + + return 0; +} +late_initcall(clk_disable_unused); +late_initcall(omap_clk_enable_autoidle_all); +#endif + +#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) +/* + * debugfs support to trace clock tree hierarchy and attributes + */ + +#include <linux/debugfs.h> +#include <linux/seq_file.h> + +static struct dentry *clk_debugfs_root; + +static int clk_dbg_show_summary(struct seq_file *s, void *unused) +{ + struct clk *c; + struct clk *pa; + + mutex_lock(&clocks_mutex); + seq_printf(s, "%-30s %-30s %-10s %s\n", + "clock-name", "parent-name", "rate", "use-count"); + + list_for_each_entry(c, &clocks, node) { + pa = c->parent; + seq_printf(s, "%-30s %-30s %-10lu %d\n", + c->name, pa ? pa->name : "none", c->rate, + c->usecount); + } + mutex_unlock(&clocks_mutex); + + return 0; +} + +static int clk_dbg_open(struct inode *inode, struct file *file) +{ + return single_open(file, clk_dbg_show_summary, inode->i_private); +} + +static const struct file_operations debug_clock_fops = { + .open = clk_dbg_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, }; +static int clk_debugfs_register_one(struct clk *c) +{ + int err; + struct dentry *d; + struct clk *pa = c->parent; + + d = debugfs_create_dir(c->name, pa ? pa->dent : clk_debugfs_root); + if (!d) + return -ENOMEM; + c->dent = d; + + d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount); + if (!d) { + err = -ENOMEM; + goto err_out; + } + d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate); + if (!d) { + err = -ENOMEM; + goto err_out; + } + d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags); + if (!d) { + err = -ENOMEM; + goto err_out; + } + return 0; + +err_out: + debugfs_remove_recursive(c->dent); + return err; +} + +static int clk_debugfs_register(struct clk *c) +{ + int err; + struct clk *pa = c->parent; + + if (pa && !pa->dent) { + err = clk_debugfs_register(pa); + if (err) + return err; + } + + if (!c->dent) { + err = clk_debugfs_register_one(c); + if (err) + return err; + } + return 0; +} + +static int __init clk_debugfs_init(void) +{ + struct clk *c; + struct dentry *d; + int err; + + d = debugfs_create_dir("clock", NULL); + if (!d) + return -ENOMEM; + clk_debugfs_root = d; + + list_for_each_entry(c, &clocks, node) { + err = clk_debugfs_register(c); + if (err) + goto err_out; + } + + d = debugfs_create_file("summary", S_IRUGO, + d, NULL, &debug_clock_fops); + if (!d) + return -ENOMEM; + + return 0; +err_out: + debugfs_remove_recursive(clk_debugfs_root); + return err; +} +late_initcall(clk_debugfs_init); + +#endif /* defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) */ + diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 35ec5f3..cfba1ff 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -17,8 +17,323 @@ #define __ARCH_ARM_MACH_OMAP2_CLOCK_H #include <linux/kernel.h> +#include <linux/list.h> + +#include <linux/clkdev.h> + +struct omap_clk { + u16 cpu; + struct clk_lookup lk; +}; + +#define CLK(dev, con, ck, cp) \ + { \ + .cpu = cp, \ + .lk = { \ + .dev_id = dev, \ + .con_id = con, \ + .clk = ck, \ + }, \ + } + +/* Platform flags for the clkdev-OMAP integration code */ +#define CK_242X (1 << 0) +#define CK_243X (1 << 1) /* 243x, 253x */ +#define CK_3430ES1 (1 << 2) /* 34xxES1 only */ +#define CK_3430ES2PLUS (1 << 3) /* 34xxES2, ES3, non-Sitara 35xx only */ +#define CK_AM35XX (1 << 4) /* Sitara AM35xx */ +#define CK_36XX (1 << 5) /* 36xx/37xx-specific clocks */ +#define CK_443X (1 << 6) +#define CK_TI816X (1 << 7) +#define CK_446X (1 << 8) +#define CK_AM33XX (1 << 9) /* AM33xx specific clocks */ + + +#define CK_34XX (CK_3430ES1 | CK_3430ES2PLUS) +#define CK_3XXX (CK_34XX | CK_AM35XX | CK_36XX) + +struct module; +struct clk; +struct clockdomain; + +/* Temporary, needed during the common clock framework conversion */ +#define __clk_get_name(clk) (clk->name) +#define __clk_get_parent(clk) (clk->parent) +#define __clk_get_rate(clk) (clk->rate) + +/** + * struct clkops - some clock function pointers + * @enable: fn ptr that enables the current clock in hardware + * @disable: fn ptr that enables the current clock in hardware + * @find_idlest: function returning the IDLEST register for the clock's IP blk + * @find_companion: function returning the "companion" clk reg for the clock + * @allow_idle: fn ptr that enables autoidle for the current clock in hardware + * @deny_idle: fn ptr that disables autoidle for the current clock in hardware + * + * A "companion" clk is an accompanying clock to the one being queried + * that must be enabled for the IP module connected to the clock to + * become accessible by the hardware. Neither @find_idlest nor + * @find_companion should be needed; that information is IP + * block-specific; the hwmod code has been created to handle this, but + * until hwmod data is ready and drivers have been converted to use PM + * runtime calls in place of clk_enable()/clk_disable(), @find_idlest and + * @find_companion must, unfortunately, remain. + */ +struct clkops { + int (*enable)(struct clk *); + void (*disable)(struct clk *); + void (*find_idlest)(struct clk *, void __iomem **, + u8 *, u8 *); + void (*find_companion)(struct clk *, void __iomem **, + u8 *); + void (*allow_idle)(struct clk *); + void (*deny_idle)(struct clk *); +}; + +/* struct clksel_rate.flags possibilities */ +#define RATE_IN_242X (1 << 0) +#define RATE_IN_243X (1 << 1) +#define RATE_IN_3430ES1 (1 << 2) /* 3430ES1 rates only */ +#define RATE_IN_3430ES2PLUS (1 << 3) /* 3430 ES >= 2 rates only */ +#define RATE_IN_36XX (1 << 4) +#define RATE_IN_4430 (1 << 5) +#define RATE_IN_TI816X (1 << 6) +#define RATE_IN_4460 (1 << 7) +#define RATE_IN_AM33XX (1 << 8) +#define RATE_IN_TI814X (1 << 9) + +#define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X) +#define RATE_IN_34XX (RATE_IN_3430ES1 | RATE_IN_3430ES2PLUS) +#define RATE_IN_3XXX (RATE_IN_34XX | RATE_IN_36XX) +#define RATE_IN_44XX (RATE_IN_4430 | RATE_IN_4460) + +/* RATE_IN_3430ES2PLUS_36XX includes 34xx/35xx with ES >=2, and all 36xx/37xx */ +#define RATE_IN_3430ES2PLUS_36XX (RATE_IN_3430ES2PLUS | RATE_IN_36XX) + + +/** + * struct clksel_rate - register bitfield values corresponding to clk divisors + * @val: register bitfield value (shifted to bit 0) + * @div: clock divisor corresponding to @val + * @flags: (see "struct clksel_rate.flags possibilities" above) + * + * @val should match the value of a read from struct clk.clksel_reg + * AND'ed with struct clk.clksel_mask, shifted right to bit 0. + * + * @div is the divisor that should be applied to the parent clock's rate + * to produce the current clock's rate. + */ +struct clksel_rate { + u32 val; + u8 div; + u16 flags; +}; + +/** + * struct clksel - available parent clocks, and a pointer to their divisors + * @parent: struct clk * to a possible parent clock + * @rates: available divisors for this parent clock + * + * A struct clksel is always associated with one or more struct clks + * and one or more struct clksel_rates. + */ +struct clksel { + struct clk *parent; + const struct clksel_rate *rates; +}; + +/** + * struct dpll_data - DPLL registers and integration data + * @mult_div1_reg: register containing the DPLL M and N bitfields + * @mult_mask: mask of the DPLL M bitfield in @mult_div1_reg + * @div1_mask: mask of the DPLL N bitfield in @mult_div1_reg + * @clk_bypass: struct clk pointer to the clock's bypass clock input + * @clk_ref: struct clk pointer to the clock's reference clock input + * @control_reg: register containing the DPLL mode bitfield + * @enable_mask: mask of the DPLL mode bitfield in @control_reg + * @last_rounded_rate: cache of the last rate result of omap2_dpll_round_rate() + * @last_rounded_m: cache of the last M result of omap2_dpll_round_rate() + * @max_multiplier: maximum valid non-bypass multiplier value (actual) + * @last_rounded_n: cache of the last N result of omap2_dpll_round_rate() + * @min_divider: minimum valid non-bypass divider value (actual) + * @max_divider: maximum valid non-bypass divider value (actual) + * @modes: possible values of @enable_mask + * @autoidle_reg: register containing the DPLL autoidle mode bitfield + * @idlest_reg: register containing the DPLL idle status bitfield + * @autoidle_mask: mask of the DPLL autoidle mode bitfield in @autoidle_reg + * @freqsel_mask: mask of the DPLL jitter correction bitfield in @control_reg + * @idlest_mask: mask of the DPLL idle status bitfield in @idlest_reg + * @auto_recal_bit: bitshift of the driftguard enable bit in @control_reg + * @recal_en_bit: bitshift of the PRM_IRQENABLE_* bit for recalibration IRQs + * @recal_st_bit: bitshift of the PRM_IRQSTATUS_* bit for recalibration IRQs + * @flags: DPLL type/features (see below) + * + * Possible values for @flags: + * DPLL_J_TYPE: "J-type DPLL" (only some 36xx, 4xxx DPLLs) + * + * @freqsel_mask is only used on the OMAP34xx family and AM35xx. + * + * XXX Some DPLLs have multiple bypass inputs, so it's not technically + * correct to only have one @clk_bypass pointer. + * + * XXX The runtime-variable fields (@last_rounded_rate, @last_rounded_m, + * @last_rounded_n) should be separated from the runtime-fixed fields + * and placed into a different structure, so that the runtime-fixed data + * can be placed into read-only space. + */ +struct dpll_data { + void __iomem *mult_div1_reg; + u32 mult_mask; + u32 div1_mask; + struct clk *clk_bypass; + struct clk *clk_ref; + void __iomem *control_reg; + u32 enable_mask; + unsigned long last_rounded_rate; + u16 last_rounded_m; + u16 max_multiplier; + u8 last_rounded_n; + u8 min_divider; + u16 max_divider; + u8 modes; + void __iomem *autoidle_reg; + void __iomem *idlest_reg; + u32 autoidle_mask; + u32 freqsel_mask; + u32 idlest_mask; + u32 dco_mask; + u32 sddiv_mask; + u8 auto_recal_bit; + u8 recal_en_bit; + u8 recal_st_bit; + u8 flags; +}; + +/* + * struct clk.flags possibilities + * + * XXX document the rest of the clock flags here + * + * CLOCK_CLKOUTX2: (OMAP4 only) DPLL CLKOUT and CLKOUTX2 GATE_CTRL + * bits share the same register. This flag allows the + * omap4_dpllmx*() code to determine which GATE_CTRL bit field + * should be used. This is a temporary solution - a better approach + * would be to associate clock type-specific data with the clock, + * similar to the struct dpll_data approach. + */ +#define ENABLE_REG_32BIT (1 << 0) /* Use 32-bit access */ +#define CLOCK_IDLE_CONTROL (1 << 1) +#define CLOCK_NO_IDLE_PARENT (1 << 2) +#define ENABLE_ON_INIT (1 << 3) /* Enable upon framework init */ +#define INVERT_ENABLE (1 << 4) /* 0 enables, 1 disables */ +#define CLOCK_CLKOUTX2 (1 << 5) + +/** + * struct clk - OMAP struct clk + * @node: list_head connecting this clock into the full clock list + * @ops: struct clkops * for this clock + * @name: the name of the clock in the hardware (used in hwmod data and debug) + * @parent: pointer to this clock's parent struct clk + * @children: list_head connecting to the child clks' @sibling list_heads + * @sibling: list_head connecting this clk to its parent clk's @children + * @rate: current clock rate + * @enable_reg: register to write to enable the clock (see @enable_bit) + * @recalc: fn ptr that returns the clock's current rate + * @set_rate: fn ptr that can change the clock's current rate + * @round_rate: fn ptr that can round the clock's current rate + * @init: fn ptr to do clock-specific initialization + * @enable_bit: bitshift to write to enable/disable the clock (see @enable_reg) + * @usecount: number of users that have requested this clock to be enabled + * @fixed_div: when > 0, this clock's rate is its parent's rate / @fixed_div + * @flags: see "struct clk.flags possibilities" above + * @clksel_reg: for clksel clks, register va containing src/divisor select + * @clksel_mask: bitmask in @clksel_reg for the src/divisor selector + * @clksel: for clksel clks, pointer to struct clksel for this clock + * @dpll_data: for DPLLs, pointer to struct dpll_data for this clock + * @clkdm_name: clockdomain name that this clock is contained in + * @clkdm: pointer to struct clockdomain, resolved from @clkdm_name at runtime + * @rate_offset: bitshift for rate selection bitfield (OMAP1 only) + * @src_offset: bitshift for source selection bitfield (OMAP1 only) + * + * XXX @rate_offset, @src_offset should probably be removed and OMAP1 + * clock code converted to use clksel. + * + * XXX @usecount is poorly named. It should be "enable_count" or + * something similar. "users" in the description refers to kernel + * code (core code or drivers) that have called clk_enable() and not + * yet called clk_disable(); the usecount of parent clocks is also + * incremented by the clock code when clk_enable() is called on child + * clocks and decremented by the clock code when clk_disable() is + * called on child clocks. + * + * XXX @clkdm, @usecount, @children, @sibling should be marked for + * internal use only. + * + * @children and @sibling are used to optimize parent-to-child clock + * tree traversals. (child-to-parent traversals use @parent.) + * + * XXX The notion of the clock's current rate probably needs to be + * separated from the clock's target rate. + */ +struct clk { + struct list_head node; + const struct clkops *ops; + const char *name; + struct clk *parent; + struct list_head children; + struct list_head sibling; /* node for children */ + unsigned long rate; + void __iomem *enable_reg; + unsigned long (*recalc)(struct clk *); + int (*set_rate)(struct clk *, unsigned long); + long (*round_rate)(struct clk *, unsigned long); + void (*init)(struct clk *); + u8 enable_bit; + s8 usecount; + u8 fixed_div; + u8 flags; + void __iomem *clksel_reg; + u32 clksel_mask; + const struct clksel *clksel; + struct dpll_data *dpll_data; + const char *clkdm_name; + struct clockdomain *clkdm; +#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) + struct dentry *dent; /* For visible tree hierarchy */ +#endif +}; + +struct clk_functions { + int (*clk_enable)(struct clk *clk); + void (*clk_disable)(struct clk *clk); + long (*clk_round_rate)(struct clk *clk, unsigned long rate); + int (*clk_set_rate)(struct clk *clk, unsigned long rate); + int (*clk_set_parent)(struct clk *clk, struct clk *parent); + void (*clk_allow_idle)(struct clk *clk); + void (*clk_deny_idle)(struct clk *clk); + void (*clk_disable_unused)(struct clk *clk); +}; + +extern int mpurate; + +extern int clk_init(struct clk_functions *custom_clocks); +extern void clk_preinit(struct clk *clk); +extern int clk_register(struct clk *clk); +extern void clk_reparent(struct clk *child, struct clk *parent); +extern void clk_unregister(struct clk *clk); +extern void propagate_rate(struct clk *clk); +extern void recalculate_root_clocks(void); +extern unsigned long followparent_recalc(struct clk *clk); +extern void clk_enable_init_clocks(void); +unsigned long omap_fixed_divisor_recalc(struct clk *clk); +extern struct clk *omap_clk_get_by_name(const char *name); +extern int omap_clk_enable_autoidle_all(void); +extern int omap_clk_disable_autoidle_all(void); + +extern const struct clkops clkops_null; + +extern struct clk dummy_ck; -#include <plat/clock.h> /* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */ #define CORE_CLK_SRC_32K 0x0 diff --git a/arch/arm/mach-omap2/clock2420_data.c b/arch/arm/mach-omap2/clock2420_data.c index c3cde1a..da1e388 100644 --- a/arch/arm/mach-omap2/clock2420_data.c +++ b/arch/arm/mach-omap2/clock2420_data.c @@ -18,14 +18,12 @@ #include <linux/clk.h> #include <linux/list.h> -#include <plat/clkdev_omap.h> - #include "soc.h" #include "iomap.h" #include "clock.h" #include "clock2xxx.h" #include "opp2xxx.h" -#include "cm2xxx_3xxx.h" +#include "cm2xxx.h" #include "prm2xxx_3xxx.h" #include "prm-regbits-24xx.h" #include "cm-regbits-24xx.h" @@ -1935,8 +1933,6 @@ int __init omap2420_clk_init(void) cpu_mask = RATE_IN_242X; rate_table = omap2420_rate_table; - clk_init(&omap2_clk_functions); - for (c = omap2420_clks; c < omap2420_clks + ARRAY_SIZE(omap2420_clks); c++) clk_preinit(c->lk.clk); diff --git a/arch/arm/mach-omap2/clock2430.c b/arch/arm/mach-omap2/clock2430.c index a8e3261..e37df53 100644 --- a/arch/arm/mach-omap2/clock2430.c +++ b/arch/arm/mach-omap2/clock2430.c @@ -21,13 +21,11 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "soc.h" #include "iomap.h" #include "clock.h" #include "clock2xxx.h" -#include "cm2xxx_3xxx.h" +#include "cm2xxx.h" #include "cm-regbits-24xx.h" /** diff --git a/arch/arm/mach-omap2/clock2430_data.c b/arch/arm/mach-omap2/clock2430_data.c index 22404fe..c97dafe 100644 --- a/arch/arm/mach-omap2/clock2430_data.c +++ b/arch/arm/mach-omap2/clock2430_data.c @@ -17,14 +17,12 @@ #include <linux/clk.h> #include <linux/list.h> -#include <plat/clkdev_omap.h> - #include "soc.h" #include "iomap.h" #include "clock.h" #include "clock2xxx.h" #include "opp2xxx.h" -#include "cm2xxx_3xxx.h" +#include "cm2xxx.h" #include "prm2xxx_3xxx.h" #include "prm-regbits-24xx.h" #include "cm-regbits-24xx.h" @@ -2034,8 +2032,6 @@ int __init omap2430_clk_init(void) cpu_mask = RATE_IN_243X; rate_table = omap2430_rate_table; - clk_init(&omap2_clk_functions); - for (c = omap2430_clks; c < omap2430_clks + ARRAY_SIZE(omap2430_clks); c++) clk_preinit(c->lk.clk); diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c index e92be1f..5feee16 100644 --- a/arch/arm/mach-omap2/clock2xxx.c +++ b/arch/arm/mach-omap2/clock2xxx.c @@ -22,8 +22,6 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "soc.h" #include "clock.h" #include "clock2xxx.h" diff --git a/arch/arm/mach-omap2/clock33xx_data.c b/arch/arm/mach-omap2/clock33xx_data.c index 1a45d6b..17e3de5 100644 --- a/arch/arm/mach-omap2/clock33xx_data.c +++ b/arch/arm/mach-omap2/clock33xx_data.c @@ -17,9 +17,8 @@ #include <linux/kernel.h> #include <linux/list.h> #include <linux/clk.h> -#include <plat/clkdev_omap.h> -#include "am33xx.h" +#include "soc.h" #include "iomap.h" #include "control.h" #include "clock.h" @@ -1087,8 +1086,6 @@ int __init am33xx_clk_init(void) cpu_clkflg = CK_AM33XX; } - clk_init(&omap2_clk_functions); - for (c = am33xx_clks; c < am33xx_clks + ARRAY_SIZE(am33xx_clks); c++) clk_preinit(c->lk.clk); diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c index 1fc96b9..e41819b 100644 --- a/arch/arm/mach-omap2/clock34xx.c +++ b/arch/arm/mach-omap2/clock34xx.c @@ -21,11 +21,9 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "clock.h" #include "clock34xx.h" -#include "cm2xxx_3xxx.h" +#include "cm3xxx.h" #include "cm-regbits-34xx.h" /** diff --git a/arch/arm/mach-omap2/clock3517.c b/arch/arm/mach-omap2/clock3517.c index 2e97d08..622ea05 100644 --- a/arch/arm/mach-omap2/clock3517.c +++ b/arch/arm/mach-omap2/clock3517.c @@ -21,11 +21,9 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "clock.h" #include "clock3517.h" -#include "cm2xxx_3xxx.h" +#include "cm3xxx.h" #include "cm-regbits-34xx.h" /* diff --git a/arch/arm/mach-omap2/clock36xx.c b/arch/arm/mach-omap2/clock36xx.c index 0c5e25e..0e1e9e4 100644 --- a/arch/arm/mach-omap2/clock36xx.c +++ b/arch/arm/mach-omap2/clock36xx.c @@ -22,8 +22,6 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "clock.h" #include "clock36xx.h" diff --git a/arch/arm/mach-omap2/clock3xxx.c b/arch/arm/mach-omap2/clock3xxx.c index 83bb014..3e8aca2 100644 --- a/arch/arm/mach-omap2/clock3xxx.c +++ b/arch/arm/mach-omap2/clock3xxx.c @@ -21,8 +21,6 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> - #include "soc.h" #include "clock.h" #include "clock3xxx.h" diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index 1f42c9d..6cca199 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -21,8 +21,6 @@ #include <linux/list.h> #include <linux/io.h> -#include <plat/clkdev_omap.h> - #include "soc.h" #include "iomap.h" #include "clock.h" @@ -30,7 +28,7 @@ #include "clock34xx.h" #include "clock36xx.h" #include "clock3517.h" -#include "cm2xxx_3xxx.h" +#include "cm3xxx.h" #include "cm-regbits-34xx.h" #include "prm2xxx_3xxx.h" #include "prm-regbits-34xx.h" @@ -3573,8 +3571,6 @@ int __init omap3xxx_clk_init(void) else dpll4_dd = dpll4_dd_34xx; - clk_init(&omap2_clk_functions); - for (c = omap3xxx_clks; c < omap3xxx_clks + ARRAY_SIZE(omap3xxx_clks); c++) clk_preinit(c->lk.clk); diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index 6efc30c..2a450c9 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -28,8 +28,6 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clkdev_omap.h> - #include "soc.h" #include "iomap.h" #include "clock.h" @@ -3366,8 +3364,6 @@ int __init omap4xxx_clk_init(void) return 0; } - clk_init(&omap2_clk_functions); - /* * Must stay commented until all OMAP SoC drivers are * converted to runtime PM, or drivers may start crashing diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index 512e79a..64e5046 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -27,7 +27,8 @@ #include <linux/bitops.h> -#include <plat/clock.h> +#include "soc.h" +#include "clock.h" #include "clockdomain.h" /* clkdm_list contains all registered struct clockdomains */ diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h index 629576b..bc42446 100644 --- a/arch/arm/mach-omap2/clockdomain.h +++ b/arch/arm/mach-omap2/clockdomain.h @@ -18,9 +18,8 @@ #include <linux/spinlock.h> #include "powerdomain.h" -#include <plat/clock.h> -#include <plat/omap_hwmod.h> -#include <plat/cpu.h> +#include "clock.h" +#include "omap_hwmod.h" /* * Clockdomain flags diff --git a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c deleted file mode 100644 index 70294f5..0000000 --- a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c +++ /dev/null @@ -1,339 +0,0 @@ -/* - * OMAP2 and OMAP3 clockdomain control - * - * Copyright (C) 2008-2010 Texas Instruments, Inc. - * Copyright (C) 2008-2010 Nokia Corporation - * - * Derived from mach-omap2/clockdomain.c written by Paul Walmsley - * Rajendra Nayak <rnayak@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/types.h> -#include <plat/prcm.h> -#include "prm.h" -#include "prm2xxx_3xxx.h" -#include "cm.h" -#include "cm2xxx_3xxx.h" -#include "cm-regbits-24xx.h" -#include "cm-regbits-34xx.h" -#include "prm-regbits-24xx.h" -#include "clockdomain.h" - -static int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - omap2_prm_set_mod_reg_bits((1 << clkdm2->dep_bit), - clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP); - return 0; -} - -static int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - omap2_prm_clear_mod_reg_bits((1 << clkdm2->dep_bit), - clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP); - return 0; -} - -static int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, - PM_WKDEP, (1 << clkdm2->dep_bit)); -} - -static int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm) -{ - struct clkdm_dep *cd; - u32 mask = 0; - - for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { - if (!cd->clkdm) - continue; /* only happens if data is erroneous */ - - /* PRM accesses are slow, so minimize them */ - mask |= 1 << cd->clkdm->dep_bit; - atomic_set(&cd->wkdep_usecount, 0); - } - - omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, - PM_WKDEP); - return 0; -} - -static int omap3_clkdm_add_sleepdep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - omap2_cm_set_mod_reg_bits((1 << clkdm2->dep_bit), - clkdm1->pwrdm.ptr->prcm_offs, - OMAP3430_CM_SLEEPDEP); - return 0; -} - -static int omap3_clkdm_del_sleepdep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - omap2_cm_clear_mod_reg_bits((1 << clkdm2->dep_bit), - clkdm1->pwrdm.ptr->prcm_offs, - OMAP3430_CM_SLEEPDEP); - return 0; -} - -static int omap3_clkdm_read_sleepdep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, - OMAP3430_CM_SLEEPDEP, (1 << clkdm2->dep_bit)); -} - -static int omap3_clkdm_clear_all_sleepdeps(struct clockdomain *clkdm) -{ - struct clkdm_dep *cd; - u32 mask = 0; - - for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) { - if (!cd->clkdm) - continue; /* only happens if data is erroneous */ - - /* PRM accesses are slow, so minimize them */ - mask |= 1 << cd->clkdm->dep_bit; - atomic_set(&cd->sleepdep_usecount, 0); - } - omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, - OMAP3430_CM_SLEEPDEP); - return 0; -} - -static int omap2_clkdm_sleep(struct clockdomain *clkdm) -{ - omap2_cm_set_mod_reg_bits(OMAP24XX_FORCESTATE_MASK, - clkdm->pwrdm.ptr->prcm_offs, - OMAP2_PM_PWSTCTRL); - return 0; -} - -static int omap2_clkdm_wakeup(struct clockdomain *clkdm) -{ - omap2_cm_clear_mod_reg_bits(OMAP24XX_FORCESTATE_MASK, - clkdm->pwrdm.ptr->prcm_offs, - OMAP2_PM_PWSTCTRL); - return 0; -} - -static void omap2_clkdm_allow_idle(struct clockdomain *clkdm) -{ - if (atomic_read(&clkdm->usecount) > 0) - _clkdm_add_autodeps(clkdm); - - omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); -} - -static void omap2_clkdm_deny_idle(struct clockdomain *clkdm) -{ - omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - - if (atomic_read(&clkdm->usecount) > 0) - _clkdm_del_autodeps(clkdm); -} - -static void _enable_hwsup(struct clockdomain *clkdm) -{ - if (cpu_is_omap24xx()) - omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - else if (cpu_is_omap34xx()) - omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); -} - -static void _disable_hwsup(struct clockdomain *clkdm) -{ - if (cpu_is_omap24xx()) - omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - else if (cpu_is_omap34xx()) - omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); -} - -static int omap3_clkdm_sleep(struct clockdomain *clkdm) -{ - omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - return 0; -} - -static int omap3_clkdm_wakeup(struct clockdomain *clkdm) -{ - omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - return 0; -} - -static int omap2_clkdm_clk_enable(struct clockdomain *clkdm) -{ - bool hwsup = false; - - if (!clkdm->clktrctrl_mask) - return 0; - - hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - - if (hwsup) { - /* Disable HW transitions when we are changing deps */ - _disable_hwsup(clkdm); - _clkdm_add_autodeps(clkdm); - _enable_hwsup(clkdm); - } else { - if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) - omap2_clkdm_wakeup(clkdm); - } - - return 0; -} - -static int omap2_clkdm_clk_disable(struct clockdomain *clkdm) -{ - bool hwsup = false; - - if (!clkdm->clktrctrl_mask) - return 0; - - hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - - if (hwsup) { - /* Disable HW transitions when we are changing deps */ - _disable_hwsup(clkdm); - _clkdm_del_autodeps(clkdm); - _enable_hwsup(clkdm); - } else { - if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) - omap2_clkdm_sleep(clkdm); - } - - return 0; -} - -static void omap3_clkdm_allow_idle(struct clockdomain *clkdm) -{ - if (atomic_read(&clkdm->usecount) > 0) - _clkdm_add_autodeps(clkdm); - - omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); -} - -static void omap3_clkdm_deny_idle(struct clockdomain *clkdm) -{ - omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - - if (atomic_read(&clkdm->usecount) > 0) - _clkdm_del_autodeps(clkdm); -} - -static int omap3xxx_clkdm_clk_enable(struct clockdomain *clkdm) -{ - bool hwsup = false; - - if (!clkdm->clktrctrl_mask) - return 0; - - /* - * The CLKDM_MISSING_IDLE_REPORTING flag documentation has - * more details on the unpleasant problem this is working - * around - */ - if ((clkdm->flags & CLKDM_MISSING_IDLE_REPORTING) && - (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)) { - omap3_clkdm_wakeup(clkdm); - return 0; - } - - hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - - if (hwsup) { - /* Disable HW transitions when we are changing deps */ - _disable_hwsup(clkdm); - _clkdm_add_autodeps(clkdm); - _enable_hwsup(clkdm); - } else { - if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) - omap3_clkdm_wakeup(clkdm); - } - - return 0; -} - -static int omap3xxx_clkdm_clk_disable(struct clockdomain *clkdm) -{ - bool hwsup = false; - - if (!clkdm->clktrctrl_mask) - return 0; - - /* - * The CLKDM_MISSING_IDLE_REPORTING flag documentation has - * more details on the unpleasant problem this is working - * around - */ - if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING && - !(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) { - _enable_hwsup(clkdm); - return 0; - } - - hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, - clkdm->clktrctrl_mask); - - if (hwsup) { - /* Disable HW transitions when we are changing deps */ - _disable_hwsup(clkdm); - _clkdm_del_autodeps(clkdm); - _enable_hwsup(clkdm); - } else { - if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) - omap3_clkdm_sleep(clkdm); - } - - return 0; -} - -struct clkdm_ops omap2_clkdm_operations = { - .clkdm_add_wkdep = omap2_clkdm_add_wkdep, - .clkdm_del_wkdep = omap2_clkdm_del_wkdep, - .clkdm_read_wkdep = omap2_clkdm_read_wkdep, - .clkdm_clear_all_wkdeps = omap2_clkdm_clear_all_wkdeps, - .clkdm_sleep = omap2_clkdm_sleep, - .clkdm_wakeup = omap2_clkdm_wakeup, - .clkdm_allow_idle = omap2_clkdm_allow_idle, - .clkdm_deny_idle = omap2_clkdm_deny_idle, - .clkdm_clk_enable = omap2_clkdm_clk_enable, - .clkdm_clk_disable = omap2_clkdm_clk_disable, -}; - -struct clkdm_ops omap3_clkdm_operations = { - .clkdm_add_wkdep = omap2_clkdm_add_wkdep, - .clkdm_del_wkdep = omap2_clkdm_del_wkdep, - .clkdm_read_wkdep = omap2_clkdm_read_wkdep, - .clkdm_clear_all_wkdeps = omap2_clkdm_clear_all_wkdeps, - .clkdm_add_sleepdep = omap3_clkdm_add_sleepdep, - .clkdm_del_sleepdep = omap3_clkdm_del_sleepdep, - .clkdm_read_sleepdep = omap3_clkdm_read_sleepdep, - .clkdm_clear_all_sleepdeps = omap3_clkdm_clear_all_sleepdeps, - .clkdm_sleep = omap3_clkdm_sleep, - .clkdm_wakeup = omap3_clkdm_wakeup, - .clkdm_allow_idle = omap3_clkdm_allow_idle, - .clkdm_deny_idle = omap3_clkdm_deny_idle, - .clkdm_clk_enable = omap3xxx_clkdm_clk_enable, - .clkdm_clk_disable = omap3xxx_clkdm_clk_disable, -}; diff --git a/arch/arm/mach-omap2/clockdomain33xx.c b/arch/arm/mach-omap2/clockdomain33xx.c deleted file mode 100644 index aca6388..0000000 --- a/arch/arm/mach-omap2/clockdomain33xx.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * AM33XX clockdomain control - * - * Copyright (C) 2011-2012 Texas Instruments Incorporated - http://www.ti.com/ - * Vaibhav Hiremath <hvaibhav@ti.com> - * - * Derived from mach-omap2/clockdomain44xx.c written by Rajendra Nayak - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/kernel.h> - -#include "clockdomain.h" -#include "cm33xx.h" - - -static int am33xx_clkdm_sleep(struct clockdomain *clkdm) -{ - am33xx_cm_clkdm_force_sleep(clkdm->cm_inst, clkdm->clkdm_offs); - return 0; -} - -static int am33xx_clkdm_wakeup(struct clockdomain *clkdm) -{ - am33xx_cm_clkdm_force_wakeup(clkdm->cm_inst, clkdm->clkdm_offs); - return 0; -} - -static void am33xx_clkdm_allow_idle(struct clockdomain *clkdm) -{ - am33xx_cm_clkdm_enable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); -} - -static void am33xx_clkdm_deny_idle(struct clockdomain *clkdm) -{ - am33xx_cm_clkdm_disable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); -} - -static int am33xx_clkdm_clk_enable(struct clockdomain *clkdm) -{ - if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) - return am33xx_clkdm_wakeup(clkdm); - - return 0; -} - -static int am33xx_clkdm_clk_disable(struct clockdomain *clkdm) -{ - bool hwsup = false; - - hwsup = am33xx_cm_is_clkdm_in_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); - - if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) - am33xx_clkdm_sleep(clkdm); - - return 0; -} - -struct clkdm_ops am33xx_clkdm_operations = { - .clkdm_sleep = am33xx_clkdm_sleep, - .clkdm_wakeup = am33xx_clkdm_wakeup, - .clkdm_allow_idle = am33xx_clkdm_allow_idle, - .clkdm_deny_idle = am33xx_clkdm_deny_idle, - .clkdm_clk_enable = am33xx_clkdm_clk_enable, - .clkdm_clk_disable = am33xx_clkdm_clk_disable, -}; diff --git a/arch/arm/mach-omap2/clockdomain44xx.c b/arch/arm/mach-omap2/clockdomain44xx.c deleted file mode 100644 index 6fc6155..0000000 --- a/arch/arm/mach-omap2/clockdomain44xx.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * OMAP4 clockdomain control - * - * Copyright (C) 2008-2010 Texas Instruments, Inc. - * Copyright (C) 2008-2010 Nokia Corporation - * - * Derived from mach-omap2/clockdomain.c written by Paul Walmsley - * Rajendra Nayak <rnayak@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include "clockdomain.h" -#include "cminst44xx.h" -#include "cm44xx.h" - -static int omap4_clkdm_add_wkup_sleep_dep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - omap4_cminst_set_inst_reg_bits((1 << clkdm2->dep_bit), - clkdm1->prcm_partition, - clkdm1->cm_inst, clkdm1->clkdm_offs + - OMAP4_CM_STATICDEP); - return 0; -} - -static int omap4_clkdm_del_wkup_sleep_dep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - omap4_cminst_clear_inst_reg_bits((1 << clkdm2->dep_bit), - clkdm1->prcm_partition, - clkdm1->cm_inst, clkdm1->clkdm_offs + - OMAP4_CM_STATICDEP); - return 0; -} - -static int omap4_clkdm_read_wkup_sleep_dep(struct clockdomain *clkdm1, - struct clockdomain *clkdm2) -{ - return omap4_cminst_read_inst_reg_bits(clkdm1->prcm_partition, - clkdm1->cm_inst, clkdm1->clkdm_offs + - OMAP4_CM_STATICDEP, - (1 << clkdm2->dep_bit)); -} - -static int omap4_clkdm_clear_all_wkup_sleep_deps(struct clockdomain *clkdm) -{ - struct clkdm_dep *cd; - u32 mask = 0; - - if (!clkdm->prcm_partition) - return 0; - - for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { - if (!cd->clkdm) - continue; /* only happens if data is erroneous */ - - mask |= 1 << cd->clkdm->dep_bit; - atomic_set(&cd->wkdep_usecount, 0); - } - - omap4_cminst_clear_inst_reg_bits(mask, clkdm->prcm_partition, - clkdm->cm_inst, clkdm->clkdm_offs + - OMAP4_CM_STATICDEP); - return 0; -} - -static int omap4_clkdm_sleep(struct clockdomain *clkdm) -{ - omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition, - clkdm->cm_inst, clkdm->clkdm_offs); - return 0; -} - -static int omap4_clkdm_wakeup(struct clockdomain *clkdm) -{ - omap4_cminst_clkdm_force_wakeup(clkdm->prcm_partition, - clkdm->cm_inst, clkdm->clkdm_offs); - return 0; -} - -static void omap4_clkdm_allow_idle(struct clockdomain *clkdm) -{ - omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition, - clkdm->cm_inst, clkdm->clkdm_offs); -} - -static void omap4_clkdm_deny_idle(struct clockdomain *clkdm) -{ - if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) - omap4_clkdm_wakeup(clkdm); - else - omap4_cminst_clkdm_disable_hwsup(clkdm->prcm_partition, - clkdm->cm_inst, - clkdm->clkdm_offs); -} - -static int omap4_clkdm_clk_enable(struct clockdomain *clkdm) -{ - if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) - return omap4_clkdm_wakeup(clkdm); - - return 0; -} - -static int omap4_clkdm_clk_disable(struct clockdomain *clkdm) -{ - bool hwsup = false; - - if (!clkdm->prcm_partition) - return 0; - - /* - * The CLKDM_MISSING_IDLE_REPORTING flag documentation has - * more details on the unpleasant problem this is working - * around - */ - if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING && - !(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) { - omap4_clkdm_allow_idle(clkdm); - return 0; - } - - hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition, - clkdm->cm_inst, clkdm->clkdm_offs); - - if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) - omap4_clkdm_sleep(clkdm); - - return 0; -} - -struct clkdm_ops omap4_clkdm_operations = { - .clkdm_add_wkdep = omap4_clkdm_add_wkup_sleep_dep, - .clkdm_del_wkdep = omap4_clkdm_del_wkup_sleep_dep, - .clkdm_read_wkdep = omap4_clkdm_read_wkup_sleep_dep, - .clkdm_clear_all_wkdeps = omap4_clkdm_clear_all_wkup_sleep_deps, - .clkdm_add_sleepdep = omap4_clkdm_add_wkup_sleep_dep, - .clkdm_del_sleepdep = omap4_clkdm_del_wkup_sleep_dep, - .clkdm_read_sleepdep = omap4_clkdm_read_wkup_sleep_dep, - .clkdm_clear_all_sleepdeps = omap4_clkdm_clear_all_wkup_sleep_deps, - .clkdm_sleep = omap4_clkdm_sleep, - .clkdm_wakeup = omap4_clkdm_wakeup, - .clkdm_allow_idle = omap4_clkdm_allow_idle, - .clkdm_deny_idle = omap4_clkdm_deny_idle, - .clkdm_clk_enable = omap4_clkdm_clk_enable, - .clkdm_clk_disable = omap4_clkdm_clk_disable, -}; diff --git a/arch/arm/mach-omap2/clockdomains2420_data.c b/arch/arm/mach-omap2/clockdomains2420_data.c index 5c74185..7e76bec 100644 --- a/arch/arm/mach-omap2/clockdomains2420_data.c +++ b/arch/arm/mach-omap2/clockdomains2420_data.c @@ -35,6 +35,7 @@ #include <linux/kernel.h> #include <linux/io.h> +#include "soc.h" #include "clockdomain.h" #include "prm2xxx_3xxx.h" #include "cm2xxx_3xxx.h" diff --git a/arch/arm/mach-omap2/clockdomains2430_data.c b/arch/arm/mach-omap2/clockdomains2430_data.c index f096175..b923007 100644 --- a/arch/arm/mach-omap2/clockdomains2430_data.c +++ b/arch/arm/mach-omap2/clockdomains2430_data.c @@ -35,6 +35,7 @@ #include <linux/kernel.h> #include <linux/io.h> +#include "soc.h" #include "clockdomain.h" #include "prm2xxx_3xxx.h" #include "cm2xxx_3xxx.h" diff --git a/arch/arm/mach-omap2/clockdomains3xxx_data.c b/arch/arm/mach-omap2/clockdomains3xxx_data.c index 933a35c..e6b91e5 100644 --- a/arch/arm/mach-omap2/clockdomains3xxx_data.c +++ b/arch/arm/mach-omap2/clockdomains3xxx_data.c @@ -33,6 +33,7 @@ #include <linux/kernel.h> #include <linux/io.h> +#include "soc.h" #include "clockdomain.h" #include "prm2xxx_3xxx.h" #include "cm2xxx_3xxx.h" diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h index f24e3f7..b3cee91 100644 --- a/arch/arm/mach-omap2/cm.h +++ b/arch/arm/mach-omap2/cm.h @@ -33,4 +33,16 @@ */ #define MAX_MODULE_DISABLE_TIME 5000 +# ifndef __ASSEMBLER__ + +/** + * struct cm_ll_data - fn ptrs to per-SoC CM function implementations + */ +struct cm_ll_data {}; + +extern int cm_register(struct cm_ll_data *cld); +extern int cm_unregister(struct cm_ll_data *cld); + +# endif + #endif diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c new file mode 100644 index 0000000..6416501 --- /dev/null +++ b/arch/arm/mach-omap2/cm2xxx.c @@ -0,0 +1,255 @@ +/* + * OMAP2xxx CM module functions + * + * Copyright (C) 2009 Nokia Corporation + * Copyright (C) 2008-2010, 2012 Texas Instruments, Inc. + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include "soc.h" +#include "iomap.h" +#include "common.h" +#include "prm2xxx.h" +#include "cm.h" +#include "cm2xxx.h" +#include "cm-regbits-24xx.h" +#include "clockdomain.h" + +/* CM_AUTOIDLE_PLL.AUTO_* bit values for DPLLs */ +#define DPLL_AUTOIDLE_DISABLE 0x0 +#define OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP 0x3 + +/* CM_AUTOIDLE_PLL.AUTO_* bit values for APLLs (OMAP2xxx only) */ +#define OMAP2XXX_APLL_AUTOIDLE_DISABLE 0x0 +#define OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP 0x3 + +static const u8 omap2xxx_cm_idlest_offs[] = { + CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3, OMAP24XX_CM_IDLEST4 +}; + +/* + * + */ + +static void _write_clktrctrl(u8 c, s16 module, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); + v &= ~mask; + v |= c << __ffs(mask); + omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL); +} + +bool omap2xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); + v &= mask; + v >>= __ffs(mask); + + return (v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0; +} + +void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP24XX_CLKSTCTRL_ENABLE_AUTO, module, mask); +} + +void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP24XX_CLKSTCTRL_DISABLE_AUTO, module, mask); +} + +/* + * DPLL autoidle control + */ + +static void _omap2xxx_set_dpll_autoidle(u8 m) +{ + u32 v; + + v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); + v &= ~OMAP24XX_AUTO_DPLL_MASK; + v |= m << OMAP24XX_AUTO_DPLL_SHIFT; + omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE); +} + +void omap2xxx_cm_set_dpll_disable_autoidle(void) +{ + _omap2xxx_set_dpll_autoidle(OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP); +} + +void omap2xxx_cm_set_dpll_auto_low_power_stop(void) +{ + _omap2xxx_set_dpll_autoidle(DPLL_AUTOIDLE_DISABLE); +} + +/* + * APLL autoidle control + */ + +static void _omap2xxx_set_apll_autoidle(u8 m, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); + v &= ~mask; + v |= m << __ffs(mask); + omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE); +} + +void omap2xxx_cm_set_apll54_disable_autoidle(void) +{ + _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP, + OMAP24XX_AUTO_54M_MASK); +} + +void omap2xxx_cm_set_apll54_auto_low_power_stop(void) +{ + _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE, + OMAP24XX_AUTO_54M_MASK); +} + +void omap2xxx_cm_set_apll96_disable_autoidle(void) +{ + _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP, + OMAP24XX_AUTO_96M_MASK); +} + +void omap2xxx_cm_set_apll96_auto_low_power_stop(void) +{ + _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE, + OMAP24XX_AUTO_96M_MASK); +} + +/* + * + */ + +/** + * omap2xxx_cm_wait_module_ready - wait for a module to leave idle or standby + * @prcm_mod: PRCM module offset + * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3) + * @idlest_shift: shift of the bit in the CM_IDLEST* register to check + * + * Wait for the PRCM to indicate that the module identified by + * (@prcm_mod, @idlest_id, @idlest_shift) is clocked. Return 0 upon + * success or -EBUSY if the module doesn't enable in time. + */ +int omap2xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift) +{ + int ena = 0, i = 0; + u8 cm_idlest_reg; + u32 mask; + + if (!idlest_id || (idlest_id > ARRAY_SIZE(omap2xxx_cm_idlest_offs))) + return -EINVAL; + + cm_idlest_reg = omap2xxx_cm_idlest_offs[idlest_id - 1]; + + mask = 1 << idlest_shift; + ena = mask; + + omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & + mask) == ena), MAX_MODULE_READY_TIME, i); + + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; +} + +/* Clockdomain low-level functions */ + +static void omap2xxx_clkdm_allow_idle(struct clockdomain *clkdm) +{ + if (atomic_read(&clkdm->usecount) > 0) + _clkdm_add_autodeps(clkdm); + + omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); +} + +static void omap2xxx_clkdm_deny_idle(struct clockdomain *clkdm) +{ + omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (atomic_read(&clkdm->usecount) > 0) + _clkdm_del_autodeps(clkdm); +} + +static int omap2xxx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + hwsup = omap2xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + _clkdm_add_autodeps(clkdm); + omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap2xxx_clkdm_wakeup(clkdm); + } + + return 0; +} + +static int omap2xxx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + hwsup = omap2xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + _clkdm_del_autodeps(clkdm); + omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap2xxx_clkdm_sleep(clkdm); + } + + return 0; +} + +struct clkdm_ops omap2_clkdm_operations = { + .clkdm_add_wkdep = omap2_clkdm_add_wkdep, + .clkdm_del_wkdep = omap2_clkdm_del_wkdep, + .clkdm_read_wkdep = omap2_clkdm_read_wkdep, + .clkdm_clear_all_wkdeps = omap2_clkdm_clear_all_wkdeps, + .clkdm_sleep = omap2xxx_clkdm_sleep, + .clkdm_wakeup = omap2xxx_clkdm_wakeup, + .clkdm_allow_idle = omap2xxx_clkdm_allow_idle, + .clkdm_deny_idle = omap2xxx_clkdm_deny_idle, + .clkdm_clk_enable = omap2xxx_clkdm_clk_enable, + .clkdm_clk_disable = omap2xxx_clkdm_clk_disable, +}; + diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h new file mode 100644 index 0000000..bce3c4b --- /dev/null +++ b/arch/arm/mach-omap2/cm2xxx.h @@ -0,0 +1,66 @@ +/* + * OMAP2xxx Clock Management (CM) register definitions + * + * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc. + * Copyright (C) 2007-2010 Nokia Corporation + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * The CM hardware modules on the OMAP2/3 are quite similar to each + * other. The CM modules/instances on OMAP4 are quite different, so + * they are handled in a separate file. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_H +#define __ARCH_ASM_MACH_OMAP2_CM2XXX_H + +#include "prcm-common.h" +#include "cm2xxx_3xxx.h" + +#define OMAP2420_CM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg)) +#define OMAP2430_CM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg)) + +/* + * Module specific CM register offsets from CM_BASE + domain offset + * Use cm_{read,write}_mod_reg() with these registers. + * These register offsets generally appear in more than one PRCM submodule. + */ + +/* OMAP2-specific register offsets */ + +#define OMAP24XX_CM_FCLKEN2 0x0004 +#define OMAP24XX_CM_ICLKEN4 0x001c +#define OMAP24XX_CM_AUTOIDLE4 0x003c +#define OMAP24XX_CM_IDLEST4 0x002c + +/* CM_IDLEST bit field values to indicate deasserted IdleReq */ + +#define OMAP24XX_CM_IDLEST_VAL 0 + + +/* Clock management domain register get/set */ + +#ifndef __ASSEMBLER__ + +extern void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask); +extern void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask); + +extern void omap2xxx_cm_set_dpll_disable_autoidle(void); +extern void omap2xxx_cm_set_dpll_auto_low_power_stop(void); + +extern void omap2xxx_cm_set_apll54_disable_autoidle(void); +extern void omap2xxx_cm_set_apll54_auto_low_power_stop(void); +extern void omap2xxx_cm_set_apll96_disable_autoidle(void); +extern void omap2xxx_cm_set_apll96_auto_low_power_stop(void); + +extern bool omap2xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask); +extern int omap2xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, + u8 idlest_shift); + +#endif + +#endif diff --git a/arch/arm/mach-omap2/cm2xxx_3xxx.h b/arch/arm/mach-omap2/cm2xxx_3xxx.h index 57b2f3c..0e26bb1 100644 --- a/arch/arm/mach-omap2/cm2xxx_3xxx.h +++ b/arch/arm/mach-omap2/cm2xxx_3xxx.h @@ -18,27 +18,6 @@ #include "prcm-common.h" -#define OMAP2420_CM_REGADDR(module, reg) \ - OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg)) -#define OMAP2430_CM_REGADDR(module, reg) \ - OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg)) -#define OMAP34XX_CM_REGADDR(module, reg) \ - OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg)) - - -/* - * OMAP3-specific global CM registers - * Use cm_{read,write}_reg() with these registers. - * These registers appear once per CM module. - */ - -#define OMAP3430_CM_REVISION OMAP34XX_CM_REGADDR(OCP_MOD, 0x0000) -#define OMAP3430_CM_SYSCONFIG OMAP34XX_CM_REGADDR(OCP_MOD, 0x0010) -#define OMAP3430_CM_POLCTRL OMAP34XX_CM_REGADDR(OCP_MOD, 0x009c) - -#define OMAP3_CM_CLKOUT_CTRL_OFFSET 0x0070 -#define OMAP3430_CM_CLKOUT_CTRL OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070) - /* * Module specific CM register offsets from CM_BASE + domain offset * Use cm_{read,write}_mod_reg() with these registers. @@ -57,6 +36,7 @@ #define CM_IDLEST 0x0020 #define CM_IDLEST1 CM_IDLEST #define CM_IDLEST2 0x0024 +#define OMAP2430_CM_IDLEST3 0x0028 #define CM_AUTOIDLE 0x0030 #define CM_AUTOIDLE1 CM_AUTOIDLE #define CM_AUTOIDLE2 0x0034 @@ -66,70 +46,55 @@ #define CM_CLKSEL2 0x0044 #define OMAP2_CM_CLKSTCTRL 0x0048 -/* OMAP2-specific register offsets */ - -#define OMAP24XX_CM_FCLKEN2 0x0004 -#define OMAP24XX_CM_ICLKEN4 0x001c -#define OMAP24XX_CM_AUTOIDLE4 0x003c -#define OMAP24XX_CM_IDLEST4 0x002c - -#define OMAP2430_CM_IDLEST3 0x0028 - -/* OMAP3-specific register offsets */ - -#define OMAP3430_CM_CLKEN_PLL 0x0004 -#define OMAP3430ES2_CM_CLKEN2 0x0004 -#define OMAP3430ES2_CM_FCLKEN3 0x0008 -#define OMAP3430_CM_IDLEST_PLL CM_IDLEST2 -#define OMAP3430_CM_AUTOIDLE_PLL CM_AUTOIDLE2 -#define OMAP3430ES2_CM_AUTOIDLE2_PLL CM_AUTOIDLE2 -#define OMAP3430_CM_CLKSEL1 CM_CLKSEL -#define OMAP3430_CM_CLKSEL1_PLL CM_CLKSEL -#define OMAP3430_CM_CLKSEL2_PLL CM_CLKSEL2 -#define OMAP3430_CM_SLEEPDEP CM_CLKSEL2 -#define OMAP3430_CM_CLKSEL3 OMAP2_CM_CLKSTCTRL -#define OMAP3430_CM_CLKSTST 0x004c -#define OMAP3430ES2_CM_CLKSEL4 0x004c -#define OMAP3430ES2_CM_CLKSEL5 0x0050 -#define OMAP3430_CM_CLKSEL2_EMU 0x0050 -#define OMAP3430_CM_CLKSEL3_EMU 0x0054 - +#ifndef __ASSEMBLER__ -/* CM_IDLEST bit field values to indicate deasserted IdleReq */ +#include <linux/io.h> -#define OMAP24XX_CM_IDLEST_VAL 0 -#define OMAP34XX_CM_IDLEST_VAL 1 +static inline u32 omap2_cm_read_mod_reg(s16 module, u16 idx) +{ + return __raw_readl(cm_base + module + idx); +} +static inline void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx) +{ + __raw_writel(val, cm_base + module + idx); +} -/* Clock management domain register get/set */ +/* Read-modify-write a register in a CM module. Caller must lock */ +static inline u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, + s16 idx) +{ + u32 v; -#ifndef __ASSEMBLER__ + v = omap2_cm_read_mod_reg(module, idx); + v &= ~mask; + v |= bits; + omap2_cm_write_mod_reg(v, module, idx); -extern u32 omap2_cm_read_mod_reg(s16 module, u16 idx); -extern void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx); -extern u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx); + return v; +} -extern int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, - u8 idlest_shift); -extern u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx); -extern u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx); +/* Read a CM register, AND it, and shift the result down to bit 0 */ +static inline u32 omap2_cm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) +{ + u32 v; -extern bool omap2_cm_is_clkdm_in_hwsup(s16 module, u32 mask); -extern void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask); -extern void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask); + v = omap2_cm_read_mod_reg(domain, idx); + v &= mask; + v >>= __ffs(mask); -extern void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask); -extern void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask); -extern void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask); -extern void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask); + return v; +} -extern void omap2xxx_cm_set_dpll_disable_autoidle(void); -extern void omap2xxx_cm_set_dpll_auto_low_power_stop(void); +static inline u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_cm_rmw_mod_reg_bits(bits, bits, module, idx); +} -extern void omap2xxx_cm_set_apll54_disable_autoidle(void); -extern void omap2xxx_cm_set_apll54_auto_low_power_stop(void); -extern void omap2xxx_cm_set_apll96_disable_autoidle(void); -extern void omap2xxx_cm_set_apll96_auto_low_power_stop(void); +static inline u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx); +} #endif @@ -147,10 +112,4 @@ extern void omap2xxx_cm_set_apll96_auto_low_power_stop(void); #define OMAP_ST_GFX_MASK (1 << 0) -/* Function prototypes */ -# ifndef __ASSEMBLER__ -extern void omap3_cm_save_context(void); -extern void omap3_cm_restore_context(void); -# endif - #endif diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c index 13f56ea..058ce3c 100644 --- a/arch/arm/mach-omap2/cm33xx.c +++ b/arch/arm/mach-omap2/cm33xx.c @@ -22,8 +22,7 @@ #include <linux/err.h> #include <linux/io.h> -#include <plat/common.h> - +#include "clockdomain.h" #include "cm.h" #include "cm33xx.h" #include "cm-regbits-34xx.h" @@ -311,3 +310,58 @@ void am33xx_cm_module_disable(u16 inst, s16 cdoffs, u16 clkctrl_offs) v &= ~AM33XX_MODULEMODE_MASK; am33xx_cm_write_reg(v, inst, clkctrl_offs); } + +/* + * Clockdomain low-level functions + */ + +static int am33xx_clkdm_sleep(struct clockdomain *clkdm) +{ + am33xx_cm_clkdm_force_sleep(clkdm->cm_inst, clkdm->clkdm_offs); + return 0; +} + +static int am33xx_clkdm_wakeup(struct clockdomain *clkdm) +{ + am33xx_cm_clkdm_force_wakeup(clkdm->cm_inst, clkdm->clkdm_offs); + return 0; +} + +static void am33xx_clkdm_allow_idle(struct clockdomain *clkdm) +{ + am33xx_cm_clkdm_enable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); +} + +static void am33xx_clkdm_deny_idle(struct clockdomain *clkdm) +{ + am33xx_cm_clkdm_disable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); +} + +static int am33xx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + return am33xx_clkdm_wakeup(clkdm); + + return 0; +} + +static int am33xx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + hwsup = am33xx_cm_is_clkdm_in_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); + + if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) + am33xx_clkdm_sleep(clkdm); + + return 0; +} + +struct clkdm_ops am33xx_clkdm_operations = { + .clkdm_sleep = am33xx_clkdm_sleep, + .clkdm_wakeup = am33xx_clkdm_wakeup, + .clkdm_allow_idle = am33xx_clkdm_allow_idle, + .clkdm_deny_idle = am33xx_clkdm_deny_idle, + .clkdm_clk_enable = am33xx_clkdm_clk_enable, + .clkdm_clk_disable = am33xx_clkdm_clk_disable, +}; diff --git a/arch/arm/mach-omap2/cm2xxx_3xxx.c b/arch/arm/mach-omap2/cm3xxx.c index 7f07ab0..8b03ec2 100644 --- a/arch/arm/mach-omap2/cm2xxx_3xxx.c +++ b/arch/arm/mach-omap2/cm3xxx.c @@ -1,8 +1,10 @@ /* - * OMAP2/3 CM module functions + * OMAP3xxx CM module functions * * Copyright (C) 2009 Nokia Corporation + * Copyright (C) 2008-2010, 2012 Texas Instruments, Inc. * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -12,8 +14,6 @@ #include <linux/kernel.h> #include <linux/types.h> #include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/list.h> #include <linux/errno.h> #include <linux/err.h> #include <linux/io.h> @@ -21,56 +21,16 @@ #include "soc.h" #include "iomap.h" #include "common.h" +#include "prm2xxx_3xxx.h" #include "cm.h" -#include "cm2xxx_3xxx.h" -#include "cm-regbits-24xx.h" +#include "cm3xxx.h" #include "cm-regbits-34xx.h" +#include "clockdomain.h" -/* CM_AUTOIDLE_PLL.AUTO_* bit values for DPLLs */ -#define DPLL_AUTOIDLE_DISABLE 0x0 -#define OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP 0x3 - -/* CM_AUTOIDLE_PLL.AUTO_* bit values for APLLs (OMAP2xxx only) */ -#define OMAP2XXX_APLL_AUTOIDLE_DISABLE 0x0 -#define OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP 0x3 - -static const u8 cm_idlest_offs[] = { - CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3, OMAP24XX_CM_IDLEST4 +static const u8 omap3xxx_cm_idlest_offs[] = { + CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3 }; -u32 omap2_cm_read_mod_reg(s16 module, u16 idx) -{ - return __raw_readl(cm_base + module + idx); -} - -void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx) -{ - __raw_writel(val, cm_base + module + idx); -} - -/* Read-modify-write a register in a CM module. Caller must lock */ -u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx) -{ - u32 v; - - v = omap2_cm_read_mod_reg(module, idx); - v &= ~mask; - v |= bits; - omap2_cm_write_mod_reg(v, module, idx); - - return v; -} - -u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) -{ - return omap2_cm_rmw_mod_reg_bits(bits, bits, module, idx); -} - -u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) -{ - return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx); -} - /* * */ @@ -85,33 +45,15 @@ static void _write_clktrctrl(u8 c, s16 module, u32 mask) omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL); } -bool omap2_cm_is_clkdm_in_hwsup(s16 module, u32 mask) +bool omap3xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask) { u32 v; - bool ret = 0; - - BUG_ON(!cpu_is_omap24xx() && !cpu_is_omap34xx()); v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); v &= mask; v >>= __ffs(mask); - if (cpu_is_omap24xx()) - ret = (v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0; - else - ret = (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0; - - return ret; -} - -void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask) -{ - _write_clktrctrl(OMAP24XX_CLKSTCTRL_ENABLE_AUTO, module, mask); -} - -void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask) -{ - _write_clktrctrl(OMAP24XX_CLKSTCTRL_DISABLE_AUTO, module, mask); + return (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0; } void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask) @@ -135,109 +77,209 @@ void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask) } /* - * DPLL autoidle control + * */ -static void _omap2xxx_set_dpll_autoidle(u8 m) +/** + * omap3xxx_cm_wait_module_ready - wait for a module to leave idle or standby + * @prcm_mod: PRCM module offset + * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3) + * @idlest_shift: shift of the bit in the CM_IDLEST* register to check + * + * Wait for the PRCM to indicate that the module identified by + * (@prcm_mod, @idlest_id, @idlest_shift) is clocked. Return 0 upon + * success or -EBUSY if the module doesn't enable in time. + */ +int omap3xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift) { - u32 v; + int ena = 0, i = 0; + u8 cm_idlest_reg; + u32 mask; + + if (!idlest_id || (idlest_id > ARRAY_SIZE(omap3xxx_cm_idlest_offs))) + return -EINVAL; + + cm_idlest_reg = omap3xxx_cm_idlest_offs[idlest_id - 1]; + + mask = 1 << idlest_shift; + ena = 0; + + omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & + mask) == ena), MAX_MODULE_READY_TIME, i); - v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); - v &= ~OMAP24XX_AUTO_DPLL_MASK; - v |= m << OMAP24XX_AUTO_DPLL_SHIFT; - omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE); + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; } -void omap2xxx_cm_set_dpll_disable_autoidle(void) +/* Clockdomain low-level operations */ + +static int omap3xxx_clkdm_add_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) { - _omap2xxx_set_dpll_autoidle(OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP); + omap2_cm_set_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; } -void omap2xxx_cm_set_dpll_auto_low_power_stop(void) +static int omap3xxx_clkdm_del_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) { - _omap2xxx_set_dpll_autoidle(DPLL_AUTOIDLE_DISABLE); + omap2_cm_clear_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; } -/* - * APLL autoidle control - */ - -static void _omap2xxx_set_apll_autoidle(u8 m, u32 mask) +static int omap3xxx_clkdm_read_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) { - u32 v; - - v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); - v &= ~mask; - v |= m << __ffs(mask); - omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE); + return omap2_cm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP, + (1 << clkdm2->dep_bit)); } -void omap2xxx_cm_set_apll54_disable_autoidle(void) +static int omap3xxx_clkdm_clear_all_sleepdeps(struct clockdomain *clkdm) { - _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP, - OMAP24XX_AUTO_54M_MASK); + struct clkdm_dep *cd; + u32 mask = 0; + + for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) { + if (!cd->clkdm) + continue; /* only happens if data is erroneous */ + + mask |= 1 << cd->clkdm->dep_bit; + atomic_set(&cd->sleepdep_usecount, 0); + } + omap2_cm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; } -void omap2xxx_cm_set_apll54_auto_low_power_stop(void) +static int omap3xxx_clkdm_sleep(struct clockdomain *clkdm) { - _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE, - OMAP24XX_AUTO_54M_MASK); + omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; } -void omap2xxx_cm_set_apll96_disable_autoidle(void) +static int omap3xxx_clkdm_wakeup(struct clockdomain *clkdm) { - _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP, - OMAP24XX_AUTO_96M_MASK); + omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; } -void omap2xxx_cm_set_apll96_auto_low_power_stop(void) +static void omap3xxx_clkdm_allow_idle(struct clockdomain *clkdm) { - _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE, - OMAP24XX_AUTO_96M_MASK); -} + if (atomic_read(&clkdm->usecount) > 0) + _clkdm_add_autodeps(clkdm); -/* - * - */ + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); +} -/** - * omap2_cm_wait_idlest_ready - wait for a module to leave idle or standby - * @prcm_mod: PRCM module offset - * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3) - * @idlest_shift: shift of the bit in the CM_IDLEST* register to check - * - * XXX document - */ -int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift) +static void omap3xxx_clkdm_deny_idle(struct clockdomain *clkdm) { - int ena = 0, i = 0; - u8 cm_idlest_reg; - u32 mask; + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); - if (!idlest_id || (idlest_id > ARRAY_SIZE(cm_idlest_offs))) - return -EINVAL; + if (atomic_read(&clkdm->usecount) > 0) + _clkdm_del_autodeps(clkdm); +} - cm_idlest_reg = cm_idlest_offs[idlest_id - 1]; +static int omap3xxx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + bool hwsup = false; - mask = 1 << idlest_shift; + if (!clkdm->clktrctrl_mask) + return 0; - if (cpu_is_omap24xx()) - ena = mask; - else if (cpu_is_omap34xx()) - ena = 0; - else - BUG(); + /* + * The CLKDM_MISSING_IDLE_REPORTING flag documentation has + * more details on the unpleasant problem this is working + * around + */ + if ((clkdm->flags & CLKDM_MISSING_IDLE_REPORTING) && + (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)) { + omap3xxx_clkdm_wakeup(clkdm); + return 0; + } + + hwsup = omap3xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + _clkdm_add_autodeps(clkdm); + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap3xxx_clkdm_wakeup(clkdm); + } + + return 0; +} - omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & mask) == ena), - MAX_MODULE_READY_TIME, i); +static int omap3xxx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; - return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; + if (!clkdm->clktrctrl_mask) + return 0; + + /* + * The CLKDM_MISSING_IDLE_REPORTING flag documentation has + * more details on the unpleasant problem this is working + * around + */ + if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING && + !(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) { + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; + } + + hwsup = omap3xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + _clkdm_del_autodeps(clkdm); + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap3xxx_clkdm_sleep(clkdm); + } + + return 0; } +struct clkdm_ops omap3_clkdm_operations = { + .clkdm_add_wkdep = omap2_clkdm_add_wkdep, + .clkdm_del_wkdep = omap2_clkdm_del_wkdep, + .clkdm_read_wkdep = omap2_clkdm_read_wkdep, + .clkdm_clear_all_wkdeps = omap2_clkdm_clear_all_wkdeps, + .clkdm_add_sleepdep = omap3xxx_clkdm_add_sleepdep, + .clkdm_del_sleepdep = omap3xxx_clkdm_del_sleepdep, + .clkdm_read_sleepdep = omap3xxx_clkdm_read_sleepdep, + .clkdm_clear_all_sleepdeps = omap3xxx_clkdm_clear_all_sleepdeps, + .clkdm_sleep = omap3xxx_clkdm_sleep, + .clkdm_wakeup = omap3xxx_clkdm_wakeup, + .clkdm_allow_idle = omap3xxx_clkdm_allow_idle, + .clkdm_deny_idle = omap3xxx_clkdm_deny_idle, + .clkdm_clk_enable = omap3xxx_clkdm_clk_enable, + .clkdm_clk_disable = omap3xxx_clkdm_clk_disable, +}; + /* * Context save/restore code - OMAP3 only */ -#ifdef CONFIG_ARCH_OMAP3 struct omap3_cm_regs { u32 iva2_cm_clksel1; u32 iva2_cm_clksel2; @@ -555,4 +597,3 @@ void omap3_cm_restore_context(void) omap2_cm_write_mod_reg(cm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD, OMAP3_CM_CLKOUT_CTRL_OFFSET); } -#endif diff --git a/arch/arm/mach-omap2/cm3xxx.h b/arch/arm/mach-omap2/cm3xxx.h new file mode 100644 index 0000000..4a6ac81 --- /dev/null +++ b/arch/arm/mach-omap2/cm3xxx.h @@ -0,0 +1,86 @@ +/* + * OMAP2/3 Clock Management (CM) register definitions + * + * Copyright (C) 2007-2009 Texas Instruments, Inc. + * Copyright (C) 2007-2010 Nokia Corporation + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * The CM hardware modules on the OMAP2/3 are quite similar to each + * other. The CM modules/instances on OMAP4 are quite different, so + * they are handled in a separate file. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CM3XXX_H +#define __ARCH_ASM_MACH_OMAP2_CM3XXX_H + +#include "prcm-common.h" +#include "cm2xxx_3xxx.h" + +#define OMAP34XX_CM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg)) + + +/* + * OMAP3-specific global CM registers + * Use cm_{read,write}_reg() with these registers. + * These registers appear once per CM module. + */ + +#define OMAP3430_CM_REVISION OMAP34XX_CM_REGADDR(OCP_MOD, 0x0000) +#define OMAP3430_CM_SYSCONFIG OMAP34XX_CM_REGADDR(OCP_MOD, 0x0010) +#define OMAP3430_CM_POLCTRL OMAP34XX_CM_REGADDR(OCP_MOD, 0x009c) + +#define OMAP3_CM_CLKOUT_CTRL_OFFSET 0x0070 +#define OMAP3430_CM_CLKOUT_CTRL OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070) + +/* + * Module specific CM register offsets from CM_BASE + domain offset + * Use cm_{read,write}_mod_reg() with these registers. + * These register offsets generally appear in more than one PRCM submodule. + */ + +/* OMAP3-specific register offsets */ + +#define OMAP3430_CM_CLKEN_PLL 0x0004 +#define OMAP3430ES2_CM_CLKEN2 0x0004 +#define OMAP3430ES2_CM_FCLKEN3 0x0008 +#define OMAP3430_CM_IDLEST_PLL CM_IDLEST2 +#define OMAP3430_CM_AUTOIDLE_PLL CM_AUTOIDLE2 +#define OMAP3430ES2_CM_AUTOIDLE2_PLL CM_AUTOIDLE2 +#define OMAP3430_CM_CLKSEL1 CM_CLKSEL +#define OMAP3430_CM_CLKSEL1_PLL CM_CLKSEL +#define OMAP3430_CM_CLKSEL2_PLL CM_CLKSEL2 +#define OMAP3430_CM_SLEEPDEP CM_CLKSEL2 +#define OMAP3430_CM_CLKSEL3 OMAP2_CM_CLKSTCTRL +#define OMAP3430_CM_CLKSTST 0x004c +#define OMAP3430ES2_CM_CLKSEL4 0x004c +#define OMAP3430ES2_CM_CLKSEL5 0x0050 +#define OMAP3430_CM_CLKSEL2_EMU 0x0050 +#define OMAP3430_CM_CLKSEL3_EMU 0x0054 + + +/* CM_IDLEST bit field values to indicate deasserted IdleReq */ + +#define OMAP34XX_CM_IDLEST_VAL 1 + + +#ifndef __ASSEMBLER__ + +extern void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask); +extern void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask); +extern void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask); +extern void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask); + +extern bool omap3xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask); +extern int omap3xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, + u8 idlest_shift); + +extern void omap3_cm_save_context(void); +extern void omap3_cm_restore_context(void); + +#endif + +#endif diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c new file mode 100644 index 0000000..3246cef --- /dev/null +++ b/arch/arm/mach-omap2/cm_common.c @@ -0,0 +1,71 @@ +/* + * OMAP2+ common Clock Management (CM) IP block functions + * + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley <paul@pwsan.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * XXX This code should eventually be moved to a CM driver. + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include "cm2xxx.h" +#include "cm3xxx.h" +#include "cm44xx.h" + +/* + * cm_ll_data: function pointers to SoC-specific implementations of + * common CM functions + */ +static struct cm_ll_data null_cm_ll_data; +static struct cm_ll_data *cm_ll_data = &null_cm_ll_data; + +/** + * cm_register - register per-SoC low-level data with the CM + * @cld: low-level per-SoC OMAP CM data & function pointers to register + * + * Register per-SoC low-level OMAP CM data and function pointers with + * the OMAP CM common interface. The caller must keep the data + * pointed to by @cld valid until it calls cm_unregister() and + * it returns successfully. Returns 0 upon success, -EINVAL if @cld + * is NULL, or -EEXIST if cm_register() has already been called + * without an intervening cm_unregister(). + */ +int cm_register(struct cm_ll_data *cld) +{ + if (!cld) + return -EINVAL; + + if (cm_ll_data != &null_cm_ll_data) + return -EEXIST; + + cm_ll_data = cld; + + return 0; +} + +/** + * cm_unregister - unregister per-SoC low-level data & function pointers + * @cld: low-level per-SoC OMAP CM data & function pointers to unregister + * + * Unregister per-SoC low-level OMAP CM data and function pointers + * that were previously registered with cm_register(). The + * caller may not destroy any of the data pointed to by @cld until + * this function returns successfully. Returns 0 upon success, or + * -EINVAL if @cld is NULL or if @cld does not match the struct + * cm_ll_data * previously registered by cm_register(). + */ +int cm_unregister(struct cm_ll_data *cld) +{ + if (!cld || cm_ll_data != cld) + return -EINVAL; + + cm_ll_data = &null_cm_ll_data; + + return 0; +} diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c index 1894015..7f9a464 100644 --- a/arch/arm/mach-omap2/cminst44xx.c +++ b/arch/arm/mach-omap2/cminst44xx.c @@ -2,8 +2,9 @@ * OMAP4 CM instance functions * * Copyright (C) 2009 Nokia Corporation - * Copyright (C) 2011 Texas Instruments, Inc. + * Copyright (C) 2008-2011 Texas Instruments, Inc. * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -22,6 +23,7 @@ #include "iomap.h" #include "common.h" +#include "clockdomain.h" #include "cm.h" #include "cm1_44xx.h" #include "cm2_44xx.h" @@ -343,3 +345,141 @@ void omap4_cminst_module_disable(u8 part, u16 inst, s16 cdoffs, v &= ~OMAP4430_MODULEMODE_MASK; omap4_cminst_write_inst_reg(v, part, inst, clkctrl_offs); } + +/* + * Clockdomain low-level functions + */ + +static int omap4_clkdm_add_wkup_sleep_dep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap4_cminst_set_inst_reg_bits((1 << clkdm2->dep_bit), + clkdm1->prcm_partition, + clkdm1->cm_inst, clkdm1->clkdm_offs + + OMAP4_CM_STATICDEP); + return 0; +} + +static int omap4_clkdm_del_wkup_sleep_dep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap4_cminst_clear_inst_reg_bits((1 << clkdm2->dep_bit), + clkdm1->prcm_partition, + clkdm1->cm_inst, clkdm1->clkdm_offs + + OMAP4_CM_STATICDEP); + return 0; +} + +static int omap4_clkdm_read_wkup_sleep_dep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + return omap4_cminst_read_inst_reg_bits(clkdm1->prcm_partition, + clkdm1->cm_inst, + clkdm1->clkdm_offs + + OMAP4_CM_STATICDEP, + (1 << clkdm2->dep_bit)); +} + +static int omap4_clkdm_clear_all_wkup_sleep_deps(struct clockdomain *clkdm) +{ + struct clkdm_dep *cd; + u32 mask = 0; + + if (!clkdm->prcm_partition) + return 0; + + for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { + if (!cd->clkdm) + continue; /* only happens if data is erroneous */ + + mask |= 1 << cd->clkdm->dep_bit; + atomic_set(&cd->wkdep_usecount, 0); + } + + omap4_cminst_clear_inst_reg_bits(mask, clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs + + OMAP4_CM_STATICDEP); + return 0; +} + +static int omap4_clkdm_sleep(struct clockdomain *clkdm) +{ + omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs); + return 0; +} + +static int omap4_clkdm_wakeup(struct clockdomain *clkdm) +{ + omap4_cminst_clkdm_force_wakeup(clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs); + return 0; +} + +static void omap4_clkdm_allow_idle(struct clockdomain *clkdm) +{ + omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs); +} + +static void omap4_clkdm_deny_idle(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap4_clkdm_wakeup(clkdm); + else + omap4_cminst_clkdm_disable_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, + clkdm->clkdm_offs); +} + +static int omap4_clkdm_clk_enable(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + return omap4_clkdm_wakeup(clkdm); + + return 0; +} + +static int omap4_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->prcm_partition) + return 0; + + /* + * The CLKDM_MISSING_IDLE_REPORTING flag documentation has + * more details on the unpleasant problem this is working + * around + */ + if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING && + !(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) { + omap4_clkdm_allow_idle(clkdm); + return 0; + } + + hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs); + + if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) + omap4_clkdm_sleep(clkdm); + + return 0; +} + +struct clkdm_ops omap4_clkdm_operations = { + .clkdm_add_wkdep = omap4_clkdm_add_wkup_sleep_dep, + .clkdm_del_wkdep = omap4_clkdm_del_wkup_sleep_dep, + .clkdm_read_wkdep = omap4_clkdm_read_wkup_sleep_dep, + .clkdm_clear_all_wkdeps = omap4_clkdm_clear_all_wkup_sleep_deps, + .clkdm_add_sleepdep = omap4_clkdm_add_wkup_sleep_dep, + .clkdm_del_sleepdep = omap4_clkdm_del_wkup_sleep_dep, + .clkdm_read_sleepdep = omap4_clkdm_read_wkup_sleep_dep, + .clkdm_clear_all_sleepdeps = omap4_clkdm_clear_all_wkup_sleep_deps, + .clkdm_sleep = omap4_clkdm_sleep, + .clkdm_wakeup = omap4_clkdm_wakeup, + .clkdm_allow_idle = omap4_clkdm_allow_idle, + .clkdm_deny_idle = omap4_clkdm_deny_idle, + .clkdm_clk_enable = omap4_clkdm_clk_enable, + .clkdm_clk_disable = omap4_clkdm_clk_disable, +}; diff --git a/arch/arm/mach-omap2/common-board-devices.c b/arch/arm/mach-omap2/common-board-devices.c index 84551f2..d246efd 100644 --- a/arch/arm/mach-omap2/common-board-devices.c +++ b/arch/arm/mach-omap2/common-board-devices.c @@ -25,7 +25,6 @@ #include <linux/spi/ads7846.h> #include <linux/platform_data/spi-omap2-mcspi.h> -#include <linux/platform_data/mtd-nand-omap2.h> #include "common.h" #include "common-board-devices.h" @@ -102,48 +101,3 @@ void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce, { } #endif - -#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE) -static struct omap_nand_platform_data nand_data; - -void __init omap_nand_flash_init(int options, struct mtd_partition *parts, - int nr_parts) -{ - u8 cs = 0; - u8 nandcs = GPMC_CS_NUM + 1; - - /* find out the chip-select on which NAND exists */ - while (cs < GPMC_CS_NUM) { - u32 ret = 0; - ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); - - if ((ret & 0xC00) == 0x800) { - printk(KERN_INFO "Found NAND on CS%d\n", cs); - if (nandcs > GPMC_CS_NUM) - nandcs = cs; - } - cs++; - } - - if (nandcs > GPMC_CS_NUM) { - pr_info("NAND: Unable to find configuration in GPMC\n"); - return; - } - - if (nandcs < GPMC_CS_NUM) { - nand_data.cs = nandcs; - nand_data.parts = parts; - nand_data.nr_parts = nr_parts; - nand_data.devsize = options; - - printk(KERN_INFO "Registering NAND on CS%d\n", nandcs); - if (gpmc_nand_init(&nand_data) < 0) - printk(KERN_ERR "Unable to register NAND device\n"); - } -} -#else -void __init omap_nand_flash_init(int options, struct mtd_partition *parts, - int nr_parts) -{ -} -#endif diff --git a/arch/arm/mach-omap2/common-board-devices.h b/arch/arm/mach-omap2/common-board-devices.h index a0b4a428..72bb41b 100644 --- a/arch/arm/mach-omap2/common-board-devices.h +++ b/arch/arm/mach-omap2/common-board-devices.h @@ -10,6 +10,5 @@ struct ads7846_platform_data; void omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce, struct ads7846_platform_data *board_pdata); -void omap_nand_flash_init(int opts, struct mtd_partition *parts, int n_parts); #endif /* __OMAP_COMMON_BOARD_DEVICES__ */ diff --git a/arch/arm/mach-omap2/common.c b/arch/arm/mach-omap2/common.c index 17950c6..34fb5b9 100644 --- a/arch/arm/mach-omap2/common.c +++ b/arch/arm/mach-omap2/common.c @@ -16,14 +16,17 @@ #include <linux/init.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/platform_data/dsp-omap.h> -#include <plat/clock.h> +#include <plat/vram.h> #include "soc.h" #include "iomap.h" #include "common.h" +#include "clock.h" #include "sdrc.h" #include "control.h" +#include "omap-secure.h" /* Global address base setup code */ @@ -200,3 +203,20 @@ void __init omap5_map_io(void) omap5_map_common_io(); } #endif + +/* + * Stub function for OMAP2 so that common files + * continue to build when custom builds are used + */ +int __weak omap_secure_ram_reserve_memblock(void) +{ + return 0; +} + +void __init omap_reserve(void) +{ + omap_vram_reserve_sdram_memblock(); + omap_dsp_reserve_sdram_memblock(); + omap_secure_ram_reserve_memblock(); + omap_barrier_reserve_memblock(); +} diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index d29dbaa..fd97f31 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -28,13 +28,16 @@ #include <linux/irq.h> #include <linux/delay.h> +#include <linux/i2c.h> #include <linux/i2c/twl.h> +#include <linux/i2c-omap.h> #include <asm/proc-fns.h> -#include <plat/cpu.h> -#include <plat/serial.h> -#include <plat/common.h> +#include "i2c.h" +#include "serial.h" + +#include "usb.h" #define OMAP_INTC_START NR_IRQS @@ -342,6 +345,10 @@ extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, struct omap_sdrc_params *sdrc_cs1); struct omap2_hsmmc_info; extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers); +extern void omap_reserve(void); + +struct omap_hwmod; +extern int omap_dss_reset(struct omap_hwmod *); #endif /* __ASSEMBLER__ */ #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */ diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index d1ff839..06375ad 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -1,7 +1,7 @@ /* * OMAP2/3 System Control Module register access * - * Copyright (C) 2007 Texas Instruments, Inc. + * Copyright (C) 2007, 2012 Texas Instruments, Inc. * Copyright (C) 2007 Nokia Corporation * * Written by Paul Walmsley @@ -15,15 +15,13 @@ #include <linux/kernel.h> #include <linux/io.h> -#include <plat/sdrc.h> - #include "soc.h" #include "iomap.h" #include "common.h" #include "cm-regbits-34xx.h" #include "prm-regbits-34xx.h" -#include "prm2xxx_3xxx.h" -#include "cm2xxx_3xxx.h" +#include "prm3xxx.h" +#include "cm3xxx.h" #include "sdrc.h" #include "pm.h" #include "control.h" diff --git a/arch/arm/mach-omap2/debug-devices.h b/arch/arm/mach-omap2/debug-devices.h deleted file mode 100644 index a4edbd2..0000000 --- a/arch/arm/mach-omap2/debug-devices.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef _OMAP_DEBUG_DEVICES_H -#define _OMAP_DEBUG_DEVICES_H - -#include <linux/types.h> - -/* for TI reference platforms sharing the same debug card */ -extern int debug_card_init(u32 addr, unsigned gpio); - -#endif diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index c72b5a7..738ae0d 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -24,10 +24,11 @@ #include <asm/mach-types.h> #include <asm/mach/map.h> +#include <plat-omap/dma-omap.h> + #include "iomap.h" -#include <plat/dma.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> +#include "omap_hwmod.h" +#include "omap_device.h" #include "omap4-keypad.h" #include "soc.h" @@ -35,6 +36,7 @@ #include "mux.h" #include "control.h" #include "devices.h" +#include "dma.h" #define L3_MODULES_MAX_LEN 12 #define L3_MODULES 3 @@ -127,7 +129,7 @@ static struct platform_device omap2cam_device = { #if defined(CONFIG_IOMMU_API) -#include <plat/iommu.h> +#include <linux/platform_data/iommu-omap.h> static struct resource omap3isp_resources[] = { { diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 1011995..89c5712 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -25,11 +25,12 @@ #include <linux/delay.h> #include <video/omapdss.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> -#include <plat/omap-pm.h> +#include "omap_hwmod.h" +#include "omap_device.h" +#include "omap-pm.h" #include "common.h" +#include "soc.h" #include "iomap.h" #include "mux.h" #include "control.h" @@ -284,6 +285,35 @@ err: return ERR_PTR(r); } +static enum omapdss_version __init omap_display_get_version(void) +{ + if (cpu_is_omap24xx()) + return OMAPDSS_VER_OMAP24xx; + else if (cpu_is_omap3630()) + return OMAPDSS_VER_OMAP3630; + else if (cpu_is_omap34xx()) { + if (soc_is_am35xx()) { + return OMAPDSS_VER_AM35xx; + } else { + if (omap_rev() < OMAP3430_REV_ES3_0) + return OMAPDSS_VER_OMAP34xx_ES1; + else + return OMAPDSS_VER_OMAP34xx_ES3; + } + } else if (omap_rev() == OMAP4430_REV_ES1_0) + return OMAPDSS_VER_OMAP4430_ES1; + else if (omap_rev() == OMAP4430_REV_ES2_0 || + omap_rev() == OMAP4430_REV_ES2_1 || + omap_rev() == OMAP4430_REV_ES2_2) + return OMAPDSS_VER_OMAP4430_ES2; + else if (cpu_is_omap44xx()) + return OMAPDSS_VER_OMAP4; + else if (soc_is_omap54xx()) + return OMAPDSS_VER_OMAP5; + else + return OMAPDSS_VER_UNKNOWN; +} + int __init omap_display_init(struct omap_dss_board_info *board_data) { int r = 0; @@ -291,9 +321,18 @@ int __init omap_display_init(struct omap_dss_board_info *board_data) int i, oh_count; const struct omap_dss_hwmod_data *curr_dss_hwmod; struct platform_device *dss_pdev; + enum omapdss_version ver; /* create omapdss device */ + ver = omap_display_get_version(); + + if (ver == OMAPDSS_VER_UNKNOWN) { + pr_err("DSS not supported on this SoC\n"); + return -ENODEV; + } + + board_data->version = ver; board_data->dsi_enable_pads = omap_dsi_enable_pads; board_data->dsi_disable_pads = omap_dsi_disable_pads; board_data->get_context_loss_count = omap_pm_get_dev_context_loss_count; diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c index ff75abe..e5aba58 100644 --- a/arch/arm/mach-omap2/dma.c +++ b/arch/arm/mach-omap2/dma.c @@ -28,9 +28,11 @@ #include <linux/init.h> #include <linux/device.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> -#include <plat/dma.h> +#include <plat-omap/dma-omap.h> + +#include "soc.h" +#include "omap_hwmod.h" +#include "omap_device.h" #define OMAP2_DMA_STRIDE 0x60 @@ -274,6 +276,9 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused) return -ENOMEM; } + if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP)) + d->dev_caps |= HS_CHANNELS_RESERVED; + /* Check the capabilities register for descriptor loading feature */ if (dma_read(CAPS_0, 0) & DMA_HAS_DESCRIPTOR_CAPS) dma_common_ch_end = CCDN; diff --git a/arch/arm/mach-omap2/dma.h b/arch/arm/mach-omap2/dma.h new file mode 100644 index 0000000..eba80db --- /dev/null +++ b/arch/arm/mach-omap2/dma.h @@ -0,0 +1,131 @@ +/* + * OMAP2PLUS DMA channel definitions + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __OMAP2PLUS_DMA_CHANNEL_H +#define __OMAP2PLUS_DMA_CHANNEL_H + + +/* DMA channels for 24xx */ +#define OMAP24XX_DMA_NO_DEVICE 0 +#define OMAP24XX_DMA_XTI_DMA 1 /* S_DMA_0 */ +#define OMAP24XX_DMA_EXT_DMAREQ0 2 /* S_DMA_1 */ +#define OMAP24XX_DMA_EXT_DMAREQ1 3 /* S_DMA_2 */ +#define OMAP24XX_DMA_GPMC 4 /* S_DMA_3 */ +#define OMAP24XX_DMA_GFX 5 /* S_DMA_4 */ +#define OMAP24XX_DMA_DSS 6 /* S_DMA_5 */ +#define OMAP242X_DMA_VLYNQ_TX 7 /* S_DMA_6 */ +#define OMAP24XX_DMA_EXT_DMAREQ2 7 /* S_DMA_6 */ +#define OMAP24XX_DMA_CWT 8 /* S_DMA_7 */ +#define OMAP24XX_DMA_AES_TX 9 /* S_DMA_8 */ +#define OMAP24XX_DMA_AES_RX 10 /* S_DMA_9 */ +#define OMAP24XX_DMA_DES_TX 11 /* S_DMA_10 */ +#define OMAP24XX_DMA_DES_RX 12 /* S_DMA_11 */ +#define OMAP24XX_DMA_SHA1MD5_RX 13 /* S_DMA_12 */ +#define OMAP34XX_DMA_SHA2MD5_RX 13 /* S_DMA_12 */ +#define OMAP242X_DMA_EXT_DMAREQ2 14 /* S_DMA_13 */ +#define OMAP242X_DMA_EXT_DMAREQ3 15 /* S_DMA_14 */ +#define OMAP242X_DMA_EXT_DMAREQ4 16 /* S_DMA_15 */ +#define OMAP242X_DMA_EAC_AC_RD 17 /* S_DMA_16 */ +#define OMAP242X_DMA_EAC_AC_WR 18 /* S_DMA_17 */ +#define OMAP242X_DMA_EAC_MD_UL_RD 19 /* S_DMA_18 */ +#define OMAP242X_DMA_EAC_MD_UL_WR 20 /* S_DMA_19 */ +#define OMAP242X_DMA_EAC_MD_DL_RD 21 /* S_DMA_20 */ +#define OMAP242X_DMA_EAC_MD_DL_WR 22 /* S_DMA_21 */ +#define OMAP242X_DMA_EAC_BT_UL_RD 23 /* S_DMA_22 */ +#define OMAP242X_DMA_EAC_BT_UL_WR 24 /* S_DMA_23 */ +#define OMAP242X_DMA_EAC_BT_DL_RD 25 /* S_DMA_24 */ +#define OMAP242X_DMA_EAC_BT_DL_WR 26 /* S_DMA_25 */ +#define OMAP243X_DMA_EXT_DMAREQ3 14 /* S_DMA_13 */ +#define OMAP24XX_DMA_SPI3_TX0 15 /* S_DMA_14 */ +#define OMAP24XX_DMA_SPI3_RX0 16 /* S_DMA_15 */ +#define OMAP24XX_DMA_MCBSP3_TX 17 /* S_DMA_16 */ +#define OMAP24XX_DMA_MCBSP3_RX 18 /* S_DMA_17 */ +#define OMAP24XX_DMA_MCBSP4_TX 19 /* S_DMA_18 */ +#define OMAP24XX_DMA_MCBSP4_RX 20 /* S_DMA_19 */ +#define OMAP24XX_DMA_MCBSP5_TX 21 /* S_DMA_20 */ +#define OMAP24XX_DMA_MCBSP5_RX 22 /* S_DMA_21 */ +#define OMAP24XX_DMA_SPI3_TX1 23 /* S_DMA_22 */ +#define OMAP24XX_DMA_SPI3_RX1 24 /* S_DMA_23 */ +#define OMAP243X_DMA_EXT_DMAREQ4 25 /* S_DMA_24 */ +#define OMAP243X_DMA_EXT_DMAREQ5 26 /* S_DMA_25 */ +#define OMAP34XX_DMA_I2C3_TX 25 /* S_DMA_24 */ +#define OMAP34XX_DMA_I2C3_RX 26 /* S_DMA_25 */ +#define OMAP24XX_DMA_I2C1_TX 27 /* S_DMA_26 */ +#define OMAP24XX_DMA_I2C1_RX 28 /* S_DMA_27 */ +#define OMAP24XX_DMA_I2C2_TX 29 /* S_DMA_28 */ +#define OMAP24XX_DMA_I2C2_RX 30 /* S_DMA_29 */ +#define OMAP24XX_DMA_MCBSP1_TX 31 /* S_DMA_30 */ +#define OMAP24XX_DMA_MCBSP1_RX 32 /* S_DMA_31 */ +#define OMAP24XX_DMA_MCBSP2_TX 33 /* S_DMA_32 */ +#define OMAP24XX_DMA_MCBSP2_RX 34 /* S_DMA_33 */ +#define OMAP24XX_DMA_SPI1_TX0 35 /* S_DMA_34 */ +#define OMAP24XX_DMA_SPI1_RX0 36 /* S_DMA_35 */ +#define OMAP24XX_DMA_SPI1_TX1 37 /* S_DMA_36 */ +#define OMAP24XX_DMA_SPI1_RX1 38 /* S_DMA_37 */ +#define OMAP24XX_DMA_SPI1_TX2 39 /* S_DMA_38 */ +#define OMAP24XX_DMA_SPI1_RX2 40 /* S_DMA_39 */ +#define OMAP24XX_DMA_SPI1_TX3 41 /* S_DMA_40 */ +#define OMAP24XX_DMA_SPI1_RX3 42 /* S_DMA_41 */ +#define OMAP24XX_DMA_SPI2_TX0 43 /* S_DMA_42 */ +#define OMAP24XX_DMA_SPI2_RX0 44 /* S_DMA_43 */ +#define OMAP24XX_DMA_SPI2_TX1 45 /* S_DMA_44 */ +#define OMAP24XX_DMA_SPI2_RX1 46 /* S_DMA_45 */ +#define OMAP24XX_DMA_MMC2_TX 47 /* S_DMA_46 */ +#define OMAP24XX_DMA_MMC2_RX 48 /* S_DMA_47 */ +#define OMAP24XX_DMA_UART1_TX 49 /* S_DMA_48 */ +#define OMAP24XX_DMA_UART1_RX 50 /* S_DMA_49 */ +#define OMAP24XX_DMA_UART2_TX 51 /* S_DMA_50 */ +#define OMAP24XX_DMA_UART2_RX 52 /* S_DMA_51 */ +#define OMAP24XX_DMA_UART3_TX 53 /* S_DMA_52 */ +#define OMAP24XX_DMA_UART3_RX 54 /* S_DMA_53 */ +#define OMAP24XX_DMA_USB_W2FC_TX0 55 /* S_DMA_54 */ +#define OMAP24XX_DMA_USB_W2FC_RX0 56 /* S_DMA_55 */ +#define OMAP24XX_DMA_USB_W2FC_TX1 57 /* S_DMA_56 */ +#define OMAP24XX_DMA_USB_W2FC_RX1 58 /* S_DMA_57 */ +#define OMAP24XX_DMA_USB_W2FC_TX2 59 /* S_DMA_58 */ +#define OMAP24XX_DMA_USB_W2FC_RX2 60 /* S_DMA_59 */ +#define OMAP24XX_DMA_MMC1_TX 61 /* S_DMA_60 */ +#define OMAP24XX_DMA_MMC1_RX 62 /* S_DMA_61 */ +#define OMAP24XX_DMA_MS 63 /* S_DMA_62 */ +#define OMAP242X_DMA_EXT_DMAREQ5 64 /* S_DMA_63 */ +#define OMAP243X_DMA_EXT_DMAREQ6 64 /* S_DMA_63 */ +#define OMAP34XX_DMA_EXT_DMAREQ3 64 /* S_DMA_63 */ +#define OMAP34XX_DMA_AES2_TX 65 /* S_DMA_64 */ +#define OMAP34XX_DMA_AES2_RX 66 /* S_DMA_65 */ +#define OMAP34XX_DMA_DES2_TX 67 /* S_DMA_66 */ +#define OMAP34XX_DMA_DES2_RX 68 /* S_DMA_67 */ +#define OMAP34XX_DMA_SHA1MD5_RX 69 /* S_DMA_68 */ +#define OMAP34XX_DMA_SPI4_TX0 70 /* S_DMA_69 */ +#define OMAP34XX_DMA_SPI4_RX0 71 /* S_DMA_70 */ +#define OMAP34XX_DSS_DMA0 72 /* S_DMA_71 */ +#define OMAP34XX_DSS_DMA1 73 /* S_DMA_72 */ +#define OMAP34XX_DSS_DMA2 74 /* S_DMA_73 */ +#define OMAP34XX_DSS_DMA3 75 /* S_DMA_74 */ +#define OMAP34XX_DMA_MMC3_TX 77 /* S_DMA_76 */ +#define OMAP34XX_DMA_MMC3_RX 78 /* S_DMA_77 */ +#define OMAP34XX_DMA_USIM_TX 79 /* S_DMA_78 */ +#define OMAP34XX_DMA_USIM_RX 80 /* S_DMA_79 */ + +#define OMAP36XX_DMA_UART4_TX 81 /* S_DMA_80 */ +#define OMAP36XX_DMA_UART4_RX 82 /* S_DMA_81 */ + +/* Only for AM35xx */ +#define AM35XX_DMA_UART4_TX 54 +#define AM35XX_DMA_UART4_RX 55 + +#endif /* __OMAP2PLUS_DMA_CHANNEL_H */ diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c index 814e180..eacf51f 100644 --- a/arch/arm/mach-omap2/dpll3xxx.c +++ b/arch/arm/mach-omap2/dpll3xxx.c @@ -28,8 +28,6 @@ #include <linux/bitops.h> #include <linux/clkdev.h> -#include <plat/clock.h> - #include "soc.h" #include "clock.h" #include "cm2xxx_3xxx.h" diff --git a/arch/arm/mach-omap2/dpll44xx.c b/arch/arm/mach-omap2/dpll44xx.c index 09d0ccc..5854da1 100644 --- a/arch/arm/mach-omap2/dpll44xx.c +++ b/arch/arm/mach-omap2/dpll44xx.c @@ -15,8 +15,6 @@ #include <linux/io.h> #include <linux/bitops.h> -#include <plat/clock.h> - #include "soc.h" #include "clock.h" #include "clock44xx.h" diff --git a/arch/arm/mach-omap2/drm.c b/arch/arm/mach-omap2/drm.c index 49a7ffb..fce5aa3 100644 --- a/arch/arm/mach-omap2/drm.c +++ b/arch/arm/mach-omap2/drm.c @@ -25,8 +25,8 @@ #include <linux/dma-mapping.h> #include <linux/platform_data/omap_drm.h> -#include <plat/omap_device.h> -#include <plat/omap_hwmod.h> +#include "omap_device.h" +#include "omap_hwmod.h" #include <plat/cpu.h> #if defined(CONFIG_DRM_OMAP) || (CONFIG_DRM_OMAP_MODULE) diff --git a/arch/arm/mach-omap2/dsp.c b/arch/arm/mach-omap2/dsp.c index 9838810..b155500 100644 --- a/arch/arm/mach-omap2/dsp.c +++ b/arch/arm/mach-omap2/dsp.c @@ -27,7 +27,7 @@ #include "cm2xxx_3xxx.h" #include "prm2xxx_3xxx.h" #ifdef CONFIG_BRIDGE_DVFS -#include <plat/omap-pm.h> +#include "omap-pm.h" #endif #include <linux/platform_data/dsp-omap.h> diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c index d1058f1..399acab 100644 --- a/arch/arm/mach-omap2/gpio.c +++ b/arch/arm/mach-omap2/gpio.c @@ -23,9 +23,9 @@ #include <linux/of.h> #include <linux/platform_data/gpio-omap.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> -#include <plat/omap-pm.h> +#include "omap_hwmod.h" +#include "omap_device.h" +#include "omap-pm.h" #include "powerdomain.h" diff --git a/arch/arm/mach-omap2/gpmc-nand.c b/arch/arm/mach-omap2/gpmc-nand.c index 4acf497..8607735 100644 --- a/arch/arm/mach-omap2/gpmc-nand.c +++ b/arch/arm/mach-omap2/gpmc-nand.c @@ -17,9 +17,12 @@ #include <asm/mach/flash.h> -#include <plat/gpmc.h> - +#include "gpmc.h" #include "soc.h" +#include "gpmc-nand.h" + +/* minimum size for IO mapping */ +#define NAND_IO_SIZE 4 static struct resource gpmc_nand_resource[] = { { @@ -40,41 +43,36 @@ static struct platform_device gpmc_nand_device = { .resource = gpmc_nand_resource, }; -static int omap2_nand_gpmc_retime(struct omap_nand_platform_data *gpmc_nand_data) +static int omap2_nand_gpmc_retime( + struct omap_nand_platform_data *gpmc_nand_data, + struct gpmc_timings *gpmc_t) { struct gpmc_timings t; int err; - if (!gpmc_nand_data->gpmc_t) - return 0; - memset(&t, 0, sizeof(t)); - t.sync_clk = gpmc_nand_data->gpmc_t->sync_clk; - t.cs_on = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->cs_on); - t.adv_on = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->adv_on); + t.sync_clk = gpmc_t->sync_clk; + t.cs_on = gpmc_round_ns_to_ticks(gpmc_t->cs_on); + t.adv_on = gpmc_round_ns_to_ticks(gpmc_t->adv_on); /* Read */ - t.adv_rd_off = gpmc_round_ns_to_ticks( - gpmc_nand_data->gpmc_t->adv_rd_off); + t.adv_rd_off = gpmc_round_ns_to_ticks(gpmc_t->adv_rd_off); t.oe_on = t.adv_on; - t.access = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->access); - t.oe_off = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->oe_off); - t.cs_rd_off = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->cs_rd_off); - t.rd_cycle = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->rd_cycle); + t.access = gpmc_round_ns_to_ticks(gpmc_t->access); + t.oe_off = gpmc_round_ns_to_ticks(gpmc_t->oe_off); + t.cs_rd_off = gpmc_round_ns_to_ticks(gpmc_t->cs_rd_off); + t.rd_cycle = gpmc_round_ns_to_ticks(gpmc_t->rd_cycle); /* Write */ - t.adv_wr_off = gpmc_round_ns_to_ticks( - gpmc_nand_data->gpmc_t->adv_wr_off); + t.adv_wr_off = gpmc_round_ns_to_ticks(gpmc_t->adv_wr_off); t.we_on = t.oe_on; if (cpu_is_omap34xx()) { - t.wr_data_mux_bus = gpmc_round_ns_to_ticks( - gpmc_nand_data->gpmc_t->wr_data_mux_bus); - t.wr_access = gpmc_round_ns_to_ticks( - gpmc_nand_data->gpmc_t->wr_access); + t.wr_data_mux_bus = gpmc_round_ns_to_ticks(gpmc_t->wr_data_mux_bus); + t.wr_access = gpmc_round_ns_to_ticks(gpmc_t->wr_access); } - t.we_off = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->we_off); - t.cs_wr_off = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->cs_wr_off); - t.wr_cycle = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->wr_cycle); + t.we_off = gpmc_round_ns_to_ticks(gpmc_t->we_off); + t.cs_wr_off = gpmc_round_ns_to_ticks(gpmc_t->cs_wr_off); + t.wr_cycle = gpmc_round_ns_to_ticks(gpmc_t->wr_cycle); /* Configure GPMC */ if (gpmc_nand_data->devsize == NAND_BUSWIDTH_16) @@ -91,7 +89,29 @@ static int omap2_nand_gpmc_retime(struct omap_nand_platform_data *gpmc_nand_data return 0; } -int __init gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data) +static bool __init gpmc_hwecc_bch_capable(enum omap_ecc ecc_opt) +{ + /* support only OMAP3 class */ + if (!cpu_is_omap34xx()) { + pr_err("BCH ecc is not supported on this CPU\n"); + return 0; + } + + /* + * For now, assume 4-bit mode is only supported on OMAP3630 ES1.x, x>=1. + * Other chips may be added if confirmed to work. + */ + if ((ecc_opt == OMAP_ECC_BCH4_CODE_HW) && + (!cpu_is_omap3630() || (GET_OMAP_REVISION() == 0))) { + pr_err("BCH 4-bit mode is not supported on this CPU\n"); + return 0; + } + + return 1; +} + +int __init gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data, + struct gpmc_timings *gpmc_t) { int err = 0; struct device *dev = &gpmc_nand_device.dev; @@ -112,11 +132,13 @@ int __init gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data) gpmc_get_client_irq(GPMC_IRQ_FIFOEVENTENABLE); gpmc_nand_resource[2].start = gpmc_get_client_irq(GPMC_IRQ_COUNT_EVENT); - /* Set timings in GPMC */ - err = omap2_nand_gpmc_retime(gpmc_nand_data); - if (err < 0) { - dev_err(dev, "Unable to set gpmc timings: %d\n", err); - return err; + + if (gpmc_t) { + err = omap2_nand_gpmc_retime(gpmc_nand_data, gpmc_t); + if (err < 0) { + dev_err(dev, "Unable to set gpmc timings: %d\n", err); + return err; + } } /* Enable RD PIN Monitoring Reg */ @@ -126,6 +148,9 @@ int __init gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data) gpmc_update_nand_reg(&gpmc_nand_data->reg, gpmc_nand_data->cs); + if (!gpmc_hwecc_bch_capable(gpmc_nand_data->ecc_opt)) + return -EINVAL; + err = platform_device_register(&gpmc_nand_device); if (err < 0) { dev_err(dev, "Unable to register NAND device\n"); diff --git a/arch/arm/mach-omap2/gpmc-nand.h b/arch/arm/mach-omap2/gpmc-nand.h new file mode 100644 index 0000000..d59e128 --- /dev/null +++ b/arch/arm/mach-omap2/gpmc-nand.h @@ -0,0 +1,27 @@ +/* + * arch/arm/mach-omap2/gpmc-nand.h + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __OMAP2_GPMC_NAND_H +#define __OMAP2_GPMC_NAND_H + +#include "gpmc.h" +#include <linux/platform_data/mtd-nand-omap2.h> + +#if IS_ENABLED(CONFIG_MTD_NAND_OMAP2) +extern int gpmc_nand_init(struct omap_nand_platform_data *d, + struct gpmc_timings *gpmc_t); +#else +static inline int gpmc_nand_init(struct omap_nand_platform_data *d, + struct gpmc_timings *gpmc_t) +{ + return 0; +} +#endif + +#endif diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c index 916716e..d102183 100644 --- a/arch/arm/mach-omap2/gpmc-onenand.c +++ b/arch/arm/mach-omap2/gpmc-onenand.c @@ -16,15 +16,25 @@ #include <linux/mtd/onenand_regs.h> #include <linux/io.h> #include <linux/platform_data/mtd-onenand-omap2.h> +#include <linux/err.h> #include <asm/mach/flash.h> -#include <plat/gpmc.h> - +#include "gpmc.h" #include "soc.h" +#include "gpmc-onenand.h" #define ONENAND_IO_SIZE SZ_128K +#define ONENAND_FLAG_SYNCREAD (1 << 0) +#define ONENAND_FLAG_SYNCWRITE (1 << 1) +#define ONENAND_FLAG_HF (1 << 2) +#define ONENAND_FLAG_VHF (1 << 3) + +static unsigned onenand_flags; +static unsigned latency; +static int fclk_offset; + static struct omap_onenand_platform_data *gpmc_onenand_data; static struct resource gpmc_onenand_resource = { @@ -38,11 +48,9 @@ static struct platform_device gpmc_onenand_device = { .resource = &gpmc_onenand_resource, }; -static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base) +static struct gpmc_timings omap2_onenand_calc_async_timings(void) { struct gpmc_timings t; - u32 reg; - int err; const int t_cer = 15; const int t_avdp = 12; @@ -55,11 +63,6 @@ static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base) const int t_wpl = 40; const int t_wph = 30; - /* Ensure sync read and sync write are disabled */ - reg = readw(onenand_base + ONENAND_REG_SYS_CFG1); - reg &= ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE; - writew(reg, onenand_base + ONENAND_REG_SYS_CFG1); - memset(&t, 0, sizeof(t)); t.sync_clk = 0; t.cs_on = 0; @@ -86,25 +89,30 @@ static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base) t.cs_wr_off = t.we_off + gpmc_round_ns_to_ticks(t_wph); t.wr_cycle = t.cs_wr_off + gpmc_round_ns_to_ticks(t_cez); + return t; +} + +static int gpmc_set_async_mode(int cs, struct gpmc_timings *t) +{ /* Configure GPMC for asynchronous read */ gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, GPMC_CONFIG1_DEVICESIZE_16 | GPMC_CONFIG1_MUXADDDATA); - err = gpmc_cs_set_timings(cs, &t); - if (err) - return err; + return gpmc_cs_set_timings(cs, t); +} + +static void omap2_onenand_set_async_mode(void __iomem *onenand_base) +{ + u32 reg; /* Ensure sync read and sync write are disabled */ reg = readw(onenand_base + ONENAND_REG_SYS_CFG1); reg &= ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE; writew(reg, onenand_base + ONENAND_REG_SYS_CFG1); - - return 0; } -static void set_onenand_cfg(void __iomem *onenand_base, int latency, - int sync_read, int sync_write, int hf, int vhf) +static void set_onenand_cfg(void __iomem *onenand_base) { u32 reg; @@ -112,19 +120,19 @@ static void set_onenand_cfg(void __iomem *onenand_base, int latency, reg &= ~((0x7 << ONENAND_SYS_CFG1_BRL_SHIFT) | (0x7 << 9)); reg |= (latency << ONENAND_SYS_CFG1_BRL_SHIFT) | ONENAND_SYS_CFG1_BL_16; - if (sync_read) + if (onenand_flags & ONENAND_FLAG_SYNCREAD) reg |= ONENAND_SYS_CFG1_SYNC_READ; else reg &= ~ONENAND_SYS_CFG1_SYNC_READ; - if (sync_write) + if (onenand_flags & ONENAND_FLAG_SYNCWRITE) reg |= ONENAND_SYS_CFG1_SYNC_WRITE; else reg &= ~ONENAND_SYS_CFG1_SYNC_WRITE; - if (hf) + if (onenand_flags & ONENAND_FLAG_HF) reg |= ONENAND_SYS_CFG1_HF; else reg &= ~ONENAND_SYS_CFG1_HF; - if (vhf) + if (onenand_flags & ONENAND_FLAG_VHF) reg |= ONENAND_SYS_CFG1_VHF; else reg &= ~ONENAND_SYS_CFG1_VHF; @@ -132,21 +140,10 @@ static void set_onenand_cfg(void __iomem *onenand_base, int latency, } static int omap2_onenand_get_freq(struct omap_onenand_platform_data *cfg, - void __iomem *onenand_base, bool *clk_dep) + void __iomem *onenand_base) { u16 ver = readw(onenand_base + ONENAND_REG_VERSION_ID); - int freq = 0; - - if (cfg->get_freq) { - struct onenand_freq_info fi; - - fi.maf_id = readw(onenand_base + ONENAND_REG_MANUFACTURER_ID); - fi.dev_id = readw(onenand_base + ONENAND_REG_DEVICE_ID); - fi.ver_id = ver; - freq = cfg->get_freq(&fi, clk_dep); - if (freq) - return freq; - } + int freq; switch ((ver >> 4) & 0xf) { case 0: @@ -172,9 +169,9 @@ static int omap2_onenand_get_freq(struct omap_onenand_platform_data *cfg, return freq; } -static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, - void __iomem *onenand_base, - int *freq_ptr) +static struct gpmc_timings +omap2_onenand_calc_sync_timings(struct omap_onenand_platform_data *cfg, + int freq) { struct gpmc_timings t; const int t_cer = 15; @@ -184,29 +181,15 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, const int t_wpl = 40; const int t_wph = 30; int min_gpmc_clk_period, t_ces, t_avds, t_avdh, t_ach, t_aavdh, t_rdyo; - int div, fclk_offset_ns, fclk_offset, gpmc_clk_ns, latency; - int first_time = 0, hf = 0, vhf = 0, sync_read = 0, sync_write = 0; - int err, ticks_cez; - int cs = cfg->cs, freq = *freq_ptr; u32 reg; - bool clk_dep = false; + int div, fclk_offset_ns, gpmc_clk_ns; + int ticks_cez; + int cs = cfg->cs; - if (cfg->flags & ONENAND_SYNC_READ) { - sync_read = 1; - } else if (cfg->flags & ONENAND_SYNC_READWRITE) { - sync_read = 1; - sync_write = 1; - } else - return omap2_onenand_set_async_mode(cs, onenand_base); - - if (!freq) { - /* Very first call freq is not known */ - err = omap2_onenand_set_async_mode(cs, onenand_base); - if (err) - return err; - freq = omap2_onenand_get_freq(cfg, onenand_base, &clk_dep); - first_time = 1; - } + if (cfg->flags & ONENAND_SYNC_READ) + onenand_flags = ONENAND_FLAG_SYNCREAD; + else if (cfg->flags & ONENAND_SYNC_READWRITE) + onenand_flags = ONENAND_FLAG_SYNCREAD | ONENAND_FLAG_SYNCWRITE; switch (freq) { case 104: @@ -244,44 +227,31 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, t_ach = 9; t_aavdh = 7; t_rdyo = 15; - sync_write = 0; + onenand_flags &= ~ONENAND_FLAG_SYNCWRITE; break; } - div = gpmc_cs_calc_divider(cs, min_gpmc_clk_period); + div = gpmc_calc_divider(min_gpmc_clk_period); gpmc_clk_ns = gpmc_ticks_to_ns(div); if (gpmc_clk_ns < 15) /* >66Mhz */ - hf = 1; + onenand_flags |= ONENAND_FLAG_HF; + else + onenand_flags &= ~ONENAND_FLAG_HF; if (gpmc_clk_ns < 12) /* >83Mhz */ - vhf = 1; - if (vhf) + onenand_flags |= ONENAND_FLAG_VHF; + else + onenand_flags &= ~ONENAND_FLAG_VHF; + if (onenand_flags & ONENAND_FLAG_VHF) latency = 8; - else if (hf) + else if (onenand_flags & ONENAND_FLAG_HF) latency = 6; else if (gpmc_clk_ns >= 25) /* 40 MHz*/ latency = 3; else latency = 4; - if (clk_dep) { - if (gpmc_clk_ns < 12) { /* >83Mhz */ - t_ces = 3; - t_avds = 4; - } else if (gpmc_clk_ns < 15) { /* >66Mhz */ - t_ces = 5; - t_avds = 4; - } else if (gpmc_clk_ns < 25) { /* >40Mhz */ - t_ces = 6; - t_avds = 5; - } else { - t_ces = 7; - t_avds = 7; - } - } - - if (first_time) - set_onenand_cfg(onenand_base, latency, - sync_read, sync_write, hf, vhf); + /* Set synchronous read timings */ + memset(&t, 0, sizeof(t)); if (div == 1) { reg = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG2); @@ -307,8 +277,6 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, reg); } - /* Set synchronous read timings */ - memset(&t, 0, sizeof(t)); t.sync_clk = min_gpmc_clk_period; t.cs_on = 0; t.adv_on = 0; @@ -330,7 +298,7 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, ticks_cez); /* Write */ - if (sync_write) { + if (onenand_flags & ONENAND_FLAG_SYNCWRITE) { t.adv_wr_off = t.adv_rd_off; t.we_on = 0; t.we_off = t.cs_rd_off; @@ -355,6 +323,14 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, } } + return t; +} + +static int gpmc_set_sync_mode(int cs, struct gpmc_timings *t) +{ + unsigned sync_read = onenand_flags & ONENAND_FLAG_SYNCREAD; + unsigned sync_write = onenand_flags & ONENAND_FLAG_SYNCWRITE; + /* Configure GPMC for synchronous read */ gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, GPMC_CONFIG1_WRAPBURST_SUPP | @@ -371,11 +347,45 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, GPMC_CONFIG1_DEVICETYPE_NOR | GPMC_CONFIG1_MUXADDDATA); - err = gpmc_cs_set_timings(cs, &t); - if (err) - return err; + return gpmc_cs_set_timings(cs, t); +} + +static int omap2_onenand_setup_async(void __iomem *onenand_base) +{ + struct gpmc_timings t; + int ret; + + omap2_onenand_set_async_mode(onenand_base); - set_onenand_cfg(onenand_base, latency, sync_read, sync_write, hf, vhf); + t = omap2_onenand_calc_async_timings(); + + ret = gpmc_set_async_mode(gpmc_onenand_data->cs, &t); + if (IS_ERR_VALUE(ret)) + return ret; + + omap2_onenand_set_async_mode(onenand_base); + + return 0; +} + +static int omap2_onenand_setup_sync(void __iomem *onenand_base, int *freq_ptr) +{ + int ret, freq = *freq_ptr; + struct gpmc_timings t; + + if (!freq) { + /* Very first call freq is not known */ + freq = omap2_onenand_get_freq(gpmc_onenand_data, onenand_base); + set_onenand_cfg(onenand_base); + } + + t = omap2_onenand_calc_sync_timings(gpmc_onenand_data, freq); + + ret = gpmc_set_sync_mode(gpmc_onenand_data->cs, &t); + if (IS_ERR_VALUE(ret)) + return ret; + + set_onenand_cfg(onenand_base); *freq_ptr = freq; @@ -385,15 +395,22 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, static int gpmc_onenand_setup(void __iomem *onenand_base, int *freq_ptr) { struct device *dev = &gpmc_onenand_device.dev; + unsigned l = ONENAND_SYNC_READ | ONENAND_SYNC_READWRITE; + int ret; - /* Set sync timings in GPMC */ - if (omap2_onenand_set_sync_mode(gpmc_onenand_data, onenand_base, - freq_ptr) < 0) { - dev_err(dev, "Unable to set synchronous mode\n"); - return -EINVAL; + ret = omap2_onenand_setup_async(onenand_base); + if (ret) { + dev_err(dev, "unable to set to async mode\n"); + return ret; } - return 0; + if (!(gpmc_onenand_data->flags & l)) + return 0; + + ret = omap2_onenand_setup_sync(onenand_base, freq_ptr); + if (ret) + dev_err(dev, "unable to set to sync mode\n"); + return ret; } void __init gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data) @@ -411,6 +428,11 @@ void __init gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data) gpmc_onenand_data->flags |= ONENAND_SYNC_READ; } + if (cpu_is_omap34xx()) + gpmc_onenand_data->flags |= ONENAND_IN_OMAP34XX; + else + gpmc_onenand_data->flags &= ~ONENAND_IN_OMAP34XX; + err = gpmc_cs_request(gpmc_onenand_data->cs, ONENAND_IO_SIZE, (unsigned long *)&gpmc_onenand_resource.start); if (err < 0) { diff --git a/arch/arm/mach-omap2/gpmc-onenand.h b/arch/arm/mach-omap2/gpmc-onenand.h new file mode 100644 index 0000000..216f23a --- /dev/null +++ b/arch/arm/mach-omap2/gpmc-onenand.h @@ -0,0 +1,24 @@ +/* + * arch/arm/mach-omap2/gpmc-onenand.h + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __OMAP2_GPMC_ONENAND_H +#define __OMAP2_GPMC_ONENAND_H + +#include <linux/platform_data/mtd-onenand-omap2.h> + +#if IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2) +extern void gpmc_onenand_init(struct omap_onenand_platform_data *d); +#else +#define board_onenand_data NULL +static inline void gpmc_onenand_init(struct omap_onenand_platform_data *d) +{ +} +#endif + +#endif diff --git a/arch/arm/mach-omap2/gpmc-smc91x.c b/arch/arm/mach-omap2/gpmc-smc91x.c index 5654753..6eed907 100644 --- a/arch/arm/mach-omap2/gpmc-smc91x.c +++ b/arch/arm/mach-omap2/gpmc-smc91x.c @@ -17,7 +17,7 @@ #include <linux/io.h> #include <linux/smc91x.h> -#include <plat/gpmc.h> +#include "gpmc.h" #include "gpmc-smc91x.h" #include "soc.h" diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c index 249a0b4..ef99011 100644 --- a/arch/arm/mach-omap2/gpmc-smsc911x.c +++ b/arch/arm/mach-omap2/gpmc-smsc911x.c @@ -20,7 +20,7 @@ #include <linux/io.h> #include <linux/smsc911x.h> -#include <plat/gpmc.h> +#include "gpmc.h" #include "gpmc-smsc911x.h" static struct resource gpmc_smsc911x_resources[] = { diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 92b5718..bf6117c 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -26,16 +26,14 @@ #include <linux/interrupt.h> #include <linux/platform_device.h> -#include <asm/mach-types.h> -#include <plat/gpmc.h> +#include <linux/platform_data/mtd-nand-omap2.h> -#include <plat/cpu.h> -#include <plat/gpmc.h> -#include <plat/sdrc.h> -#include <plat/omap_device.h> +#include <asm/mach-types.h> #include "soc.h" #include "common.h" +#include "omap_device.h" +#include "gpmc.h" #define DEVICE_NAME "omap-gpmc" @@ -59,6 +57,9 @@ #define GPMC_ECC_SIZE_CONFIG 0x1fc #define GPMC_ECC1_RESULT 0x200 #define GPMC_ECC_BCH_RESULT_0 0x240 /* not available on OMAP2 */ +#define GPMC_ECC_BCH_RESULT_1 0x244 /* not available on OMAP2 */ +#define GPMC_ECC_BCH_RESULT_2 0x248 /* not available on OMAP2 */ +#define GPMC_ECC_BCH_RESULT_3 0x24c /* not available on OMAP2 */ /* GPMC ECC control settings */ #define GPMC_ECC_CTRL_ECCCLEAR 0x100 @@ -75,6 +76,7 @@ #define GPMC_CS0_OFFSET 0x60 #define GPMC_CS_SIZE 0x30 +#define GPMC_BCH_SIZE 0x10 #define GPMC_MEM_START 0x00000000 #define GPMC_MEM_END 0x3FFFFFFF @@ -137,7 +139,6 @@ static struct resource gpmc_mem_root; static struct resource gpmc_cs_mem[GPMC_CS_NUM]; static DEFINE_SPINLOCK(gpmc_mem_lock); static unsigned int gpmc_cs_map; /* flag for cs which are initialized */ -static int gpmc_ecc_used = -EINVAL; /* cs using ecc engine */ static struct device *gpmc_dev; static int gpmc_irq; static resource_size_t phys_base, mem_size; @@ -158,22 +159,6 @@ static u32 gpmc_read_reg(int idx) return __raw_readl(gpmc_base + idx); } -static void gpmc_cs_write_byte(int cs, int idx, u8 val) -{ - void __iomem *reg_addr; - - reg_addr = gpmc_base + GPMC_CS0_OFFSET + (cs * GPMC_CS_SIZE) + idx; - __raw_writeb(val, reg_addr); -} - -static u8 gpmc_cs_read_byte(int cs, int idx) -{ - void __iomem *reg_addr; - - reg_addr = gpmc_base + GPMC_CS0_OFFSET + (cs * GPMC_CS_SIZE) + idx; - return __raw_readb(reg_addr); -} - void gpmc_cs_write_reg(int cs, int idx, u32 val) { void __iomem *reg_addr; @@ -288,7 +273,7 @@ static int set_gpmc_timing_reg(int cs, int reg, int st_bit, int end_bit, return -1 #endif -int gpmc_cs_calc_divider(int cs, unsigned int sync_clk) +int gpmc_calc_divider(unsigned int sync_clk) { int div; u32 l; @@ -308,7 +293,7 @@ int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t) int div; u32 l; - div = gpmc_cs_calc_divider(cs, t->sync_clk); + div = gpmc_calc_divider(t->sync_clk); if (div < 0) return div; @@ -509,44 +494,6 @@ void gpmc_cs_free(int cs) EXPORT_SYMBOL(gpmc_cs_free); /** - * gpmc_read_status - read access request to get the different gpmc status - * @cmd: command type - * @return status - */ -int gpmc_read_status(int cmd) -{ - int status = -EINVAL; - u32 regval = 0; - - switch (cmd) { - case GPMC_GET_IRQ_STATUS: - status = gpmc_read_reg(GPMC_IRQSTATUS); - break; - - case GPMC_PREFETCH_FIFO_CNT: - regval = gpmc_read_reg(GPMC_PREFETCH_STATUS); - status = GPMC_PREFETCH_STATUS_FIFO_CNT(regval); - break; - - case GPMC_PREFETCH_COUNT: - regval = gpmc_read_reg(GPMC_PREFETCH_STATUS); - status = GPMC_PREFETCH_STATUS_COUNT(regval); - break; - - case GPMC_STATUS_BUFFER: - regval = gpmc_read_reg(GPMC_STATUS); - /* 1 : buffer is available to write */ - status = regval & GPMC_STATUS_BUFF_EMPTY; - break; - - default: - printk(KERN_ERR "gpmc_read_status: Not supported\n"); - } - return status; -} -EXPORT_SYMBOL(gpmc_read_status); - -/** * gpmc_cs_configure - write request to configure gpmc * @cs: chip select number * @cmd: command type @@ -614,121 +561,10 @@ int gpmc_cs_configure(int cs, int cmd, int wval) } EXPORT_SYMBOL(gpmc_cs_configure); -/** - * gpmc_nand_read - nand specific read access request - * @cs: chip select number - * @cmd: command type - */ -int gpmc_nand_read(int cs, int cmd) -{ - int rval = -EINVAL; - - switch (cmd) { - case GPMC_NAND_DATA: - rval = gpmc_cs_read_byte(cs, GPMC_CS_NAND_DATA); - break; - - default: - printk(KERN_ERR "gpmc_read_nand_ctrl: Not supported\n"); - } - return rval; -} -EXPORT_SYMBOL(gpmc_nand_read); - -/** - * gpmc_nand_write - nand specific write request - * @cs: chip select number - * @cmd: command type - * @wval: value to write - */ -int gpmc_nand_write(int cs, int cmd, int wval) -{ - int err = 0; - - switch (cmd) { - case GPMC_NAND_COMMAND: - gpmc_cs_write_byte(cs, GPMC_CS_NAND_COMMAND, wval); - break; - - case GPMC_NAND_ADDRESS: - gpmc_cs_write_byte(cs, GPMC_CS_NAND_ADDRESS, wval); - break; - - case GPMC_NAND_DATA: - gpmc_cs_write_byte(cs, GPMC_CS_NAND_DATA, wval); - - default: - printk(KERN_ERR "gpmc_write_nand_ctrl: Not supported\n"); - err = -EINVAL; - } - return err; -} -EXPORT_SYMBOL(gpmc_nand_write); - - - -/** - * gpmc_prefetch_enable - configures and starts prefetch transfer - * @cs: cs (chip select) number - * @fifo_th: fifo threshold to be used for read/ write - * @dma_mode: dma mode enable (1) or disable (0) - * @u32_count: number of bytes to be transferred - * @is_write: prefetch read(0) or write post(1) mode - */ -int gpmc_prefetch_enable(int cs, int fifo_th, int dma_mode, - unsigned int u32_count, int is_write) -{ - - if (fifo_th > PREFETCH_FIFOTHRESHOLD_MAX) { - pr_err("gpmc: fifo threshold is not supported\n"); - return -1; - } else if (!(gpmc_read_reg(GPMC_PREFETCH_CONTROL))) { - /* Set the amount of bytes to be prefetched */ - gpmc_write_reg(GPMC_PREFETCH_CONFIG2, u32_count); - - /* Set dma/mpu mode, the prefetch read / post write and - * enable the engine. Set which cs is has requested for. - */ - gpmc_write_reg(GPMC_PREFETCH_CONFIG1, ((cs << CS_NUM_SHIFT) | - PREFETCH_FIFOTHRESHOLD(fifo_th) | - ENABLE_PREFETCH | - (dma_mode << DMA_MPU_MODE) | - (0x1 & is_write))); - - /* Start the prefetch engine */ - gpmc_write_reg(GPMC_PREFETCH_CONTROL, 0x1); - } else { - return -EBUSY; - } - - return 0; -} -EXPORT_SYMBOL(gpmc_prefetch_enable); - -/** - * gpmc_prefetch_reset - disables and stops the prefetch engine - */ -int gpmc_prefetch_reset(int cs) -{ - u32 config1; - - /* check if the same module/cs is trying to reset */ - config1 = gpmc_read_reg(GPMC_PREFETCH_CONFIG1); - if (((config1 >> CS_NUM_SHIFT) & 0x7) != cs) - return -EINVAL; - - /* Stop the PFPW engine */ - gpmc_write_reg(GPMC_PREFETCH_CONTROL, 0x0); - - /* Reset/disable the PFPW engine */ - gpmc_write_reg(GPMC_PREFETCH_CONFIG1, 0x0); - - return 0; -} -EXPORT_SYMBOL(gpmc_prefetch_reset); - void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs) { + int i; + reg->gpmc_status = gpmc_base + GPMC_STATUS; reg->gpmc_nand_command = gpmc_base + GPMC_CS0_OFFSET + GPMC_CS_NAND_COMMAND + GPMC_CS_SIZE * cs; @@ -744,7 +580,17 @@ void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs) reg->gpmc_ecc_control = gpmc_base + GPMC_ECC_CONTROL; reg->gpmc_ecc_size_config = gpmc_base + GPMC_ECC_SIZE_CONFIG; reg->gpmc_ecc1_result = gpmc_base + GPMC_ECC1_RESULT; - reg->gpmc_bch_result0 = gpmc_base + GPMC_ECC_BCH_RESULT_0; + + for (i = 0; i < GPMC_BCH_NUM_REMAINDER; i++) { + reg->gpmc_bch_result0[i] = gpmc_base + GPMC_ECC_BCH_RESULT_0 + + GPMC_BCH_SIZE * i; + reg->gpmc_bch_result1[i] = gpmc_base + GPMC_ECC_BCH_RESULT_1 + + GPMC_BCH_SIZE * i; + reg->gpmc_bch_result2[i] = gpmc_base + GPMC_ECC_BCH_RESULT_2 + + GPMC_BCH_SIZE * i; + reg->gpmc_bch_result3[i] = gpmc_base + GPMC_ECC_BCH_RESULT_3 + + GPMC_BCH_SIZE * i; + } } int gpmc_get_client_irq(unsigned irq_config) @@ -1093,267 +939,3 @@ void omap3_gpmc_restore_context(void) } } #endif /* CONFIG_ARCH_OMAP3 */ - -/** - * gpmc_enable_hwecc - enable hardware ecc functionality - * @cs: chip select number - * @mode: read/write mode - * @dev_width: device bus width(1 for x16, 0 for x8) - * @ecc_size: bytes for which ECC will be generated - */ -int gpmc_enable_hwecc(int cs, int mode, int dev_width, int ecc_size) -{ - unsigned int val; - - /* check if ecc module is in used */ - if (gpmc_ecc_used != -EINVAL) - return -EINVAL; - - gpmc_ecc_used = cs; - - /* clear ecc and enable bits */ - gpmc_write_reg(GPMC_ECC_CONTROL, - GPMC_ECC_CTRL_ECCCLEAR | - GPMC_ECC_CTRL_ECCREG1); - - /* program ecc and result sizes */ - val = ((((ecc_size >> 1) - 1) << 22) | (0x0000000F)); - gpmc_write_reg(GPMC_ECC_SIZE_CONFIG, val); - - switch (mode) { - case GPMC_ECC_READ: - case GPMC_ECC_WRITE: - gpmc_write_reg(GPMC_ECC_CONTROL, - GPMC_ECC_CTRL_ECCCLEAR | - GPMC_ECC_CTRL_ECCREG1); - break; - case GPMC_ECC_READSYN: - gpmc_write_reg(GPMC_ECC_CONTROL, - GPMC_ECC_CTRL_ECCCLEAR | - GPMC_ECC_CTRL_ECCDISABLE); - break; - default: - printk(KERN_INFO "Error: Unrecognized Mode[%d]!\n", mode); - break; - } - - /* (ECC 16 or 8 bit col) | ( CS ) | ECC Enable */ - val = (dev_width << 7) | (cs << 1) | (0x1); - gpmc_write_reg(GPMC_ECC_CONFIG, val); - return 0; -} -EXPORT_SYMBOL_GPL(gpmc_enable_hwecc); - -/** - * gpmc_calculate_ecc - generate non-inverted ecc bytes - * @cs: chip select number - * @dat: data pointer over which ecc is computed - * @ecc_code: ecc code buffer - * - * Using non-inverted ECC is considered ugly since writing a blank - * page (padding) will clear the ECC bytes. This is not a problem as long - * no one is trying to write data on the seemingly unused page. Reading - * an erased page will produce an ECC mismatch between generated and read - * ECC bytes that has to be dealt with separately. - */ -int gpmc_calculate_ecc(int cs, const u_char *dat, u_char *ecc_code) -{ - unsigned int val = 0x0; - - if (gpmc_ecc_used != cs) - return -EINVAL; - - /* read ecc result */ - val = gpmc_read_reg(GPMC_ECC1_RESULT); - *ecc_code++ = val; /* P128e, ..., P1e */ - *ecc_code++ = val >> 16; /* P128o, ..., P1o */ - /* P2048o, P1024o, P512o, P256o, P2048e, P1024e, P512e, P256e */ - *ecc_code++ = ((val >> 8) & 0x0f) | ((val >> 20) & 0xf0); - - gpmc_ecc_used = -EINVAL; - return 0; -} -EXPORT_SYMBOL_GPL(gpmc_calculate_ecc); - -#ifdef CONFIG_ARCH_OMAP3 - -/** - * gpmc_init_hwecc_bch - initialize hardware BCH ecc functionality - * @cs: chip select number - * @nsectors: how many 512-byte sectors to process - * @nerrors: how many errors to correct per sector (4 or 8) - * - * This function must be executed before any call to gpmc_enable_hwecc_bch. - */ -int gpmc_init_hwecc_bch(int cs, int nsectors, int nerrors) -{ - /* check if ecc module is in use */ - if (gpmc_ecc_used != -EINVAL) - return -EINVAL; - - /* support only OMAP3 class */ - if (!cpu_is_omap34xx()) { - printk(KERN_ERR "BCH ecc is not supported on this CPU\n"); - return -EINVAL; - } - - /* - * For now, assume 4-bit mode is only supported on OMAP3630 ES1.x, x>=1. - * Other chips may be added if confirmed to work. - */ - if ((nerrors == 4) && - (!cpu_is_omap3630() || (GET_OMAP_REVISION() == 0))) { - printk(KERN_ERR "BCH 4-bit mode is not supported on this CPU\n"); - return -EINVAL; - } - - /* sanity check */ - if (nsectors > 8) { - printk(KERN_ERR "BCH cannot process %d sectors (max is 8)\n", - nsectors); - return -EINVAL; - } - - return 0; -} -EXPORT_SYMBOL_GPL(gpmc_init_hwecc_bch); - -/** - * gpmc_enable_hwecc_bch - enable hardware BCH ecc functionality - * @cs: chip select number - * @mode: read/write mode - * @dev_width: device bus width(1 for x16, 0 for x8) - * @nsectors: how many 512-byte sectors to process - * @nerrors: how many errors to correct per sector (4 or 8) - */ -int gpmc_enable_hwecc_bch(int cs, int mode, int dev_width, int nsectors, - int nerrors) -{ - unsigned int val; - - /* check if ecc module is in use */ - if (gpmc_ecc_used != -EINVAL) - return -EINVAL; - - gpmc_ecc_used = cs; - - /* clear ecc and enable bits */ - gpmc_write_reg(GPMC_ECC_CONTROL, 0x1); - - /* - * When using BCH, sector size is hardcoded to 512 bytes. - * Here we are using wrapping mode 6 both for reading and writing, with: - * size0 = 0 (no additional protected byte in spare area) - * size1 = 32 (skip 32 nibbles = 16 bytes per sector in spare area) - */ - gpmc_write_reg(GPMC_ECC_SIZE_CONFIG, (32 << 22) | (0 << 12)); - - /* BCH configuration */ - val = ((1 << 16) | /* enable BCH */ - (((nerrors == 8) ? 1 : 0) << 12) | /* 8 or 4 bits */ - (0x06 << 8) | /* wrap mode = 6 */ - (dev_width << 7) | /* bus width */ - (((nsectors-1) & 0x7) << 4) | /* number of sectors */ - (cs << 1) | /* ECC CS */ - (0x1)); /* enable ECC */ - - gpmc_write_reg(GPMC_ECC_CONFIG, val); - gpmc_write_reg(GPMC_ECC_CONTROL, 0x101); - return 0; -} -EXPORT_SYMBOL_GPL(gpmc_enable_hwecc_bch); - -/** - * gpmc_calculate_ecc_bch4 - Generate 7 ecc bytes per sector of 512 data bytes - * @cs: chip select number - * @dat: The pointer to data on which ecc is computed - * @ecc: The ecc output buffer - */ -int gpmc_calculate_ecc_bch4(int cs, const u_char *dat, u_char *ecc) -{ - int i; - unsigned long nsectors, reg, val1, val2; - - if (gpmc_ecc_used != cs) - return -EINVAL; - - nsectors = ((gpmc_read_reg(GPMC_ECC_CONFIG) >> 4) & 0x7) + 1; - - for (i = 0; i < nsectors; i++) { - - reg = GPMC_ECC_BCH_RESULT_0 + 16*i; - - /* Read hw-computed remainder */ - val1 = gpmc_read_reg(reg + 0); - val2 = gpmc_read_reg(reg + 4); - - /* - * Add constant polynomial to remainder, in order to get an ecc - * sequence of 0xFFs for a buffer filled with 0xFFs; and - * left-justify the resulting polynomial. - */ - *ecc++ = 0x28 ^ ((val2 >> 12) & 0xFF); - *ecc++ = 0x13 ^ ((val2 >> 4) & 0xFF); - *ecc++ = 0xcc ^ (((val2 & 0xF) << 4)|((val1 >> 28) & 0xF)); - *ecc++ = 0x39 ^ ((val1 >> 20) & 0xFF); - *ecc++ = 0x96 ^ ((val1 >> 12) & 0xFF); - *ecc++ = 0xac ^ ((val1 >> 4) & 0xFF); - *ecc++ = 0x7f ^ ((val1 & 0xF) << 4); - } - - gpmc_ecc_used = -EINVAL; - return 0; -} -EXPORT_SYMBOL_GPL(gpmc_calculate_ecc_bch4); - -/** - * gpmc_calculate_ecc_bch8 - Generate 13 ecc bytes per block of 512 data bytes - * @cs: chip select number - * @dat: The pointer to data on which ecc is computed - * @ecc: The ecc output buffer - */ -int gpmc_calculate_ecc_bch8(int cs, const u_char *dat, u_char *ecc) -{ - int i; - unsigned long nsectors, reg, val1, val2, val3, val4; - - if (gpmc_ecc_used != cs) - return -EINVAL; - - nsectors = ((gpmc_read_reg(GPMC_ECC_CONFIG) >> 4) & 0x7) + 1; - - for (i = 0; i < nsectors; i++) { - - reg = GPMC_ECC_BCH_RESULT_0 + 16*i; - - /* Read hw-computed remainder */ - val1 = gpmc_read_reg(reg + 0); - val2 = gpmc_read_reg(reg + 4); - val3 = gpmc_read_reg(reg + 8); - val4 = gpmc_read_reg(reg + 12); - - /* - * Add constant polynomial to remainder, in order to get an ecc - * sequence of 0xFFs for a buffer filled with 0xFFs. - */ - *ecc++ = 0xef ^ (val4 & 0xFF); - *ecc++ = 0x51 ^ ((val3 >> 24) & 0xFF); - *ecc++ = 0x2e ^ ((val3 >> 16) & 0xFF); - *ecc++ = 0x09 ^ ((val3 >> 8) & 0xFF); - *ecc++ = 0xed ^ (val3 & 0xFF); - *ecc++ = 0x93 ^ ((val2 >> 24) & 0xFF); - *ecc++ = 0x9a ^ ((val2 >> 16) & 0xFF); - *ecc++ = 0xc2 ^ ((val2 >> 8) & 0xFF); - *ecc++ = 0x97 ^ (val2 & 0xFF); - *ecc++ = 0x79 ^ ((val1 >> 24) & 0xFF); - *ecc++ = 0xe5 ^ ((val1 >> 16) & 0xFF); - *ecc++ = 0x24 ^ ((val1 >> 8) & 0xFF); - *ecc++ = 0xb5 ^ (val1 & 0xFF); - } - - gpmc_ecc_used = -EINVAL; - return 0; -} -EXPORT_SYMBOL_GPL(gpmc_calculate_ecc_bch8); - -#endif /* CONFIG_ARCH_OMAP3 */ diff --git a/arch/arm/mach-omap2/gpmc.h b/arch/arm/mach-omap2/gpmc.h new file mode 100644 index 0000000..79f4dfc --- /dev/null +++ b/arch/arm/mach-omap2/gpmc.h @@ -0,0 +1,135 @@ +/* + * General-Purpose Memory Controller for OMAP2 + * + * Copyright (C) 2005-2006 Nokia Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __OMAP2_GPMC_H +#define __OMAP2_GPMC_H + +#include <linux/platform_data/mtd-nand-omap2.h> + +/* Maximum Number of Chip Selects */ +#define GPMC_CS_NUM 8 + +#define GPMC_CS_CONFIG1 0x00 +#define GPMC_CS_CONFIG2 0x04 +#define GPMC_CS_CONFIG3 0x08 +#define GPMC_CS_CONFIG4 0x0c +#define GPMC_CS_CONFIG5 0x10 +#define GPMC_CS_CONFIG6 0x14 +#define GPMC_CS_CONFIG7 0x18 +#define GPMC_CS_NAND_COMMAND 0x1c +#define GPMC_CS_NAND_ADDRESS 0x20 +#define GPMC_CS_NAND_DATA 0x24 + +/* Control Commands */ +#define GPMC_CONFIG_RDY_BSY 0x00000001 +#define GPMC_CONFIG_DEV_SIZE 0x00000002 +#define GPMC_CONFIG_DEV_TYPE 0x00000003 +#define GPMC_SET_IRQ_STATUS 0x00000004 +#define GPMC_CONFIG_WP 0x00000005 + +#define GPMC_ENABLE_IRQ 0x0000000d + +/* ECC commands */ +#define GPMC_ECC_READ 0 /* Reset Hardware ECC for read */ +#define GPMC_ECC_WRITE 1 /* Reset Hardware ECC for write */ +#define GPMC_ECC_READSYN 2 /* Reset before syndrom is read back */ + +#define GPMC_CONFIG1_WRAPBURST_SUPP (1 << 31) +#define GPMC_CONFIG1_READMULTIPLE_SUPP (1 << 30) +#define GPMC_CONFIG1_READTYPE_ASYNC (0 << 29) +#define GPMC_CONFIG1_READTYPE_SYNC (1 << 29) +#define GPMC_CONFIG1_WRITEMULTIPLE_SUPP (1 << 28) +#define GPMC_CONFIG1_WRITETYPE_ASYNC (0 << 27) +#define GPMC_CONFIG1_WRITETYPE_SYNC (1 << 27) +#define GPMC_CONFIG1_CLKACTIVATIONTIME(val) ((val & 3) << 25) +#define GPMC_CONFIG1_PAGE_LEN(val) ((val & 3) << 23) +#define GPMC_CONFIG1_WAIT_READ_MON (1 << 22) +#define GPMC_CONFIG1_WAIT_WRITE_MON (1 << 21) +#define GPMC_CONFIG1_WAIT_MON_IIME(val) ((val & 3) << 18) +#define GPMC_CONFIG1_WAIT_PIN_SEL(val) ((val & 3) << 16) +#define GPMC_CONFIG1_DEVICESIZE(val) ((val & 3) << 12) +#define GPMC_CONFIG1_DEVICESIZE_16 GPMC_CONFIG1_DEVICESIZE(1) +#define GPMC_CONFIG1_DEVICETYPE(val) ((val & 3) << 10) +#define GPMC_CONFIG1_DEVICETYPE_NOR GPMC_CONFIG1_DEVICETYPE(0) +#define GPMC_CONFIG1_MUXADDDATA (1 << 9) +#define GPMC_CONFIG1_TIME_PARA_GRAN (1 << 4) +#define GPMC_CONFIG1_FCLK_DIV(val) (val & 3) +#define GPMC_CONFIG1_FCLK_DIV2 (GPMC_CONFIG1_FCLK_DIV(1)) +#define GPMC_CONFIG1_FCLK_DIV3 (GPMC_CONFIG1_FCLK_DIV(2)) +#define GPMC_CONFIG1_FCLK_DIV4 (GPMC_CONFIG1_FCLK_DIV(3)) +#define GPMC_CONFIG7_CSVALID (1 << 6) + +#define GPMC_DEVICETYPE_NOR 0 +#define GPMC_DEVICETYPE_NAND 2 +#define GPMC_CONFIG_WRITEPROTECT 0x00000010 +#define WR_RD_PIN_MONITORING 0x00600000 +#define GPMC_IRQ_FIFOEVENTENABLE 0x01 +#define GPMC_IRQ_COUNT_EVENT 0x02 + + +/* + * Note that all values in this struct are in nanoseconds except sync_clk + * (which is in picoseconds), while the register values are in gpmc_fck cycles. + */ +struct gpmc_timings { + /* Minimum clock period for synchronous mode (in picoseconds) */ + u32 sync_clk; + + /* Chip-select signal timings corresponding to GPMC_CS_CONFIG2 */ + u16 cs_on; /* Assertion time */ + u16 cs_rd_off; /* Read deassertion time */ + u16 cs_wr_off; /* Write deassertion time */ + + /* ADV signal timings corresponding to GPMC_CONFIG3 */ + u16 adv_on; /* Assertion time */ + u16 adv_rd_off; /* Read deassertion time */ + u16 adv_wr_off; /* Write deassertion time */ + + /* WE signals timings corresponding to GPMC_CONFIG4 */ + u16 we_on; /* WE assertion time */ + u16 we_off; /* WE deassertion time */ + + /* OE signals timings corresponding to GPMC_CONFIG4 */ + u16 oe_on; /* OE assertion time */ + u16 oe_off; /* OE deassertion time */ + + /* Access time and cycle time timings corresponding to GPMC_CONFIG5 */ + u16 page_burst_access; /* Multiple access word delay */ + u16 access; /* Start-cycle to first data valid delay */ + u16 rd_cycle; /* Total read cycle time */ + u16 wr_cycle; /* Total write cycle time */ + + /* The following are only on OMAP3430 */ + u16 wr_access; /* WRACCESSTIME */ + u16 wr_data_mux_bus; /* WRDATAONADMUXBUS */ +}; + +extern void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs); +extern int gpmc_get_client_irq(unsigned irq_config); + +extern unsigned int gpmc_ns_to_ticks(unsigned int time_ns); +extern unsigned int gpmc_ps_to_ticks(unsigned int time_ps); +extern unsigned int gpmc_ticks_to_ns(unsigned int ticks); +extern unsigned int gpmc_round_ns_to_ticks(unsigned int time_ns); +extern unsigned long gpmc_get_fclk_period(void); + +extern void gpmc_cs_write_reg(int cs, int idx, u32 val); +extern u32 gpmc_cs_read_reg(int cs, int idx); +extern int gpmc_calc_divider(unsigned int sync_clk); +extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t); +extern int gpmc_cs_request(int cs, unsigned long size, unsigned long *base); +extern void gpmc_cs_free(int cs); +extern int gpmc_cs_set_reserved(int cs, int reserved); +extern int gpmc_cs_reserved(int cs); +extern void omap3_gpmc_save_context(void); +extern void omap3_gpmc_restore_context(void); +extern int gpmc_cs_configure(int cs, int cmd, int wval); + +#endif diff --git a/arch/arm/mach-omap2/hdq1w.c b/arch/arm/mach-omap2/hdq1w.c index e003f2b..3da8900 100644 --- a/arch/arm/mach-omap2/hdq1w.c +++ b/arch/arm/mach-omap2/hdq1w.c @@ -27,8 +27,8 @@ #include <linux/err.h> #include <linux/platform_device.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> +#include "omap_hwmod.h" +#include "omap_device.h" #include "hdq1w.h" #include "common.h" diff --git a/arch/arm/mach-omap2/hdq1w.h b/arch/arm/mach-omap2/hdq1w.h index 0c1efc8..c7e08d2 100644 --- a/arch/arm/mach-omap2/hdq1w.h +++ b/arch/arm/mach-omap2/hdq1w.h @@ -21,7 +21,7 @@ #ifndef ARCH_ARM_MACH_OMAP2_HDQ1W_H #define ARCH_ARM_MACH_OMAP2_HDQ1W_H -#include <plat/omap_hwmod.h> +#include "omap_hwmod.h" /* * XXX A future cleanup patch should modify diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index 4d3a632..4a96433 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -14,14 +14,14 @@ #include <linux/string.h> #include <linux/delay.h> #include <linux/gpio.h> -#include <mach/hardware.h> #include <linux/platform_data/gpio-omap.h> -#include <plat/mmc.h> -#include <plat/omap-pm.h> -#include <plat/omap_device.h> +#include "soc.h" +#include "omap_device.h" +#include "omap-pm.h" #include "mux.h" +#include "mmc.h" #include "hsmmc.h" #include "control.h" diff --git a/arch/arm/mach-omap2/hwspinlock.c b/arch/arm/mach-omap2/hwspinlock.c index 8763c85..1df9b5f 100644 --- a/arch/arm/mach-omap2/hwspinlock.c +++ b/arch/arm/mach-omap2/hwspinlock.c @@ -21,8 +21,8 @@ #include <linux/err.h> #include <linux/hwspinlock.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> +#include "omap_hwmod.h" +#include "omap_device.h" static struct hwspinlock_pdata omap_hwspinlock_pdata __initdata = { .base_id = 0, diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c index fc57e67..4e63097 100644 --- a/arch/arm/mach-omap2/i2c.c +++ b/arch/arm/mach-omap2/i2c.c @@ -19,11 +19,13 @@ * */ -#include <plat/i2c.h> +#include "soc.h" #include "common.h" -#include <plat/omap_hwmod.h> +#include "omap_hwmod.h" +#include "omap_device.h" #include "mux.h" +#include "i2c.h" /* In register I2C_CON, Bit 15 is the I2C enable bit */ #define I2C_EN BIT(15) @@ -33,7 +35,9 @@ /* Maximum microseconds to wait for OMAP module to softreset */ #define MAX_MODULE_SOFTRESET_WAIT 10000 -void __init omap2_i2c_mux_pins(int bus_id) +#define MAX_OMAP_I2C_HWMOD_NAME_LEN 16 + +static void __init omap2_i2c_mux_pins(int bus_id) { char mux_name[sizeof("i2c2_scl.i2c2_scl")]; @@ -104,3 +108,62 @@ int omap_i2c_reset(struct omap_hwmod *oh) return 0; } + +static int __init omap_i2c_nr_ports(void) +{ + int ports = 0; + + if (cpu_is_omap24xx()) + ports = 2; + else if (cpu_is_omap34xx()) + ports = 3; + else if (cpu_is_omap44xx()) + ports = 4; + return ports; +} + +static const char name[] = "omap_i2c"; + +int __init omap_i2c_add_bus(struct omap_i2c_bus_platform_data *i2c_pdata, + int bus_id) +{ + int l; + struct omap_hwmod *oh; + struct platform_device *pdev; + char oh_name[MAX_OMAP_I2C_HWMOD_NAME_LEN]; + struct omap_i2c_bus_platform_data *pdata; + struct omap_i2c_dev_attr *dev_attr; + + if (bus_id > omap_i2c_nr_ports()) + return -EINVAL; + + omap2_i2c_mux_pins(bus_id); + + l = snprintf(oh_name, MAX_OMAP_I2C_HWMOD_NAME_LEN, "i2c%d", bus_id); + WARN(l >= MAX_OMAP_I2C_HWMOD_NAME_LEN, + "String buffer overflow in I2C%d device setup\n", bus_id); + oh = omap_hwmod_lookup(oh_name); + if (!oh) { + pr_err("Could not look up %s\n", oh_name); + return -EEXIST; + } + + pdata = i2c_pdata; + /* + * pass the hwmod class's CPU-specific knowledge of I2C IP revision in + * use, and functionality implementation flags, up to the OMAP I2C + * driver via platform data + */ + pdata->rev = oh->class->rev; + + dev_attr = (struct omap_i2c_dev_attr *)oh->dev_attr; + pdata->flags = dev_attr->flags; + + pdev = omap_device_build(name, bus_id, oh, pdata, + sizeof(struct omap_i2c_bus_platform_data), + NULL, 0, 0); + WARN(IS_ERR(pdev), "Could not build omap_device for %s\n", name); + + return PTR_RET(pdev); +} + diff --git a/arch/arm/mach-omap2/i2c.h b/arch/arm/mach-omap2/i2c.h new file mode 100644 index 0000000..42b6f2e --- /dev/null +++ b/arch/arm/mach-omap2/i2c.h @@ -0,0 +1,42 @@ +/* + * Helper module for board specific I2C bus registration + * + * Copyright (C) 2009 Nokia Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <plat/i2c.h> + +#ifndef __MACH_OMAP2_I2C_H +#define __MACH_OMAP2_I2C_H + +/** + * i2c_dev_attr - OMAP I2C controller device attributes for omap_hwmod + * @fifo_depth: total controller FIFO size (in bytes) + * @flags: differences in hardware support capability + * + * @fifo_depth represents what exists on the hardware, not what is + * actually configured at runtime by the device driver. + */ +struct omap_i2c_dev_attr { + u8 fifo_depth; + u32 flags; +}; + +int omap_i2c_reset(struct omap_hwmod *oh); + +#endif /* __MACH_OMAP2_I2C_H */ diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S index 93d10de..cfaed13 100644 --- a/arch/arm/mach-omap2/include/mach/debug-macro.S +++ b/arch/arm/mach-omap2/include/mach/debug-macro.S @@ -13,7 +13,7 @@ #include <linux/serial_reg.h> -#include <plat/serial.h> +#include <mach/serial.h> #define UART_OFFSET(addr) ((addr) & 0x00ffffff) diff --git a/arch/arm/mach-omap2/include/mach/gpio.h b/arch/arm/mach-omap2/include/mach/gpio.h deleted file mode 100644 index 5621cc5..0000000 --- a/arch/arm/mach-omap2/include/mach/gpio.h +++ /dev/null @@ -1,3 +0,0 @@ -/* - * arch/arm/mach-omap2/include/mach/gpio.h - */ diff --git a/arch/arm/mach-omap2/include/mach/serial.h b/arch/arm/mach-omap2/include/mach/serial.h new file mode 100644 index 0000000..70eda00 --- /dev/null +++ b/arch/arm/mach-omap2/include/mach/serial.h @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2009 Texas Instruments + * Added OMAP4 support- Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +/* + * Memory entry used for the DEBUG_LL UART configuration, relative to + * start of RAM. See also uncompress.h and debug-macro.S. + * + * Note that using a memory location for storing the UART configuration + * has at least two limitations: + * + * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the + * uncompress code could then partially overwrite itself + * 2. We assume printascii is called at least once before paging_init, + * and addruart has a chance to read OMAP_UART_INFO + */ +#define OMAP_UART_INFO_OFS 0x3ffc + +/* OMAP2 serial ports */ +#define OMAP2_UART1_BASE 0x4806a000 +#define OMAP2_UART2_BASE 0x4806c000 +#define OMAP2_UART3_BASE 0x4806e000 + +/* OMAP3 serial ports */ +#define OMAP3_UART1_BASE OMAP2_UART1_BASE +#define OMAP3_UART2_BASE OMAP2_UART2_BASE +#define OMAP3_UART3_BASE 0x49020000 +#define OMAP3_UART4_BASE 0x49042000 /* Only on 36xx */ +#define OMAP3_UART4_AM35XX_BASE 0x4809E000 /* Only on AM35xx */ + +/* OMAP4 serial ports */ +#define OMAP4_UART1_BASE OMAP2_UART1_BASE +#define OMAP4_UART2_BASE OMAP2_UART2_BASE +#define OMAP4_UART3_BASE 0x48020000 +#define OMAP4_UART4_BASE 0x4806e000 + +/* TI81XX serial ports */ +#define TI81XX_UART1_BASE 0x48020000 +#define TI81XX_UART2_BASE 0x48022000 +#define TI81XX_UART3_BASE 0x48024000 + +/* AM3505/3517 UART4 */ +#define AM35XX_UART4_BASE 0x4809E000 /* Only on AM3505/3517 */ + +/* AM33XX serial port */ +#define AM33XX_UART1_BASE 0x44E09000 + +/* OMAP5 serial ports */ +#define OMAP5_UART1_BASE OMAP2_UART1_BASE +#define OMAP5_UART2_BASE OMAP2_UART2_BASE +#define OMAP5_UART3_BASE OMAP4_UART3_BASE +#define OMAP5_UART4_BASE OMAP4_UART4_BASE +#define OMAP5_UART5_BASE 0x48066000 +#define OMAP5_UART6_BASE 0x48068000 + +/* External port on Zoom2/3 */ +#define ZOOM_UART_BASE 0x10000000 +#define ZOOM_UART_VIRT 0xfa400000 + +#define OMAP_PORT_SHIFT 2 +#define ZOOM_PORT_SHIFT 1 + +#define OMAP24XX_BASE_BAUD (48000000/16) + +/* + * DEBUG_LL port encoding stored into the UART1 scratchpad register by + * decomp_setup in uncompress.h + */ +#define OMAP2UART1 21 +#define OMAP2UART2 22 +#define OMAP2UART3 23 +#define OMAP3UART1 OMAP2UART1 +#define OMAP3UART2 OMAP2UART2 +#define OMAP3UART3 33 +#define OMAP3UART4 34 /* Only on 36xx */ +#define OMAP4UART1 OMAP2UART1 +#define OMAP4UART2 OMAP2UART2 +#define OMAP4UART3 43 +#define OMAP4UART4 44 +#define TI81XXUART1 81 +#define TI81XXUART2 82 +#define TI81XXUART3 83 +#define AM33XXUART1 84 +#define OMAP5UART3 OMAP4UART3 +#define OMAP5UART4 OMAP4UART4 +#define ZOOM_UART 95 /* Only on zoom2/3 */ + +#ifndef __ASSEMBLER__ + +struct omap_board_data; +struct omap_uart_port_info; + +extern void omap_serial_init(void); +extern void omap_serial_board_init(struct omap_uart_port_info *platform_data); +extern void omap_serial_init_port(struct omap_board_data *bdata, + struct omap_uart_port_info *platform_data); +#endif diff --git a/arch/arm/mach-omap2/include/mach/uncompress.h b/arch/arm/mach-omap2/include/mach/uncompress.h index 78e0557..8e3546d 100644 --- a/arch/arm/mach-omap2/include/mach/uncompress.h +++ b/arch/arm/mach-omap2/include/mach/uncompress.h @@ -1,5 +1,176 @@ /* - * arch/arm/mach-omap2/include/mach/uncompress.h + * arch/arm/plat-omap/include/mach/uncompress.h + * + * Serial port stubs for kernel decompress status messages + * + * Initially based on: + * linux-2.4.15-rmk1-dsplinux1.6/arch/arm/plat-omap/include/mach1510/uncompress.h + * Copyright (C) 2000 RidgeRun, Inc. + * Author: Greg Lonnon <glonnon@ridgerun.com> + * + * Rewritten by: + * Author: <source@mvista.com> + * 2004 (c) MontaVista Software, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. */ -#include <plat/uncompress.h> +#include <linux/types.h> +#include <linux/serial_reg.h> + +#include <asm/memory.h> +#include <asm/mach-types.h> + +#include <mach/serial.h> + +#define MDR1_MODE_MASK 0x07 + +volatile u8 *uart_base; +int uart_shift; + +/* + * Store the DEBUG_LL uart number into memory. + * See also debug-macro.S, and serial.c for related code. + */ +static void set_omap_uart_info(unsigned char port) +{ + /* + * Get address of some.bss variable and round it down + * a la CONFIG_AUTO_ZRELADDR. + */ + u32 ram_start = (u32)&uart_shift & 0xf8000000; + u32 *uart_info = (u32 *)(ram_start + OMAP_UART_INFO_OFS); + *uart_info = port; +} + +static void putc(int c) +{ + if (!uart_base) + return; + + /* Check for UART 16x mode */ + if ((uart_base[UART_OMAP_MDR1 << uart_shift] & MDR1_MODE_MASK) != 0) + return; + + while (!(uart_base[UART_LSR << uart_shift] & UART_LSR_THRE)) + barrier(); + uart_base[UART_TX << uart_shift] = c; +} + +static inline void flush(void) +{ +} + +/* + * Macros to configure UART1 and debug UART + */ +#define _DEBUG_LL_ENTRY(mach, dbg_uart, dbg_shft, dbg_id) \ + if (machine_is_##mach()) { \ + uart_base = (volatile u8 *)(dbg_uart); \ + uart_shift = (dbg_shft); \ + port = (dbg_id); \ + set_omap_uart_info(port); \ + break; \ + } + +#define DEBUG_LL_OMAP2(p, mach) \ + _DEBUG_LL_ENTRY(mach, OMAP2_UART##p##_BASE, OMAP_PORT_SHIFT, \ + OMAP2UART##p) + +#define DEBUG_LL_OMAP3(p, mach) \ + _DEBUG_LL_ENTRY(mach, OMAP3_UART##p##_BASE, OMAP_PORT_SHIFT, \ + OMAP3UART##p) + +#define DEBUG_LL_OMAP4(p, mach) \ + _DEBUG_LL_ENTRY(mach, OMAP4_UART##p##_BASE, OMAP_PORT_SHIFT, \ + OMAP4UART##p) + +#define DEBUG_LL_OMAP5(p, mach) \ + _DEBUG_LL_ENTRY(mach, OMAP5_UART##p##_BASE, OMAP_PORT_SHIFT, \ + OMAP5UART##p) +/* Zoom2/3 shift is different for UART1 and external port */ +#define DEBUG_LL_ZOOM(mach) \ + _DEBUG_LL_ENTRY(mach, ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART) + +#define DEBUG_LL_TI81XX(p, mach) \ + _DEBUG_LL_ENTRY(mach, TI81XX_UART##p##_BASE, OMAP_PORT_SHIFT, \ + TI81XXUART##p) + +#define DEBUG_LL_AM33XX(p, mach) \ + _DEBUG_LL_ENTRY(mach, AM33XX_UART##p##_BASE, OMAP_PORT_SHIFT, \ + AM33XXUART##p) + +static inline void arch_decomp_setup(void) +{ + int port = 0; + + /* + * Initialize the port based on the machine ID from the bootloader. + * Note that we're using macros here instead of switch statement + * as machine_is functions are optimized out for the boards that + * are not selected. + */ + do { + /* omap2 based boards using UART1 */ + DEBUG_LL_OMAP2(1, omap_2430sdp); + DEBUG_LL_OMAP2(1, omap_apollon); + DEBUG_LL_OMAP2(1, omap_h4); + + /* omap2 based boards using UART3 */ + DEBUG_LL_OMAP2(3, nokia_n800); + DEBUG_LL_OMAP2(3, nokia_n810); + DEBUG_LL_OMAP2(3, nokia_n810_wimax); + + /* omap3 based boards using UART1 */ + DEBUG_LL_OMAP2(1, omap3evm); + DEBUG_LL_OMAP3(1, omap_3430sdp); + DEBUG_LL_OMAP3(1, omap_3630sdp); + DEBUG_LL_OMAP3(1, omap3530_lv_som); + DEBUG_LL_OMAP3(1, omap3_torpedo); + + /* omap3 based boards using UART3 */ + DEBUG_LL_OMAP3(3, cm_t35); + DEBUG_LL_OMAP3(3, cm_t3517); + DEBUG_LL_OMAP3(3, cm_t3730); + DEBUG_LL_OMAP3(3, craneboard); + DEBUG_LL_OMAP3(3, devkit8000); + DEBUG_LL_OMAP3(3, igep0020); + DEBUG_LL_OMAP3(3, igep0030); + DEBUG_LL_OMAP3(3, nokia_rm680); + DEBUG_LL_OMAP3(3, nokia_rm696); + DEBUG_LL_OMAP3(3, nokia_rx51); + DEBUG_LL_OMAP3(3, omap3517evm); + DEBUG_LL_OMAP3(3, omap3_beagle); + DEBUG_LL_OMAP3(3, omap3_pandora); + DEBUG_LL_OMAP3(3, omap_ldp); + DEBUG_LL_OMAP3(3, overo); + DEBUG_LL_OMAP3(3, touchbook); + + /* omap4 based boards using UART3 */ + DEBUG_LL_OMAP4(3, omap_4430sdp); + DEBUG_LL_OMAP4(3, omap4_panda); + + /* omap5 based boards using UART3 */ + DEBUG_LL_OMAP5(3, omap5_sevm); + + /* zoom2/3 external uart */ + DEBUG_LL_ZOOM(omap_zoom2); + DEBUG_LL_ZOOM(omap_zoom3); + + /* TI8168 base boards using UART3 */ + DEBUG_LL_TI81XX(3, ti8168evm); + + /* TI8148 base boards using UART1 */ + DEBUG_LL_TI81XX(1, ti8148evm); + + /* AM33XX base boards using UART1 */ + DEBUG_LL_AM33XX(1, am335xevm); + } while (0); +} + +/* + * nothing to do + */ +#define arch_decomp_wdog() diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 4234d28..807b8d9 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -25,14 +25,9 @@ #include <asm/tlb.h> #include <asm/mach/map.h> -#include <plat/sram.h> -#include <plat/sdrc.h> -#include <plat/serial.h> -#include <plat/omap-pm.h> -#include <plat/omap_hwmod.h> -#include <plat/multi.h> -#include <plat/dma.h> +#include <plat-omap/dma-omap.h> +#include "omap_hwmod.h" #include "soc.h" #include "iomap.h" #include "voltage.h" @@ -43,6 +38,10 @@ #include "clock2xxx.h" #include "clock3xxx.h" #include "clock44xx.h" +#include "omap-pm.h" +#include "sdrc.h" +#include "serial.h" +#include "sram.h" /* * The machine specific code may provide the extra mapping besides the @@ -354,11 +353,6 @@ static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data) return omap_hwmod_set_postsetup_state(oh, *(u8 *)data); } -static void __init omap_common_init_early(void) -{ - omap_init_consistent_dma_size(); -} - static void __init omap_hwmod_init_postsetup(void) { u8 postsetup_state; @@ -379,7 +373,6 @@ void __init omap2420_init_early(void) { omap2_set_globals_242x(); omap2xxx_check_revision(); - omap_common_init_early(); omap2xxx_voltagedomains_init(); omap242x_powerdomains_init(); omap242x_clockdomains_init(); @@ -401,7 +394,6 @@ void __init omap2430_init_early(void) { omap2_set_globals_243x(); omap2xxx_check_revision(); - omap_common_init_early(); omap2xxx_voltagedomains_init(); omap243x_powerdomains_init(); omap243x_clockdomains_init(); @@ -428,7 +420,6 @@ void __init omap3_init_early(void) omap2_set_globals_3xxx(); omap3xxx_check_revision(); omap3xxx_check_features(); - omap_common_init_early(); omap3xxx_voltagedomains_init(); omap3xxx_powerdomains_init(); omap3xxx_clockdomains_init(); @@ -462,7 +453,6 @@ void __init ti81xx_init_early(void) omap2_set_globals_ti81xx(); omap3xxx_check_revision(); ti81xx_check_features(); - omap_common_init_early(); omap3xxx_voltagedomains_init(); omap3xxx_powerdomains_init(); omap3xxx_clockdomains_init(); @@ -520,7 +510,6 @@ void __init am33xx_init_early(void) omap2_set_globals_am33xx(); omap3xxx_check_revision(); ti81xx_check_features(); - omap_common_init_early(); am33xx_voltagedomains_init(); am33xx_powerdomains_init(); am33xx_clockdomains_init(); @@ -536,7 +525,6 @@ void __init omap4430_init_early(void) omap2_set_globals_443x(); omap4xxx_check_revision(); omap4xxx_check_features(); - omap_common_init_early(); omap44xx_voltagedomains_init(); omap44xx_powerdomains_init(); omap44xx_clockdomains_init(); @@ -558,7 +546,6 @@ void __init omap5_init_early(void) { omap2_set_globals_5xxx(); omap5xxx_check_revision(); - omap_common_init_early(); } #endif diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c deleted file mode 100644 index eefc379..0000000 --- a/arch/arm/mach-omap2/iommu2.c +++ /dev/null @@ -1,361 +0,0 @@ -/* - * omap iommu: omap2/3 architecture specific functions - * - * Copyright (C) 2008-2009 Nokia Corporation - * - * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>, - * Paul Mundt and Toshihiro Kobayashi - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/err.h> -#include <linux/device.h> -#include <linux/jiffies.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/stringify.h> - -#include <plat/iommu.h> - -/* - * omap2 architecture specific register bit definitions - */ -#define IOMMU_ARCH_VERSION 0x00000011 - -/* SYSCONF */ -#define MMU_SYS_IDLE_SHIFT 3 -#define MMU_SYS_IDLE_FORCE (0 << MMU_SYS_IDLE_SHIFT) -#define MMU_SYS_IDLE_NONE (1 << MMU_SYS_IDLE_SHIFT) -#define MMU_SYS_IDLE_SMART (2 << MMU_SYS_IDLE_SHIFT) -#define MMU_SYS_IDLE_MASK (3 << MMU_SYS_IDLE_SHIFT) - -#define MMU_SYS_SOFTRESET (1 << 1) -#define MMU_SYS_AUTOIDLE 1 - -/* SYSSTATUS */ -#define MMU_SYS_RESETDONE 1 - -/* IRQSTATUS & IRQENABLE */ -#define MMU_IRQ_MULTIHITFAULT (1 << 4) -#define MMU_IRQ_TABLEWALKFAULT (1 << 3) -#define MMU_IRQ_EMUMISS (1 << 2) -#define MMU_IRQ_TRANSLATIONFAULT (1 << 1) -#define MMU_IRQ_TLBMISS (1 << 0) - -#define __MMU_IRQ_FAULT \ - (MMU_IRQ_MULTIHITFAULT | MMU_IRQ_EMUMISS | MMU_IRQ_TRANSLATIONFAULT) -#define MMU_IRQ_MASK \ - (__MMU_IRQ_FAULT | MMU_IRQ_TABLEWALKFAULT | MMU_IRQ_TLBMISS) -#define MMU_IRQ_TWL_MASK (__MMU_IRQ_FAULT | MMU_IRQ_TABLEWALKFAULT) -#define MMU_IRQ_TLB_MISS_MASK (__MMU_IRQ_FAULT | MMU_IRQ_TLBMISS) - -/* MMU_CNTL */ -#define MMU_CNTL_SHIFT 1 -#define MMU_CNTL_MASK (7 << MMU_CNTL_SHIFT) -#define MMU_CNTL_EML_TLB (1 << 3) -#define MMU_CNTL_TWL_EN (1 << 2) -#define MMU_CNTL_MMU_EN (1 << 1) - -#define get_cam_va_mask(pgsz) \ - (((pgsz) == MMU_CAM_PGSZ_16M) ? 0xff000000 : \ - ((pgsz) == MMU_CAM_PGSZ_1M) ? 0xfff00000 : \ - ((pgsz) == MMU_CAM_PGSZ_64K) ? 0xffff0000 : \ - ((pgsz) == MMU_CAM_PGSZ_4K) ? 0xfffff000 : 0) - - -static void __iommu_set_twl(struct omap_iommu *obj, bool on) -{ - u32 l = iommu_read_reg(obj, MMU_CNTL); - - if (on) - iommu_write_reg(obj, MMU_IRQ_TWL_MASK, MMU_IRQENABLE); - else - iommu_write_reg(obj, MMU_IRQ_TLB_MISS_MASK, MMU_IRQENABLE); - - l &= ~MMU_CNTL_MASK; - if (on) - l |= (MMU_CNTL_MMU_EN | MMU_CNTL_TWL_EN); - else - l |= (MMU_CNTL_MMU_EN); - - iommu_write_reg(obj, l, MMU_CNTL); -} - - -static int omap2_iommu_enable(struct omap_iommu *obj) -{ - u32 l, pa; - unsigned long timeout; - - if (!obj->iopgd || !IS_ALIGNED((u32)obj->iopgd, SZ_16K)) - return -EINVAL; - - pa = virt_to_phys(obj->iopgd); - if (!IS_ALIGNED(pa, SZ_16K)) - return -EINVAL; - - iommu_write_reg(obj, MMU_SYS_SOFTRESET, MMU_SYSCONFIG); - - timeout = jiffies + msecs_to_jiffies(20); - do { - l = iommu_read_reg(obj, MMU_SYSSTATUS); - if (l & MMU_SYS_RESETDONE) - break; - } while (!time_after(jiffies, timeout)); - - if (!(l & MMU_SYS_RESETDONE)) { - dev_err(obj->dev, "can't take mmu out of reset\n"); - return -ENODEV; - } - - l = iommu_read_reg(obj, MMU_REVISION); - dev_info(obj->dev, "%s: version %d.%d\n", obj->name, - (l >> 4) & 0xf, l & 0xf); - - l = iommu_read_reg(obj, MMU_SYSCONFIG); - l &= ~MMU_SYS_IDLE_MASK; - l |= (MMU_SYS_IDLE_SMART | MMU_SYS_AUTOIDLE); - iommu_write_reg(obj, l, MMU_SYSCONFIG); - - iommu_write_reg(obj, pa, MMU_TTB); - - __iommu_set_twl(obj, true); - - return 0; -} - -static void omap2_iommu_disable(struct omap_iommu *obj) -{ - u32 l = iommu_read_reg(obj, MMU_CNTL); - - l &= ~MMU_CNTL_MASK; - iommu_write_reg(obj, l, MMU_CNTL); - iommu_write_reg(obj, MMU_SYS_IDLE_FORCE, MMU_SYSCONFIG); - - dev_dbg(obj->dev, "%s is shutting down\n", obj->name); -} - -static void omap2_iommu_set_twl(struct omap_iommu *obj, bool on) -{ - __iommu_set_twl(obj, false); -} - -static u32 omap2_iommu_fault_isr(struct omap_iommu *obj, u32 *ra) -{ - u32 stat, da; - u32 errs = 0; - - stat = iommu_read_reg(obj, MMU_IRQSTATUS); - stat &= MMU_IRQ_MASK; - if (!stat) { - *ra = 0; - return 0; - } - - da = iommu_read_reg(obj, MMU_FAULT_AD); - *ra = da; - - if (stat & MMU_IRQ_TLBMISS) - errs |= OMAP_IOMMU_ERR_TLB_MISS; - if (stat & MMU_IRQ_TRANSLATIONFAULT) - errs |= OMAP_IOMMU_ERR_TRANS_FAULT; - if (stat & MMU_IRQ_EMUMISS) - errs |= OMAP_IOMMU_ERR_EMU_MISS; - if (stat & MMU_IRQ_TABLEWALKFAULT) - errs |= OMAP_IOMMU_ERR_TBLWALK_FAULT; - if (stat & MMU_IRQ_MULTIHITFAULT) - errs |= OMAP_IOMMU_ERR_MULTIHIT_FAULT; - iommu_write_reg(obj, stat, MMU_IRQSTATUS); - - return errs; -} - -static void omap2_tlb_read_cr(struct omap_iommu *obj, struct cr_regs *cr) -{ - cr->cam = iommu_read_reg(obj, MMU_READ_CAM); - cr->ram = iommu_read_reg(obj, MMU_READ_RAM); -} - -static void omap2_tlb_load_cr(struct omap_iommu *obj, struct cr_regs *cr) -{ - iommu_write_reg(obj, cr->cam | MMU_CAM_V, MMU_CAM); - iommu_write_reg(obj, cr->ram, MMU_RAM); -} - -static u32 omap2_cr_to_virt(struct cr_regs *cr) -{ - u32 page_size = cr->cam & MMU_CAM_PGSZ_MASK; - u32 mask = get_cam_va_mask(cr->cam & page_size); - - return cr->cam & mask; -} - -static struct cr_regs *omap2_alloc_cr(struct omap_iommu *obj, - struct iotlb_entry *e) -{ - struct cr_regs *cr; - - if (e->da & ~(get_cam_va_mask(e->pgsz))) { - dev_err(obj->dev, "%s:\twrong alignment: %08x\n", __func__, - e->da); - return ERR_PTR(-EINVAL); - } - - cr = kmalloc(sizeof(*cr), GFP_KERNEL); - if (!cr) - return ERR_PTR(-ENOMEM); - - cr->cam = (e->da & MMU_CAM_VATAG_MASK) | e->prsvd | e->pgsz | e->valid; - cr->ram = e->pa | e->endian | e->elsz | e->mixed; - - return cr; -} - -static inline int omap2_cr_valid(struct cr_regs *cr) -{ - return cr->cam & MMU_CAM_V; -} - -static u32 omap2_get_pte_attr(struct iotlb_entry *e) -{ - u32 attr; - - attr = e->mixed << 5; - attr |= e->endian; - attr |= e->elsz >> 3; - attr <<= (((e->pgsz == MMU_CAM_PGSZ_4K) || - (e->pgsz == MMU_CAM_PGSZ_64K)) ? 0 : 6); - return attr; -} - -static ssize_t -omap2_dump_cr(struct omap_iommu *obj, struct cr_regs *cr, char *buf) -{ - char *p = buf; - - /* FIXME: Need more detail analysis of cam/ram */ - p += sprintf(p, "%08x %08x %01x\n", cr->cam, cr->ram, - (cr->cam & MMU_CAM_P) ? 1 : 0); - - return p - buf; -} - -#define pr_reg(name) \ - do { \ - ssize_t bytes; \ - const char *str = "%20s: %08x\n"; \ - const int maxcol = 32; \ - bytes = snprintf(p, maxcol, str, __stringify(name), \ - iommu_read_reg(obj, MMU_##name)); \ - p += bytes; \ - len -= bytes; \ - if (len < maxcol) \ - goto out; \ - } while (0) - -static ssize_t -omap2_iommu_dump_ctx(struct omap_iommu *obj, char *buf, ssize_t len) -{ - char *p = buf; - - pr_reg(REVISION); - pr_reg(SYSCONFIG); - pr_reg(SYSSTATUS); - pr_reg(IRQSTATUS); - pr_reg(IRQENABLE); - pr_reg(WALKING_ST); - pr_reg(CNTL); - pr_reg(FAULT_AD); - pr_reg(TTB); - pr_reg(LOCK); - pr_reg(LD_TLB); - pr_reg(CAM); - pr_reg(RAM); - pr_reg(GFLUSH); - pr_reg(FLUSH_ENTRY); - pr_reg(READ_CAM); - pr_reg(READ_RAM); - pr_reg(EMU_FAULT_AD); -out: - return p - buf; -} - -static void omap2_iommu_save_ctx(struct omap_iommu *obj) -{ - int i; - u32 *p = obj->ctx; - - for (i = 0; i < (MMU_REG_SIZE / sizeof(u32)); i++) { - p[i] = iommu_read_reg(obj, i * sizeof(u32)); - dev_dbg(obj->dev, "%s\t[%02d] %08x\n", __func__, i, p[i]); - } - - BUG_ON(p[0] != IOMMU_ARCH_VERSION); -} - -static void omap2_iommu_restore_ctx(struct omap_iommu *obj) -{ - int i; - u32 *p = obj->ctx; - - for (i = 0; i < (MMU_REG_SIZE / sizeof(u32)); i++) { - iommu_write_reg(obj, p[i], i * sizeof(u32)); - dev_dbg(obj->dev, "%s\t[%02d] %08x\n", __func__, i, p[i]); - } - - BUG_ON(p[0] != IOMMU_ARCH_VERSION); -} - -static void omap2_cr_to_e(struct cr_regs *cr, struct iotlb_entry *e) -{ - e->da = cr->cam & MMU_CAM_VATAG_MASK; - e->pa = cr->ram & MMU_RAM_PADDR_MASK; - e->valid = cr->cam & MMU_CAM_V; - e->pgsz = cr->cam & MMU_CAM_PGSZ_MASK; - e->endian = cr->ram & MMU_RAM_ENDIAN_MASK; - e->elsz = cr->ram & MMU_RAM_ELSZ_MASK; - e->mixed = cr->ram & MMU_RAM_MIXED; -} - -static const struct iommu_functions omap2_iommu_ops = { - .version = IOMMU_ARCH_VERSION, - - .enable = omap2_iommu_enable, - .disable = omap2_iommu_disable, - .set_twl = omap2_iommu_set_twl, - .fault_isr = omap2_iommu_fault_isr, - - .tlb_read_cr = omap2_tlb_read_cr, - .tlb_load_cr = omap2_tlb_load_cr, - - .cr_to_e = omap2_cr_to_e, - .cr_to_virt = omap2_cr_to_virt, - .alloc_cr = omap2_alloc_cr, - .cr_valid = omap2_cr_valid, - .dump_cr = omap2_dump_cr, - - .get_pte_attr = omap2_get_pte_attr, - - .save_ctx = omap2_iommu_save_ctx, - .restore_ctx = omap2_iommu_restore_ctx, - .dump_ctx = omap2_iommu_dump_ctx, -}; - -static int __init omap2_iommu_init(void) -{ - return omap_install_iommu_arch(&omap2_iommu_ops); -} -module_init(omap2_iommu_init); - -static void __exit omap2_iommu_exit(void) -{ - omap_uninstall_iommu_arch(&omap2_iommu_ops); -} -module_exit(omap2_iommu_exit); - -MODULE_AUTHOR("Hiroshi DOYU, Paul Mundt and Toshihiro Kobayashi"); -MODULE_DESCRIPTION("omap iommu: omap2/3 architecture specific functions"); -MODULE_LICENSE("GPL v2"); diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c index 37f8f94..a106c75 100644 --- a/arch/arm/mach-omap2/mcbsp.c +++ b/arch/arm/mach-omap2/mcbsp.c @@ -19,11 +19,12 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/platform_data/asoc-ti-mcbsp.h> - -#include <plat/dma.h> -#include <plat/omap_device.h> #include <linux/pm_runtime.h> +#include <plat-omap/dma-omap.h> + +#include "omap_device.h" + /* * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle. * Sidetone needs non-gated ICLK and sidetone autoidle is broken. diff --git a/arch/arm/mach-omap2/mmc.h b/arch/arm/mach-omap2/mmc.h new file mode 100644 index 0000000..0cd4b08 --- /dev/null +++ b/arch/arm/mach-omap2/mmc.h @@ -0,0 +1,23 @@ +#include <linux/mmc/host.h> +#include <linux/platform_data/mmc-omap.h> + +#define OMAP24XX_NR_MMC 2 +#define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE +#define OMAP2_MMC1_BASE 0x4809c000 + +#define OMAP4_MMC_REG_OFFSET 0x100 + +#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) +void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data); +#else +static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data) +{ +} +#endif + +struct omap_hwmod; +int omap_msdi_reset(struct omap_hwmod *oh); + +/* called from board-specific card detection service routine */ +extern void omap_mmc_notify_cover_event(struct device *dev, int slot, + int is_closed); diff --git a/arch/arm/mach-omap2/msdi.c b/arch/arm/mach-omap2/msdi.c index 9e57b4a..627e97e 100644 --- a/arch/arm/mach-omap2/msdi.c +++ b/arch/arm/mach-omap2/msdi.c @@ -25,13 +25,12 @@ #include <linux/err.h> #include <linux/platform_data/gpio-omap.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> -#include <plat/mmc.h> - #include "common.h" #include "control.h" +#include "omap_hwmod.h" +#include "omap_device.h" #include "mux.h" +#include "mmc.h" /* * MSDI_CON_OFFSET: offset in bytes of the MSDI IP block's CON register diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index 701e17c..2612634 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -36,8 +36,9 @@ #include <linux/interrupt.h> -#include <plat/omap_hwmod.h> +#include "omap_hwmod.h" +#include "soc.h" #include "control.h" #include "mux.h" #include "prm.h" diff --git a/arch/arm/mach-omap2/omap-iommu.c b/arch/arm/mach-omap2/omap-iommu.c index df298d4..a6a4ff8 100644 --- a/arch/arm/mach-omap2/omap-iommu.c +++ b/arch/arm/mach-omap2/omap-iommu.c @@ -13,7 +13,7 @@ #include <linux/module.h> #include <linux/platform_device.h> -#include <plat/iommu.h> +#include <linux/platform_data/iommu-omap.h> #include "soc.h" #include "common.h" diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c index c8bc3ad..aac46bf 100644 --- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c +++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c @@ -50,6 +50,7 @@ #include <asm/suspend.h> #include <asm/hardware/cache-l2x0.h> +#include "soc.h" #include "common.h" #include "omap44xx.h" #include "omap4-sar-layout.h" diff --git a/arch/arm/mach-omap2/omap-pm-noop.c b/arch/arm/mach-omap2/omap-pm-noop.c new file mode 100644 index 0000000..6a3be2b --- /dev/null +++ b/arch/arm/mach-omap2/omap-pm-noop.c @@ -0,0 +1,371 @@ +/* + * omap-pm-noop.c - OMAP power management interface - dummy version + * + * This code implements the OMAP power management interface to + * drivers, CPUIdle, CPUFreq, and DSP Bridge. It is strictly for + * debug/demonstration use, as it does nothing but printk() whenever a + * function is called (when DEBUG is defined, below) + * + * Copyright (C) 2008-2009 Texas Instruments, Inc. + * Copyright (C) 2008-2009 Nokia Corporation + * Paul Walmsley + * + * Interface developed by (in alphabetical order): + * Karthik Dasu, Tony Lindgren, Rajendra Nayak, Sakari Poussa, Veeramanikandan + * Raju, Anand Sawant, Igor Stoppa, Paul Walmsley, Richard Woodruff + */ + +#undef DEBUG + +#include <linux/init.h> +#include <linux/cpufreq.h> +#include <linux/device.h> +#include <linux/platform_device.h> + +#include "omap_device.h" +#include "omap-pm.h" + +static bool off_mode_enabled; +static int dummy_context_loss_counter; + +/* + * Device-driver-originated constraints (via board-*.c files) + */ + +int omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t) +{ + if (!dev || t < -1) { + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; + } + + if (t == -1) + pr_debug("OMAP PM: remove max MPU wakeup latency constraint: dev %s\n", + dev_name(dev)); + else + pr_debug("OMAP PM: add max MPU wakeup latency constraint: dev %s, t = %ld usec\n", + dev_name(dev), t); + + /* + * For current Linux, this needs to map the MPU to a + * powerdomain, then go through the list of current max lat + * constraints on the MPU and find the smallest. If + * the latency constraint has changed, the code should + * recompute the state to enter for the next powerdomain + * state. + * + * TI CDP code can call constraint_set here. + */ + + return 0; +} + +int omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r) +{ + if (!dev || (agent_id != OCP_INITIATOR_AGENT && + agent_id != OCP_TARGET_AGENT)) { + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; + } + + if (r == 0) + pr_debug("OMAP PM: remove min bus tput constraint: dev %s for agent_id %d\n", + dev_name(dev), agent_id); + else + pr_debug("OMAP PM: add min bus tput constraint: dev %s for agent_id %d: rate %ld KiB\n", + dev_name(dev), agent_id, r); + + /* + * This code should model the interconnect and compute the + * required clock frequency, convert that to a VDD2 OPP ID, then + * set the VDD2 OPP appropriately. + * + * TI CDP code can call constraint_set here on the VDD2 OPP. + */ + + return 0; +} + +int omap_pm_set_max_dev_wakeup_lat(struct device *req_dev, struct device *dev, + long t) +{ + if (!req_dev || !dev || t < -1) { + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; + } + + if (t == -1) + pr_debug("OMAP PM: remove max device latency constraint: dev %s\n", + dev_name(dev)); + else + pr_debug("OMAP PM: add max device latency constraint: dev %s, t = %ld usec\n", + dev_name(dev), t); + + /* + * For current Linux, this needs to map the device to a + * powerdomain, then go through the list of current max lat + * constraints on that powerdomain and find the smallest. If + * the latency constraint has changed, the code should + * recompute the state to enter for the next powerdomain + * state. Conceivably, this code should also determine + * whether to actually disable the device clocks or not, + * depending on how long it takes to re-enable the clocks. + * + * TI CDP code can call constraint_set here. + */ + + return 0; +} + +int omap_pm_set_max_sdma_lat(struct device *dev, long t) +{ + if (!dev || t < -1) { + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; + } + + if (t == -1) + pr_debug("OMAP PM: remove max DMA latency constraint: dev %s\n", + dev_name(dev)); + else + pr_debug("OMAP PM: add max DMA latency constraint: dev %s, t = %ld usec\n", + dev_name(dev), t); + + /* + * For current Linux PM QOS params, this code should scan the + * list of maximum CPU and DMA latencies and select the + * smallest, then set cpu_dma_latency pm_qos_param + * accordingly. + * + * For future Linux PM QOS params, with separate CPU and DMA + * latency params, this code should just set the dma_latency param. + * + * TI CDP code can call constraint_set here. + */ + + return 0; +} + +int omap_pm_set_min_clk_rate(struct device *dev, struct clk *c, long r) +{ + if (!dev || !c || r < 0) { + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; + } + + if (r == 0) + pr_debug("OMAP PM: remove min clk rate constraint: dev %s\n", + dev_name(dev)); + else + pr_debug("OMAP PM: add min clk rate constraint: dev %s, rate = %ld Hz\n", + dev_name(dev), r); + + /* + * Code in a real implementation should keep track of these + * constraints on the clock, and determine the highest minimum + * clock rate. It should iterate over each OPP and determine + * whether the OPP will result in a clock rate that would + * satisfy this constraint (and any other PM constraint in effect + * at that time). Once it finds the lowest-voltage OPP that + * meets those conditions, it should switch to it, or return + * an error if the code is not capable of doing so. + */ + + return 0; +} + +/* + * DSP Bridge-specific constraints + */ + +const struct omap_opp *omap_pm_dsp_get_opp_table(void) +{ + pr_debug("OMAP PM: DSP request for OPP table\n"); + + /* + * Return DSP frequency table here: The final item in the + * array should have .rate = .opp_id = 0. + */ + + return NULL; +} + +void omap_pm_dsp_set_min_opp(u8 opp_id) +{ + if (opp_id == 0) { + WARN_ON(1); + return; + } + + pr_debug("OMAP PM: DSP requests minimum VDD1 OPP to be %d\n", opp_id); + + /* + * + * For l-o dev tree, our VDD1 clk is keyed on OPP ID, so we + * can just test to see which is higher, the CPU's desired OPP + * ID or the DSP's desired OPP ID, and use whichever is + * highest. + * + * In CDP12.14+, the VDD1 OPP custom clock that controls the DSP + * rate is keyed on MPU speed, not the OPP ID. So we need to + * map the OPP ID to the MPU speed for use with clk_set_rate() + * if it is higher than the current OPP clock rate. + * + */ +} + + +u8 omap_pm_dsp_get_opp(void) +{ + pr_debug("OMAP PM: DSP requests current DSP OPP ID\n"); + + /* + * For l-o dev tree, call clk_get_rate() on VDD1 OPP clock + * + * CDP12.14+: + * Call clk_get_rate() on the OPP custom clock, map that to an + * OPP ID using the tables defined in board-*.c/chip-*.c files. + */ + + return 0; +} + +/* + * CPUFreq-originated constraint + * + * In the future, this should be handled by custom OPP clocktype + * functions. + */ + +struct cpufreq_frequency_table **omap_pm_cpu_get_freq_table(void) +{ + pr_debug("OMAP PM: CPUFreq request for frequency table\n"); + + /* + * Return CPUFreq frequency table here: loop over + * all VDD1 clkrates, pull out the mpu_ck frequencies, build + * table + */ + + return NULL; +} + +void omap_pm_cpu_set_freq(unsigned long f) +{ + if (f == 0) { + WARN_ON(1); + return; + } + + pr_debug("OMAP PM: CPUFreq requests CPU frequency to be set to %lu\n", + f); + + /* + * For l-o dev tree, determine whether MPU freq or DSP OPP id + * freq is higher. Find the OPP ID corresponding to the + * higher frequency. Call clk_round_rate() and clk_set_rate() + * on the OPP custom clock. + * + * CDP should just be able to set the VDD1 OPP clock rate here. + */ +} + +unsigned long omap_pm_cpu_get_freq(void) +{ + pr_debug("OMAP PM: CPUFreq requests current CPU frequency\n"); + + /* + * Call clk_get_rate() on the mpu_ck. + */ + + return 0; +} + +/** + * omap_pm_enable_off_mode - notify OMAP PM that off-mode is enabled + * + * Intended for use only by OMAP PM core code to notify this layer + * that off mode has been enabled. + */ +void omap_pm_enable_off_mode(void) +{ + off_mode_enabled = true; +} + +/** + * omap_pm_disable_off_mode - notify OMAP PM that off-mode is disabled + * + * Intended for use only by OMAP PM core code to notify this layer + * that off mode has been disabled. + */ +void omap_pm_disable_off_mode(void) +{ + off_mode_enabled = false; +} + +/* + * Device context loss tracking + */ + +#ifdef CONFIG_ARCH_OMAP2PLUS + +int omap_pm_get_dev_context_loss_count(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + int count; + + if (WARN_ON(!dev)) + return -ENODEV; + + if (dev->pm_domain == &omap_device_pm_domain) { + count = omap_device_get_context_loss_count(pdev); + } else { + WARN_ONCE(off_mode_enabled, "omap_pm: using dummy context loss counter; device %s should be converted to omap_device", + dev_name(dev)); + + count = dummy_context_loss_counter; + + if (off_mode_enabled) { + count++; + /* + * Context loss count has to be a non-negative value. + * Clear the sign bit to get a value range from 0 to + * INT_MAX. + */ + count &= INT_MAX; + dummy_context_loss_counter = count; + } + } + + pr_debug("OMAP PM: context loss count for dev %s = %d\n", + dev_name(dev), count); + + return count; +} + +#else + +int omap_pm_get_dev_context_loss_count(struct device *dev) +{ + return dummy_context_loss_counter; +} + +#endif + +/* Should be called before clk framework init */ +int __init omap_pm_if_early_init(void) +{ + return 0; +} + +/* Must be called after clock framework is initialized */ +int __init omap_pm_if_init(void) +{ + return 0; +} + +void omap_pm_if_exit(void) +{ + /* Deallocate CPUFreq frequency table here */ +} + diff --git a/arch/arm/mach-omap2/omap-pm.h b/arch/arm/mach-omap2/omap-pm.h new file mode 100644 index 0000000..67faa7b --- /dev/null +++ b/arch/arm/mach-omap2/omap-pm.h @@ -0,0 +1,352 @@ +/* + * omap-pm.h - OMAP power management interface + * + * Copyright (C) 2008-2010 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * Paul Walmsley + * + * Interface developed by (in alphabetical order): Karthik Dasu, Jouni + * Högander, Tony Lindgren, Rajendra Nayak, Sakari Poussa, + * Veeramanikandan Raju, Anand Sawant, Igor Stoppa, Paul Walmsley, + * Richard Woodruff + */ + +#ifndef ASM_ARM_ARCH_OMAP_OMAP_PM_H +#define ASM_ARM_ARCH_OMAP_OMAP_PM_H + +#include <linux/device.h> +#include <linux/cpufreq.h> +#include <linux/clk.h> +#include <linux/opp.h> + +/* + * agent_id values for use with omap_pm_set_min_bus_tput(): + * + * OCP_INITIATOR_AGENT is only valid for devices that can act as + * initiators -- it represents the device's L3 interconnect + * connection. OCP_TARGET_AGENT represents the device's L4 + * interconnect connection. + */ +#define OCP_TARGET_AGENT 1 +#define OCP_INITIATOR_AGENT 2 + +/** + * omap_pm_if_early_init - OMAP PM init code called before clock fw init + * @mpu_opp_table: array ptr to struct omap_opp for MPU + * @dsp_opp_table: array ptr to struct omap_opp for DSP + * @l3_opp_table : array ptr to struct omap_opp for CORE + * + * Initialize anything that must be configured before the clock + * framework starts. The "_if_" is to avoid name collisions with the + * PM idle-loop code. + */ +int __init omap_pm_if_early_init(void); + +/** + * omap_pm_if_init - OMAP PM init code called after clock fw init + * + * The main initialization code. OPP tables are passed in here. The + * "_if_" is to avoid name collisions with the PM idle-loop code. + */ +int __init omap_pm_if_init(void); + +/** + * omap_pm_if_exit - OMAP PM exit code + * + * Exit code; currently unused. The "_if_" is to avoid name + * collisions with the PM idle-loop code. + */ +void omap_pm_if_exit(void); + +/* + * Device-driver-originated constraints (via board-*.c files, platform_data) + */ + + +/** + * omap_pm_set_max_mpu_wakeup_lat - set the maximum MPU wakeup latency + * @dev: struct device * requesting the constraint + * @t: maximum MPU wakeup latency in microseconds + * + * Request that the maximum interrupt latency for the MPU to be no + * greater than @t microseconds. "Interrupt latency" in this case is + * defined as the elapsed time from the occurrence of a hardware or + * timer interrupt to the time when the device driver's interrupt + * service routine has been entered by the MPU. + * + * It is intended that underlying PM code will use this information to + * determine what power state to put the MPU powerdomain into, and + * possibly the CORE powerdomain as well, since interrupt handling + * code currently runs from SDRAM. Advanced PM or board*.c code may + * also configure interrupt controller priorities, OCP bus priorities, + * CPU speed(s), etc. + * + * This function will not affect device wakeup latency, e.g., time + * elapsed from when a device driver enables a hardware device with + * clk_enable(), to when the device is ready for register access or + * other use. To control this device wakeup latency, use + * omap_pm_set_max_dev_wakeup_lat() + * + * Multiple calls to omap_pm_set_max_mpu_wakeup_lat() will replace the + * previous t value. To remove the latency target for the MPU, call + * with t = -1. + * + * XXX This constraint will be deprecated soon in favor of the more + * general omap_pm_set_max_dev_wakeup_lat() + * + * Returns -EINVAL for an invalid argument, -ERANGE if the constraint + * is not satisfiable, or 0 upon success. + */ +int omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t); + + +/** + * omap_pm_set_min_bus_tput - set minimum bus throughput needed by device + * @dev: struct device * requesting the constraint + * @tbus_id: interconnect to operate on (OCP_{INITIATOR,TARGET}_AGENT) + * @r: minimum throughput (in KiB/s) + * + * Request that the minimum data throughput on the OCP interconnect + * attached to device @dev interconnect agent @tbus_id be no less + * than @r KiB/s. + * + * It is expected that the OMAP PM or bus code will use this + * information to set the interconnect clock to run at the lowest + * possible speed that satisfies all current system users. The PM or + * bus code will adjust the estimate based on its model of the bus, so + * device driver authors should attempt to specify an accurate + * quantity for their device use case, and let the PM or bus code + * overestimate the numbers as necessary to handle request/response + * latency, other competing users on the system, etc. On OMAP2/3, if + * a driver requests a minimum L4 interconnect speed constraint, the + * code will also need to add an minimum L3 interconnect speed + * constraint, + * + * Multiple calls to omap_pm_set_min_bus_tput() will replace the + * previous rate value for this device. To remove the interconnect + * throughput restriction for this device, call with r = 0. + * + * Returns -EINVAL for an invalid argument, -ERANGE if the constraint + * is not satisfiable, or 0 upon success. + */ +int omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r); + + +/** + * omap_pm_set_max_dev_wakeup_lat - set the maximum device enable latency + * @req_dev: struct device * requesting the constraint, or NULL if none + * @dev: struct device * to set the constraint one + * @t: maximum device wakeup latency in microseconds + * + * Request that the maximum amount of time necessary for a device @dev + * to become accessible after its clocks are enabled should be no + * greater than @t microseconds. Specifically, this represents the + * time from when a device driver enables device clocks with + * clk_enable(), to when the register reads and writes on the device + * will succeed. This function should be called before clk_disable() + * is called, since the power state transition decision may be made + * during clk_disable(). + * + * It is intended that underlying PM code will use this information to + * determine what power state to put the powerdomain enclosing this + * device into. + * + * Multiple calls to omap_pm_set_max_dev_wakeup_lat() will replace the + * previous wakeup latency values for this device. To remove the + * wakeup latency restriction for this device, call with t = -1. + * + * Returns -EINVAL for an invalid argument, -ERANGE if the constraint + * is not satisfiable, or 0 upon success. + */ +int omap_pm_set_max_dev_wakeup_lat(struct device *req_dev, struct device *dev, + long t); + + +/** + * omap_pm_set_max_sdma_lat - set the maximum system DMA transfer start latency + * @dev: struct device * + * @t: maximum DMA transfer start latency in microseconds + * + * Request that the maximum system DMA transfer start latency for this + * device 'dev' should be no greater than 't' microseconds. "DMA + * transfer start latency" here is defined as the elapsed time from + * when a device (e.g., McBSP) requests that a system DMA transfer + * start or continue, to the time at which data starts to flow into + * that device from the system DMA controller. + * + * It is intended that underlying PM code will use this information to + * determine what power state to put the CORE powerdomain into. + * + * Since system DMA transfers may not involve the MPU, this function + * will not affect MPU wakeup latency. Use set_max_cpu_lat() to do + * so. Similarly, this function will not affect device wakeup latency + * -- use set_max_dev_wakeup_lat() to affect that. + * + * Multiple calls to set_max_sdma_lat() will replace the previous t + * value for this device. To remove the maximum DMA latency for this + * device, call with t = -1. + * + * Returns -EINVAL for an invalid argument, -ERANGE if the constraint + * is not satisfiable, or 0 upon success. + */ +int omap_pm_set_max_sdma_lat(struct device *dev, long t); + + +/** + * omap_pm_set_min_clk_rate - set minimum clock rate requested by @dev + * @dev: struct device * requesting the constraint + * @clk: struct clk * to set the minimum rate constraint on + * @r: minimum rate in Hz + * + * Request that the minimum clock rate on the device @dev's clk @clk + * be no less than @r Hz. + * + * It is expected that the OMAP PM code will use this information to + * find an OPP or clock setting that will satisfy this clock rate + * constraint, along with any other applicable system constraints on + * the clock rate or corresponding voltage, etc. + * + * omap_pm_set_min_clk_rate() differs from the clock code's + * clk_set_rate() in that it considers other constraints before taking + * any hardware action, and may change a system OPP rather than just a + * clock rate. clk_set_rate() is intended to be a low-level + * interface. + * + * omap_pm_set_min_clk_rate() is easily open to abuse. A better API + * would be something like "omap_pm_set_min_dev_performance()"; + * however, there is no easily-generalizable concept of performance + * that applies to all devices. Only a device (and possibly the + * device subsystem) has both the subsystem-specific knowledge, and + * the hardware IP block-specific knowledge, to translate a constraint + * on "touchscreen sampling accuracy" or "number of pixels or polygons + * rendered per second" to a clock rate. This translation can be + * dependent on the hardware IP block's revision, or firmware version, + * and the driver is the only code on the system that has this + * information and can know how to translate that into a clock rate. + * + * The intended use-case for this function is for userspace or other + * kernel code to communicate a particular performance requirement to + * a subsystem; then for the subsystem to communicate that requirement + * to something that is meaningful to the device driver; then for the + * device driver to convert that requirement to a clock rate, and to + * then call omap_pm_set_min_clk_rate(). + * + * Users of this function (such as device drivers) should not simply + * call this function with some high clock rate to ensure "high + * performance." Rather, the device driver should take a performance + * constraint from its subsystem, such as "render at least X polygons + * per second," and use some formula or table to convert that into a + * clock rate constraint given the hardware type and hardware + * revision. Device drivers or subsystems should not assume that they + * know how to make a power/performance tradeoff - some device use + * cases may tolerate a lower-fidelity device function for lower power + * consumption; others may demand a higher-fidelity device function, + * no matter what the power consumption. + * + * Multiple calls to omap_pm_set_min_clk_rate() will replace the + * previous rate value for the device @dev. To remove the minimum clock + * rate constraint for the device, call with r = 0. + * + * Returns -EINVAL for an invalid argument, -ERANGE if the constraint + * is not satisfiable, or 0 upon success. + */ +int omap_pm_set_min_clk_rate(struct device *dev, struct clk *c, long r); + +/* + * DSP Bridge-specific constraints + */ + +/** + * omap_pm_dsp_get_opp_table - get OPP->DSP clock frequency table + * + * Intended for use by DSPBridge. Returns an array of OPP->DSP clock + * frequency entries. The final item in the array should have .rate = + * .opp_id = 0. + */ +const struct omap_opp *omap_pm_dsp_get_opp_table(void); + +/** + * omap_pm_dsp_set_min_opp - receive desired OPP target ID from DSP Bridge + * @opp_id: target DSP OPP ID + * + * Set a minimum OPP ID for the DSP. This is intended to be called + * only from the DSP Bridge MPU-side driver. Unfortunately, the only + * information that code receives from the DSP/BIOS load estimator is the + * target OPP ID; hence, this interface. No return value. + */ +void omap_pm_dsp_set_min_opp(u8 opp_id); + +/** + * omap_pm_dsp_get_opp - report the current DSP OPP ID + * + * Report the current OPP for the DSP. Since on OMAP3, the DSP and + * MPU share a single voltage domain, the OPP ID returned back may + * represent a higher DSP speed than the OPP requested via + * omap_pm_dsp_set_min_opp(). + * + * Returns the current VDD1 OPP ID, or 0 upon error. + */ +u8 omap_pm_dsp_get_opp(void); + + +/* + * CPUFreq-originated constraint + * + * In the future, this should be handled by custom OPP clocktype + * functions. + */ + +/** + * omap_pm_cpu_get_freq_table - return a cpufreq_frequency_table array ptr + * + * Provide a frequency table usable by CPUFreq for the current chip/board. + * Returns a pointer to a struct cpufreq_frequency_table array or NULL + * upon error. + */ +struct cpufreq_frequency_table **omap_pm_cpu_get_freq_table(void); + +/** + * omap_pm_cpu_set_freq - set the current minimum MPU frequency + * @f: MPU frequency in Hz + * + * Set the current minimum CPU frequency. The actual CPU frequency + * used could end up higher if the DSP requested a higher OPP. + * Intended to be called by plat-omap/cpu_omap.c:omap_target(). No + * return value. + */ +void omap_pm_cpu_set_freq(unsigned long f); + +/** + * omap_pm_cpu_get_freq - report the current CPU frequency + * + * Returns the current MPU frequency, or 0 upon error. + */ +unsigned long omap_pm_cpu_get_freq(void); + + +/* + * Device context loss tracking + */ + +/** + * omap_pm_get_dev_context_loss_count - return count of times dev has lost ctx + * @dev: struct device * + * + * This function returns the number of times that the device @dev has + * lost its internal context. This generally occurs on a powerdomain + * transition to OFF. Drivers use this as an optimization to avoid restoring + * context if the device hasn't lost it. To use, drivers should initially + * call this in their context save functions and store the result. Early in + * the driver's context restore function, the driver should call this function + * again, and compare the result to the stored counter. If they differ, the + * driver must restore device context. If the number of context losses + * exceeds the maximum positive integer, the function will wrap to 0 and + * continue counting. Returns the number of context losses for this device, + * or negative value upon error. + */ +int omap_pm_get_dev_context_loss_count(struct device *dev); + +void omap_pm_enable_off_mode(void); +void omap_pm_disable_off_mode(void); + +#endif diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c index e089e4d..b970440 100644 --- a/arch/arm/mach-omap2/omap-secure.c +++ b/arch/arm/mach-omap2/omap-secure.c @@ -18,7 +18,6 @@ #include <asm/cacheflush.h> #include <asm/memblock.h> -#include <plat/omap-secure.h> #include "omap-secure.h" static phys_addr_t omap_secure_memblock_base; diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h index c90a435..0e72917 100644 --- a/arch/arm/mach-omap2/omap-secure.h +++ b/arch/arm/mach-omap2/omap-secure.h @@ -52,6 +52,13 @@ extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2, u32 arg3, u32 arg4); extern u32 omap_smc2(u32 id, u32 falg, u32 pargs); extern phys_addr_t omap_secure_ram_mempool_base(void); +extern int omap_secure_ram_reserve_memblock(void); +#ifdef CONFIG_OMAP4_ERRATA_I688 +extern int omap_barrier_reserve_memblock(void); +#else +static inline void omap_barrier_reserve_memblock(void) +{ } +#endif #endif /* __ASSEMBLER__ */ #endif /* OMAP_ARCH_OMAP_SECURE_H */ diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c index 6f94b4e..eda316a 100644 --- a/arch/arm/mach-omap2/omap4-common.c +++ b/arch/arm/mach-omap2/omap4-common.c @@ -27,16 +27,14 @@ #include <asm/memblock.h> #include <asm/smp_twd.h> -#include <plat/sram.h> -#include <plat/omap-secure.h> -#include <plat/mmc.h> - #include "omap-wakeupgen.h" - #include "soc.h" #include "common.h" +#include "mmc.h" #include "hsmmc.h" #include "omap4-sar-layout.h" +#include "omap-secure.h" +#include "sram.h" #ifdef CONFIG_CACHE_L2X0 static void __iomem *l2cache_base; diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c new file mode 100644 index 0000000..0ef934f --- /dev/null +++ b/arch/arm/mach-omap2/omap_device.c @@ -0,0 +1,1277 @@ +/* + * omap_device implementation + * + * Copyright (C) 2009-2010 Nokia Corporation + * Paul Walmsley, Kevin Hilman + * + * Developed in collaboration with (alphabetical order): Benoit + * Cousson, Thara Gopinath, Tony Lindgren, Rajendra Nayak, Vikram + * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard + * Woodruff + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This code provides a consistent interface for OMAP device drivers + * to control power management and interconnect properties of their + * devices. + * + * In the medium- to long-term, this code should either be + * a) implemented via arch-specific pointers in platform_data + * or + * b) implemented as a proper omap_bus/omap_device in Linux, no more + * platform_data func pointers + * + * + * Guidelines for usage by driver authors: + * + * 1. These functions are intended to be used by device drivers via + * function pointers in struct platform_data. As an example, + * omap_device_enable() should be passed to the driver as + * + * struct foo_driver_platform_data { + * ... + * int (*device_enable)(struct platform_device *pdev); + * ... + * } + * + * Note that the generic "device_enable" name is used, rather than + * "omap_device_enable". This is so other architectures can pass in their + * own enable/disable functions here. + * + * This should be populated during device setup: + * + * ... + * pdata->device_enable = omap_device_enable; + * ... + * + * 2. Drivers should first check to ensure the function pointer is not null + * before calling it, as in: + * + * if (pdata->device_enable) + * pdata->device_enable(pdev); + * + * This allows other architectures that don't use similar device_enable()/ + * device_shutdown() functions to execute normally. + * + * ... + * + * Suggested usage by device drivers: + * + * During device initialization: + * device_enable() + * + * During device idle: + * (save remaining device context if necessary) + * device_idle(); + * + * During device resume: + * device_enable(); + * (restore context if necessary) + * + * During device shutdown: + * device_shutdown() + * (device must be reinitialized at this point to use it again) + * + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/export.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/pm_runtime.h> +#include <linux/of.h> +#include <linux/notifier.h> + +#include "omap_device.h" +#include "omap_hwmod.h" + +/* These parameters are passed to _omap_device_{de,}activate() */ +#define USE_WAKEUP_LAT 0 +#define IGNORE_WAKEUP_LAT 1 + +static int omap_early_device_register(struct platform_device *pdev); + +static struct omap_device_pm_latency omap_default_latency[] = { + { + .deactivate_func = omap_device_idle_hwmods, + .activate_func = omap_device_enable_hwmods, + .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, + } +}; + +/* Private functions */ + +/** + * _omap_device_activate - increase device readiness + * @od: struct omap_device * + * @ignore_lat: increase to latency target (0) or full readiness (1)? + * + * Increase readiness of omap_device @od (thus decreasing device + * wakeup latency, but consuming more power). If @ignore_lat is + * IGNORE_WAKEUP_LAT, make the omap_device fully active. Otherwise, + * if @ignore_lat is USE_WAKEUP_LAT, and the device's maximum wakeup + * latency is greater than the requested maximum wakeup latency, step + * backwards in the omap_device_pm_latency table to ensure the + * device's maximum wakeup latency is less than or equal to the + * requested maximum wakeup latency. Returns 0. + */ +static int _omap_device_activate(struct omap_device *od, u8 ignore_lat) +{ + struct timespec a, b, c; + + dev_dbg(&od->pdev->dev, "omap_device: activating\n"); + + while (od->pm_lat_level > 0) { + struct omap_device_pm_latency *odpl; + unsigned long long act_lat = 0; + + od->pm_lat_level--; + + odpl = od->pm_lats + od->pm_lat_level; + + if (!ignore_lat && + (od->dev_wakeup_lat <= od->_dev_wakeup_lat_limit)) + break; + + read_persistent_clock(&a); + + /* XXX check return code */ + odpl->activate_func(od); + + read_persistent_clock(&b); + + c = timespec_sub(b, a); + act_lat = timespec_to_ns(&c); + + dev_dbg(&od->pdev->dev, + "omap_device: pm_lat %d: activate: elapsed time %llu nsec\n", + od->pm_lat_level, act_lat); + + if (act_lat > odpl->activate_lat) { + odpl->activate_lat_worst = act_lat; + if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) { + odpl->activate_lat = act_lat; + dev_dbg(&od->pdev->dev, + "new worst case activate latency %d: %llu\n", + od->pm_lat_level, act_lat); + } else + dev_warn(&od->pdev->dev, + "activate latency %d higher than expected. (%llu > %d)\n", + od->pm_lat_level, act_lat, + odpl->activate_lat); + } + + od->dev_wakeup_lat -= odpl->activate_lat; + } + + return 0; +} + +/** + * _omap_device_deactivate - decrease device readiness + * @od: struct omap_device * + * @ignore_lat: decrease to latency target (0) or full inactivity (1)? + * + * Decrease readiness of omap_device @od (thus increasing device + * wakeup latency, but conserving power). If @ignore_lat is + * IGNORE_WAKEUP_LAT, make the omap_device fully inactive. Otherwise, + * if @ignore_lat is USE_WAKEUP_LAT, and the device's maximum wakeup + * latency is less than the requested maximum wakeup latency, step + * forwards in the omap_device_pm_latency table to ensure the device's + * maximum wakeup latency is less than or equal to the requested + * maximum wakeup latency. Returns 0. + */ +static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat) +{ + struct timespec a, b, c; + + dev_dbg(&od->pdev->dev, "omap_device: deactivating\n"); + + while (od->pm_lat_level < od->pm_lats_cnt) { + struct omap_device_pm_latency *odpl; + unsigned long long deact_lat = 0; + + odpl = od->pm_lats + od->pm_lat_level; + + if (!ignore_lat && + ((od->dev_wakeup_lat + odpl->activate_lat) > + od->_dev_wakeup_lat_limit)) + break; + + read_persistent_clock(&a); + + /* XXX check return code */ + odpl->deactivate_func(od); + + read_persistent_clock(&b); + + c = timespec_sub(b, a); + deact_lat = timespec_to_ns(&c); + + dev_dbg(&od->pdev->dev, + "omap_device: pm_lat %d: deactivate: elapsed time %llu nsec\n", + od->pm_lat_level, deact_lat); + + if (deact_lat > odpl->deactivate_lat) { + odpl->deactivate_lat_worst = deact_lat; + if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) { + odpl->deactivate_lat = deact_lat; + dev_dbg(&od->pdev->dev, + "new worst case deactivate latency %d: %llu\n", + od->pm_lat_level, deact_lat); + } else + dev_warn(&od->pdev->dev, + "deactivate latency %d higher than expected. (%llu > %d)\n", + od->pm_lat_level, deact_lat, + odpl->deactivate_lat); + } + + od->dev_wakeup_lat += odpl->activate_lat; + + od->pm_lat_level++; + } + + return 0; +} + +static void _add_clkdev(struct omap_device *od, const char *clk_alias, + const char *clk_name) +{ + struct clk *r; + struct clk_lookup *l; + + if (!clk_alias || !clk_name) + return; + + dev_dbg(&od->pdev->dev, "Creating %s -> %s\n", clk_alias, clk_name); + + r = clk_get_sys(dev_name(&od->pdev->dev), clk_alias); + if (!IS_ERR(r)) { + dev_warn(&od->pdev->dev, + "alias %s already exists\n", clk_alias); + clk_put(r); + return; + } + + r = clk_get(NULL, clk_name); + if (IS_ERR(r)) { + dev_err(&od->pdev->dev, + "clk_get for %s failed\n", clk_name); + return; + } + + l = clkdev_alloc(r, clk_alias, dev_name(&od->pdev->dev)); + if (!l) { + dev_err(&od->pdev->dev, + "clkdev_alloc for %s failed\n", clk_alias); + return; + } + + clkdev_add(l); +} + +/** + * _add_hwmod_clocks_clkdev - Add clkdev entry for hwmod optional clocks + * and main clock + * @od: struct omap_device *od + * @oh: struct omap_hwmod *oh + * + * For the main clock and every optional clock present per hwmod per + * omap_device, this function adds an entry in the clkdev table of the + * form <dev-id=dev_name, con-id=role> if it does not exist already. + * + * The function is called from inside omap_device_build_ss(), after + * omap_device_register. + * + * This allows drivers to get a pointer to its optional clocks based on its role + * by calling clk_get(<dev*>, <role>). + * In the case of the main clock, a "fck" alias is used. + * + * No return value. + */ +static void _add_hwmod_clocks_clkdev(struct omap_device *od, + struct omap_hwmod *oh) +{ + int i; + + _add_clkdev(od, "fck", oh->main_clk); + + for (i = 0; i < oh->opt_clks_cnt; i++) + _add_clkdev(od, oh->opt_clks[i].role, oh->opt_clks[i].clk); +} + + +/** + * omap_device_build_from_dt - build an omap_device with multiple hwmods + * @pdev_name: name of the platform_device driver to use + * @pdev_id: this platform_device's connection ID + * @oh: ptr to the single omap_hwmod that backs this omap_device + * @pdata: platform_data ptr to associate with the platform_device + * @pdata_len: amount of memory pointed to by @pdata + * @pm_lats: pointer to a omap_device_pm_latency array for this device + * @pm_lats_cnt: ARRAY_SIZE() of @pm_lats + * @is_early_device: should the device be registered as an early device or not + * + * Function for building an omap_device already registered from device-tree + * + * Returns 0 or PTR_ERR() on error. + */ +static int omap_device_build_from_dt(struct platform_device *pdev) +{ + struct omap_hwmod **hwmods; + struct omap_device *od; + struct omap_hwmod *oh; + struct device_node *node = pdev->dev.of_node; + const char *oh_name; + int oh_cnt, i, ret = 0; + + oh_cnt = of_property_count_strings(node, "ti,hwmods"); + if (!oh_cnt || IS_ERR_VALUE(oh_cnt)) { + dev_dbg(&pdev->dev, "No 'hwmods' to build omap_device\n"); + return -ENODEV; + } + + hwmods = kzalloc(sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL); + if (!hwmods) { + ret = -ENOMEM; + goto odbfd_exit; + } + + for (i = 0; i < oh_cnt; i++) { + of_property_read_string_index(node, "ti,hwmods", i, &oh_name); + oh = omap_hwmod_lookup(oh_name); + if (!oh) { + dev_err(&pdev->dev, "Cannot lookup hwmod '%s'\n", + oh_name); + ret = -EINVAL; + goto odbfd_exit1; + } + hwmods[i] = oh; + } + + od = omap_device_alloc(pdev, hwmods, oh_cnt, NULL, 0); + if (!od) { + dev_err(&pdev->dev, "Cannot allocate omap_device for :%s\n", + oh_name); + ret = PTR_ERR(od); + goto odbfd_exit1; + } + + /* Fix up missing resource names */ + for (i = 0; i < pdev->num_resources; i++) { + struct resource *r = &pdev->resource[i]; + + if (r->name == NULL) + r->name = dev_name(&pdev->dev); + } + + if (of_get_property(node, "ti,no_idle_on_suspend", NULL)) + omap_device_disable_idle_on_suspend(pdev); + + pdev->dev.pm_domain = &omap_device_pm_domain; + +odbfd_exit1: + kfree(hwmods); +odbfd_exit: + return ret; +} + +static int _omap_device_notifier_call(struct notifier_block *nb, + unsigned long event, void *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *od; + + switch (event) { + case BUS_NOTIFY_DEL_DEVICE: + if (pdev->archdata.od) + omap_device_delete(pdev->archdata.od); + break; + case BUS_NOTIFY_ADD_DEVICE: + if (pdev->dev.of_node) + omap_device_build_from_dt(pdev); + /* fall through */ + default: + od = to_omap_device(pdev); + if (od) + od->_driver_status = event; + } + + return NOTIFY_DONE; +} + + +/* Public functions for use by core code */ + +/** + * omap_device_get_context_loss_count - get lost context count + * @od: struct omap_device * + * + * Using the primary hwmod, query the context loss count for this + * device. + * + * Callers should consider context for this device lost any time this + * function returns a value different than the value the caller got + * the last time it called this function. + * + * If any hwmods exist for the omap_device assoiated with @pdev, + * return the context loss counter for that hwmod, otherwise return + * zero. + */ +int omap_device_get_context_loss_count(struct platform_device *pdev) +{ + struct omap_device *od; + u32 ret = 0; + + od = to_omap_device(pdev); + + if (od->hwmods_cnt) + ret = omap_hwmod_get_context_loss_count(od->hwmods[0]); + + return ret; +} + +/** + * omap_device_count_resources - count number of struct resource entries needed + * @od: struct omap_device * + * + * Count the number of struct resource entries needed for this + * omap_device @od. Used by omap_device_build_ss() to determine how + * much memory to allocate before calling + * omap_device_fill_resources(). Returns the count. + */ +static int omap_device_count_resources(struct omap_device *od) +{ + int c = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) + c += omap_hwmod_count_resources(od->hwmods[i]); + + pr_debug("omap_device: %s: counted %d total resources across %d hwmods\n", + od->pdev->name, c, od->hwmods_cnt); + + return c; +} + +/** + * omap_device_fill_resources - fill in array of struct resource + * @od: struct omap_device * + * @res: pointer to an array of struct resource to be filled in + * + * Populate one or more empty struct resource pointed to by @res with + * the resource data for this omap_device @od. Used by + * omap_device_build_ss() after calling omap_device_count_resources(). + * Ideally this function would not be needed at all. If omap_device + * replaces platform_device, then we can specify our own + * get_resource()/ get_irq()/etc functions that use the underlying + * omap_hwmod information. Or if platform_device is extended to use + * subarchitecture-specific function pointers, the various + * platform_device functions can simply call omap_device internal + * functions to get device resources. Hacking around the existing + * platform_device code wastes memory. Returns 0. + */ +static int omap_device_fill_resources(struct omap_device *od, + struct resource *res) +{ + int i, r; + + for (i = 0; i < od->hwmods_cnt; i++) { + r = omap_hwmod_fill_resources(od->hwmods[i], res); + res += r; + } + + return 0; +} + +/** + * _od_fill_dma_resources - fill in array of struct resource with dma resources + * @od: struct omap_device * + * @res: pointer to an array of struct resource to be filled in + * + * Populate one or more empty struct resource pointed to by @res with + * the dma resource data for this omap_device @od. Used by + * omap_device_alloc() after calling omap_device_count_resources(). + * + * Ideally this function would not be needed at all. If we have + * mechanism to get dma resources from DT. + * + * Returns 0. + */ +static int _od_fill_dma_resources(struct omap_device *od, + struct resource *res) +{ + int i, r; + + for (i = 0; i < od->hwmods_cnt; i++) { + r = omap_hwmod_fill_dma_resources(od->hwmods[i], res); + res += r; + } + + return 0; +} + +/** + * omap_device_alloc - allocate an omap_device + * @pdev: platform_device that will be included in this omap_device + * @oh: ptr to the single omap_hwmod that backs this omap_device + * @pdata: platform_data ptr to associate with the platform_device + * @pdata_len: amount of memory pointed to by @pdata + * @pm_lats: pointer to a omap_device_pm_latency array for this device + * @pm_lats_cnt: ARRAY_SIZE() of @pm_lats + * + * Convenience function for allocating an omap_device structure and filling + * hwmods, resources and pm_latency attributes. + * + * Returns an struct omap_device pointer or ERR_PTR() on error; + */ +struct omap_device *omap_device_alloc(struct platform_device *pdev, + struct omap_hwmod **ohs, int oh_cnt, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt) +{ + int ret = -ENOMEM; + struct omap_device *od; + struct resource *res = NULL; + int i, res_count; + struct omap_hwmod **hwmods; + + od = kzalloc(sizeof(struct omap_device), GFP_KERNEL); + if (!od) { + ret = -ENOMEM; + goto oda_exit1; + } + od->hwmods_cnt = oh_cnt; + + hwmods = kmemdup(ohs, sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL); + if (!hwmods) + goto oda_exit2; + + od->hwmods = hwmods; + od->pdev = pdev; + + res_count = omap_device_count_resources(od); + /* + * DT Boot: + * OF framework will construct the resource structure (currently + * does for MEM & IRQ resource) and we should respect/use these + * resources, killing hwmod dependency. + * If pdev->num_resources > 0, we assume that MEM & IRQ resources + * have been allocated by OF layer already (through DTB). + * + * Non-DT Boot: + * Here, pdev->num_resources = 0, and we should get all the + * resources from hwmod. + * + * TODO: Once DMA resource is available from OF layer, we should + * kill filling any resources from hwmod. + */ + if (res_count > pdev->num_resources) { + /* Allocate resources memory to account for new resources */ + res = kzalloc(sizeof(struct resource) * res_count, GFP_KERNEL); + if (!res) + goto oda_exit3; + + /* + * If pdev->num_resources > 0, then assume that, + * MEM and IRQ resources will only come from DT and only + * fill DMA resource from hwmod layer. + */ + if (pdev->num_resources && pdev->resource) { + dev_dbg(&pdev->dev, "%s(): resources already allocated %d\n", + __func__, res_count); + memcpy(res, pdev->resource, + sizeof(struct resource) * pdev->num_resources); + _od_fill_dma_resources(od, &res[pdev->num_resources]); + } else { + dev_dbg(&pdev->dev, "%s(): using resources from hwmod %d\n", + __func__, res_count); + omap_device_fill_resources(od, res); + } + + ret = platform_device_add_resources(pdev, res, res_count); + kfree(res); + + if (ret) + goto oda_exit3; + } + + if (!pm_lats) { + pm_lats = omap_default_latency; + pm_lats_cnt = ARRAY_SIZE(omap_default_latency); + } + + od->pm_lats_cnt = pm_lats_cnt; + od->pm_lats = kmemdup(pm_lats, + sizeof(struct omap_device_pm_latency) * pm_lats_cnt, + GFP_KERNEL); + if (!od->pm_lats) + goto oda_exit3; + + pdev->archdata.od = od; + + for (i = 0; i < oh_cnt; i++) { + hwmods[i]->od = od; + _add_hwmod_clocks_clkdev(od, hwmods[i]); + } + + return od; + +oda_exit3: + kfree(hwmods); +oda_exit2: + kfree(od); +oda_exit1: + dev_err(&pdev->dev, "omap_device: build failed (%d)\n", ret); + + return ERR_PTR(ret); +} + +void omap_device_delete(struct omap_device *od) +{ + if (!od) + return; + + od->pdev->archdata.od = NULL; + kfree(od->pm_lats); + kfree(od->hwmods); + kfree(od); +} + +/** + * omap_device_build - build and register an omap_device with one omap_hwmod + * @pdev_name: name of the platform_device driver to use + * @pdev_id: this platform_device's connection ID + * @oh: ptr to the single omap_hwmod that backs this omap_device + * @pdata: platform_data ptr to associate with the platform_device + * @pdata_len: amount of memory pointed to by @pdata + * @pm_lats: pointer to a omap_device_pm_latency array for this device + * @pm_lats_cnt: ARRAY_SIZE() of @pm_lats + * @is_early_device: should the device be registered as an early device or not + * + * Convenience function for building and registering a single + * omap_device record, which in turn builds and registers a + * platform_device record. See omap_device_build_ss() for more + * information. Returns ERR_PTR(-EINVAL) if @oh is NULL; otherwise, + * passes along the return value of omap_device_build_ss(). + */ +struct platform_device __init *omap_device_build(const char *pdev_name, int pdev_id, + struct omap_hwmod *oh, void *pdata, + int pdata_len, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt, int is_early_device) +{ + struct omap_hwmod *ohs[] = { oh }; + + if (!oh) + return ERR_PTR(-EINVAL); + + return omap_device_build_ss(pdev_name, pdev_id, ohs, 1, pdata, + pdata_len, pm_lats, pm_lats_cnt, + is_early_device); +} + +/** + * omap_device_build_ss - build and register an omap_device with multiple hwmods + * @pdev_name: name of the platform_device driver to use + * @pdev_id: this platform_device's connection ID + * @oh: ptr to the single omap_hwmod that backs this omap_device + * @pdata: platform_data ptr to associate with the platform_device + * @pdata_len: amount of memory pointed to by @pdata + * @pm_lats: pointer to a omap_device_pm_latency array for this device + * @pm_lats_cnt: ARRAY_SIZE() of @pm_lats + * @is_early_device: should the device be registered as an early device or not + * + * Convenience function for building and registering an omap_device + * subsystem record. Subsystem records consist of multiple + * omap_hwmods. This function in turn builds and registers a + * platform_device record. Returns an ERR_PTR() on error, or passes + * along the return value of omap_device_register(). + */ +struct platform_device __init *omap_device_build_ss(const char *pdev_name, int pdev_id, + struct omap_hwmod **ohs, int oh_cnt, + void *pdata, int pdata_len, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt, int is_early_device) +{ + int ret = -ENOMEM; + struct platform_device *pdev; + struct omap_device *od; + + if (!ohs || oh_cnt == 0 || !pdev_name) + return ERR_PTR(-EINVAL); + + if (!pdata && pdata_len > 0) + return ERR_PTR(-EINVAL); + + pdev = platform_device_alloc(pdev_name, pdev_id); + if (!pdev) { + ret = -ENOMEM; + goto odbs_exit; + } + + /* Set the dev_name early to allow dev_xxx in omap_device_alloc */ + if (pdev->id != -1) + dev_set_name(&pdev->dev, "%s.%d", pdev->name, pdev->id); + else + dev_set_name(&pdev->dev, "%s", pdev->name); + + od = omap_device_alloc(pdev, ohs, oh_cnt, pm_lats, pm_lats_cnt); + if (IS_ERR(od)) + goto odbs_exit1; + + ret = platform_device_add_data(pdev, pdata, pdata_len); + if (ret) + goto odbs_exit2; + + if (is_early_device) + ret = omap_early_device_register(pdev); + else + ret = omap_device_register(pdev); + if (ret) + goto odbs_exit2; + + return pdev; + +odbs_exit2: + omap_device_delete(od); +odbs_exit1: + platform_device_put(pdev); +odbs_exit: + + pr_err("omap_device: %s: build failed (%d)\n", pdev_name, ret); + + return ERR_PTR(ret); +} + +/** + * omap_early_device_register - register an omap_device as an early platform + * device. + * @od: struct omap_device * to register + * + * Register the omap_device structure. This currently just calls + * platform_early_add_device() on the underlying platform_device. + * Returns 0 by default. + */ +static int __init omap_early_device_register(struct platform_device *pdev) +{ + struct platform_device *devices[1]; + + devices[0] = pdev; + early_platform_add_devices(devices, 1); + return 0; +} + +#ifdef CONFIG_PM_RUNTIME +static int _od_runtime_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + int ret; + + ret = pm_generic_runtime_suspend(dev); + + if (!ret) + omap_device_idle(pdev); + + return ret; +} + +static int _od_runtime_idle(struct device *dev) +{ + return pm_generic_runtime_idle(dev); +} + +static int _od_runtime_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + + omap_device_enable(pdev); + + return pm_generic_runtime_resume(dev); +} +#endif + +#ifdef CONFIG_SUSPEND +static int _od_suspend_noirq(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *od = to_omap_device(pdev); + int ret; + + /* Don't attempt late suspend on a driver that is not bound */ + if (od->_driver_status != BUS_NOTIFY_BOUND_DRIVER) + return 0; + + ret = pm_generic_suspend_noirq(dev); + + if (!ret && !pm_runtime_status_suspended(dev)) { + if (pm_generic_runtime_suspend(dev) == 0) { + if (!(od->flags & OMAP_DEVICE_NO_IDLE_ON_SUSPEND)) + omap_device_idle(pdev); + od->flags |= OMAP_DEVICE_SUSPENDED; + } + } + + return ret; +} + +static int _od_resume_noirq(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *od = to_omap_device(pdev); + + if ((od->flags & OMAP_DEVICE_SUSPENDED) && + !pm_runtime_status_suspended(dev)) { + od->flags &= ~OMAP_DEVICE_SUSPENDED; + if (!(od->flags & OMAP_DEVICE_NO_IDLE_ON_SUSPEND)) + omap_device_enable(pdev); + pm_generic_runtime_resume(dev); + } + + return pm_generic_resume_noirq(dev); +} +#else +#define _od_suspend_noirq NULL +#define _od_resume_noirq NULL +#endif + +struct dev_pm_domain omap_device_pm_domain = { + .ops = { + SET_RUNTIME_PM_OPS(_od_runtime_suspend, _od_runtime_resume, + _od_runtime_idle) + USE_PLATFORM_PM_SLEEP_OPS + .suspend_noirq = _od_suspend_noirq, + .resume_noirq = _od_resume_noirq, + } +}; + +/** + * omap_device_register - register an omap_device with one omap_hwmod + * @od: struct omap_device * to register + * + * Register the omap_device structure. This currently just calls + * platform_device_register() on the underlying platform_device. + * Returns the return value of platform_device_register(). + */ +int omap_device_register(struct platform_device *pdev) +{ + pr_debug("omap_device: %s: registering\n", pdev->name); + + pdev->dev.pm_domain = &omap_device_pm_domain; + return platform_device_add(pdev); +} + + +/* Public functions for use by device drivers through struct platform_data */ + +/** + * omap_device_enable - fully activate an omap_device + * @od: struct omap_device * to activate + * + * Do whatever is necessary for the hwmods underlying omap_device @od + * to be accessible and ready to operate. This generally involves + * enabling clocks, setting SYSCONFIG registers; and in the future may + * involve remuxing pins. Device drivers should call this function + * (through platform_data function pointers) where they would normally + * enable clocks, etc. Returns -EINVAL if called when the omap_device + * is already enabled, or passes along the return value of + * _omap_device_activate(). + */ +int omap_device_enable(struct platform_device *pdev) +{ + int ret; + struct omap_device *od; + + od = to_omap_device(pdev); + + if (od->_state == OMAP_DEVICE_STATE_ENABLED) { + dev_warn(&pdev->dev, + "omap_device: %s() called from invalid state %d\n", + __func__, od->_state); + return -EINVAL; + } + + /* Enable everything if we're enabling this device from scratch */ + if (od->_state == OMAP_DEVICE_STATE_UNKNOWN) + od->pm_lat_level = od->pm_lats_cnt; + + ret = _omap_device_activate(od, IGNORE_WAKEUP_LAT); + + od->dev_wakeup_lat = 0; + od->_dev_wakeup_lat_limit = UINT_MAX; + od->_state = OMAP_DEVICE_STATE_ENABLED; + + return ret; +} + +/** + * omap_device_idle - idle an omap_device + * @od: struct omap_device * to idle + * + * Idle omap_device @od by calling as many .deactivate_func() entries + * in the omap_device's pm_lats table as is possible without exceeding + * the device's maximum wakeup latency limit, pm_lat_limit. Device + * drivers should call this function (through platform_data function + * pointers) where they would normally disable clocks after operations + * complete, etc.. Returns -EINVAL if the omap_device is not + * currently enabled, or passes along the return value of + * _omap_device_deactivate(). + */ +int omap_device_idle(struct platform_device *pdev) +{ + int ret; + struct omap_device *od; + + od = to_omap_device(pdev); + + if (od->_state != OMAP_DEVICE_STATE_ENABLED) { + dev_warn(&pdev->dev, + "omap_device: %s() called from invalid state %d\n", + __func__, od->_state); + return -EINVAL; + } + + ret = _omap_device_deactivate(od, USE_WAKEUP_LAT); + + od->_state = OMAP_DEVICE_STATE_IDLE; + + return ret; +} + +/** + * omap_device_shutdown - shut down an omap_device + * @od: struct omap_device * to shut down + * + * Shut down omap_device @od by calling all .deactivate_func() entries + * in the omap_device's pm_lats table and then shutting down all of + * the underlying omap_hwmods. Used when a device is being "removed" + * or a device driver is being unloaded. Returns -EINVAL if the + * omap_device is not currently enabled or idle, or passes along the + * return value of _omap_device_deactivate(). + */ +int omap_device_shutdown(struct platform_device *pdev) +{ + int ret, i; + struct omap_device *od; + + od = to_omap_device(pdev); + + if (od->_state != OMAP_DEVICE_STATE_ENABLED && + od->_state != OMAP_DEVICE_STATE_IDLE) { + dev_warn(&pdev->dev, + "omap_device: %s() called from invalid state %d\n", + __func__, od->_state); + return -EINVAL; + } + + ret = _omap_device_deactivate(od, IGNORE_WAKEUP_LAT); + + for (i = 0; i < od->hwmods_cnt; i++) + omap_hwmod_shutdown(od->hwmods[i]); + + od->_state = OMAP_DEVICE_STATE_SHUTDOWN; + + return ret; +} + +/** + * omap_device_assert_hardreset - set a device's hardreset line + * @pdev: struct platform_device * to reset + * @name: const char * name of the reset line + * + * Set the hardreset line identified by @name on the IP blocks + * associated with the hwmods backing the platform_device @pdev. All + * of the hwmods associated with @pdev must have the same hardreset + * line linked to them for this to work. Passes along the return value + * of omap_hwmod_assert_hardreset() in the event of any failure, or + * returns 0 upon success. + */ +int omap_device_assert_hardreset(struct platform_device *pdev, const char *name) +{ + struct omap_device *od = to_omap_device(pdev); + int ret = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) { + ret = omap_hwmod_assert_hardreset(od->hwmods[i], name); + if (ret) + break; + } + + return ret; +} + +/** + * omap_device_deassert_hardreset - release a device's hardreset line + * @pdev: struct platform_device * to reset + * @name: const char * name of the reset line + * + * Release the hardreset line identified by @name on the IP blocks + * associated with the hwmods backing the platform_device @pdev. All + * of the hwmods associated with @pdev must have the same hardreset + * line linked to them for this to work. Passes along the return + * value of omap_hwmod_deassert_hardreset() in the event of any + * failure, or returns 0 upon success. + */ +int omap_device_deassert_hardreset(struct platform_device *pdev, + const char *name) +{ + struct omap_device *od = to_omap_device(pdev); + int ret = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) { + ret = omap_hwmod_deassert_hardreset(od->hwmods[i], name); + if (ret) + break; + } + + return ret; +} + +/** + * omap_device_align_pm_lat - activate/deactivate device to match wakeup lat lim + * @od: struct omap_device * + * + * When a device's maximum wakeup latency limit changes, call some of + * the .activate_func or .deactivate_func function pointers in the + * omap_device's pm_lats array to ensure that the device's maximum + * wakeup latency is less than or equal to the new latency limit. + * Intended to be called by OMAP PM code whenever a device's maximum + * wakeup latency limit changes (e.g., via + * omap_pm_set_dev_wakeup_lat()). Returns 0 if nothing needs to be + * done (e.g., if the omap_device is not currently idle, or if the + * wakeup latency is already current with the new limit) or passes + * along the return value of _omap_device_deactivate() or + * _omap_device_activate(). + */ +int omap_device_align_pm_lat(struct platform_device *pdev, + u32 new_wakeup_lat_limit) +{ + int ret = -EINVAL; + struct omap_device *od; + + od = to_omap_device(pdev); + + if (new_wakeup_lat_limit == od->dev_wakeup_lat) + return 0; + + od->_dev_wakeup_lat_limit = new_wakeup_lat_limit; + + if (od->_state != OMAP_DEVICE_STATE_IDLE) + return 0; + else if (new_wakeup_lat_limit > od->dev_wakeup_lat) + ret = _omap_device_deactivate(od, USE_WAKEUP_LAT); + else if (new_wakeup_lat_limit < od->dev_wakeup_lat) + ret = _omap_device_activate(od, USE_WAKEUP_LAT); + + return ret; +} + +/** + * omap_device_get_pwrdm - return the powerdomain * associated with @od + * @od: struct omap_device * + * + * Return the powerdomain associated with the first underlying + * omap_hwmod for this omap_device. Intended for use by core OMAP PM + * code. Returns NULL on error or a struct powerdomain * upon + * success. + */ +struct powerdomain *omap_device_get_pwrdm(struct omap_device *od) +{ + /* + * XXX Assumes that all omap_hwmod powerdomains are identical. + * This may not necessarily be true. There should be a sanity + * check in here to WARN() if any difference appears. + */ + if (!od->hwmods_cnt) + return NULL; + + return omap_hwmod_get_pwrdm(od->hwmods[0]); +} + +/** + * omap_device_get_mpu_rt_va - return the MPU's virtual addr for the hwmod base + * @od: struct omap_device * + * + * Return the MPU's virtual address for the base of the hwmod, from + * the ioremap() that the hwmod code does. Only valid if there is one + * hwmod associated with this device. Returns NULL if there are zero + * or more than one hwmods associated with this omap_device; + * otherwise, passes along the return value from + * omap_hwmod_get_mpu_rt_va(). + */ +void __iomem *omap_device_get_rt_va(struct omap_device *od) +{ + if (od->hwmods_cnt != 1) + return NULL; + + return omap_hwmod_get_mpu_rt_va(od->hwmods[0]); +} + +/** + * omap_device_get_by_hwmod_name() - convert a hwmod name to + * device pointer. + * @oh_name: name of the hwmod device + * + * Returns back a struct device * pointer associated with a hwmod + * device represented by a hwmod_name + */ +struct device *omap_device_get_by_hwmod_name(const char *oh_name) +{ + struct omap_hwmod *oh; + + if (!oh_name) { + WARN(1, "%s: no hwmod name!\n", __func__); + return ERR_PTR(-EINVAL); + } + + oh = omap_hwmod_lookup(oh_name); + if (IS_ERR_OR_NULL(oh)) { + WARN(1, "%s: no hwmod for %s\n", __func__, + oh_name); + return ERR_PTR(oh ? PTR_ERR(oh) : -ENODEV); + } + if (IS_ERR_OR_NULL(oh->od)) { + WARN(1, "%s: no omap_device for %s\n", __func__, + oh_name); + return ERR_PTR(oh->od ? PTR_ERR(oh->od) : -ENODEV); + } + + if (IS_ERR_OR_NULL(oh->od->pdev)) + return ERR_PTR(oh->od->pdev ? PTR_ERR(oh->od->pdev) : -ENODEV); + + return &oh->od->pdev->dev; +} +EXPORT_SYMBOL(omap_device_get_by_hwmod_name); + +/* + * Public functions intended for use in omap_device_pm_latency + * .activate_func and .deactivate_func function pointers + */ + +/** + * omap_device_enable_hwmods - call omap_hwmod_enable() on all hwmods + * @od: struct omap_device *od + * + * Enable all underlying hwmods. Returns 0. + */ +int omap_device_enable_hwmods(struct omap_device *od) +{ + int i; + + for (i = 0; i < od->hwmods_cnt; i++) + omap_hwmod_enable(od->hwmods[i]); + + /* XXX pass along return value here? */ + return 0; +} + +/** + * omap_device_idle_hwmods - call omap_hwmod_idle() on all hwmods + * @od: struct omap_device *od + * + * Idle all underlying hwmods. Returns 0. + */ +int omap_device_idle_hwmods(struct omap_device *od) +{ + int i; + + for (i = 0; i < od->hwmods_cnt; i++) + omap_hwmod_idle(od->hwmods[i]); + + /* XXX pass along return value here? */ + return 0; +} + +/** + * omap_device_disable_clocks - disable all main and interface clocks + * @od: struct omap_device *od + * + * Disable the main functional clock and interface clock for all of the + * omap_hwmods associated with the omap_device. Returns 0. + */ +int omap_device_disable_clocks(struct omap_device *od) +{ + int i; + + for (i = 0; i < od->hwmods_cnt; i++) + omap_hwmod_disable_clocks(od->hwmods[i]); + + /* XXX pass along return value here? */ + return 0; +} + +/** + * omap_device_enable_clocks - enable all main and interface clocks + * @od: struct omap_device *od + * + * Enable the main functional clock and interface clock for all of the + * omap_hwmods associated with the omap_device. Returns 0. + */ +int omap_device_enable_clocks(struct omap_device *od) +{ + int i; + + for (i = 0; i < od->hwmods_cnt; i++) + omap_hwmod_enable_clocks(od->hwmods[i]); + + /* XXX pass along return value here? */ + return 0; +} + +static struct notifier_block platform_nb = { + .notifier_call = _omap_device_notifier_call, +}; + +static int __init omap_device_init(void) +{ + bus_register_notifier(&platform_bus_type, &platform_nb); + return 0; +} +core_initcall(omap_device_init); + +/** + * omap_device_late_idle - idle devices without drivers + * @dev: struct device * associated with omap_device + * @data: unused + * + * Check the driver bound status of this device, and idle it + * if there is no driver attached. + */ +static int __init omap_device_late_idle(struct device *dev, void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *od = to_omap_device(pdev); + + if (!od) + return 0; + + /* + * If omap_device state is enabled, but has no driver bound, + * idle it. + */ + if (od->_driver_status != BUS_NOTIFY_BOUND_DRIVER) { + if (od->_state == OMAP_DEVICE_STATE_ENABLED) { + dev_warn(dev, "%s: enabled but no driver. Idling\n", + __func__); + omap_device_idle(pdev); + } + } + + return 0; +} + +static int __init omap_device_late_init(void) +{ + bus_for_each_dev(&platform_bus_type, NULL, NULL, omap_device_late_idle); + return 0; +} +late_initcall(omap_device_late_init); diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h new file mode 100644 index 0000000..0933c59 --- /dev/null +++ b/arch/arm/mach-omap2/omap_device.h @@ -0,0 +1,176 @@ +/* + * omap_device headers + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * Developed in collaboration with (alphabetical order): Benoit + * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram + * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard + * Woodruff + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Eventually this type of functionality should either be + * a) implemented via arch-specific pointers in platform_device + * or + * b) implemented as a proper omap_bus/omap_device in Linux, no more + * platform_device + * + * omap_device differs from omap_hwmod in that it includes external + * (e.g., board- and system-level) integration details. omap_hwmod + * stores hardware data that is invariant for a given OMAP chip. + * + * To do: + * - GPIO integration + * - regulator integration + * + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H + +#include <linux/kernel.h> +#include <linux/platform_device.h> + +#include "omap_hwmod.h" + +extern struct dev_pm_domain omap_device_pm_domain; + +/* omap_device._state values */ +#define OMAP_DEVICE_STATE_UNKNOWN 0 +#define OMAP_DEVICE_STATE_ENABLED 1 +#define OMAP_DEVICE_STATE_IDLE 2 +#define OMAP_DEVICE_STATE_SHUTDOWN 3 + +/* omap_device.flags values */ +#define OMAP_DEVICE_SUSPENDED BIT(0) +#define OMAP_DEVICE_NO_IDLE_ON_SUSPEND BIT(1) + +/** + * struct omap_device - omap_device wrapper for platform_devices + * @pdev: platform_device + * @hwmods: (one .. many per omap_device) + * @hwmods_cnt: ARRAY_SIZE() of @hwmods + * @pm_lats: ptr to an omap_device_pm_latency table + * @pm_lats_cnt: ARRAY_SIZE() of what is passed to @pm_lats + * @pm_lat_level: array index of the last odpl entry executed - -1 if never + * @dev_wakeup_lat: dev wakeup latency in nanoseconds + * @_dev_wakeup_lat_limit: dev wakeup latency limit in nsec - set by OMAP PM + * @_state: one of OMAP_DEVICE_STATE_* (see above) + * @flags: device flags + * @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h> + * + * Integrates omap_hwmod data into Linux platform_device. + * + * Field names beginning with underscores are for the internal use of + * the omap_device code. + * + */ +struct omap_device { + struct platform_device *pdev; + struct omap_hwmod **hwmods; + struct omap_device_pm_latency *pm_lats; + u32 dev_wakeup_lat; + u32 _dev_wakeup_lat_limit; + unsigned long _driver_status; + u8 pm_lats_cnt; + s8 pm_lat_level; + u8 hwmods_cnt; + u8 _state; + u8 flags; +}; + +/* Device driver interface (call via platform_data fn ptrs) */ + +int omap_device_enable(struct platform_device *pdev); +int omap_device_idle(struct platform_device *pdev); +int omap_device_shutdown(struct platform_device *pdev); + +/* Core code interface */ + +struct platform_device *omap_device_build(const char *pdev_name, int pdev_id, + struct omap_hwmod *oh, void *pdata, + int pdata_len, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt, int is_early_device); + +struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id, + struct omap_hwmod **oh, int oh_cnt, + void *pdata, int pdata_len, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt, int is_early_device); + +struct omap_device *omap_device_alloc(struct platform_device *pdev, + struct omap_hwmod **ohs, int oh_cnt, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt); +void omap_device_delete(struct omap_device *od); +int omap_device_register(struct platform_device *pdev); + +void __iomem *omap_device_get_rt_va(struct omap_device *od); +struct device *omap_device_get_by_hwmod_name(const char *oh_name); + +/* OMAP PM interface */ +int omap_device_align_pm_lat(struct platform_device *pdev, + u32 new_wakeup_lat_limit); +struct powerdomain *omap_device_get_pwrdm(struct omap_device *od); +int omap_device_get_context_loss_count(struct platform_device *pdev); + +/* Other */ + +int omap_device_assert_hardreset(struct platform_device *pdev, + const char *name); +int omap_device_deassert_hardreset(struct platform_device *pdev, + const char *name); +int omap_device_idle_hwmods(struct omap_device *od); +int omap_device_enable_hwmods(struct omap_device *od); + +int omap_device_disable_clocks(struct omap_device *od); +int omap_device_enable_clocks(struct omap_device *od); + +/* + * Entries should be kept in latency order ascending + * + * deact_lat is the maximum number of microseconds required to complete + * deactivate_func() at the device's slowest OPP. + * + * act_lat is the maximum number of microseconds required to complete + * activate_func() at the device's slowest OPP. + * + * This will result in some suboptimal power management decisions at fast + * OPPs, but avoids having to recompute all device power management decisions + * if the system shifts from a fast OPP to a slow OPP (in order to meet + * latency requirements). + * + * XXX should deactivate_func/activate_func() take platform_device pointers + * rather than omap_device pointers? + */ +struct omap_device_pm_latency { + u32 deactivate_lat; + u32 deactivate_lat_worst; + int (*deactivate_func)(struct omap_device *od); + u32 activate_lat; + u32 activate_lat_worst; + int (*activate_func)(struct omap_device *od); + u32 flags; +}; + +#define OMAP_DEVICE_LATENCY_AUTO_ADJUST BIT(1) + +/* Get omap_device pointer from platform_device pointer */ +static inline struct omap_device *to_omap_device(struct platform_device *pdev) +{ + return pdev ? pdev->archdata.od : NULL; +} + +static inline +void omap_device_disable_idle_on_suspend(struct platform_device *pdev) +{ + struct omap_device *od = to_omap_device(pdev); + + od->flags |= OMAP_DEVICE_NO_IDLE_ON_SUSPEND; +} + +#endif diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 87cc6d0..437fbc5 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -139,18 +139,19 @@ #include <linux/slab.h> #include <linux/bootmem.h> -#include <plat/clock.h> -#include <plat/omap_hwmod.h> +#include "clock.h" +#include "omap_hwmod.h" #include <plat/prcm.h> #include "soc.h" #include "common.h" #include "clockdomain.h" #include "powerdomain.h" -#include "cm2xxx_3xxx.h" +#include "cm2xxx.h" +#include "cm3xxx.h" #include "cminst44xx.h" #include "cm33xx.h" -#include "prm2xxx_3xxx.h" +#include "prm3xxx.h" #include "prm44xx.h" #include "prm33xx.h" #include "prminst44xx.h" @@ -2703,7 +2704,7 @@ static int __init _alloc_linkspace(struct omap_hwmod_ocp_if **ois) /* Static functions intended only for use in soc_ops field function pointers */ /** - * _omap2_wait_target_ready - wait for a module to leave slave idle + * _omap2xxx_wait_target_ready - wait for a module to leave slave idle * @oh: struct omap_hwmod * * * Wait for a module @oh to leave slave idle. Returns 0 if the module @@ -2711,7 +2712,7 @@ static int __init _alloc_linkspace(struct omap_hwmod_ocp_if **ois) * slave idle; otherwise, pass along the return value of the * appropriate *_cm*_wait_module_ready() function. */ -static int _omap2_wait_target_ready(struct omap_hwmod *oh) +static int _omap2xxx_wait_target_ready(struct omap_hwmod *oh) { if (!oh) return -EINVAL; @@ -2724,9 +2725,36 @@ static int _omap2_wait_target_ready(struct omap_hwmod *oh) /* XXX check module SIDLEMODE, hardreset status, enabled clocks */ - return omap2_cm_wait_module_ready(oh->prcm.omap2.module_offs, - oh->prcm.omap2.idlest_reg_id, - oh->prcm.omap2.idlest_idle_bit); + return omap2xxx_cm_wait_module_ready(oh->prcm.omap2.module_offs, + oh->prcm.omap2.idlest_reg_id, + oh->prcm.omap2.idlest_idle_bit); +} + +/** + * _omap3xxx_wait_target_ready - wait for a module to leave slave idle + * @oh: struct omap_hwmod * + * + * Wait for a module @oh to leave slave idle. Returns 0 if the module + * does not have an IDLEST bit or if the module successfully leaves + * slave idle; otherwise, pass along the return value of the + * appropriate *_cm*_wait_module_ready() function. + */ +static int _omap3xxx_wait_target_ready(struct omap_hwmod *oh) +{ + if (!oh) + return -EINVAL; + + if (oh->flags & HWMOD_NO_IDLEST) + return 0; + + if (!_find_mpu_rt_port(oh)) + return 0; + + /* XXX check module SIDLEMODE, hardreset status, enabled clocks */ + + return omap3xxx_cm_wait_module_ready(oh->prcm.omap2.module_offs, + oh->prcm.omap2.idlest_reg_id, + oh->prcm.omap2.idlest_idle_bit); } /** @@ -3994,8 +4022,13 @@ int omap_hwmod_pad_route_irq(struct omap_hwmod *oh, int pad_idx, int irq_idx) */ void __init omap_hwmod_init(void) { - if (cpu_is_omap24xx() || cpu_is_omap34xx()) { - soc_ops.wait_target_ready = _omap2_wait_target_ready; + if (cpu_is_omap24xx()) { + soc_ops.wait_target_ready = _omap2xxx_wait_target_ready; + soc_ops.assert_hardreset = _omap2_assert_hardreset; + soc_ops.deassert_hardreset = _omap2_deassert_hardreset; + soc_ops.is_hardreset_asserted = _omap2_is_hardreset_asserted; + } else if (cpu_is_omap34xx()) { + soc_ops.wait_target_ready = _omap3xxx_wait_target_ready; soc_ops.assert_hardreset = _omap2_assert_hardreset; soc_ops.deassert_hardreset = _omap2_deassert_hardreset; soc_ops.is_hardreset_asserted = _omap2_is_hardreset_asserted; diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h new file mode 100644 index 0000000..87a3c5b --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod.h @@ -0,0 +1,681 @@ +/* + * omap_hwmod macros, structures + * + * Copyright (C) 2009-2011 Nokia Corporation + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + * + * Created in collaboration with (alphabetical order): Benoît Cousson, + * Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram Pandita, Sakari + * Poussa, Anand Sawant, Santosh Shilimkar, Richard Woodruff + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * These headers and macros are used to define OMAP on-chip module + * data and their integration with other OMAP modules and Linux. + * Copious documentation and references can also be found in the + * omap_hwmod code, in arch/arm/mach-omap2/omap_hwmod.c (as of this + * writing). + * + * To do: + * - add interconnect error log structures + * - add pinmuxing + * - init_conn_id_bit (CONNID_BIT_VECTOR) + * - implement default hwmod SMS/SDRC flags? + * - move Linux-specific data ("non-ROM data") out + * + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/ioport.h> +#include <linux/spinlock.h> + +struct omap_device; + +extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type1; +extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2; +extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type3; + +/* + * OCP SYSCONFIG bit shifts/masks TYPE1. These are for IPs compliant + * with the original PRCM protocol defined for OMAP2420 + */ +#define SYSC_TYPE1_MIDLEMODE_SHIFT 12 +#define SYSC_TYPE1_MIDLEMODE_MASK (0x3 << SYSC_TYPE1_MIDLEMODE_SHIFT) +#define SYSC_TYPE1_CLOCKACTIVITY_SHIFT 8 +#define SYSC_TYPE1_CLOCKACTIVITY_MASK (0x3 << SYSC_TYPE1_CLOCKACTIVITY_SHIFT) +#define SYSC_TYPE1_SIDLEMODE_SHIFT 3 +#define SYSC_TYPE1_SIDLEMODE_MASK (0x3 << SYSC_TYPE1_SIDLEMODE_SHIFT) +#define SYSC_TYPE1_ENAWAKEUP_SHIFT 2 +#define SYSC_TYPE1_ENAWAKEUP_MASK (1 << SYSC_TYPE1_ENAWAKEUP_SHIFT) +#define SYSC_TYPE1_SOFTRESET_SHIFT 1 +#define SYSC_TYPE1_SOFTRESET_MASK (1 << SYSC_TYPE1_SOFTRESET_SHIFT) +#define SYSC_TYPE1_AUTOIDLE_SHIFT 0 +#define SYSC_TYPE1_AUTOIDLE_MASK (1 << SYSC_TYPE1_AUTOIDLE_SHIFT) + +/* + * OCP SYSCONFIG bit shifts/masks TYPE2. These are for IPs compliant + * with the new PRCM protocol defined for new OMAP4 IPs. + */ +#define SYSC_TYPE2_SOFTRESET_SHIFT 0 +#define SYSC_TYPE2_SOFTRESET_MASK (1 << SYSC_TYPE2_SOFTRESET_SHIFT) +#define SYSC_TYPE2_SIDLEMODE_SHIFT 2 +#define SYSC_TYPE2_SIDLEMODE_MASK (0x3 << SYSC_TYPE2_SIDLEMODE_SHIFT) +#define SYSC_TYPE2_MIDLEMODE_SHIFT 4 +#define SYSC_TYPE2_MIDLEMODE_MASK (0x3 << SYSC_TYPE2_MIDLEMODE_SHIFT) +#define SYSC_TYPE2_DMADISABLE_SHIFT 16 +#define SYSC_TYPE2_DMADISABLE_MASK (0x1 << SYSC_TYPE2_DMADISABLE_SHIFT) + +/* + * OCP SYSCONFIG bit shifts/masks TYPE3. + * This is applicable for some IPs present in AM33XX + */ +#define SYSC_TYPE3_SIDLEMODE_SHIFT 0 +#define SYSC_TYPE3_SIDLEMODE_MASK (0x3 << SYSC_TYPE3_SIDLEMODE_SHIFT) +#define SYSC_TYPE3_MIDLEMODE_SHIFT 2 +#define SYSC_TYPE3_MIDLEMODE_MASK (0x3 << SYSC_TYPE3_MIDLEMODE_SHIFT) + +/* OCP SYSSTATUS bit shifts/masks */ +#define SYSS_RESETDONE_SHIFT 0 +#define SYSS_RESETDONE_MASK (1 << SYSS_RESETDONE_SHIFT) + +/* Master standby/slave idle mode flags */ +#define HWMOD_IDLEMODE_FORCE (1 << 0) +#define HWMOD_IDLEMODE_NO (1 << 1) +#define HWMOD_IDLEMODE_SMART (1 << 2) +#define HWMOD_IDLEMODE_SMART_WKUP (1 << 3) + +/* modulemode control type (SW or HW) */ +#define MODULEMODE_HWCTRL 1 +#define MODULEMODE_SWCTRL 2 + + +/** + * struct omap_hwmod_mux_info - hwmod specific mux configuration + * @pads: array of omap_device_pad entries + * @nr_pads: number of omap_device_pad entries + * + * Note that this is currently built during init as needed. + */ +struct omap_hwmod_mux_info { + int nr_pads; + struct omap_device_pad *pads; + int nr_pads_dynamic; + struct omap_device_pad **pads_dynamic; + int *irqs; + bool enabled; +}; + +/** + * struct omap_hwmod_irq_info - MPU IRQs used by the hwmod + * @name: name of the IRQ channel (module local name) + * @irq: IRQ channel ID (should be non-negative except -1 = terminator) + * + * @name should be something short, e.g., "tx" or "rx". It is for use + * by platform_get_resource_byname(). It is defined locally to the + * hwmod. + */ +struct omap_hwmod_irq_info { + const char *name; + s16 irq; +}; + +/** + * struct omap_hwmod_dma_info - DMA channels used by the hwmod + * @name: name of the DMA channel (module local name) + * @dma_req: DMA request ID (should be non-negative except -1 = terminator) + * + * @name should be something short, e.g., "tx" or "rx". It is for use + * by platform_get_resource_byname(). It is defined locally to the + * hwmod. + */ +struct omap_hwmod_dma_info { + const char *name; + s16 dma_req; +}; + +/** + * struct omap_hwmod_rst_info - IPs reset lines use by hwmod + * @name: name of the reset line (module local name) + * @rst_shift: Offset of the reset bit + * @st_shift: Offset of the reset status bit (OMAP2/3 only) + * + * @name should be something short, e.g., "cpu0" or "rst". It is defined + * locally to the hwmod. + */ +struct omap_hwmod_rst_info { + const char *name; + u8 rst_shift; + u8 st_shift; +}; + +/** + * struct omap_hwmod_opt_clk - optional clocks used by this hwmod + * @role: "sys", "32k", "tv", etc -- for use in clk_get() + * @clk: opt clock: OMAP clock name + * @_clk: pointer to the struct clk (filled in at runtime) + * + * The module's interface clock and main functional clock should not + * be added as optional clocks. + */ +struct omap_hwmod_opt_clk { + const char *role; + const char *clk; + struct clk *_clk; +}; + + +/* omap_hwmod_omap2_firewall.flags bits */ +#define OMAP_FIREWALL_L3 (1 << 0) +#define OMAP_FIREWALL_L4 (1 << 1) + +/** + * struct omap_hwmod_omap2_firewall - OMAP2/3 device firewall data + * @l3_perm_bit: bit shift for L3_PM_*_PERMISSION_* + * @l4_fw_region: L4 firewall region ID + * @l4_prot_group: L4 protection group ID + * @flags: (see omap_hwmod_omap2_firewall.flags macros above) + */ +struct omap_hwmod_omap2_firewall { + u8 l3_perm_bit; + u8 l4_fw_region; + u8 l4_prot_group; + u8 flags; +}; + + +/* + * omap_hwmod_addr_space.flags bits + * + * ADDR_MAP_ON_INIT: Map this address space during omap_hwmod init. + * ADDR_TYPE_RT: Address space contains module register target data. + */ +#define ADDR_MAP_ON_INIT (1 << 0) /* XXX does not belong */ +#define ADDR_TYPE_RT (1 << 1) + +/** + * struct omap_hwmod_addr_space - address space handled by the hwmod + * @name: name of the address space + * @pa_start: starting physical address + * @pa_end: ending physical address + * @flags: (see omap_hwmod_addr_space.flags macros above) + * + * Address space doesn't necessarily follow physical interconnect + * structure. GPMC is one example. + */ +struct omap_hwmod_addr_space { + const char *name; + u32 pa_start; + u32 pa_end; + u8 flags; +}; + + +/* + * omap_hwmod_ocp_if.user bits: these indicate the initiators that use this + * interface to interact with the hwmod. Used to add sleep dependencies + * when the module is enabled or disabled. + */ +#define OCP_USER_MPU (1 << 0) +#define OCP_USER_SDMA (1 << 1) +#define OCP_USER_DSP (1 << 2) +#define OCP_USER_IVA (1 << 3) + +/* omap_hwmod_ocp_if.flags bits */ +#define OCPIF_SWSUP_IDLE (1 << 0) +#define OCPIF_CAN_BURST (1 << 1) + +/* omap_hwmod_ocp_if._int_flags possibilities */ +#define _OCPIF_INT_FLAGS_REGISTERED (1 << 0) + + +/** + * struct omap_hwmod_ocp_if - OCP interface data + * @master: struct omap_hwmod that initiates OCP transactions on this link + * @slave: struct omap_hwmod that responds to OCP transactions on this link + * @addr: address space associated with this link + * @clk: interface clock: OMAP clock name + * @_clk: pointer to the interface struct clk (filled in at runtime) + * @fw: interface firewall data + * @width: OCP data width + * @user: initiators using this interface (see OCP_USER_* macros above) + * @flags: OCP interface flags (see OCPIF_* macros above) + * @_int_flags: internal flags (see _OCPIF_INT_FLAGS* macros above) + * + * It may also be useful to add a tag_cnt field for OCP2.x devices. + * + * Parameter names beginning with an underscore are managed internally by + * the omap_hwmod code and should not be set during initialization. + */ +struct omap_hwmod_ocp_if { + struct omap_hwmod *master; + struct omap_hwmod *slave; + struct omap_hwmod_addr_space *addr; + const char *clk; + struct clk *_clk; + union { + struct omap_hwmod_omap2_firewall omap2; + } fw; + u8 width; + u8 user; + u8 flags; + u8 _int_flags; +}; + + +/* Macros for use in struct omap_hwmod_sysconfig */ + +/* Flags for use in omap_hwmod_sysconfig.idlemodes */ +#define MASTER_STANDBY_SHIFT 4 +#define SLAVE_IDLE_SHIFT 0 +#define SIDLE_FORCE (HWMOD_IDLEMODE_FORCE << SLAVE_IDLE_SHIFT) +#define SIDLE_NO (HWMOD_IDLEMODE_NO << SLAVE_IDLE_SHIFT) +#define SIDLE_SMART (HWMOD_IDLEMODE_SMART << SLAVE_IDLE_SHIFT) +#define SIDLE_SMART_WKUP (HWMOD_IDLEMODE_SMART_WKUP << SLAVE_IDLE_SHIFT) +#define MSTANDBY_FORCE (HWMOD_IDLEMODE_FORCE << MASTER_STANDBY_SHIFT) +#define MSTANDBY_NO (HWMOD_IDLEMODE_NO << MASTER_STANDBY_SHIFT) +#define MSTANDBY_SMART (HWMOD_IDLEMODE_SMART << MASTER_STANDBY_SHIFT) +#define MSTANDBY_SMART_WKUP (HWMOD_IDLEMODE_SMART_WKUP << MASTER_STANDBY_SHIFT) + +/* omap_hwmod_sysconfig.sysc_flags capability flags */ +#define SYSC_HAS_AUTOIDLE (1 << 0) +#define SYSC_HAS_SOFTRESET (1 << 1) +#define SYSC_HAS_ENAWAKEUP (1 << 2) +#define SYSC_HAS_EMUFREE (1 << 3) +#define SYSC_HAS_CLOCKACTIVITY (1 << 4) +#define SYSC_HAS_SIDLEMODE (1 << 5) +#define SYSC_HAS_MIDLEMODE (1 << 6) +#define SYSS_HAS_RESET_STATUS (1 << 7) +#define SYSC_NO_CACHE (1 << 8) /* XXX SW flag, belongs elsewhere */ +#define SYSC_HAS_RESET_STATUS (1 << 9) +#define SYSC_HAS_DMADISABLE (1 << 10) + +/* omap_hwmod_sysconfig.clockact flags */ +#define CLOCKACT_TEST_BOTH 0x0 +#define CLOCKACT_TEST_MAIN 0x1 +#define CLOCKACT_TEST_ICLK 0x2 +#define CLOCKACT_TEST_NONE 0x3 + +/** + * struct omap_hwmod_sysc_fields - hwmod OCP_SYSCONFIG register field offsets. + * @midle_shift: Offset of the midle bit + * @clkact_shift: Offset of the clockactivity bit + * @sidle_shift: Offset of the sidle bit + * @enwkup_shift: Offset of the enawakeup bit + * @srst_shift: Offset of the softreset bit + * @autoidle_shift: Offset of the autoidle bit + * @dmadisable_shift: Offset of the dmadisable bit + */ +struct omap_hwmod_sysc_fields { + u8 midle_shift; + u8 clkact_shift; + u8 sidle_shift; + u8 enwkup_shift; + u8 srst_shift; + u8 autoidle_shift; + u8 dmadisable_shift; +}; + +/** + * struct omap_hwmod_class_sysconfig - hwmod class OCP_SYS* data + * @rev_offs: IP block revision register offset (from module base addr) + * @sysc_offs: OCP_SYSCONFIG register offset (from module base addr) + * @syss_offs: OCP_SYSSTATUS register offset (from module base addr) + * @srst_udelay: Delay needed after doing a softreset in usecs + * @idlemodes: One or more of {SIDLE,MSTANDBY}_{OFF,FORCE,SMART} + * @sysc_flags: SYS{C,S}_HAS* flags indicating SYSCONFIG bits supported + * @clockact: the default value of the module CLOCKACTIVITY bits + * + * @clockact describes to the module which clocks are likely to be + * disabled when the PRCM issues its idle request to the module. Some + * modules have separate clockdomains for the interface clock and main + * functional clock, and can check whether they should acknowledge the + * idle request based on the internal module functionality that has + * been associated with the clocks marked in @clockact. This field is + * only used if HWMOD_SET_DEFAULT_CLOCKACT is set (see below) + * + * @sysc_fields: structure containing the offset positions of various bits in + * SYSCONFIG register. This can be populated using omap_hwmod_sysc_type1 or + * omap_hwmod_sysc_type2 defined in omap_hwmod_common_data.c depending on + * whether the device ip is compliant with the original PRCM protocol + * defined for OMAP2420 or the new PRCM protocol for new OMAP4 IPs. + * If the device follows a different scheme for the sysconfig register , + * then this field has to be populated with the correct offset structure. + */ +struct omap_hwmod_class_sysconfig { + u32 rev_offs; + u32 sysc_offs; + u32 syss_offs; + u16 sysc_flags; + struct omap_hwmod_sysc_fields *sysc_fields; + u8 srst_udelay; + u8 idlemodes; + u8 clockact; +}; + +/** + * struct omap_hwmod_omap2_prcm - OMAP2/3-specific PRCM data + * @module_offs: PRCM submodule offset from the start of the PRM/CM + * @prcm_reg_id: PRCM register ID (e.g., 3 for CM_AUTOIDLE3) + * @module_bit: register bit shift for AUTOIDLE, WKST, WKEN, GRPSEL regs + * @idlest_reg_id: IDLEST register ID (e.g., 3 for CM_IDLEST3) + * @idlest_idle_bit: register bit shift for CM_IDLEST slave idle bit + * @idlest_stdby_bit: register bit shift for CM_IDLEST master standby bit + * + * @prcm_reg_id and @module_bit are specific to the AUTOIDLE, WKST, + * WKEN, GRPSEL registers. In an ideal world, no extra information + * would be needed for IDLEST information, but alas, there are some + * exceptions, so @idlest_reg_id, @idlest_idle_bit, @idlest_stdby_bit + * are needed for the IDLEST registers (c.f. 2430 I2CHS, 3430 USBHOST) + */ +struct omap_hwmod_omap2_prcm { + s16 module_offs; + u8 prcm_reg_id; + u8 module_bit; + u8 idlest_reg_id; + u8 idlest_idle_bit; + u8 idlest_stdby_bit; +}; + +/* + * Possible values for struct omap_hwmod_omap4_prcm.flags + * + * HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT: Some IP blocks don't have a PRCM + * module-level context loss register associated with them; this + * flag bit should be set in those cases + */ +#define HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT (1 << 0) + +/** + * struct omap_hwmod_omap4_prcm - OMAP4-specific PRCM data + * @clkctrl_reg: PRCM address of the clock control register + * @rstctrl_reg: address of the XXX_RSTCTRL register located in the PRM + * @lostcontext_mask: bitmask for selecting bits from RM_*_CONTEXT register + * @rstst_reg: (AM33XX only) address of the XXX_RSTST register in the PRM + * @submodule_wkdep_bit: bit shift of the WKDEP range + * @flags: PRCM register capabilities for this IP block + * + * If @lostcontext_mask is not defined, context loss check code uses + * whole register without masking. @lostcontext_mask should only be + * defined in cases where @context_offs register is shared by two or + * more hwmods. + */ +struct omap_hwmod_omap4_prcm { + u16 clkctrl_offs; + u16 rstctrl_offs; + u16 rstst_offs; + u16 context_offs; + u32 lostcontext_mask; + u8 submodule_wkdep_bit; + u8 modulemode; + u8 flags; +}; + + +/* + * omap_hwmod.flags definitions + * + * HWMOD_SWSUP_SIDLE: omap_hwmod code should manually bring module in and out + * of idle, rather than relying on module smart-idle + * HWMOD_SWSUP_MSTDBY: omap_hwmod code should manually bring module in and out + * of standby, rather than relying on module smart-standby + * HWMOD_INIT_NO_RESET: don't reset this module at boot - important for + * SDRAM controller, etc. XXX probably belongs outside the main hwmod file + * XXX Should be HWMOD_SETUP_NO_RESET + * HWMOD_INIT_NO_IDLE: don't idle this module at boot - important for SDRAM + * controller, etc. XXX probably belongs outside the main hwmod file + * XXX Should be HWMOD_SETUP_NO_IDLE + * HWMOD_NO_OCP_AUTOIDLE: disable module autoidle (OCP_SYSCONFIG.AUTOIDLE) + * when module is enabled, rather than the default, which is to + * enable autoidle + * HWMOD_SET_DEFAULT_CLOCKACT: program CLOCKACTIVITY bits at startup + * HWMOD_NO_IDLEST: this module does not have idle status - this is the case + * only for few initiator modules on OMAP2 & 3. + * HWMOD_CONTROL_OPT_CLKS_IN_RESET: Enable all optional clocks during reset. + * This is needed for devices like DSS that require optional clocks enabled + * in order to complete the reset. Optional clocks will be disabled + * again after the reset. + * HWMOD_16BIT_REG: Module has 16bit registers + * HWMOD_EXT_OPT_MAIN_CLK: The only main functional clock source for + * this IP block comes from an off-chip source and is not always + * enabled. This prevents the hwmod code from being able to + * enable and reset the IP block early. XXX Eventually it should + * be possible to query the clock framework for this information. + */ +#define HWMOD_SWSUP_SIDLE (1 << 0) +#define HWMOD_SWSUP_MSTANDBY (1 << 1) +#define HWMOD_INIT_NO_RESET (1 << 2) +#define HWMOD_INIT_NO_IDLE (1 << 3) +#define HWMOD_NO_OCP_AUTOIDLE (1 << 4) +#define HWMOD_SET_DEFAULT_CLOCKACT (1 << 5) +#define HWMOD_NO_IDLEST (1 << 6) +#define HWMOD_CONTROL_OPT_CLKS_IN_RESET (1 << 7) +#define HWMOD_16BIT_REG (1 << 8) +#define HWMOD_EXT_OPT_MAIN_CLK (1 << 9) + +/* + * omap_hwmod._int_flags definitions + * These are for internal use only and are managed by the omap_hwmod code. + * + * _HWMOD_NO_MPU_PORT: no path exists for the MPU to write to this module + * _HWMOD_WAKEUP_ENABLED: set when the omap_hwmod code has enabled ENAWAKEUP + * _HWMOD_SYSCONFIG_LOADED: set when the OCP_SYSCONFIG value has been cached + * _HWMOD_SKIP_ENABLE: set if hwmod enabled during init (HWMOD_INIT_NO_IDLE) - + * causes the first call to _enable() to only update the pinmux + */ +#define _HWMOD_NO_MPU_PORT (1 << 0) +#define _HWMOD_WAKEUP_ENABLED (1 << 1) +#define _HWMOD_SYSCONFIG_LOADED (1 << 2) +#define _HWMOD_SKIP_ENABLE (1 << 3) + +/* + * omap_hwmod._state definitions + * + * INITIALIZED: reset (optionally), initialized, enabled, disabled + * (optionally) + * + * + */ +#define _HWMOD_STATE_UNKNOWN 0 +#define _HWMOD_STATE_REGISTERED 1 +#define _HWMOD_STATE_CLKS_INITED 2 +#define _HWMOD_STATE_INITIALIZED 3 +#define _HWMOD_STATE_ENABLED 4 +#define _HWMOD_STATE_IDLE 5 +#define _HWMOD_STATE_DISABLED 6 + +/** + * struct omap_hwmod_class - the type of an IP block + * @name: name of the hwmod_class + * @sysc: device SYSCONFIG/SYSSTATUS register data + * @rev: revision of the IP class + * @pre_shutdown: ptr to fn to be executed immediately prior to device shutdown + * @reset: ptr to fn to be executed in place of the standard hwmod reset fn + * + * Represent the class of a OMAP hardware "modules" (e.g. timer, + * smartreflex, gpio, uart...) + * + * @pre_shutdown is a function that will be run immediately before + * hwmod clocks are disabled, etc. It is intended for use for hwmods + * like the MPU watchdog, which cannot be disabled with the standard + * omap_hwmod_shutdown(). The function should return 0 upon success, + * or some negative error upon failure. Returning an error will cause + * omap_hwmod_shutdown() to abort the device shutdown and return an + * error. + * + * If @reset is defined, then the function it points to will be + * executed in place of the standard hwmod _reset() code in + * mach-omap2/omap_hwmod.c. This is needed for IP blocks which have + * unusual reset sequences - usually processor IP blocks like the IVA. + */ +struct omap_hwmod_class { + const char *name; + struct omap_hwmod_class_sysconfig *sysc; + u32 rev; + int (*pre_shutdown)(struct omap_hwmod *oh); + int (*reset)(struct omap_hwmod *oh); +}; + +/** + * struct omap_hwmod_link - internal structure linking hwmods with ocp_ifs + * @ocp_if: OCP interface structure record pointer + * @node: list_head pointing to next struct omap_hwmod_link in a list + */ +struct omap_hwmod_link { + struct omap_hwmod_ocp_if *ocp_if; + struct list_head node; +}; + +/** + * struct omap_hwmod - integration data for OMAP hardware "modules" (IP blocks) + * @name: name of the hwmod + * @class: struct omap_hwmod_class * to the class of this hwmod + * @od: struct omap_device currently associated with this hwmod (internal use) + * @mpu_irqs: ptr to an array of MPU IRQs + * @sdma_reqs: ptr to an array of System DMA request IDs + * @prcm: PRCM data pertaining to this hwmod + * @main_clk: main clock: OMAP clock name + * @_clk: pointer to the main struct clk (filled in at runtime) + * @opt_clks: other device clocks that drivers can request (0..*) + * @voltdm: pointer to voltage domain (filled in at runtime) + * @dev_attr: arbitrary device attributes that can be passed to the driver + * @_sysc_cache: internal-use hwmod flags + * @_mpu_rt_va: cached register target start address (internal use) + * @_mpu_port: cached MPU register target slave (internal use) + * @opt_clks_cnt: number of @opt_clks + * @master_cnt: number of @master entries + * @slaves_cnt: number of @slave entries + * @response_lat: device OCP response latency (in interface clock cycles) + * @_int_flags: internal-use hwmod flags + * @_state: internal-use hwmod state + * @_postsetup_state: internal-use state to leave the hwmod in after _setup() + * @flags: hwmod flags (documented below) + * @_lock: spinlock serializing operations on this hwmod + * @node: list node for hwmod list (internal use) + * + * @main_clk refers to this module's "main clock," which for our + * purposes is defined as "the functional clock needed for register + * accesses to complete." Modules may not have a main clock if the + * interface clock also serves as a main clock. + * + * Parameter names beginning with an underscore are managed internally by + * the omap_hwmod code and should not be set during initialization. + * + * @masters and @slaves are now deprecated. + */ +struct omap_hwmod { + const char *name; + struct omap_hwmod_class *class; + struct omap_device *od; + struct omap_hwmod_mux_info *mux; + struct omap_hwmod_irq_info *mpu_irqs; + struct omap_hwmod_dma_info *sdma_reqs; + struct omap_hwmod_rst_info *rst_lines; + union { + struct omap_hwmod_omap2_prcm omap2; + struct omap_hwmod_omap4_prcm omap4; + } prcm; + const char *main_clk; + struct clk *_clk; + struct omap_hwmod_opt_clk *opt_clks; + char *clkdm_name; + struct clockdomain *clkdm; + struct list_head master_ports; /* connect to *_IA */ + struct list_head slave_ports; /* connect to *_TA */ + void *dev_attr; + u32 _sysc_cache; + void __iomem *_mpu_rt_va; + spinlock_t _lock; + struct list_head node; + struct omap_hwmod_ocp_if *_mpu_port; + u16 flags; + u8 response_lat; + u8 rst_lines_cnt; + u8 opt_clks_cnt; + u8 masters_cnt; + u8 slaves_cnt; + u8 hwmods_cnt; + u8 _int_flags; + u8 _state; + u8 _postsetup_state; +}; + +struct omap_hwmod *omap_hwmod_lookup(const char *name); +int omap_hwmod_for_each(int (*fn)(struct omap_hwmod *oh, void *data), + void *data); + +int __init omap_hwmod_setup_one(const char *name); + +int omap_hwmod_enable(struct omap_hwmod *oh); +int omap_hwmod_idle(struct omap_hwmod *oh); +int omap_hwmod_shutdown(struct omap_hwmod *oh); + +int omap_hwmod_assert_hardreset(struct omap_hwmod *oh, const char *name); +int omap_hwmod_deassert_hardreset(struct omap_hwmod *oh, const char *name); +int omap_hwmod_read_hardreset(struct omap_hwmod *oh, const char *name); + +int omap_hwmod_enable_clocks(struct omap_hwmod *oh); +int omap_hwmod_disable_clocks(struct omap_hwmod *oh); + +int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode); +int omap_hwmod_set_ocp_autoidle(struct omap_hwmod *oh, u8 autoidle); + +int omap_hwmod_reset(struct omap_hwmod *oh); +void omap_hwmod_ocp_barrier(struct omap_hwmod *oh); + +void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs); +u32 omap_hwmod_read(struct omap_hwmod *oh, u16 reg_offs); +int omap_hwmod_softreset(struct omap_hwmod *oh); + +int omap_hwmod_count_resources(struct omap_hwmod *oh); +int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res); +int omap_hwmod_fill_dma_resources(struct omap_hwmod *oh, struct resource *res); +int omap_hwmod_get_resource_byname(struct omap_hwmod *oh, unsigned int type, + const char *name, struct resource *res); + +struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh); +void __iomem *omap_hwmod_get_mpu_rt_va(struct omap_hwmod *oh); + +int omap_hwmod_add_initiator_dep(struct omap_hwmod *oh, + struct omap_hwmod *init_oh); +int omap_hwmod_del_initiator_dep(struct omap_hwmod *oh, + struct omap_hwmod *init_oh); + +int omap_hwmod_enable_wakeup(struct omap_hwmod *oh); +int omap_hwmod_disable_wakeup(struct omap_hwmod *oh); + +int omap_hwmod_for_each_by_class(const char *classname, + int (*fn)(struct omap_hwmod *oh, + void *user), + void *user); + +int omap_hwmod_set_postsetup_state(struct omap_hwmod *oh, u8 state); +int omap_hwmod_get_context_loss_count(struct omap_hwmod *oh); + +int omap_hwmod_no_setup_reset(struct omap_hwmod *oh); + +int omap_hwmod_pad_route_irq(struct omap_hwmod *oh, int pad_idx, int irq_idx); + +extern void __init omap_hwmod_init(void); + +const char *omap_hwmod_get_main_clk(struct omap_hwmod *oh); + +/* + * Chip variant-specific hwmod init routines - XXX should be converted + * to use initcalls once the initial boot ordering is straightened out + */ +extern int omap2420_hwmod_init(void); +extern int omap2430_hwmod_init(void); +extern int omap3xxx_hwmod_init(void); +extern int omap44xx_hwmod_init(void); +extern int am33xx_hwmod_init(void); + +extern int __init omap_hwmod_register_links(struct omap_hwmod_ocp_if **ois); + +#endif diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c index b5db600..a8b3368 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -12,21 +12,24 @@ * XXX handle crossbar/shared link difference for L3? * XXX these should be marked initdata for multi-OMAP kernels */ + +#include <linux/i2c-omap.h> #include <linux/platform_data/spi-omap2-mcspi.h> -#include <plat/omap_hwmod.h> -#include <plat/dma.h> -#include <plat/serial.h> -#include <plat/i2c.h> +#include <plat-omap/dma-omap.h> #include <plat/dmtimer.h> + +#include "omap_hwmod.h" #include "l3_2xxx.h" #include "l4_2xxx.h" -#include <plat/mmc.h> #include "omap_hwmod_common_data.h" #include "cm-regbits-24xx.h" #include "prm-regbits-24xx.h" +#include "i2c.h" +#include "mmc.h" +#include "serial.h" #include "wd_timer.h" /* diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index c455e41..dc768c5 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -12,21 +12,23 @@ * XXX handle crossbar/shared link difference for L3? * XXX these should be marked initdata for multi-OMAP kernels */ + +#include <linux/i2c-omap.h> #include <linux/platform_data/asoc-ti-mcbsp.h> #include <linux/platform_data/spi-omap2-mcspi.h> -#include <plat/omap_hwmod.h> -#include <plat/dma.h> -#include <plat/serial.h> -#include <plat/i2c.h> +#include <plat-omap/dma-omap.h> #include <plat/dmtimer.h> -#include <plat/mmc.h> + +#include "omap_hwmod.h" +#include "mmc.h" #include "l3_2xxx.h" #include "soc.h" #include "omap_hwmod_common_data.h" #include "prm-regbits-24xx.h" #include "cm-regbits-24xx.h" +#include "i2c.h" #include "wd_timer.h" /* diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_interconnect_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_interconnect_data.c index cbb4ef6..0413dab 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_interconnect_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_interconnect_data.c @@ -13,8 +13,7 @@ */ #include <asm/sizes.h> -#include <plat/omap_hwmod.h> -#include <plat/serial.h> +#include "omap_hwmod.h" #include "omap_hwmod_common_data.h" diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c index 8851bbb..40d6c93 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c @@ -9,13 +9,14 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <plat/omap_hwmod.h> -#include <plat/serial.h> -#include <plat/dma.h> -#include <plat/common.h> + +#include <plat-omap/dma-omap.h> + +#include "omap_hwmod.h" #include "hdq1w.h" #include "omap_hwmod_common_data.h" +#include "dma.h" /* UART */ diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c index 1a1287d..47901a5 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c @@ -13,10 +13,10 @@ */ #include <asm/sizes.h> -#include <plat/omap_hwmod.h> -#include <plat/serial.h> +#include "omap_hwmod.h" #include "l3_2xxx.h" #include "l4_2xxx.h" +#include "serial.h" #include "omap_hwmod_common_data.h" diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c index bd9220e..a0116d0 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c @@ -8,13 +8,13 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <plat/omap_hwmod.h> -#include <plat/serial.h> + #include <linux/platform_data/gpio-omap.h> -#include <plat/dma.h> +#include <plat-omap/dma-omap.h> #include <plat/dmtimer.h> #include <linux/platform_data/spi-omap2-mcspi.h> +#include "omap_hwmod.h" #include "omap_hwmod_common_data.h" #include "cm-regbits-24xx.h" #include "prm-regbits-24xx.h" diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c index 59d5c1c..ad8d43b 100644 --- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c @@ -14,13 +14,11 @@ * GNU General Public License for more details. */ -#include <plat/omap_hwmod.h> -#include <plat/cpu.h> +#include <linux/i2c-omap.h> + +#include "omap_hwmod.h" #include <linux/platform_data/gpio-omap.h> #include <linux/platform_data/spi-omap2-mcspi.h> -#include <plat/dma.h> -#include <plat/mmc.h> -#include <plat/i2c.h> #include "omap_hwmod_common_data.h" @@ -28,6 +26,8 @@ #include "cm33xx.h" #include "prm33xx.h" #include "prm-regbits-33xx.h" +#include "i2c.h" +#include "mmc.h" /* * IP blocks diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index f67b7ee..1150f82 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -14,28 +14,32 @@ * * XXX these should be marked initdata for multi-OMAP kernels */ + +#include <linux/i2c-omap.h> #include <linux/power/smartreflex.h> #include <linux/platform_data/gpio-omap.h> -#include <plat/omap_hwmod.h> -#include <plat/dma.h> -#include <plat/serial.h> +#include <plat-omap/dma-omap.h> #include "l3_3xxx.h" #include "l4_3xxx.h" -#include <plat/i2c.h> -#include <plat/mmc.h> #include <linux/platform_data/asoc-ti-mcbsp.h> #include <linux/platform_data/spi-omap2-mcspi.h> +#include <linux/platform_data/iommu-omap.h> #include <plat/dmtimer.h> -#include <plat/iommu.h> #include "am35xx.h" #include "soc.h" +#include "omap_hwmod.h" #include "omap_hwmod_common_data.h" #include "prm-regbits-34xx.h" #include "cm-regbits-34xx.h" + +#include "dma.h" +#include "i2c.h" +#include "mmc.h" #include "wd_timer.h" +#include "serial.h" /* * OMAP3xxx hardware module integration data diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 0b1249e..caf946d 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -22,22 +22,23 @@ #include <linux/platform_data/gpio-omap.h> #include <linux/power/smartreflex.h> #include <linux/platform_data/omap_ocp2scp.h> +#include <linux/i2c-omap.h> + +#include <plat-omap/dma-omap.h> -#include <plat/omap_hwmod.h> -#include <plat/i2c.h> -#include <plat/dma.h> #include <linux/platform_data/spi-omap2-mcspi.h> #include <linux/platform_data/asoc-ti-mcbsp.h> -#include <plat/mmc.h> +#include <linux/platform_data/iommu-omap.h> #include <plat/dmtimer.h> -#include <plat/common.h> -#include <plat/iommu.h> +#include "omap_hwmod.h" #include "omap_hwmod_common_data.h" #include "cm1_44xx.h" #include "cm2_44xx.h" #include "prm44xx.h" #include "prm-regbits-44xx.h" +#include "i2c.h" +#include "mmc.h" #include "wd_timer.h" /* Base offset for all OMAP4 interrupts external to MPUSS */ diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.c b/arch/arm/mach-omap2/omap_hwmod_common_data.c index 9f1ccdc..79d623b 100644 --- a/arch/arm/mach-omap2/omap_hwmod_common_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_common_data.c @@ -16,7 +16,7 @@ * data and their integration with other OMAP modules and Linux. */ -#include <plat/omap_hwmod.h> +#include "omap_hwmod.h" #include "omap_hwmod_common_data.h" diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.h b/arch/arm/mach-omap2/omap_hwmod_common_data.h index 2bc8f17..cfcce29 100644 --- a/arch/arm/mach-omap2/omap_hwmod_common_data.h +++ b/arch/arm/mach-omap2/omap_hwmod_common_data.h @@ -13,7 +13,7 @@ #ifndef __ARCH_ARM_MACH_OMAP2_OMAP_HWMOD_COMMON_DATA_H #define __ARCH_ARM_MACH_OMAP2_OMAP_HWMOD_COMMON_DATA_H -#include <plat/omap_hwmod.h> +#include "omap_hwmod.h" #include "common.h" #include "display.h" diff --git a/arch/arm/mach-omap2/omap_opp_data.h b/arch/arm/mach-omap2/omap_opp_data.h index c784c12..7e437bf 100644 --- a/arch/arm/mach-omap2/omap_opp_data.h +++ b/arch/arm/mach-omap2/omap_opp_data.h @@ -19,7 +19,7 @@ #ifndef __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H #define __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H -#include <plat/omap_hwmod.h> +#include "omap_hwmod.h" #include "voltage.h" diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c index d992db8..4d76a3c 100644 --- a/arch/arm/mach-omap2/omap_phy_internal.c +++ b/arch/arm/mach-omap2/omap_phy_internal.c @@ -27,11 +27,11 @@ #include <linux/io.h> #include <linux/err.h> #include <linux/usb.h> - -#include <plat/usb.h> +#include <linux/usb/musb.h> #include "soc.h" #include "control.h" +#include "usb.h" void am35x_musb_reset(void) { diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c index f515a1a..2bf35dc 100644 --- a/arch/arm/mach-omap2/omap_twl.c +++ b/arch/arm/mach-omap2/omap_twl.c @@ -18,6 +18,7 @@ #include <linux/kernel.h> #include <linux/i2c/twl.h> +#include "soc.h" #include "voltage.h" #include "pm.h" diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c index 58e16ae..bd41d59 100644 --- a/arch/arm/mach-omap2/opp.c +++ b/arch/arm/mach-omap2/opp.c @@ -20,7 +20,7 @@ #include <linux/opp.h> #include <linux/cpu.h> -#include <plat/omap_device.h> +#include "omap_device.h" #include "omap_opp_data.h" diff --git a/arch/arm/mach-omap2/opp3xxx_data.c b/arch/arm/mach-omap2/opp3xxx_data.c index 75cef5f..62772e0 100644 --- a/arch/arm/mach-omap2/opp3xxx_data.c +++ b/arch/arm/mach-omap2/opp3xxx_data.c @@ -19,6 +19,7 @@ */ #include <linux/module.h> +#include "soc.h" #include "control.h" #include "omap_opp_data.h" #include "pm.h" diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c index 46092cd..3cf4fdfd 100644 --- a/arch/arm/mach-omap2/pm-debug.c +++ b/arch/arm/mach-omap2/pm-debug.c @@ -27,12 +27,13 @@ #include <linux/module.h> #include <linux/slab.h> -#include <plat/clock.h> +#include "clock.h" #include "powerdomain.h" #include "clockdomain.h" #include <plat/dmtimer.h> -#include <plat/omap-pm.h> +#include "omap-pm.h" +#include "soc.h" #include "cm2xxx_3xxx.h" #include "prm2xxx_3xxx.h" #include "pm.h" diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c index ea61c32..331478f 100644 --- a/arch/arm/mach-omap2/pm.c +++ b/arch/arm/mach-omap2/pm.c @@ -20,10 +20,11 @@ #include <asm/system_misc.h> -#include <plat/omap-pm.h> -#include <plat/omap_device.h> +#include "omap-pm.h" +#include "omap_device.h" #include "common.h" +#include "soc.h" #include "prcm-common.h" #include "voltage.h" #include "powerdomain.h" diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c index 8af6cd6..13e1f43 100644 --- a/arch/arm/mach-omap2/pm24xx.c +++ b/arch/arm/mach-omap2/pm24xx.c @@ -31,21 +31,24 @@ #include <linux/gpio.h> #include <linux/platform_data/gpio-omap.h> +#include <asm/fncpy.h> + #include <asm/mach/time.h> #include <asm/mach/irq.h> #include <asm/mach-types.h> #include <asm/system_misc.h> -#include <plat/clock.h> -#include <plat/sram.h> -#include <plat/dma.h> +#include <plat-omap/dma-omap.h> +#include "soc.h" #include "common.h" -#include "prm2xxx_3xxx.h" +#include "clock.h" +#include "prm2xxx.h" #include "prm-regbits-24xx.h" -#include "cm2xxx_3xxx.h" +#include "cm2xxx.h" #include "cm-regbits-24xx.h" #include "sdrc.h" +#include "sram.h" #include "pm.h" #include "control.h" #include "powerdomain.h" diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 3a904de..a8b43da 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -32,25 +32,25 @@ #include <trace/events/power.h> +#include <asm/fncpy.h> #include <asm/suspend.h> #include <asm/system_misc.h> -#include <plat/sram.h> #include "clockdomain.h" #include "powerdomain.h" -#include <plat/sdrc.h> #include <plat/prcm.h> -#include <plat/gpmc.h> -#include <plat/dma.h> +#include <plat-omap/dma-omap.h> +#include "soc.h" #include "common.h" -#include "cm2xxx_3xxx.h" +#include "cm3xxx.h" #include "cm-regbits-34xx.h" +#include "gpmc.h" #include "prm-regbits-34xx.h" - -#include "prm2xxx_3xxx.h" +#include "prm3xxx.h" #include "pm.h" #include "sdrc.h" +#include "sram.h" #include "control.h" /* pm34xx errata defined in pm.h */ diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index 04922d1..7da75ae 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -18,6 +18,7 @@ #include <linux/slab.h> #include <asm/system_misc.h> +#include "soc.h" #include "common.h" #include "clockdomain.h" #include "powerdomain.h" diff --git a/arch/arm/mach-omap2/pmu.c b/arch/arm/mach-omap2/pmu.c index 031e2fb..250d909 100644 --- a/arch/arm/mach-omap2/pmu.c +++ b/arch/arm/mach-omap2/pmu.c @@ -15,8 +15,9 @@ #include <asm/pmu.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> +#include "soc.h" +#include "omap_hwmod.h" +#include "omap_device.h" static char *omap2_pmu_oh_names[] = {"mpu"}; static char *omap3_pmu_oh_names[] = {"mpu", "debugss"}; diff --git a/arch/arm/mach-omap2/powerdomain.h b/arch/arm/mach-omap2/powerdomain.h index baee906..5277d56eb 100644 --- a/arch/arm/mach-omap2/powerdomain.h +++ b/arch/arm/mach-omap2/powerdomain.h @@ -22,8 +22,6 @@ #include <linux/atomic.h> -#include <plat/cpu.h> - #include "voltage.h" /* Powerdomain basic power states */ diff --git a/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c b/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c deleted file mode 100644 index 3950ccf..0000000 --- a/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * OMAP2 and OMAP3 powerdomain control - * - * Copyright (C) 2009-2011 Texas Instruments, Inc. - * Copyright (C) 2007-2009 Nokia Corporation - * - * Derived from mach-omap2/powerdomain.c written by Paul Walmsley - * Rajendra Nayak <rnayak@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/io.h> -#include <linux/errno.h> -#include <linux/delay.h> -#include <linux/bug.h> - -#include <plat/prcm.h> - -#include "powerdomain.h" -#include "prm.h" -#include "prm-regbits-24xx.h" -#include "prm-regbits-34xx.h" - - -/* Common functions across OMAP2 and OMAP3 */ -static int omap2_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) -{ - omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, - (pwrst << OMAP_POWERSTATE_SHIFT), - pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); - return 0; -} - -static int omap2_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) -{ - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP2_PM_PWSTCTRL, - OMAP_POWERSTATE_MASK); -} - -static int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm) -{ - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP2_PM_PWSTST, - OMAP_POWERSTATEST_MASK); -} - -static int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, - u8 pwrst) -{ - u32 m; - - m = omap2_pwrdm_get_mem_bank_onstate_mask(bank); - - omap2_prm_rmw_mod_reg_bits(m, (pwrst << __ffs(m)), pwrdm->prcm_offs, - OMAP2_PM_PWSTCTRL); - - return 0; -} - -static int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, - u8 pwrst) -{ - u32 m; - - m = omap2_pwrdm_get_mem_bank_retst_mask(bank); - - omap2_prm_rmw_mod_reg_bits(m, (pwrst << __ffs(m)), pwrdm->prcm_offs, - OMAP2_PM_PWSTCTRL); - - return 0; -} - -static int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) -{ - u32 m; - - m = omap2_pwrdm_get_mem_bank_stst_mask(bank); - - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP2_PM_PWSTST, - m); -} - -static int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) -{ - u32 m; - - m = omap2_pwrdm_get_mem_bank_retst_mask(bank); - - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP2_PM_PWSTCTRL, m); -} - -static int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) -{ - u32 v; - - v = pwrst << __ffs(OMAP3430_LOGICL1CACHERETSTATE_MASK); - omap2_prm_rmw_mod_reg_bits(OMAP3430_LOGICL1CACHERETSTATE_MASK, v, - pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); - - return 0; -} - -static int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm) -{ - u32 c = 0; - - /* - * REVISIT: pwrdm_wait_transition() may be better implemented - * via a callback and a periodic timer check -- how long do we expect - * powerdomain transitions to take? - */ - - /* XXX Is this udelay() value meaningful? */ - while ((omap2_prm_read_mod_reg(pwrdm->prcm_offs, OMAP2_PM_PWSTST) & - OMAP_INTRANSITION_MASK) && - (c++ < PWRDM_TRANSITION_BAILOUT)) - udelay(1); - - if (c > PWRDM_TRANSITION_BAILOUT) { - pr_err("powerdomain: %s: waited too long to complete transition\n", - pwrdm->name); - return -EAGAIN; - } - - pr_debug("powerdomain: completed transition in %d loops\n", c); - - return 0; -} - -/* Applicable only for OMAP3. Not supported on OMAP2 */ -static int omap3_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) -{ - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP3430_PM_PREPWSTST, - OMAP3430_LASTPOWERSTATEENTERED_MASK); -} - -static int omap3_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) -{ - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP2_PM_PWSTST, - OMAP3430_LOGICSTATEST_MASK); -} - -static int omap3_pwrdm_read_logic_retst(struct powerdomain *pwrdm) -{ - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP2_PM_PWSTCTRL, - OMAP3430_LOGICSTATEST_MASK); -} - -static int omap3_pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm) -{ - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP3430_PM_PREPWSTST, - OMAP3430_LASTLOGICSTATEENTERED_MASK); -} - -static int omap3_get_mem_bank_lastmemst_mask(u8 bank) -{ - switch (bank) { - case 0: - return OMAP3430_LASTMEM1STATEENTERED_MASK; - case 1: - return OMAP3430_LASTMEM2STATEENTERED_MASK; - case 2: - return OMAP3430_LASTSHAREDL2CACHEFLATSTATEENTERED_MASK; - case 3: - return OMAP3430_LASTL2FLATMEMSTATEENTERED_MASK; - default: - WARN_ON(1); /* should never happen */ - return -EEXIST; - } - return 0; -} - -static int omap3_pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank) -{ - u32 m; - - m = omap3_get_mem_bank_lastmemst_mask(bank); - - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP3430_PM_PREPWSTST, m); -} - -static int omap3_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) -{ - omap2_prm_write_mod_reg(0, pwrdm->prcm_offs, OMAP3430_PM_PREPWSTST); - return 0; -} - -static int omap3_pwrdm_enable_hdwr_sar(struct powerdomain *pwrdm) -{ - return omap2_prm_rmw_mod_reg_bits(0, - 1 << OMAP3430ES2_SAVEANDRESTORE_SHIFT, - pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); -} - -static int omap3_pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm) -{ - return omap2_prm_rmw_mod_reg_bits(1 << OMAP3430ES2_SAVEANDRESTORE_SHIFT, - 0, pwrdm->prcm_offs, - OMAP2_PM_PWSTCTRL); -} - -struct pwrdm_ops omap2_pwrdm_operations = { - .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, - .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, - .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, - .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, - .pwrdm_set_mem_onst = omap2_pwrdm_set_mem_onst, - .pwrdm_set_mem_retst = omap2_pwrdm_set_mem_retst, - .pwrdm_read_mem_pwrst = omap2_pwrdm_read_mem_pwrst, - .pwrdm_read_mem_retst = omap2_pwrdm_read_mem_retst, - .pwrdm_wait_transition = omap2_pwrdm_wait_transition, -}; - -struct pwrdm_ops omap3_pwrdm_operations = { - .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, - .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, - .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, - .pwrdm_read_prev_pwrst = omap3_pwrdm_read_prev_pwrst, - .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, - .pwrdm_read_logic_pwrst = omap3_pwrdm_read_logic_pwrst, - .pwrdm_read_logic_retst = omap3_pwrdm_read_logic_retst, - .pwrdm_read_prev_logic_pwrst = omap3_pwrdm_read_prev_logic_pwrst, - .pwrdm_set_mem_onst = omap2_pwrdm_set_mem_onst, - .pwrdm_set_mem_retst = omap2_pwrdm_set_mem_retst, - .pwrdm_read_mem_pwrst = omap2_pwrdm_read_mem_pwrst, - .pwrdm_read_mem_retst = omap2_pwrdm_read_mem_retst, - .pwrdm_read_prev_mem_pwrst = omap3_pwrdm_read_prev_mem_pwrst, - .pwrdm_clear_all_prev_pwrst = omap3_pwrdm_clear_all_prev_pwrst, - .pwrdm_enable_hdwr_sar = omap3_pwrdm_enable_hdwr_sar, - .pwrdm_disable_hdwr_sar = omap3_pwrdm_disable_hdwr_sar, - .pwrdm_wait_transition = omap2_pwrdm_wait_transition, -}; diff --git a/arch/arm/mach-omap2/powerdomain33xx.c b/arch/arm/mach-omap2/powerdomain33xx.c deleted file mode 100644 index 67c5663..0000000 --- a/arch/arm/mach-omap2/powerdomain33xx.c +++ /dev/null @@ -1,229 +0,0 @@ -/* - * AM33XX Powerdomain control - * - * Copyright (C) 2011-2012 Texas Instruments Incorporated - http://www.ti.com/ - * - * Derived from mach-omap2/powerdomain44xx.c written by Rajendra Nayak - * <rnayak@ti.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/io.h> -#include <linux/errno.h> -#include <linux/delay.h> - -#include <plat/prcm.h> - -#include "powerdomain.h" -#include "prm33xx.h" -#include "prm-regbits-33xx.h" - - -static int am33xx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) -{ - am33xx_prm_rmw_reg_bits(OMAP_POWERSTATE_MASK, - (pwrst << OMAP_POWERSTATE_SHIFT), - pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); - return 0; -} - -static int am33xx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) -{ - u32 v; - - v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); - v &= OMAP_POWERSTATE_MASK; - v >>= OMAP_POWERSTATE_SHIFT; - - return v; -} - -static int am33xx_pwrdm_read_pwrst(struct powerdomain *pwrdm) -{ - u32 v; - - v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); - v &= OMAP_POWERSTATEST_MASK; - v >>= OMAP_POWERSTATEST_SHIFT; - - return v; -} - -static int am33xx_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) -{ - u32 v; - - v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); - v &= AM33XX_LASTPOWERSTATEENTERED_MASK; - v >>= AM33XX_LASTPOWERSTATEENTERED_SHIFT; - - return v; -} - -static int am33xx_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm) -{ - am33xx_prm_rmw_reg_bits(AM33XX_LOWPOWERSTATECHANGE_MASK, - (1 << AM33XX_LOWPOWERSTATECHANGE_SHIFT), - pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); - return 0; -} - -static int am33xx_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) -{ - am33xx_prm_rmw_reg_bits(AM33XX_LASTPOWERSTATEENTERED_MASK, - AM33XX_LASTPOWERSTATEENTERED_MASK, - pwrdm->prcm_offs, pwrdm->pwrstst_offs); - return 0; -} - -static int am33xx_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) -{ - u32 m; - - m = pwrdm->logicretstate_mask; - if (!m) - return -EINVAL; - - am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), - pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); - - return 0; -} - -static int am33xx_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) -{ - u32 v; - - v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); - v &= AM33XX_LOGICSTATEST_MASK; - v >>= AM33XX_LOGICSTATEST_SHIFT; - - return v; -} - -static int am33xx_pwrdm_read_logic_retst(struct powerdomain *pwrdm) -{ - u32 v, m; - - m = pwrdm->logicretstate_mask; - if (!m) - return -EINVAL; - - v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); - v &= m; - v >>= __ffs(m); - - return v; -} - -static int am33xx_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, - u8 pwrst) -{ - u32 m; - - m = pwrdm->mem_on_mask[bank]; - if (!m) - return -EINVAL; - - am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), - pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); - - return 0; -} - -static int am33xx_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, - u8 pwrst) -{ - u32 m; - - m = pwrdm->mem_ret_mask[bank]; - if (!m) - return -EINVAL; - - am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), - pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); - - return 0; -} - -static int am33xx_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) -{ - u32 m, v; - - m = pwrdm->mem_pwrst_mask[bank]; - if (!m) - return -EINVAL; - - v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); - v &= m; - v >>= __ffs(m); - - return v; -} - -static int am33xx_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) -{ - u32 m, v; - - m = pwrdm->mem_retst_mask[bank]; - if (!m) - return -EINVAL; - - v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); - v &= m; - v >>= __ffs(m); - - return v; -} - -static int am33xx_pwrdm_wait_transition(struct powerdomain *pwrdm) -{ - u32 c = 0; - - /* - * REVISIT: pwrdm_wait_transition() may be better implemented - * via a callback and a periodic timer check -- how long do we expect - * powerdomain transitions to take? - */ - - /* XXX Is this udelay() value meaningful? */ - while ((am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs) - & OMAP_INTRANSITION_MASK) && - (c++ < PWRDM_TRANSITION_BAILOUT)) - udelay(1); - - if (c > PWRDM_TRANSITION_BAILOUT) { - pr_err("powerdomain: %s: waited too long to complete transition\n", - pwrdm->name); - return -EAGAIN; - } - - pr_debug("powerdomain: completed transition in %d loops\n", c); - - return 0; -} - -struct pwrdm_ops am33xx_pwrdm_operations = { - .pwrdm_set_next_pwrst = am33xx_pwrdm_set_next_pwrst, - .pwrdm_read_next_pwrst = am33xx_pwrdm_read_next_pwrst, - .pwrdm_read_pwrst = am33xx_pwrdm_read_pwrst, - .pwrdm_read_prev_pwrst = am33xx_pwrdm_read_prev_pwrst, - .pwrdm_set_logic_retst = am33xx_pwrdm_set_logic_retst, - .pwrdm_read_logic_pwrst = am33xx_pwrdm_read_logic_pwrst, - .pwrdm_read_logic_retst = am33xx_pwrdm_read_logic_retst, - .pwrdm_clear_all_prev_pwrst = am33xx_pwrdm_clear_all_prev_pwrst, - .pwrdm_set_lowpwrstchange = am33xx_pwrdm_set_lowpwrstchange, - .pwrdm_read_mem_pwrst = am33xx_pwrdm_read_mem_pwrst, - .pwrdm_read_mem_retst = am33xx_pwrdm_read_mem_retst, - .pwrdm_set_mem_onst = am33xx_pwrdm_set_mem_onst, - .pwrdm_set_mem_retst = am33xx_pwrdm_set_mem_retst, - .pwrdm_wait_transition = am33xx_pwrdm_wait_transition, -}; diff --git a/arch/arm/mach-omap2/powerdomain44xx.c b/arch/arm/mach-omap2/powerdomain44xx.c deleted file mode 100644 index aceb4f4..0000000 --- a/arch/arm/mach-omap2/powerdomain44xx.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * OMAP4 powerdomain control - * - * Copyright (C) 2009-2010, 2012 Texas Instruments, Inc. - * Copyright (C) 2007-2009 Nokia Corporation - * - * Derived from mach-omap2/powerdomain.c written by Paul Walmsley - * Rajendra Nayak <rnayak@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/io.h> -#include <linux/errno.h> -#include <linux/delay.h> -#include <linux/bug.h> - -#include "powerdomain.h" -#include <plat/prcm.h> -#include "prm2xxx_3xxx.h" -#include "prm44xx.h" -#include "prminst44xx.h" -#include "prm-regbits-44xx.h" - -static int omap4_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) -{ - omap4_prminst_rmw_inst_reg_bits(OMAP_POWERSTATE_MASK, - (pwrst << OMAP_POWERSTATE_SHIFT), - pwrdm->prcm_partition, - pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL); - return 0; -} - -static int omap4_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) -{ - u32 v; - - v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTCTRL); - v &= OMAP_POWERSTATE_MASK; - v >>= OMAP_POWERSTATE_SHIFT; - - return v; -} - -static int omap4_pwrdm_read_pwrst(struct powerdomain *pwrdm) -{ - u32 v; - - v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTST); - v &= OMAP_POWERSTATEST_MASK; - v >>= OMAP_POWERSTATEST_SHIFT; - - return v; -} - -static int omap4_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) -{ - u32 v; - - v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTST); - v &= OMAP4430_LASTPOWERSTATEENTERED_MASK; - v >>= OMAP4430_LASTPOWERSTATEENTERED_SHIFT; - - return v; -} - -static int omap4_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm) -{ - omap4_prminst_rmw_inst_reg_bits(OMAP4430_LOWPOWERSTATECHANGE_MASK, - (1 << OMAP4430_LOWPOWERSTATECHANGE_SHIFT), - pwrdm->prcm_partition, - pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL); - return 0; -} - -static int omap4_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) -{ - omap4_prminst_rmw_inst_reg_bits(OMAP4430_LASTPOWERSTATEENTERED_MASK, - OMAP4430_LASTPOWERSTATEENTERED_MASK, - pwrdm->prcm_partition, - pwrdm->prcm_offs, OMAP4_PM_PWSTST); - return 0; -} - -static int omap4_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) -{ - u32 v; - - v = pwrst << __ffs(OMAP4430_LOGICRETSTATE_MASK); - omap4_prminst_rmw_inst_reg_bits(OMAP4430_LOGICRETSTATE_MASK, v, - pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTCTRL); - - return 0; -} - -static int omap4_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, - u8 pwrst) -{ - u32 m; - - m = omap2_pwrdm_get_mem_bank_onstate_mask(bank); - - omap4_prminst_rmw_inst_reg_bits(m, (pwrst << __ffs(m)), - pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTCTRL); - - return 0; -} - -static int omap4_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, - u8 pwrst) -{ - u32 m; - - m = omap2_pwrdm_get_mem_bank_retst_mask(bank); - - omap4_prminst_rmw_inst_reg_bits(m, (pwrst << __ffs(m)), - pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTCTRL); - - return 0; -} - -static int omap4_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) -{ - u32 v; - - v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTST); - v &= OMAP4430_LOGICSTATEST_MASK; - v >>= OMAP4430_LOGICSTATEST_SHIFT; - - return v; -} - -static int omap4_pwrdm_read_logic_retst(struct powerdomain *pwrdm) -{ - u32 v; - - v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTCTRL); - v &= OMAP4430_LOGICRETSTATE_MASK; - v >>= OMAP4430_LOGICRETSTATE_SHIFT; - - return v; -} - -/** - * omap4_pwrdm_read_prev_logic_pwrst - read the previous logic powerstate - * @pwrdm: struct powerdomain * to read the state for - * - * Reads the previous logic powerstate for a powerdomain. This - * function must determine the previous logic powerstate by first - * checking the previous powerstate for the domain. If that was OFF, - * then logic has been lost. If previous state was RETENTION, the - * function reads the setting for the next retention logic state to - * see the actual value. In every other case, the logic is - * retained. Returns either PWRDM_POWER_OFF or PWRDM_POWER_RET - * depending whether the logic was retained or not. - */ -static int omap4_pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm) -{ - int state; - - state = omap4_pwrdm_read_prev_pwrst(pwrdm); - - if (state == PWRDM_POWER_OFF) - return PWRDM_POWER_OFF; - - if (state != PWRDM_POWER_RET) - return PWRDM_POWER_RET; - - return omap4_pwrdm_read_logic_retst(pwrdm); -} - -static int omap4_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) -{ - u32 m, v; - - m = omap2_pwrdm_get_mem_bank_stst_mask(bank); - - v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTST); - v &= m; - v >>= __ffs(m); - - return v; -} - -static int omap4_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) -{ - u32 m, v; - - m = omap2_pwrdm_get_mem_bank_retst_mask(bank); - - v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, - OMAP4_PM_PWSTCTRL); - v &= m; - v >>= __ffs(m); - - return v; -} - -/** - * omap4_pwrdm_read_prev_mem_pwrst - reads the previous memory powerstate - * @pwrdm: struct powerdomain * to read mem powerstate for - * @bank: memory bank index - * - * Reads the previous memory powerstate for a powerdomain. This - * function must determine the previous memory powerstate by first - * checking the previous powerstate for the domain. If that was OFF, - * then logic has been lost. If previous state was RETENTION, the - * function reads the setting for the next memory retention state to - * see the actual value. In every other case, the logic is - * retained. Returns either PWRDM_POWER_OFF or PWRDM_POWER_RET - * depending whether logic was retained or not. - */ -static int omap4_pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank) -{ - int state; - - state = omap4_pwrdm_read_prev_pwrst(pwrdm); - - if (state == PWRDM_POWER_OFF) - return PWRDM_POWER_OFF; - - if (state != PWRDM_POWER_RET) - return PWRDM_POWER_RET; - - return omap4_pwrdm_read_mem_retst(pwrdm, bank); -} - -static int omap4_pwrdm_wait_transition(struct powerdomain *pwrdm) -{ - u32 c = 0; - - /* - * REVISIT: pwrdm_wait_transition() may be better implemented - * via a callback and a periodic timer check -- how long do we expect - * powerdomain transitions to take? - */ - - /* XXX Is this udelay() value meaningful? */ - while ((omap4_prminst_read_inst_reg(pwrdm->prcm_partition, - pwrdm->prcm_offs, - OMAP4_PM_PWSTST) & - OMAP_INTRANSITION_MASK) && - (c++ < PWRDM_TRANSITION_BAILOUT)) - udelay(1); - - if (c > PWRDM_TRANSITION_BAILOUT) { - pr_err("powerdomain: %s: waited too long to complete transition\n", - pwrdm->name); - return -EAGAIN; - } - - pr_debug("powerdomain: completed transition in %d loops\n", c); - - return 0; -} - -struct pwrdm_ops omap4_pwrdm_operations = { - .pwrdm_set_next_pwrst = omap4_pwrdm_set_next_pwrst, - .pwrdm_read_next_pwrst = omap4_pwrdm_read_next_pwrst, - .pwrdm_read_pwrst = omap4_pwrdm_read_pwrst, - .pwrdm_read_prev_pwrst = omap4_pwrdm_read_prev_pwrst, - .pwrdm_set_lowpwrstchange = omap4_pwrdm_set_lowpwrstchange, - .pwrdm_clear_all_prev_pwrst = omap4_pwrdm_clear_all_prev_pwrst, - .pwrdm_set_logic_retst = omap4_pwrdm_set_logic_retst, - .pwrdm_read_logic_pwrst = omap4_pwrdm_read_logic_pwrst, - .pwrdm_read_prev_logic_pwrst = omap4_pwrdm_read_prev_logic_pwrst, - .pwrdm_read_logic_retst = omap4_pwrdm_read_logic_retst, - .pwrdm_read_mem_pwrst = omap4_pwrdm_read_mem_pwrst, - .pwrdm_read_mem_retst = omap4_pwrdm_read_mem_retst, - .pwrdm_read_prev_mem_pwrst = omap4_pwrdm_read_prev_mem_pwrst, - .pwrdm_set_mem_onst = omap4_pwrdm_set_mem_onst, - .pwrdm_set_mem_retst = omap4_pwrdm_set_mem_retst, - .pwrdm_wait_transition = omap4_pwrdm_wait_transition, -}; diff --git a/arch/arm/mach-omap2/powerdomains2xxx_data.c b/arch/arm/mach-omap2/powerdomains2xxx_data.c index 2385c1f..ba520d4 100644 --- a/arch/arm/mach-omap2/powerdomains2xxx_data.c +++ b/arch/arm/mach-omap2/powerdomains2xxx_data.c @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/init.h> +#include "soc.h" #include "powerdomain.h" #include "powerdomains2xxx_3xxx_data.h" diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c index 0f51e03..cff270a 100644 --- a/arch/arm/mach-omap2/prcm.c +++ b/arch/arm/mach-omap2/prcm.c @@ -28,6 +28,7 @@ #include "common.h" #include <plat/prcm.h> +#include "soc.h" #include "clock.h" #include "clock2xxx.h" #include "cm2xxx_3xxx.h" diff --git a/arch/arm/mach-omap2/prm-regbits-24xx.h b/arch/arm/mach-omap2/prm-regbits-24xx.h index 6ac96610..638da6d 100644 --- a/arch/arm/mach-omap2/prm-regbits-24xx.h +++ b/arch/arm/mach-omap2/prm-regbits-24xx.h @@ -14,7 +14,7 @@ * published by the Free Software Foundation. */ -#include "prm2xxx_3xxx.h" +#include "prm2xxx.h" /* Bits shared between registers */ @@ -209,9 +209,13 @@ /* RM_RSTST_WKUP specific bits */ /* 2430 calls EXTWMPU_RST "EXTWARM_RST" and GLOBALWMPU_RST "GLOBALWARM_RST" */ +#define OMAP24XX_EXTWMPU_RST_SHIFT 6 #define OMAP24XX_EXTWMPU_RST_MASK (1 << 6) +#define OMAP24XX_SECU_WD_RST_SHIFT 5 #define OMAP24XX_SECU_WD_RST_MASK (1 << 5) +#define OMAP24XX_MPU_WD_RST_SHIFT 4 #define OMAP24XX_MPU_WD_RST_MASK (1 << 4) +#define OMAP24XX_SECU_VIOL_RST_SHIFT 3 #define OMAP24XX_SECU_VIOL_RST_MASK (1 << 3) /* PM_WKEN_WKUP specific bits */ diff --git a/arch/arm/mach-omap2/prm-regbits-34xx.h b/arch/arm/mach-omap2/prm-regbits-34xx.h index 64c087a..838b594 100644 --- a/arch/arm/mach-omap2/prm-regbits-34xx.h +++ b/arch/arm/mach-omap2/prm-regbits-34xx.h @@ -14,7 +14,7 @@ #define __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_34XX_H -#include "prm2xxx_3xxx.h" +#include "prm3xxx.h" /* Shared register bits */ @@ -509,15 +509,25 @@ #define OMAP3430_RSTTIME1_MASK (0xff << 0) /* PRM_RSTST */ +#define OMAP3430_ICECRUSHER_RST_SHIFT 10 #define OMAP3430_ICECRUSHER_RST_MASK (1 << 10) +#define OMAP3430_ICEPICK_RST_SHIFT 9 #define OMAP3430_ICEPICK_RST_MASK (1 << 9) +#define OMAP3430_VDD2_VOLTAGE_MANAGER_RST_SHIFT 8 #define OMAP3430_VDD2_VOLTAGE_MANAGER_RST_MASK (1 << 8) +#define OMAP3430_VDD1_VOLTAGE_MANAGER_RST_SHIFT 7 #define OMAP3430_VDD1_VOLTAGE_MANAGER_RST_MASK (1 << 7) +#define OMAP3430_EXTERNAL_WARM_RST_SHIFT 6 #define OMAP3430_EXTERNAL_WARM_RST_MASK (1 << 6) +#define OMAP3430_SECURE_WD_RST_SHIFT 5 #define OMAP3430_SECURE_WD_RST_MASK (1 << 5) +#define OMAP3430_MPU_WD_RST_SHIFT 4 #define OMAP3430_MPU_WD_RST_MASK (1 << 4) +#define OMAP3430_SECURITY_VIOL_RST_SHIFT 3 #define OMAP3430_SECURITY_VIOL_RST_MASK (1 << 3) +#define OMAP3430_GLOBAL_SW_RST_SHIFT 1 #define OMAP3430_GLOBAL_SW_RST_MASK (1 << 1) +#define OMAP3430_GLOBAL_COLD_RST_SHIFT 0 #define OMAP3430_GLOBAL_COLD_RST_MASK (1 << 0) /* PRM_VOLTCTRL */ diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h index 39d5621..c30ab5d 100644 --- a/arch/arm/mach-omap2/prm.h +++ b/arch/arm/mach-omap2/prm.h @@ -52,5 +52,58 @@ #define OMAP_POWERSTATE_SHIFT 0 #define OMAP_POWERSTATE_MASK (0x3 << 0) +/* + * Standardized OMAP reset source bits + * + * To the extent these happen to match the hardware register bit + * shifts, it's purely coincidental. Used by omap-wdt.c. + * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever + * there are any bits remaining in the global PRM_RSTST register that + * haven't been identified, or when the PRM code for the current SoC + * doesn't know how to interpret the register. + */ +#define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0 +#define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1 +#define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2 +#define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3 +#define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4 +#define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5 +#define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6 +#define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7 +#define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8 +#define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9 +#define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10 +#define OMAP_C2C_RST_SRC_ID_SHIFT 11 +#define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12 + +#ifndef __ASSEMBLER__ + +/** + * struct prm_reset_src_map - map register bitshifts to standard bitshifts + * @reg_shift: bitshift in the PRM reset source register + * @std_shift: bitshift equivalent in the standard reset source list + * + * The fields are signed because -1 is used as a terminator. + */ +struct prm_reset_src_map { + s8 reg_shift; + s8 std_shift; +}; + +/** + * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations + * @read_reset_sources: ptr to the Soc PRM-specific get_reset_source impl + */ +struct prm_ll_data { + u32 (*read_reset_sources)(void); +}; + +extern int prm_register(struct prm_ll_data *pld); +extern int prm_unregister(struct prm_ll_data *pld); + +extern u32 prm_read_reset_sources(void); + +#endif + #endif diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c new file mode 100644 index 0000000..e2860f9 --- /dev/null +++ b/arch/arm/mach-omap2/prm2xxx.c @@ -0,0 +1,126 @@ +/* + * OMAP2xxx PRM module functions + * + * Copyright (C) 2010-2012 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * Benoît Cousson + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/irq.h> + +#include "common.h" +#include <plat/cpu.h> +#include <plat/prcm.h> + +#include "vp.h" +#include "powerdomain.h" +#include "clockdomain.h" +#include "prm2xxx.h" +#include "cm2xxx_3xxx.h" +#include "prm-regbits-24xx.h" + +/* + * omap2xxx_prm_reset_src_map - map from bits in the PRM_RSTST_WKUP + * hardware register (which are specific to the OMAP2xxx SoCs) to + * reset source ID bit shifts (which is an OMAP SoC-independent + * enumeration) + */ +static struct prm_reset_src_map omap2xxx_prm_reset_src_map[] = { + { OMAP_GLOBALCOLD_RST_SHIFT, OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT }, + { OMAP_GLOBALWARM_RST_SHIFT, OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT }, + { OMAP24XX_SECU_VIOL_RST_SHIFT, OMAP_SECU_VIOL_RST_SRC_ID_SHIFT }, + { OMAP24XX_MPU_WD_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT }, + { OMAP24XX_SECU_WD_RST_SHIFT, OMAP_SECU_WD_RST_SRC_ID_SHIFT }, + { OMAP24XX_EXTWMPU_RST_SHIFT, OMAP_EXTWARM_RST_SRC_ID_SHIFT }, + { -1, -1 }, +}; + +/** + * omap2xxx_prm_read_reset_sources - return the last SoC reset source + * + * Return a u32 representing the last reset sources of the SoC. The + * returned reset source bits are standardized across OMAP SoCs. + */ +static u32 omap2xxx_prm_read_reset_sources(void) +{ + struct prm_reset_src_map *p; + u32 r = 0; + u32 v; + + v = omap2_prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST); + + p = omap2xxx_prm_reset_src_map; + while (p->reg_shift >= 0 && p->std_shift >= 0) { + if (v & (1 << p->reg_shift)) + r |= 1 << p->std_shift; + p++; + } + + return r; +} + +int omap2xxx_clkdm_sleep(struct clockdomain *clkdm) +{ + omap2_prm_set_mod_reg_bits(OMAP24XX_FORCESTATE_MASK, + clkdm->pwrdm.ptr->prcm_offs, + OMAP2_PM_PWSTCTRL); + return 0; +} + +int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm) +{ + omap2_prm_clear_mod_reg_bits(OMAP24XX_FORCESTATE_MASK, + clkdm->pwrdm.ptr->prcm_offs, + OMAP2_PM_PWSTCTRL); + return 0; +} + +struct pwrdm_ops omap2_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, + .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, + .pwrdm_set_mem_onst = omap2_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = omap2_pwrdm_set_mem_retst, + .pwrdm_read_mem_pwrst = omap2_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = omap2_pwrdm_read_mem_retst, + .pwrdm_wait_transition = omap2_pwrdm_wait_transition, +}; + +/* + * + */ + +static struct prm_ll_data omap2xxx_prm_ll_data = { + .read_reset_sources = &omap2xxx_prm_read_reset_sources, +}; + +static int __init omap2xxx_prm_init(void) +{ + if (!cpu_is_omap24xx()) + return 0; + + return prm_register(&omap2xxx_prm_ll_data); +} +subsys_initcall(omap2xxx_prm_init); + +static void __exit omap2xxx_prm_exit(void) +{ + if (!cpu_is_omap24xx()) + return; + + /* Should never happen */ + WARN(prm_unregister(&omap2xxx_prm_ll_data), + "%s: prm_ll_data function pointer mismatch\n", __func__); +} +__exitcall(omap2xxx_prm_exit); diff --git a/arch/arm/mach-omap2/prm2xxx.h b/arch/arm/mach-omap2/prm2xxx.h new file mode 100644 index 0000000..1d97112 --- /dev/null +++ b/arch/arm/mach-omap2/prm2xxx.h @@ -0,0 +1,132 @@ +/* + * OMAP2xxx Power/Reset Management (PRM) register definitions + * + * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * The PRM hardware modules on the OMAP2/3 are quite similar to each + * other. The PRM on OMAP4 has a new register layout, and is handled + * in a separate file. + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM2XXX_H +#define __ARCH_ARM_MACH_OMAP2_PRM2XXX_H + +#include "prcm-common.h" +#include "prm.h" +#include "prm2xxx_3xxx.h" + +#define OMAP2420_PRM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE + (module) + (reg)) +#define OMAP2430_PRM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE + (module) + (reg)) + +/* + * OMAP2-specific global PRM registers + * Use __raw_{read,write}l() with these registers. + * + * With a few exceptions, these are the register names beginning with + * PRCM_* on 24xx. (The exceptions are the IRQSTATUS and IRQENABLE + * bits.) + * + */ + +#define OMAP2_PRCM_REVISION_OFFSET 0x0000 +#define OMAP2420_PRCM_REVISION OMAP2420_PRM_REGADDR(OCP_MOD, 0x0000) +#define OMAP2_PRCM_SYSCONFIG_OFFSET 0x0010 +#define OMAP2420_PRCM_SYSCONFIG OMAP2420_PRM_REGADDR(OCP_MOD, 0x0010) + +#define OMAP2_PRCM_IRQSTATUS_MPU_OFFSET 0x0018 +#define OMAP2420_PRCM_IRQSTATUS_MPU OMAP2420_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP2_PRCM_IRQENABLE_MPU_OFFSET 0x001c +#define OMAP2420_PRCM_IRQENABLE_MPU OMAP2420_PRM_REGADDR(OCP_MOD, 0x001c) + +#define OMAP2_PRCM_VOLTCTRL_OFFSET 0x0050 +#define OMAP2420_PRCM_VOLTCTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0050) +#define OMAP2_PRCM_VOLTST_OFFSET 0x0054 +#define OMAP2420_PRCM_VOLTST OMAP2420_PRM_REGADDR(OCP_MOD, 0x0054) +#define OMAP2_PRCM_CLKSRC_CTRL_OFFSET 0x0060 +#define OMAP2420_PRCM_CLKSRC_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0060) +#define OMAP2_PRCM_CLKOUT_CTRL_OFFSET 0x0070 +#define OMAP2420_PRCM_CLKOUT_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0070) +#define OMAP2_PRCM_CLKEMUL_CTRL_OFFSET 0x0078 +#define OMAP2420_PRCM_CLKEMUL_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0078) +#define OMAP2_PRCM_CLKCFG_CTRL_OFFSET 0x0080 +#define OMAP2420_PRCM_CLKCFG_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0080) +#define OMAP2_PRCM_CLKCFG_STATUS_OFFSET 0x0084 +#define OMAP2420_PRCM_CLKCFG_STATUS OMAP2420_PRM_REGADDR(OCP_MOD, 0x0084) +#define OMAP2_PRCM_VOLTSETUP_OFFSET 0x0090 +#define OMAP2420_PRCM_VOLTSETUP OMAP2420_PRM_REGADDR(OCP_MOD, 0x0090) +#define OMAP2_PRCM_CLKSSETUP_OFFSET 0x0094 +#define OMAP2420_PRCM_CLKSSETUP OMAP2420_PRM_REGADDR(OCP_MOD, 0x0094) +#define OMAP2_PRCM_POLCTRL_OFFSET 0x0098 +#define OMAP2420_PRCM_POLCTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0098) + +#define OMAP2430_PRCM_REVISION OMAP2430_PRM_REGADDR(OCP_MOD, 0x0000) +#define OMAP2430_PRCM_SYSCONFIG OMAP2430_PRM_REGADDR(OCP_MOD, 0x0010) + +#define OMAP2430_PRCM_IRQSTATUS_MPU OMAP2430_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP2430_PRCM_IRQENABLE_MPU OMAP2430_PRM_REGADDR(OCP_MOD, 0x001c) + +#define OMAP2430_PRCM_VOLTCTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0050) +#define OMAP2430_PRCM_VOLTST OMAP2430_PRM_REGADDR(OCP_MOD, 0x0054) +#define OMAP2430_PRCM_CLKSRC_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0060) +#define OMAP2430_PRCM_CLKOUT_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0070) +#define OMAP2430_PRCM_CLKEMUL_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0078) +#define OMAP2430_PRCM_CLKCFG_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0080) +#define OMAP2430_PRCM_CLKCFG_STATUS OMAP2430_PRM_REGADDR(OCP_MOD, 0x0084) +#define OMAP2430_PRCM_VOLTSETUP OMAP2430_PRM_REGADDR(OCP_MOD, 0x0090) +#define OMAP2430_PRCM_CLKSSETUP OMAP2430_PRM_REGADDR(OCP_MOD, 0x0094) +#define OMAP2430_PRCM_POLCTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0098) + +/* + * Module specific PRM register offsets from PRM_BASE + domain offset + * + * Use prm_{read,write}_mod_reg() with these registers. + * + * With a few exceptions, these are the register names beginning with + * {PM,RM}_* on both OMAP2/3 SoC families.. (The exceptions are the + * IRQSTATUS and IRQENABLE bits.) + */ + +/* Register offsets appearing on both OMAP2 and OMAP3 */ + +#define OMAP2_RM_RSTCTRL 0x0050 +#define OMAP2_RM_RSTTIME 0x0054 +#define OMAP2_RM_RSTST 0x0058 +#define OMAP2_PM_PWSTCTRL 0x00e0 +#define OMAP2_PM_PWSTST 0x00e4 + +#define PM_WKEN 0x00a0 +#define PM_WKEN1 PM_WKEN +#define PM_WKST 0x00b0 +#define PM_WKST1 PM_WKST +#define PM_WKDEP 0x00c8 +#define PM_EVGENCTRL 0x00d4 +#define PM_EVGENONTIM 0x00d8 +#define PM_EVGENOFFTIM 0x00dc + +/* OMAP2xxx specific register offsets */ +#define OMAP24XX_PM_WKEN2 0x00a4 +#define OMAP24XX_PM_WKST2 0x00b4 + +#define OMAP24XX_PRCM_IRQSTATUS_DSP 0x00f0 /* IVA mod */ +#define OMAP24XX_PRCM_IRQENABLE_DSP 0x00f4 /* IVA mod */ +#define OMAP24XX_PRCM_IRQSTATUS_IVA 0x00f8 +#define OMAP24XX_PRCM_IRQENABLE_IVA 0x00fc + +#ifndef __ASSEMBLER__ +/* Function prototypes */ +extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm); +extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm); + +extern int __init prm2xxx_init(void); +extern int __exit prm2xxx_exit(void); + +#endif + +#endif diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.c b/arch/arm/mach-omap2/prm2xxx_3xxx.c index 9529984..30517f5 100644 --- a/arch/arm/mach-omap2/prm2xxx_3xxx.c +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.c @@ -15,82 +15,12 @@ #include <linux/errno.h> #include <linux/err.h> #include <linux/io.h> -#include <linux/irq.h> -#include <plat/prcm.h> - -#include "soc.h" #include "common.h" -#include "vp.h" - +#include "powerdomain.h" #include "prm2xxx_3xxx.h" -#include "cm2xxx_3xxx.h" #include "prm-regbits-24xx.h" -#include "prm-regbits-34xx.h" - -static const struct omap_prcm_irq omap3_prcm_irqs[] = { - OMAP_PRCM_IRQ("wkup", 0, 0), - OMAP_PRCM_IRQ("io", 9, 1), -}; - -static struct omap_prcm_irq_setup omap3_prcm_irq_setup = { - .ack = OMAP3_PRM_IRQSTATUS_MPU_OFFSET, - .mask = OMAP3_PRM_IRQENABLE_MPU_OFFSET, - .nr_regs = 1, - .irqs = omap3_prcm_irqs, - .nr_irqs = ARRAY_SIZE(omap3_prcm_irqs), - .irq = 11 + OMAP_INTC_START, - .read_pending_irqs = &omap3xxx_prm_read_pending_irqs, - .ocp_barrier = &omap3xxx_prm_ocp_barrier, - .save_and_clear_irqen = &omap3xxx_prm_save_and_clear_irqen, - .restore_irqen = &omap3xxx_prm_restore_irqen, -}; - -u32 omap2_prm_read_mod_reg(s16 module, u16 idx) -{ - return __raw_readl(prm_base + module + idx); -} - -void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx) -{ - __raw_writel(val, prm_base + module + idx); -} - -/* Read-modify-write a register in a PRM module. Caller must lock */ -u32 omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx) -{ - u32 v; - - v = omap2_prm_read_mod_reg(module, idx); - v &= ~mask; - v |= bits; - omap2_prm_write_mod_reg(v, module, idx); - - return v; -} - -/* Read a PRM register, AND it, and shift the result down to bit 0 */ -u32 omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) -{ - u32 v; - - v = omap2_prm_read_mod_reg(domain, idx); - v &= mask; - v >>= __ffs(mask); - - return v; -} - -u32 omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) -{ - return omap2_prm_rmw_mod_reg_bits(bits, bits, module, idx); -} - -u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) -{ - return omap2_prm_rmw_mod_reg_bits(bits, 0x0, module, idx); -} - +#include "clockdomain.h" /** * omap2_prm_is_hardreset_asserted - read the HW reset line state of @@ -104,9 +34,6 @@ u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) */ int omap2_prm_is_hardreset_asserted(s16 prm_mod, u8 shift) { - if (!(cpu_is_omap24xx() || cpu_is_omap34xx())) - return -EINVAL; - return omap2_prm_read_mod_bits_shift(prm_mod, OMAP2_RM_RSTCTRL, (1 << shift)); } @@ -127,9 +54,6 @@ int omap2_prm_assert_hardreset(s16 prm_mod, u8 shift) { u32 mask; - if (!(cpu_is_omap24xx() || cpu_is_omap34xx())) - return -EINVAL; - mask = 1 << shift; omap2_prm_rmw_mod_reg_bits(mask, mask, prm_mod, OMAP2_RM_RSTCTRL); @@ -156,9 +80,6 @@ int omap2_prm_deassert_hardreset(s16 prm_mod, u8 rst_shift, u8 st_shift) u32 rst, st; int c; - if (!(cpu_is_omap24xx() || cpu_is_omap34xx())) - return -EINVAL; - rst = 1 << rst_shift; st = 1 << st_shift; @@ -178,188 +99,155 @@ int omap2_prm_deassert_hardreset(s16 prm_mod, u8 rst_shift, u8 st_shift) return (c == MAX_MODULE_HARDRESET_WAIT) ? -EBUSY : 0; } -/* PRM VP */ - -/* - * struct omap3_vp - OMAP3 VP register access description. - * @tranxdone_status: VP_TRANXDONE_ST bitmask in PRM_IRQSTATUS_MPU reg - */ -struct omap3_vp { - u32 tranxdone_status; -}; - -static struct omap3_vp omap3_vp[] = { - [OMAP3_VP_VDD_MPU_ID] = { - .tranxdone_status = OMAP3430_VP1_TRANXDONE_ST_MASK, - }, - [OMAP3_VP_VDD_CORE_ID] = { - .tranxdone_status = OMAP3430_VP2_TRANXDONE_ST_MASK, - }, -}; - -#define MAX_VP_ID ARRAY_SIZE(omap3_vp); - -u32 omap3_prm_vp_check_txdone(u8 vp_id) -{ - struct omap3_vp *vp = &omap3_vp[vp_id]; - u32 irqstatus; - irqstatus = omap2_prm_read_mod_reg(OCP_MOD, - OMAP3_PRM_IRQSTATUS_MPU_OFFSET); - return irqstatus & vp->tranxdone_status; -} +/* Powerdomain low-level functions */ -void omap3_prm_vp_clear_txdone(u8 vp_id) +/* Common functions across OMAP2 and OMAP3 */ +int omap2_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) { - struct omap3_vp *vp = &omap3_vp[vp_id]; - - omap2_prm_write_mod_reg(vp->tranxdone_status, - OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); + return 0; } -u32 omap3_prm_vcvp_read(u8 offset) +int omap2_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) { - return omap2_prm_read_mod_reg(OMAP3430_GR_MOD, offset); + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, + OMAP_POWERSTATE_MASK); } -void omap3_prm_vcvp_write(u32 val, u8 offset) +int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm) { - omap2_prm_write_mod_reg(val, OMAP3430_GR_MOD, offset); + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, + OMAP_POWERSTATEST_MASK); } -u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset) +int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) { - return omap2_prm_rmw_mod_reg_bits(mask, bits, OMAP3430_GR_MOD, offset); + u32 m; + + m = omap2_pwrdm_get_mem_bank_onstate_mask(bank); + + omap2_prm_rmw_mod_reg_bits(m, (pwrst << __ffs(m)), pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); + + return 0; } -/** - * omap3xxx_prm_read_pending_irqs - read pending PRM MPU IRQs into @events - * @events: ptr to a u32, preallocated by caller - * - * Read PRM_IRQSTATUS_MPU bits, AND'ed with the currently-enabled PRM - * MPU IRQs, and store the result into the u32 pointed to by @events. - * No return value. - */ -void omap3xxx_prm_read_pending_irqs(unsigned long *events) +int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) { - u32 mask, st; + u32 m; + + m = omap2_pwrdm_get_mem_bank_retst_mask(bank); - /* XXX Can the mask read be avoided (e.g., can it come from RAM?) */ - mask = omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); - st = omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + omap2_prm_rmw_mod_reg_bits(m, (pwrst << __ffs(m)), pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); - events[0] = mask & st; + return 0; } -/** - * omap3xxx_prm_ocp_barrier - force buffered MPU writes to the PRM to complete - * - * Force any buffered writes to the PRM IP block to complete. Needed - * by the PRM IRQ handler, which reads and writes directly to the IP - * block, to avoid race conditions after acknowledging or clearing IRQ - * bits. No return value. - */ -void omap3xxx_prm_ocp_barrier(void) +int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) { - omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_REVISION_OFFSET); + u32 m; + + m = omap2_pwrdm_get_mem_bank_stst_mask(bank); + + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP2_PM_PWSTST, + m); } -/** - * omap3xxx_prm_save_and_clear_irqen - save/clear PRM_IRQENABLE_MPU reg - * @saved_mask: ptr to a u32 array to save IRQENABLE bits - * - * Save the PRM_IRQENABLE_MPU register to @saved_mask. @saved_mask - * must be allocated by the caller. Intended to be used in the PRM - * interrupt handler suspend callback. The OCP barrier is needed to - * ensure the write to disable PRM interrupts reaches the PRM before - * returning; otherwise, spurious interrupts might occur. No return - * value. - */ -void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask) +int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) { - saved_mask[0] = omap2_prm_read_mod_reg(OCP_MOD, - OMAP3_PRM_IRQENABLE_MPU_OFFSET); - omap2_prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); + u32 m; + + m = omap2_pwrdm_get_mem_bank_retst_mask(bank); - /* OCP barrier */ - omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_REVISION_OFFSET); + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, m); } -/** - * omap3xxx_prm_restore_irqen - set PRM_IRQENABLE_MPU register from args - * @saved_mask: ptr to a u32 array of IRQENABLE bits saved previously - * - * Restore the PRM_IRQENABLE_MPU register from @saved_mask. Intended - * to be used in the PRM interrupt handler resume callback to restore - * values saved by omap3xxx_prm_save_and_clear_irqen(). No OCP - * barrier should be needed here; any pending PRM interrupts will fire - * once the writes reach the PRM. No return value. - */ -void omap3xxx_prm_restore_irqen(u32 *saved_mask) +int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) { - omap2_prm_write_mod_reg(saved_mask[0], OCP_MOD, - OMAP3_PRM_IRQENABLE_MPU_OFFSET); + u32 v; + + v = pwrst << __ffs(OMAP_LOGICRETSTATE_MASK); + omap2_prm_rmw_mod_reg_bits(OMAP_LOGICRETSTATE_MASK, v, pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); + + return 0; } -/** - * omap3xxx_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain - * - * Clear any previously-latched I/O wakeup events and ensure that the - * I/O wakeup gates are aligned with the current mux settings. Works - * by asserting WUCLKIN, waiting for WUCLKOUT to be asserted, and then - * deasserting WUCLKIN and clearing the ST_IO_CHAIN WKST bit. No - * return value. - */ -void omap3xxx_prm_reconfigure_io_chain(void) +int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm) { - int i = 0; + u32 c = 0; - omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD, - PM_WKEN); + /* + * REVISIT: pwrdm_wait_transition() may be better implemented + * via a callback and a periodic timer check -- how long do we expect + * powerdomain transitions to take? + */ - omap_test_timeout(omap2_prm_read_mod_reg(WKUP_MOD, PM_WKST) & - OMAP3430_ST_IO_CHAIN_MASK, - MAX_IOPAD_LATCH_TIME, i); - if (i == MAX_IOPAD_LATCH_TIME) - pr_warn("PRM: I/O chain clock line assertion timed out\n"); + /* XXX Is this udelay() value meaningful? */ + while ((omap2_prm_read_mod_reg(pwrdm->prcm_offs, OMAP2_PM_PWSTST) & + OMAP_INTRANSITION_MASK) && + (c++ < PWRDM_TRANSITION_BAILOUT)) + udelay(1); - omap2_prm_clear_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD, - PM_WKEN); + if (c > PWRDM_TRANSITION_BAILOUT) { + pr_err("powerdomain: %s: waited too long to complete transition\n", + pwrdm->name); + return -EAGAIN; + } - omap2_prm_set_mod_reg_bits(OMAP3430_ST_IO_CHAIN_MASK, WKUP_MOD, - PM_WKST); + pr_debug("powerdomain: completed transition in %d loops\n", c); - omap2_prm_read_mod_reg(WKUP_MOD, PM_WKST); + return 0; } -/** - * omap3xxx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches - * - * Activates the I/O wakeup event latches and allows events logged by - * those latches to signal a wakeup event to the PRCM. For I/O - * wakeups to occur, WAKEUPENABLE bits must be set in the pad mux - * registers, and omap3xxx_prm_reconfigure_io_chain() must be called. - * No return value. - */ -static void __init omap3xxx_prm_enable_io_wakeup(void) +int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_prm_set_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP); + return 0; +} + +int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_prm_clear_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP); + return 0; +} + +int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) { - if (omap3_has_io_wakeup()) - omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, - PM_WKEN); + return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, + PM_WKDEP, (1 << clkdm2->dep_bit)); } -static int __init omap3xxx_prcm_init(void) +int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm) { - int ret = 0; - - if (cpu_is_omap34xx()) { - omap3xxx_prm_enable_io_wakeup(); - ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup); - if (!ret) - irq_set_status_flags(omap_prcm_event_to_irq("io"), - IRQ_NOAUTOEN); + struct clkdm_dep *cd; + u32 mask = 0; + + for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { + if (!cd->clkdm) + continue; /* only happens if data is erroneous */ + + /* PRM accesses are slow, so minimize them */ + mask |= 1 << cd->clkdm->dep_bit; + atomic_set(&cd->wkdep_usecount, 0); } - return ret; + omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, + PM_WKDEP); + return 0; } -subsys_initcall(omap3xxx_prcm_init); + diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.h b/arch/arm/mach-omap2/prm2xxx_3xxx.h index c19d249..3330b1b 100644 --- a/arch/arm/mach-omap2/prm2xxx_3xxx.h +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.h @@ -1,7 +1,7 @@ /* - * OMAP2/3 Power/Reset Management (PRM) register definitions + * OMAP2xxx/3xxx-common Power/Reset Management (PRM) register definitions * - * Copyright (C) 2007-2009, 2011 Texas Instruments, Inc. + * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc. * Copyright (C) 2008-2010 Nokia Corporation * Paul Walmsley * @@ -19,160 +19,6 @@ #include "prcm-common.h" #include "prm.h" -#define OMAP2420_PRM_REGADDR(module, reg) \ - OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE + (module) + (reg)) -#define OMAP2430_PRM_REGADDR(module, reg) \ - OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE + (module) + (reg)) -#define OMAP34XX_PRM_REGADDR(module, reg) \ - OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE + (module) + (reg)) - - -/* - * OMAP2-specific global PRM registers - * Use __raw_{read,write}l() with these registers. - * - * With a few exceptions, these are the register names beginning with - * PRCM_* on 24xx. (The exceptions are the IRQSTATUS and IRQENABLE - * bits.) - * - */ - -#define OMAP2_PRCM_REVISION_OFFSET 0x0000 -#define OMAP2420_PRCM_REVISION OMAP2420_PRM_REGADDR(OCP_MOD, 0x0000) -#define OMAP2_PRCM_SYSCONFIG_OFFSET 0x0010 -#define OMAP2420_PRCM_SYSCONFIG OMAP2420_PRM_REGADDR(OCP_MOD, 0x0010) - -#define OMAP2_PRCM_IRQSTATUS_MPU_OFFSET 0x0018 -#define OMAP2420_PRCM_IRQSTATUS_MPU OMAP2420_PRM_REGADDR(OCP_MOD, 0x0018) -#define OMAP2_PRCM_IRQENABLE_MPU_OFFSET 0x001c -#define OMAP2420_PRCM_IRQENABLE_MPU OMAP2420_PRM_REGADDR(OCP_MOD, 0x001c) - -#define OMAP2_PRCM_VOLTCTRL_OFFSET 0x0050 -#define OMAP2420_PRCM_VOLTCTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0050) -#define OMAP2_PRCM_VOLTST_OFFSET 0x0054 -#define OMAP2420_PRCM_VOLTST OMAP2420_PRM_REGADDR(OCP_MOD, 0x0054) -#define OMAP2_PRCM_CLKSRC_CTRL_OFFSET 0x0060 -#define OMAP2420_PRCM_CLKSRC_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0060) -#define OMAP2_PRCM_CLKOUT_CTRL_OFFSET 0x0070 -#define OMAP2420_PRCM_CLKOUT_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0070) -#define OMAP2_PRCM_CLKEMUL_CTRL_OFFSET 0x0078 -#define OMAP2420_PRCM_CLKEMUL_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0078) -#define OMAP2_PRCM_CLKCFG_CTRL_OFFSET 0x0080 -#define OMAP2420_PRCM_CLKCFG_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0080) -#define OMAP2_PRCM_CLKCFG_STATUS_OFFSET 0x0084 -#define OMAP2420_PRCM_CLKCFG_STATUS OMAP2420_PRM_REGADDR(OCP_MOD, 0x0084) -#define OMAP2_PRCM_VOLTSETUP_OFFSET 0x0090 -#define OMAP2420_PRCM_VOLTSETUP OMAP2420_PRM_REGADDR(OCP_MOD, 0x0090) -#define OMAP2_PRCM_CLKSSETUP_OFFSET 0x0094 -#define OMAP2420_PRCM_CLKSSETUP OMAP2420_PRM_REGADDR(OCP_MOD, 0x0094) -#define OMAP2_PRCM_POLCTRL_OFFSET 0x0098 -#define OMAP2420_PRCM_POLCTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0098) - -#define OMAP2430_PRCM_REVISION OMAP2430_PRM_REGADDR(OCP_MOD, 0x0000) -#define OMAP2430_PRCM_SYSCONFIG OMAP2430_PRM_REGADDR(OCP_MOD, 0x0010) - -#define OMAP2430_PRCM_IRQSTATUS_MPU OMAP2430_PRM_REGADDR(OCP_MOD, 0x0018) -#define OMAP2430_PRCM_IRQENABLE_MPU OMAP2430_PRM_REGADDR(OCP_MOD, 0x001c) - -#define OMAP2430_PRCM_VOLTCTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0050) -#define OMAP2430_PRCM_VOLTST OMAP2430_PRM_REGADDR(OCP_MOD, 0x0054) -#define OMAP2430_PRCM_CLKSRC_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0060) -#define OMAP2430_PRCM_CLKOUT_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0070) -#define OMAP2430_PRCM_CLKEMUL_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0078) -#define OMAP2430_PRCM_CLKCFG_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0080) -#define OMAP2430_PRCM_CLKCFG_STATUS OMAP2430_PRM_REGADDR(OCP_MOD, 0x0084) -#define OMAP2430_PRCM_VOLTSETUP OMAP2430_PRM_REGADDR(OCP_MOD, 0x0090) -#define OMAP2430_PRCM_CLKSSETUP OMAP2430_PRM_REGADDR(OCP_MOD, 0x0094) -#define OMAP2430_PRCM_POLCTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0098) - -/* - * OMAP3-specific global PRM registers - * Use __raw_{read,write}l() with these registers. - * - * With a few exceptions, these are the register names beginning with - * PRM_* on 34xx. (The exceptions are the IRQSTATUS and IRQENABLE - * bits.) - */ - -#define OMAP3_PRM_REVISION_OFFSET 0x0004 -#define OMAP3430_PRM_REVISION OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0004) -#define OMAP3_PRM_SYSCONFIG_OFFSET 0x0014 -#define OMAP3430_PRM_SYSCONFIG OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0014) - -#define OMAP3_PRM_IRQSTATUS_MPU_OFFSET 0x0018 -#define OMAP3430_PRM_IRQSTATUS_MPU OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0018) -#define OMAP3_PRM_IRQENABLE_MPU_OFFSET 0x001c -#define OMAP3430_PRM_IRQENABLE_MPU OMAP34XX_PRM_REGADDR(OCP_MOD, 0x001c) - - -#define OMAP3_PRM_VC_SMPS_SA_OFFSET 0x0020 -#define OMAP3430_PRM_VC_SMPS_SA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0020) -#define OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET 0x0024 -#define OMAP3430_PRM_VC_SMPS_VOL_RA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0024) -#define OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET 0x0028 -#define OMAP3430_PRM_VC_SMPS_CMD_RA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0028) -#define OMAP3_PRM_VC_CMD_VAL_0_OFFSET 0x002c -#define OMAP3430_PRM_VC_CMD_VAL_0 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x002c) -#define OMAP3_PRM_VC_CMD_VAL_1_OFFSET 0x0030 -#define OMAP3430_PRM_VC_CMD_VAL_1 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0030) -#define OMAP3_PRM_VC_CH_CONF_OFFSET 0x0034 -#define OMAP3430_PRM_VC_CH_CONF OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0034) -#define OMAP3_PRM_VC_I2C_CFG_OFFSET 0x0038 -#define OMAP3430_PRM_VC_I2C_CFG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0038) -#define OMAP3_PRM_VC_BYPASS_VAL_OFFSET 0x003c -#define OMAP3430_PRM_VC_BYPASS_VAL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x003c) -#define OMAP3_PRM_RSTCTRL_OFFSET 0x0050 -#define OMAP3430_PRM_RSTCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0050) -#define OMAP3_PRM_RSTTIME_OFFSET 0x0054 -#define OMAP3430_PRM_RSTTIME OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0054) -#define OMAP3_PRM_RSTST_OFFSET 0x0058 -#define OMAP3430_PRM_RSTST OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0058) -#define OMAP3_PRM_VOLTCTRL_OFFSET 0x0060 -#define OMAP3430_PRM_VOLTCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0060) -#define OMAP3_PRM_SRAM_PCHARGE_OFFSET 0x0064 -#define OMAP3430_PRM_SRAM_PCHARGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0064) -#define OMAP3_PRM_CLKSRC_CTRL_OFFSET 0x0070 -#define OMAP3430_PRM_CLKSRC_CTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0070) -#define OMAP3_PRM_VOLTSETUP1_OFFSET 0x0090 -#define OMAP3430_PRM_VOLTSETUP1 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0090) -#define OMAP3_PRM_VOLTOFFSET_OFFSET 0x0094 -#define OMAP3430_PRM_VOLTOFFSET OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0094) -#define OMAP3_PRM_CLKSETUP_OFFSET 0x0098 -#define OMAP3430_PRM_CLKSETUP OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0098) -#define OMAP3_PRM_POLCTRL_OFFSET 0x009c -#define OMAP3430_PRM_POLCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x009c) -#define OMAP3_PRM_VOLTSETUP2_OFFSET 0x00a0 -#define OMAP3430_PRM_VOLTSETUP2 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00a0) -#define OMAP3_PRM_VP1_CONFIG_OFFSET 0x00b0 -#define OMAP3430_PRM_VP1_CONFIG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b0) -#define OMAP3_PRM_VP1_VSTEPMIN_OFFSET 0x00b4 -#define OMAP3430_PRM_VP1_VSTEPMIN OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b4) -#define OMAP3_PRM_VP1_VSTEPMAX_OFFSET 0x00b8 -#define OMAP3430_PRM_VP1_VSTEPMAX OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b8) -#define OMAP3_PRM_VP1_VLIMITTO_OFFSET 0x00bc -#define OMAP3430_PRM_VP1_VLIMITTO OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00bc) -#define OMAP3_PRM_VP1_VOLTAGE_OFFSET 0x00c0 -#define OMAP3430_PRM_VP1_VOLTAGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c0) -#define OMAP3_PRM_VP1_STATUS_OFFSET 0x00c4 -#define OMAP3430_PRM_VP1_STATUS OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c4) -#define OMAP3_PRM_VP2_CONFIG_OFFSET 0x00d0 -#define OMAP3430_PRM_VP2_CONFIG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d0) -#define OMAP3_PRM_VP2_VSTEPMIN_OFFSET 0x00d4 -#define OMAP3430_PRM_VP2_VSTEPMIN OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d4) -#define OMAP3_PRM_VP2_VSTEPMAX_OFFSET 0x00d8 -#define OMAP3430_PRM_VP2_VSTEPMAX OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d8) -#define OMAP3_PRM_VP2_VLIMITTO_OFFSET 0x00dc -#define OMAP3430_PRM_VP2_VLIMITTO OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00dc) -#define OMAP3_PRM_VP2_VOLTAGE_OFFSET 0x00e0 -#define OMAP3430_PRM_VP2_VOLTAGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e0) -#define OMAP3_PRM_VP2_STATUS_OFFSET 0x00e4 -#define OMAP3430_PRM_VP2_STATUS OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e4) - -#define OMAP3_PRM_CLKSEL_OFFSET 0x0040 -#define OMAP3430_PRM_CLKSEL OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0040) -#define OMAP3_PRM_CLKOUT_CTRL_OFFSET 0x0070 -#define OMAP3430_PRM_CLKOUT_CTRL OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0070) - /* * Module specific PRM register offsets from PRM_BASE + domain offset * @@ -200,66 +46,83 @@ #define PM_EVGENONTIM 0x00d8 #define PM_EVGENOFFTIM 0x00dc -/* OMAP2xxx specific register offsets */ -#define OMAP24XX_PM_WKEN2 0x00a4 -#define OMAP24XX_PM_WKST2 0x00b4 - -#define OMAP24XX_PRCM_IRQSTATUS_DSP 0x00f0 /* IVA mod */ -#define OMAP24XX_PRCM_IRQENABLE_DSP 0x00f4 /* IVA mod */ -#define OMAP24XX_PRCM_IRQSTATUS_IVA 0x00f8 -#define OMAP24XX_PRCM_IRQENABLE_IVA 0x00fc - -/* OMAP3 specific register offsets */ -#define OMAP3430ES2_PM_WKEN3 0x00f0 -#define OMAP3430ES2_PM_WKST3 0x00b8 - -#define OMAP3430_PM_MPUGRPSEL 0x00a4 -#define OMAP3430_PM_MPUGRPSEL1 OMAP3430_PM_MPUGRPSEL -#define OMAP3430ES2_PM_MPUGRPSEL3 0x00f8 -#define OMAP3430_PM_IVAGRPSEL 0x00a8 -#define OMAP3430_PM_IVAGRPSEL1 OMAP3430_PM_IVAGRPSEL -#define OMAP3430ES2_PM_IVAGRPSEL3 0x00f4 - -#define OMAP3430_PM_PREPWSTST 0x00e8 - -#define OMAP3430_PRM_IRQSTATUS_IVA2 0x00f8 -#define OMAP3430_PRM_IRQENABLE_IVA2 0x00fc +#ifndef __ASSEMBLER__ +#include <linux/io.h> +#include "powerdomain.h" -#ifndef __ASSEMBLER__ /* Power/reset management domain register get/set */ -extern u32 omap2_prm_read_mod_reg(s16 module, u16 idx); -extern void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx); -extern u32 omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx); -extern u32 omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx); -extern u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx); -extern u32 omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask); +static inline u32 omap2_prm_read_mod_reg(s16 module, u16 idx) +{ + return __raw_readl(prm_base + module + idx); +} + +static inline void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx) +{ + __raw_writel(val, prm_base + module + idx); +} + +/* Read-modify-write a register in a PRM module. Caller must lock */ +static inline u32 omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, + s16 idx) +{ + u32 v; + + v = omap2_prm_read_mod_reg(module, idx); + v &= ~mask; + v |= bits; + omap2_prm_write_mod_reg(v, module, idx); + + return v; +} + +/* Read a PRM register, AND it, and shift the result down to bit 0 */ +static inline u32 omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) +{ + u32 v; + + v = omap2_prm_read_mod_reg(domain, idx); + v &= mask; + v >>= __ffs(mask); + + return v; +} + +static inline u32 omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_prm_rmw_mod_reg_bits(bits, bits, module, idx); +} + +static inline u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_prm_rmw_mod_reg_bits(bits, 0x0, module, idx); +} /* These omap2_ PRM functions apply to both OMAP2 and 3 */ extern int omap2_prm_is_hardreset_asserted(s16 prm_mod, u8 shift); extern int omap2_prm_assert_hardreset(s16 prm_mod, u8 shift); extern int omap2_prm_deassert_hardreset(s16 prm_mod, u8 rst_shift, u8 st_shift); -/* OMAP3-specific VP functions */ -u32 omap3_prm_vp_check_txdone(u8 vp_id); -void omap3_prm_vp_clear_txdone(u8 vp_id); - -/* - * OMAP3 access functions for voltage controller (VC) and - * voltage proccessor (VP) in the PRM. - */ -extern u32 omap3_prm_vcvp_read(u8 offset); -extern void omap3_prm_vcvp_write(u32 val, u8 offset); -extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset); - -extern void omap3xxx_prm_reconfigure_io_chain(void); - -/* PRM interrupt-related functions */ -extern void omap3xxx_prm_read_pending_irqs(unsigned long *events); -extern void omap3xxx_prm_ocp_barrier(void); -extern void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask); -extern void omap3xxx_prm_restore_irqen(u32 *saved_mask); +extern int omap2_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst); +extern int omap2_pwrdm_read_next_pwrst(struct powerdomain *pwrdm); +extern int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm); +extern int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst); +extern int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst); +extern int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank); +extern int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank); +extern int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst); +extern int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm); + +extern int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm); #endif /* __ASSEMBLER */ @@ -348,7 +211,9 @@ extern void omap3xxx_prm_restore_irqen(u32 *saved_mask); * * 3430: RM_RSTST_CORE, RM_RSTST_EMU */ +#define OMAP_GLOBALWARM_RST_SHIFT 1 #define OMAP_GLOBALWARM_RST_MASK (1 << 1) +#define OMAP_GLOBALCOLD_RST_SHIFT 0 #define OMAP_GLOBALCOLD_RST_MASK (1 << 0) /* diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c index e7dbb6c..1ac7388 100644 --- a/arch/arm/mach-omap2/prm33xx.c +++ b/arch/arm/mach-omap2/prm33xx.c @@ -19,9 +19,8 @@ #include <linux/err.h> #include <linux/io.h> -#include <plat/common.h> - #include "common.h" +#include "powerdomain.h" #include "prm33xx.h" #include "prm-regbits-33xx.h" @@ -133,3 +132,204 @@ int am33xx_prm_deassert_hardreset(u8 shift, s16 inst, return (c == MAX_MODULE_HARDRESET_WAIT) ? -EBUSY : 0; } + +static int am33xx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + am33xx_prm_rmw_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + return 0; +} + +static int am33xx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + v &= OMAP_POWERSTATE_MASK; + v >>= OMAP_POWERSTATE_SHIFT; + + return v; +} + +static int am33xx_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); + v &= OMAP_POWERSTATEST_MASK; + v >>= OMAP_POWERSTATEST_SHIFT; + + return v; +} + +static int am33xx_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); + v &= AM33XX_LASTPOWERSTATEENTERED_MASK; + v >>= AM33XX_LASTPOWERSTATEENTERED_SHIFT; + + return v; +} + +static int am33xx_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm) +{ + am33xx_prm_rmw_reg_bits(AM33XX_LOWPOWERSTATECHANGE_MASK, + (1 << AM33XX_LOWPOWERSTATECHANGE_SHIFT), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + return 0; +} + +static int am33xx_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) +{ + am33xx_prm_rmw_reg_bits(AM33XX_LASTPOWERSTATEENTERED_MASK, + AM33XX_LASTPOWERSTATEENTERED_MASK, + pwrdm->prcm_offs, pwrdm->pwrstst_offs); + return 0; +} + +static int am33xx_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) +{ + u32 m; + + m = pwrdm->logicretstate_mask; + if (!m) + return -EINVAL; + + am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + + return 0; +} + +static int am33xx_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); + v &= AM33XX_LOGICSTATEST_MASK; + v >>= AM33XX_LOGICSTATEST_SHIFT; + + return v; +} + +static int am33xx_pwrdm_read_logic_retst(struct powerdomain *pwrdm) +{ + u32 v, m; + + m = pwrdm->logicretstate_mask; + if (!m) + return -EINVAL; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + v &= m; + v >>= __ffs(m); + + return v; +} + +static int am33xx_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = pwrdm->mem_on_mask[bank]; + if (!m) + return -EINVAL; + + am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + + return 0; +} + +static int am33xx_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = pwrdm->mem_ret_mask[bank]; + if (!m) + return -EINVAL; + + am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + + return 0; +} + +static int am33xx_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m, v; + + m = pwrdm->mem_pwrst_mask[bank]; + if (!m) + return -EINVAL; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); + v &= m; + v >>= __ffs(m); + + return v; +} + +static int am33xx_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m, v; + + m = pwrdm->mem_retst_mask[bank]; + if (!m) + return -EINVAL; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + v &= m; + v >>= __ffs(m); + + return v; +} + +static int am33xx_pwrdm_wait_transition(struct powerdomain *pwrdm) +{ + u32 c = 0; + + /* + * REVISIT: pwrdm_wait_transition() may be better implemented + * via a callback and a periodic timer check -- how long do we expect + * powerdomain transitions to take? + */ + + /* XXX Is this udelay() value meaningful? */ + while ((am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs) + & OMAP_INTRANSITION_MASK) && + (c++ < PWRDM_TRANSITION_BAILOUT)) + udelay(1); + + if (c > PWRDM_TRANSITION_BAILOUT) { + pr_err("powerdomain: %s: waited too long to complete transition\n", + pwrdm->name); + return -EAGAIN; + } + + pr_debug("powerdomain: completed transition in %d loops\n", c); + + return 0; +} + +struct pwrdm_ops am33xx_pwrdm_operations = { + .pwrdm_set_next_pwrst = am33xx_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = am33xx_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = am33xx_pwrdm_read_pwrst, + .pwrdm_read_prev_pwrst = am33xx_pwrdm_read_prev_pwrst, + .pwrdm_set_logic_retst = am33xx_pwrdm_set_logic_retst, + .pwrdm_read_logic_pwrst = am33xx_pwrdm_read_logic_pwrst, + .pwrdm_read_logic_retst = am33xx_pwrdm_read_logic_retst, + .pwrdm_clear_all_prev_pwrst = am33xx_pwrdm_clear_all_prev_pwrst, + .pwrdm_set_lowpwrstchange = am33xx_pwrdm_set_lowpwrstchange, + .pwrdm_read_mem_pwrst = am33xx_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = am33xx_pwrdm_read_mem_retst, + .pwrdm_set_mem_onst = am33xx_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = am33xx_pwrdm_set_mem_retst, + .pwrdm_wait_transition = am33xx_pwrdm_wait_transition, +}; diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c new file mode 100644 index 0000000..1fea656 --- /dev/null +++ b/arch/arm/mach-omap2/prm3xxx.c @@ -0,0 +1,403 @@ +/* + * OMAP3xxx PRM module functions + * + * Copyright (C) 2010-2012 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * Benoît Cousson + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/irq.h> + +#include "common.h" +#include <plat/cpu.h> +#include <plat/prcm.h> + +#include "vp.h" +#include "powerdomain.h" +#include "prm3xxx.h" +#include "prm2xxx_3xxx.h" +#include "cm2xxx_3xxx.h" +#include "prm-regbits-34xx.h" + +static const struct omap_prcm_irq omap3_prcm_irqs[] = { + OMAP_PRCM_IRQ("wkup", 0, 0), + OMAP_PRCM_IRQ("io", 9, 1), +}; + +static struct omap_prcm_irq_setup omap3_prcm_irq_setup = { + .ack = OMAP3_PRM_IRQSTATUS_MPU_OFFSET, + .mask = OMAP3_PRM_IRQENABLE_MPU_OFFSET, + .nr_regs = 1, + .irqs = omap3_prcm_irqs, + .nr_irqs = ARRAY_SIZE(omap3_prcm_irqs), + .irq = 11 + OMAP_INTC_START, + .read_pending_irqs = &omap3xxx_prm_read_pending_irqs, + .ocp_barrier = &omap3xxx_prm_ocp_barrier, + .save_and_clear_irqen = &omap3xxx_prm_save_and_clear_irqen, + .restore_irqen = &omap3xxx_prm_restore_irqen, +}; + +/* + * omap3_prm_reset_src_map - map from bits in the PRM_RSTST hardware + * register (which are specific to OMAP3xxx SoCs) to reset source ID + * bit shifts (which is an OMAP SoC-independent enumeration) + */ +static struct prm_reset_src_map omap3xxx_prm_reset_src_map[] = { + { OMAP3430_GLOBAL_COLD_RST_SHIFT, OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT }, + { OMAP3430_GLOBAL_SW_RST_SHIFT, OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT }, + { OMAP3430_SECURITY_VIOL_RST_SHIFT, OMAP_SECU_VIOL_RST_SRC_ID_SHIFT }, + { OMAP3430_MPU_WD_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT }, + { OMAP3430_SECURE_WD_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT }, + { OMAP3430_EXTERNAL_WARM_RST_SHIFT, OMAP_EXTWARM_RST_SRC_ID_SHIFT }, + { OMAP3430_VDD1_VOLTAGE_MANAGER_RST_SHIFT, + OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT }, + { OMAP3430_VDD2_VOLTAGE_MANAGER_RST_SHIFT, + OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT }, + { OMAP3430_ICEPICK_RST_SHIFT, OMAP_ICEPICK_RST_SRC_ID_SHIFT }, + { OMAP3430_ICECRUSHER_RST_SHIFT, OMAP_ICECRUSHER_RST_SRC_ID_SHIFT }, + { -1, -1 }, +}; + +/* PRM VP */ + +/* + * struct omap3_vp - OMAP3 VP register access description. + * @tranxdone_status: VP_TRANXDONE_ST bitmask in PRM_IRQSTATUS_MPU reg + */ +struct omap3_vp { + u32 tranxdone_status; +}; + +static struct omap3_vp omap3_vp[] = { + [OMAP3_VP_VDD_MPU_ID] = { + .tranxdone_status = OMAP3430_VP1_TRANXDONE_ST_MASK, + }, + [OMAP3_VP_VDD_CORE_ID] = { + .tranxdone_status = OMAP3430_VP2_TRANXDONE_ST_MASK, + }, +}; + +#define MAX_VP_ID ARRAY_SIZE(omap3_vp); + +u32 omap3_prm_vp_check_txdone(u8 vp_id) +{ + struct omap3_vp *vp = &omap3_vp[vp_id]; + u32 irqstatus; + + irqstatus = omap2_prm_read_mod_reg(OCP_MOD, + OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + return irqstatus & vp->tranxdone_status; +} + +void omap3_prm_vp_clear_txdone(u8 vp_id) +{ + struct omap3_vp *vp = &omap3_vp[vp_id]; + + omap2_prm_write_mod_reg(vp->tranxdone_status, + OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); +} + +u32 omap3_prm_vcvp_read(u8 offset) +{ + return omap2_prm_read_mod_reg(OMAP3430_GR_MOD, offset); +} + +void omap3_prm_vcvp_write(u32 val, u8 offset) +{ + omap2_prm_write_mod_reg(val, OMAP3430_GR_MOD, offset); +} + +u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset) +{ + return omap2_prm_rmw_mod_reg_bits(mask, bits, OMAP3430_GR_MOD, offset); +} + +/** + * omap3xxx_prm_read_pending_irqs - read pending PRM MPU IRQs into @events + * @events: ptr to a u32, preallocated by caller + * + * Read PRM_IRQSTATUS_MPU bits, AND'ed with the currently-enabled PRM + * MPU IRQs, and store the result into the u32 pointed to by @events. + * No return value. + */ +void omap3xxx_prm_read_pending_irqs(unsigned long *events) +{ + u32 mask, st; + + /* XXX Can the mask read be avoided (e.g., can it come from RAM?) */ + mask = omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); + st = omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + + events[0] = mask & st; +} + +/** + * omap3xxx_prm_ocp_barrier - force buffered MPU writes to the PRM to complete + * + * Force any buffered writes to the PRM IP block to complete. Needed + * by the PRM IRQ handler, which reads and writes directly to the IP + * block, to avoid race conditions after acknowledging or clearing IRQ + * bits. No return value. + */ +void omap3xxx_prm_ocp_barrier(void) +{ + omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_REVISION_OFFSET); +} + +/** + * omap3xxx_prm_save_and_clear_irqen - save/clear PRM_IRQENABLE_MPU reg + * @saved_mask: ptr to a u32 array to save IRQENABLE bits + * + * Save the PRM_IRQENABLE_MPU register to @saved_mask. @saved_mask + * must be allocated by the caller. Intended to be used in the PRM + * interrupt handler suspend callback. The OCP barrier is needed to + * ensure the write to disable PRM interrupts reaches the PRM before + * returning; otherwise, spurious interrupts might occur. No return + * value. + */ +void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask) +{ + saved_mask[0] = omap2_prm_read_mod_reg(OCP_MOD, + OMAP3_PRM_IRQENABLE_MPU_OFFSET); + omap2_prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); + + /* OCP barrier */ + omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_REVISION_OFFSET); +} + +/** + * omap3xxx_prm_restore_irqen - set PRM_IRQENABLE_MPU register from args + * @saved_mask: ptr to a u32 array of IRQENABLE bits saved previously + * + * Restore the PRM_IRQENABLE_MPU register from @saved_mask. Intended + * to be used in the PRM interrupt handler resume callback to restore + * values saved by omap3xxx_prm_save_and_clear_irqen(). No OCP + * barrier should be needed here; any pending PRM interrupts will fire + * once the writes reach the PRM. No return value. + */ +void omap3xxx_prm_restore_irqen(u32 *saved_mask) +{ + omap2_prm_write_mod_reg(saved_mask[0], OCP_MOD, + OMAP3_PRM_IRQENABLE_MPU_OFFSET); +} + +/** + * omap3xxx_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain + * + * Clear any previously-latched I/O wakeup events and ensure that the + * I/O wakeup gates are aligned with the current mux settings. Works + * by asserting WUCLKIN, waiting for WUCLKOUT to be asserted, and then + * deasserting WUCLKIN and clearing the ST_IO_CHAIN WKST bit. No + * return value. + */ +void omap3xxx_prm_reconfigure_io_chain(void) +{ + int i = 0; + + omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD, + PM_WKEN); + + omap_test_timeout(omap2_prm_read_mod_reg(WKUP_MOD, PM_WKST) & + OMAP3430_ST_IO_CHAIN_MASK, + MAX_IOPAD_LATCH_TIME, i); + if (i == MAX_IOPAD_LATCH_TIME) + pr_warn("PRM: I/O chain clock line assertion timed out\n"); + + omap2_prm_clear_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD, + PM_WKEN); + + omap2_prm_set_mod_reg_bits(OMAP3430_ST_IO_CHAIN_MASK, WKUP_MOD, + PM_WKST); + + omap2_prm_read_mod_reg(WKUP_MOD, PM_WKST); +} + +/** + * omap3xxx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches + * + * Activates the I/O wakeup event latches and allows events logged by + * those latches to signal a wakeup event to the PRCM. For I/O + * wakeups to occur, WAKEUPENABLE bits must be set in the pad mux + * registers, and omap3xxx_prm_reconfigure_io_chain() must be called. + * No return value. + */ +static void __init omap3xxx_prm_enable_io_wakeup(void) +{ + if (omap3_has_io_wakeup()) + omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, + PM_WKEN); +} + +/** + * omap3xxx_prm_read_reset_sources - return the last SoC reset source + * + * Return a u32 representing the last reset sources of the SoC. The + * returned reset source bits are standardized across OMAP SoCs. + */ +static u32 omap3xxx_prm_read_reset_sources(void) +{ + struct prm_reset_src_map *p; + u32 r = 0; + u32 v; + + v = omap2_prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST); + + p = omap3xxx_prm_reset_src_map; + while (p->reg_shift >= 0 && p->std_shift >= 0) { + if (v & (1 << p->reg_shift)) + r |= 1 << p->std_shift; + p++; + } + + return r; +} + +/* Powerdomain low-level functions */ + +/* Applicable only for OMAP3. Not supported on OMAP2 */ +static int omap3_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, + OMAP3430_LASTPOWERSTATEENTERED_MASK); +} + +static int omap3_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, + OMAP3430_LOGICSTATEST_MASK); +} + +static int omap3_pwrdm_read_logic_retst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, + OMAP3430_LOGICSTATEST_MASK); +} + +static int omap3_pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, + OMAP3430_LASTLOGICSTATEENTERED_MASK); +} + +static int omap3_get_mem_bank_lastmemst_mask(u8 bank) +{ + switch (bank) { + case 0: + return OMAP3430_LASTMEM1STATEENTERED_MASK; + case 1: + return OMAP3430_LASTMEM2STATEENTERED_MASK; + case 2: + return OMAP3430_LASTSHAREDL2CACHEFLATSTATEENTERED_MASK; + case 3: + return OMAP3430_LASTL2FLATMEMSTATEENTERED_MASK; + default: + WARN_ON(1); /* should never happen */ + return -EEXIST; + } + return 0; +} + +static int omap3_pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m; + + m = omap3_get_mem_bank_lastmemst_mask(bank); + + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, m); +} + +static int omap3_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) +{ + omap2_prm_write_mod_reg(0, pwrdm->prcm_offs, OMAP3430_PM_PREPWSTST); + return 0; +} + +static int omap3_pwrdm_enable_hdwr_sar(struct powerdomain *pwrdm) +{ + return omap2_prm_rmw_mod_reg_bits(0, + 1 << OMAP3430ES2_SAVEANDRESTORE_SHIFT, + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); +} + +static int omap3_pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm) +{ + return omap2_prm_rmw_mod_reg_bits(1 << OMAP3430ES2_SAVEANDRESTORE_SHIFT, + 0, pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); +} + +struct pwrdm_ops omap3_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, + .pwrdm_read_prev_pwrst = omap3_pwrdm_read_prev_pwrst, + .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, + .pwrdm_read_logic_pwrst = omap3_pwrdm_read_logic_pwrst, + .pwrdm_read_logic_retst = omap3_pwrdm_read_logic_retst, + .pwrdm_read_prev_logic_pwrst = omap3_pwrdm_read_prev_logic_pwrst, + .pwrdm_set_mem_onst = omap2_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = omap2_pwrdm_set_mem_retst, + .pwrdm_read_mem_pwrst = omap2_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = omap2_pwrdm_read_mem_retst, + .pwrdm_read_prev_mem_pwrst = omap3_pwrdm_read_prev_mem_pwrst, + .pwrdm_clear_all_prev_pwrst = omap3_pwrdm_clear_all_prev_pwrst, + .pwrdm_enable_hdwr_sar = omap3_pwrdm_enable_hdwr_sar, + .pwrdm_disable_hdwr_sar = omap3_pwrdm_disable_hdwr_sar, + .pwrdm_wait_transition = omap2_pwrdm_wait_transition, +}; + +/* + * + */ + +static struct prm_ll_data omap3xxx_prm_ll_data = { + .read_reset_sources = &omap3xxx_prm_read_reset_sources, +}; + +static int __init omap3xxx_prm_init(void) +{ + int ret; + + if (!cpu_is_omap34xx()) + return 0; + + ret = prm_register(&omap3xxx_prm_ll_data); + if (ret) + return ret; + + omap3xxx_prm_enable_io_wakeup(); + ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup); + if (!ret) + irq_set_status_flags(omap_prcm_event_to_irq("io"), + IRQ_NOAUTOEN); + + + return ret; +} +subsys_initcall(omap3xxx_prm_init); + +static void __exit omap3xxx_prm_exit(void) +{ + if (!cpu_is_omap34xx()) + return; + + /* Should never happen */ + WARN(prm_unregister(&omap3xxx_prm_ll_data), + "%s: prm_ll_data function pointer mismatch\n", __func__); +} +__exitcall(omap3xxx_prm_exit); diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h new file mode 100644 index 0000000..a3c28a8 --- /dev/null +++ b/arch/arm/mach-omap2/prm3xxx.h @@ -0,0 +1,160 @@ +/* + * OMAP3xxx Power/Reset Management (PRM) register definitions + * + * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * The PRM hardware modules on the OMAP2/3 are quite similar to each + * other. The PRM on OMAP4 has a new register layout, and is handled + * in a separate file. + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM3XXX_H +#define __ARCH_ARM_MACH_OMAP2_PRM3XXX_H + +#include "prcm-common.h" +#include "prm.h" +#include "prm2xxx_3xxx.h" + +#define OMAP34XX_PRM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE + (module) + (reg)) + + +/* + * OMAP3-specific global PRM registers + * Use __raw_{read,write}l() with these registers. + * + * With a few exceptions, these are the register names beginning with + * PRM_* on 34xx. (The exceptions are the IRQSTATUS and IRQENABLE + * bits.) + */ + +#define OMAP3_PRM_REVISION_OFFSET 0x0004 +#define OMAP3430_PRM_REVISION OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0004) +#define OMAP3_PRM_SYSCONFIG_OFFSET 0x0014 +#define OMAP3430_PRM_SYSCONFIG OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0014) + +#define OMAP3_PRM_IRQSTATUS_MPU_OFFSET 0x0018 +#define OMAP3430_PRM_IRQSTATUS_MPU OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP3_PRM_IRQENABLE_MPU_OFFSET 0x001c +#define OMAP3430_PRM_IRQENABLE_MPU OMAP34XX_PRM_REGADDR(OCP_MOD, 0x001c) + + +#define OMAP3_PRM_VC_SMPS_SA_OFFSET 0x0020 +#define OMAP3430_PRM_VC_SMPS_SA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0020) +#define OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET 0x0024 +#define OMAP3430_PRM_VC_SMPS_VOL_RA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0024) +#define OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET 0x0028 +#define OMAP3430_PRM_VC_SMPS_CMD_RA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0028) +#define OMAP3_PRM_VC_CMD_VAL_0_OFFSET 0x002c +#define OMAP3430_PRM_VC_CMD_VAL_0 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x002c) +#define OMAP3_PRM_VC_CMD_VAL_1_OFFSET 0x0030 +#define OMAP3430_PRM_VC_CMD_VAL_1 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0030) +#define OMAP3_PRM_VC_CH_CONF_OFFSET 0x0034 +#define OMAP3430_PRM_VC_CH_CONF OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0034) +#define OMAP3_PRM_VC_I2C_CFG_OFFSET 0x0038 +#define OMAP3430_PRM_VC_I2C_CFG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0038) +#define OMAP3_PRM_VC_BYPASS_VAL_OFFSET 0x003c +#define OMAP3430_PRM_VC_BYPASS_VAL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x003c) +#define OMAP3_PRM_RSTCTRL_OFFSET 0x0050 +#define OMAP3430_PRM_RSTCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0050) +#define OMAP3_PRM_RSTTIME_OFFSET 0x0054 +#define OMAP3430_PRM_RSTTIME OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0054) +#define OMAP3_PRM_RSTST_OFFSET 0x0058 +#define OMAP3430_PRM_RSTST OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0058) +#define OMAP3_PRM_VOLTCTRL_OFFSET 0x0060 +#define OMAP3430_PRM_VOLTCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0060) +#define OMAP3_PRM_SRAM_PCHARGE_OFFSET 0x0064 +#define OMAP3430_PRM_SRAM_PCHARGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0064) +#define OMAP3_PRM_CLKSRC_CTRL_OFFSET 0x0070 +#define OMAP3430_PRM_CLKSRC_CTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0070) +#define OMAP3_PRM_VOLTSETUP1_OFFSET 0x0090 +#define OMAP3430_PRM_VOLTSETUP1 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0090) +#define OMAP3_PRM_VOLTOFFSET_OFFSET 0x0094 +#define OMAP3430_PRM_VOLTOFFSET OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0094) +#define OMAP3_PRM_CLKSETUP_OFFSET 0x0098 +#define OMAP3430_PRM_CLKSETUP OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0098) +#define OMAP3_PRM_POLCTRL_OFFSET 0x009c +#define OMAP3430_PRM_POLCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x009c) +#define OMAP3_PRM_VOLTSETUP2_OFFSET 0x00a0 +#define OMAP3430_PRM_VOLTSETUP2 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00a0) +#define OMAP3_PRM_VP1_CONFIG_OFFSET 0x00b0 +#define OMAP3430_PRM_VP1_CONFIG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b0) +#define OMAP3_PRM_VP1_VSTEPMIN_OFFSET 0x00b4 +#define OMAP3430_PRM_VP1_VSTEPMIN OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b4) +#define OMAP3_PRM_VP1_VSTEPMAX_OFFSET 0x00b8 +#define OMAP3430_PRM_VP1_VSTEPMAX OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b8) +#define OMAP3_PRM_VP1_VLIMITTO_OFFSET 0x00bc +#define OMAP3430_PRM_VP1_VLIMITTO OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00bc) +#define OMAP3_PRM_VP1_VOLTAGE_OFFSET 0x00c0 +#define OMAP3430_PRM_VP1_VOLTAGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c0) +#define OMAP3_PRM_VP1_STATUS_OFFSET 0x00c4 +#define OMAP3430_PRM_VP1_STATUS OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c4) +#define OMAP3_PRM_VP2_CONFIG_OFFSET 0x00d0 +#define OMAP3430_PRM_VP2_CONFIG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d0) +#define OMAP3_PRM_VP2_VSTEPMIN_OFFSET 0x00d4 +#define OMAP3430_PRM_VP2_VSTEPMIN OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d4) +#define OMAP3_PRM_VP2_VSTEPMAX_OFFSET 0x00d8 +#define OMAP3430_PRM_VP2_VSTEPMAX OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d8) +#define OMAP3_PRM_VP2_VLIMITTO_OFFSET 0x00dc +#define OMAP3430_PRM_VP2_VLIMITTO OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00dc) +#define OMAP3_PRM_VP2_VOLTAGE_OFFSET 0x00e0 +#define OMAP3430_PRM_VP2_VOLTAGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e0) +#define OMAP3_PRM_VP2_STATUS_OFFSET 0x00e4 +#define OMAP3430_PRM_VP2_STATUS OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e4) + +#define OMAP3_PRM_CLKSEL_OFFSET 0x0040 +#define OMAP3430_PRM_CLKSEL OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0040) +#define OMAP3_PRM_CLKOUT_CTRL_OFFSET 0x0070 +#define OMAP3430_PRM_CLKOUT_CTRL OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0070) + +/* OMAP3 specific register offsets */ +#define OMAP3430ES2_PM_WKEN3 0x00f0 +#define OMAP3430ES2_PM_WKST3 0x00b8 + +#define OMAP3430_PM_MPUGRPSEL 0x00a4 +#define OMAP3430_PM_MPUGRPSEL1 OMAP3430_PM_MPUGRPSEL +#define OMAP3430ES2_PM_MPUGRPSEL3 0x00f8 + +#define OMAP3430_PM_IVAGRPSEL 0x00a8 +#define OMAP3430_PM_IVAGRPSEL1 OMAP3430_PM_IVAGRPSEL +#define OMAP3430ES2_PM_IVAGRPSEL3 0x00f4 + +#define OMAP3430_PM_PREPWSTST 0x00e8 + +#define OMAP3430_PRM_IRQSTATUS_IVA2 0x00f8 +#define OMAP3430_PRM_IRQENABLE_IVA2 0x00fc + + +#ifndef __ASSEMBLER__ + +/* OMAP3-specific VP functions */ +u32 omap3_prm_vp_check_txdone(u8 vp_id); +void omap3_prm_vp_clear_txdone(u8 vp_id); + +/* + * OMAP3 access functions for voltage controller (VC) and + * voltage proccessor (VP) in the PRM. + */ +extern u32 omap3_prm_vcvp_read(u8 offset); +extern void omap3_prm_vcvp_write(u32 val, u8 offset); +extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset); + +extern void omap3xxx_prm_reconfigure_io_chain(void); + +/* PRM interrupt-related functions */ +extern void omap3xxx_prm_read_pending_irqs(unsigned long *events); +extern void omap3xxx_prm_ocp_barrier(void); +extern void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask); +extern void omap3xxx_prm_restore_irqen(u32 *saved_mask); + +extern u32 omap3xxx_prm_get_reset_sources(void); + +#endif /* __ASSEMBLER */ + + +#endif diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c index f0c4d5f..a799e95 100644 --- a/arch/arm/mach-omap2/prm44xx.c +++ b/arch/arm/mach-omap2/prm44xx.c @@ -1,10 +1,11 @@ /* * OMAP4 PRM module functions * - * Copyright (C) 2011 Texas Instruments, Inc. + * Copyright (C) 2011-2012 Texas Instruments, Inc. * Copyright (C) 2010 Nokia Corporation * Benoît Cousson * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -27,6 +28,9 @@ #include "prm-regbits-44xx.h" #include "prcm44xx.h" #include "prminst44xx.h" +#include "powerdomain.h" + +/* Static data */ static const struct omap_prcm_irq omap4_prcm_irqs[] = { OMAP_PRCM_IRQ("wkup", 0, 0), @@ -46,6 +50,33 @@ static struct omap_prcm_irq_setup omap4_prcm_irq_setup = { .restore_irqen = &omap44xx_prm_restore_irqen, }; +/* + * omap44xx_prm_reset_src_map - map from bits in the PRM_RSTST + * hardware register (which are specific to OMAP44xx SoCs) to reset + * source ID bit shifts (which is an OMAP SoC-independent + * enumeration) + */ +static struct prm_reset_src_map omap44xx_prm_reset_src_map[] = { + { OMAP4430_RST_GLOBAL_WARM_SW_SHIFT, + OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT }, + { OMAP4430_RST_GLOBAL_COLD_SW_SHIFT, + OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT }, + { OMAP4430_MPU_SECURITY_VIOL_RST_SHIFT, + OMAP_SECU_VIOL_RST_SRC_ID_SHIFT }, + { OMAP4430_MPU_WDT_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT }, + { OMAP4430_SECURE_WDT_RST_SHIFT, OMAP_SECU_WD_RST_SRC_ID_SHIFT }, + { OMAP4430_EXTERNAL_WARM_RST_SHIFT, OMAP_EXTWARM_RST_SRC_ID_SHIFT }, + { OMAP4430_VDD_MPU_VOLT_MGR_RST_SHIFT, + OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT }, + { OMAP4430_VDD_IVA_VOLT_MGR_RST_SHIFT, + OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT }, + { OMAP4430_VDD_CORE_VOLT_MGR_RST_SHIFT, + OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT }, + { OMAP4430_ICEPICK_RST_SHIFT, OMAP_ICEPICK_RST_SRC_ID_SHIFT }, + { OMAP4430_C2C_RST_SHIFT, OMAP_C2C_RST_SRC_ID_SHIFT }, + { -1, -1 }, +}; + /* PRM low-level functions */ /* Read a register in a CM/PRM instance in the PRM module */ @@ -291,12 +322,324 @@ static void __init omap44xx_prm_enable_io_wakeup(void) OMAP4_PRM_IO_PMCTRL_OFFSET); } -static int __init omap4xxx_prcm_init(void) +/** + * omap44xx_prm_read_reset_sources - return the last SoC reset source + * + * Return a u32 representing the last reset sources of the SoC. The + * returned reset source bits are standardized across OMAP SoCs. + */ +static u32 omap44xx_prm_read_reset_sources(void) +{ + struct prm_reset_src_map *p; + u32 r = 0; + u32 v; + + v = omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, + OMAP4_RM_RSTST); + + p = omap44xx_prm_reset_src_map; + while (p->reg_shift >= 0 && p->std_shift >= 0) { + if (v & (1 << p->reg_shift)) + r |= 1 << p->std_shift; + p++; + } + + return r; +} + +/* Powerdomain low-level functions */ + +static int omap4_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + omap4_prminst_rmw_inst_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_partition, + pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL); + return 0; +} + +static int omap4_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + v &= OMAP_POWERSTATE_MASK; + v >>= OMAP_POWERSTATE_SHIFT; + + return v; +} + +static int omap4_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTST); + v &= OMAP_POWERSTATEST_MASK; + v >>= OMAP_POWERSTATEST_SHIFT; + + return v; +} + +static int omap4_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTST); + v &= OMAP4430_LASTPOWERSTATEENTERED_MASK; + v >>= OMAP4430_LASTPOWERSTATEENTERED_SHIFT; + + return v; +} + +static int omap4_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm) +{ + omap4_prminst_rmw_inst_reg_bits(OMAP4430_LOWPOWERSTATECHANGE_MASK, + (1 << OMAP4430_LOWPOWERSTATECHANGE_SHIFT), + pwrdm->prcm_partition, + pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL); + return 0; +} + +static int omap4_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) +{ + omap4_prminst_rmw_inst_reg_bits(OMAP4430_LASTPOWERSTATEENTERED_MASK, + OMAP4430_LASTPOWERSTATEENTERED_MASK, + pwrdm->prcm_partition, + pwrdm->prcm_offs, OMAP4_PM_PWSTST); + return 0; +} + +static int omap4_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) +{ + u32 v; + + v = pwrst << __ffs(OMAP4430_LOGICRETSTATE_MASK); + omap4_prminst_rmw_inst_reg_bits(OMAP4430_LOGICRETSTATE_MASK, v, + pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + + return 0; +} + +static int omap4_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = omap2_pwrdm_get_mem_bank_onstate_mask(bank); + + omap4_prminst_rmw_inst_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + + return 0; +} + +static int omap4_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = omap2_pwrdm_get_mem_bank_retst_mask(bank); + + omap4_prminst_rmw_inst_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + + return 0; +} + +static int omap4_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTST); + v &= OMAP4430_LOGICSTATEST_MASK; + v >>= OMAP4430_LOGICSTATEST_SHIFT; + + return v; +} + +static int omap4_pwrdm_read_logic_retst(struct powerdomain *pwrdm) { - if (cpu_is_omap44xx()) { - omap44xx_prm_enable_io_wakeup(); - return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup); + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + v &= OMAP4430_LOGICRETSTATE_MASK; + v >>= OMAP4430_LOGICRETSTATE_SHIFT; + + return v; +} + +/** + * omap4_pwrdm_read_prev_logic_pwrst - read the previous logic powerstate + * @pwrdm: struct powerdomain * to read the state for + * + * Reads the previous logic powerstate for a powerdomain. This + * function must determine the previous logic powerstate by first + * checking the previous powerstate for the domain. If that was OFF, + * then logic has been lost. If previous state was RETENTION, the + * function reads the setting for the next retention logic state to + * see the actual value. In every other case, the logic is + * retained. Returns either PWRDM_POWER_OFF or PWRDM_POWER_RET + * depending whether the logic was retained or not. + */ +static int omap4_pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm) +{ + int state; + + state = omap4_pwrdm_read_prev_pwrst(pwrdm); + + if (state == PWRDM_POWER_OFF) + return PWRDM_POWER_OFF; + + if (state != PWRDM_POWER_RET) + return PWRDM_POWER_RET; + + return omap4_pwrdm_read_logic_retst(pwrdm); +} + +static int omap4_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m, v; + + m = omap2_pwrdm_get_mem_bank_stst_mask(bank); + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTST); + v &= m; + v >>= __ffs(m); + + return v; +} + +static int omap4_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m, v; + + m = omap2_pwrdm_get_mem_bank_retst_mask(bank); + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + v &= m; + v >>= __ffs(m); + + return v; +} + +/** + * omap4_pwrdm_read_prev_mem_pwrst - reads the previous memory powerstate + * @pwrdm: struct powerdomain * to read mem powerstate for + * @bank: memory bank index + * + * Reads the previous memory powerstate for a powerdomain. This + * function must determine the previous memory powerstate by first + * checking the previous powerstate for the domain. If that was OFF, + * then logic has been lost. If previous state was RETENTION, the + * function reads the setting for the next memory retention state to + * see the actual value. In every other case, the logic is + * retained. Returns either PWRDM_POWER_OFF or PWRDM_POWER_RET + * depending whether logic was retained or not. + */ +static int omap4_pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + int state; + + state = omap4_pwrdm_read_prev_pwrst(pwrdm); + + if (state == PWRDM_POWER_OFF) + return PWRDM_POWER_OFF; + + if (state != PWRDM_POWER_RET) + return PWRDM_POWER_RET; + + return omap4_pwrdm_read_mem_retst(pwrdm, bank); +} + +static int omap4_pwrdm_wait_transition(struct powerdomain *pwrdm) +{ + u32 c = 0; + + /* + * REVISIT: pwrdm_wait_transition() may be better implemented + * via a callback and a periodic timer check -- how long do we expect + * powerdomain transitions to take? + */ + + /* XXX Is this udelay() value meaningful? */ + while ((omap4_prminst_read_inst_reg(pwrdm->prcm_partition, + pwrdm->prcm_offs, + OMAP4_PM_PWSTST) & + OMAP_INTRANSITION_MASK) && + (c++ < PWRDM_TRANSITION_BAILOUT)) + udelay(1); + + if (c > PWRDM_TRANSITION_BAILOUT) { + pr_err("powerdomain: %s: waited too long to complete transition\n", + pwrdm->name); + return -EAGAIN; } + + pr_debug("powerdomain: completed transition in %d loops\n", c); + return 0; } -subsys_initcall(omap4xxx_prcm_init); + +struct pwrdm_ops omap4_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap4_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap4_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap4_pwrdm_read_pwrst, + .pwrdm_read_prev_pwrst = omap4_pwrdm_read_prev_pwrst, + .pwrdm_set_lowpwrstchange = omap4_pwrdm_set_lowpwrstchange, + .pwrdm_clear_all_prev_pwrst = omap4_pwrdm_clear_all_prev_pwrst, + .pwrdm_set_logic_retst = omap4_pwrdm_set_logic_retst, + .pwrdm_read_logic_pwrst = omap4_pwrdm_read_logic_pwrst, + .pwrdm_read_prev_logic_pwrst = omap4_pwrdm_read_prev_logic_pwrst, + .pwrdm_read_logic_retst = omap4_pwrdm_read_logic_retst, + .pwrdm_read_mem_pwrst = omap4_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = omap4_pwrdm_read_mem_retst, + .pwrdm_read_prev_mem_pwrst = omap4_pwrdm_read_prev_mem_pwrst, + .pwrdm_set_mem_onst = omap4_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = omap4_pwrdm_set_mem_retst, + .pwrdm_wait_transition = omap4_pwrdm_wait_transition, +}; + +/* + * XXX document + */ +static struct prm_ll_data omap44xx_prm_ll_data = { + .read_reset_sources = &omap44xx_prm_read_reset_sources, +}; + +static int __init omap44xx_prm_init(void) +{ + int ret; + + if (!cpu_is_omap44xx()) + return 0; + + ret = prm_register(&omap44xx_prm_ll_data); + if (ret) + return ret; + + omap44xx_prm_enable_io_wakeup(); + + return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup); +} +subsys_initcall(omap44xx_prm_init); + +static void __exit omap44xx_prm_exit(void) +{ + if (!cpu_is_omap44xx()) + return; + + /* Should never happen */ + WARN(prm_unregister(&omap44xx_prm_ll_data), + "%s: prm_ll_data function pointer mismatch\n", __func__); +} +__exitcall(omap44xx_prm_exit); diff --git a/arch/arm/mach-omap2/prm44xx.h b/arch/arm/mach-omap2/prm44xx.h index ee72ae6..c8e1acc 100644 --- a/arch/arm/mach-omap2/prm44xx.h +++ b/arch/arm/mach-omap2/prm44xx.h @@ -771,6 +771,8 @@ extern void omap44xx_prm_ocp_barrier(void); extern void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask); extern void omap44xx_prm_restore_irqen(u32 *saved_mask); +extern u32 omap44xx_prm_get_reset_sources(void); + # endif #endif diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index 6b4d332..945b4ad 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -24,10 +24,11 @@ #include <linux/interrupt.h> #include <linux/slab.h> -#include <plat/common.h> #include <plat/prcm.h> #include "prm2xxx_3xxx.h" +#include "prm2xxx.h" +#include "prm3xxx.h" #include "prm44xx.h" /* @@ -53,6 +54,13 @@ static struct irq_chip_generic **prcm_irq_chips; */ static struct omap_prcm_irq_setup *prcm_irq_setup; +/* + * prm_ll_data: function pointers to SoC-specific implementations of + * common PRM functions + */ +static struct prm_ll_data null_prm_ll_data; +static struct prm_ll_data *prm_ll_data = &null_prm_ll_data; + /* Private functions */ /* @@ -319,64 +327,71 @@ err: return -ENOMEM; } -/* - * Stubbed functions so that common files continue to build when - * custom builds are used - * XXX These are temporary and should be removed at the earliest possible - * opportunity +/** + * prm_read_reset_sources - return the sources of the SoC's last reset + * + * Return a u32 bitmask representing the reset sources that caused the + * SoC to reset. The low-level per-SoC functions called by this + * function remap the SoC-specific reset source bits into an + * OMAP-common set of reset source bits, defined in + * arch/arm/mach-omap2/prm.h. Returns the standardized reset source + * u32 bitmask from the hardware upon success, or returns (1 << + * OMAP_UNKNOWN_RST_SRC_ID_SHIFT) if no low-level read_reset_sources() + * function was registered. */ -u32 __weak omap2_prm_read_mod_reg(s16 module, u16 idx) +u32 prm_read_reset_sources(void) { - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); - return 0; -} + u32 ret = 1 << OMAP_UNKNOWN_RST_SRC_ID_SHIFT; -void __weak omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx) -{ - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); -} + if (prm_ll_data->read_reset_sources) + ret = prm_ll_data->read_reset_sources(); + else + WARN_ONCE(1, "prm: %s: no mapping function defined for reset sources\n", __func__); -u32 __weak omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, - s16 module, s16 idx) -{ - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); - return 0; + return ret; } -u32 __weak omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) +/** + * prm_register - register per-SoC low-level data with the PRM + * @pld: low-level per-SoC OMAP PRM data & function pointers to register + * + * Register per-SoC low-level OMAP PRM data and function pointers with + * the OMAP PRM common interface. The caller must keep the data + * pointed to by @pld valid until it calls prm_unregister() and + * it returns successfully. Returns 0 upon success, -EINVAL if @pld + * is NULL, or -EEXIST if prm_register() has already been called + * without an intervening prm_unregister(). + */ +int prm_register(struct prm_ll_data *pld) { - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); - return 0; -} + if (!pld) + return -EINVAL; -u32 __weak omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) -{ - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); - return 0; -} + if (prm_ll_data != &null_prm_ll_data) + return -EEXIST; -u32 __weak omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) -{ - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); - return 0; -} + prm_ll_data = pld; -int __weak omap2_prm_is_hardreset_asserted(s16 prm_mod, u8 shift) -{ - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); return 0; } -int __weak omap2_prm_assert_hardreset(s16 prm_mod, u8 shift) +/** + * prm_unregister - unregister per-SoC low-level data & function pointers + * @pld: low-level per-SoC OMAP PRM data & function pointers to unregister + * + * Unregister per-SoC low-level OMAP PRM data and function pointers + * that were previously registered with prm_register(). The + * caller may not destroy any of the data pointed to by @pld until + * this function returns successfully. Returns 0 upon success, or + * -EINVAL if @pld is NULL or if @pld does not match the struct + * prm_ll_data * previously registered by prm_register(). + */ +int prm_unregister(struct prm_ll_data *pld) { - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); - return 0; -} + if (!pld || prm_ll_data != pld) + return -EINVAL; + + prm_ll_data = &null_prm_ll_data; -int __weak omap2_prm_deassert_hardreset(s16 prm_mod, u8 rst_shift, - u8 st_shift) -{ - WARN(1, "prm: omap2xxx/omap3xxx specific function called on non-omap2xxx/3xxx\n"); return 0; } - diff --git a/arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h b/arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h index 8bfaf34..1ee58c2 100644 --- a/arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h +++ b/arch/arm/mach-omap2/sdram-hynix-h8mbx00u0mer-0em.h @@ -11,7 +11,7 @@ #ifndef __ARCH_ARM_MACH_OMAP2_SDRAM_HYNIX_H8MBX00U0MER0EM #define __ARCH_ARM_MACH_OMAP2_SDRAM_HYNIX_H8MBX00U0MER0EM -#include <plat/sdrc.h> +#include "sdrc.h" /* Hynix H8MBX00U0MER-0EM */ static struct omap_sdrc_params h8mbx00u0mer0em_sdrc_params[] = { diff --git a/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h b/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h index a391b49..85cccc0 100644 --- a/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h +++ b/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h @@ -14,7 +14,7 @@ #ifndef ARCH_ARM_MACH_OMAP2_SDRAM_MICRON_MT46H32M32LF #define ARCH_ARM_MACH_OMAP2_SDRAM_MICRON_MT46H32M32LF -#include <plat/sdrc.h> +#include "sdrc.h" /* Micron MT46H32M32LF-6 */ /* XXX Using ARE = 0x1 (no autorefresh burst) -- can this be changed? */ diff --git a/arch/arm/mach-omap2/sdram-nokia.c b/arch/arm/mach-omap2/sdram-nokia.c index 845c4fd..0fa7ffa 100644 --- a/arch/arm/mach-omap2/sdram-nokia.c +++ b/arch/arm/mach-omap2/sdram-nokia.c @@ -18,10 +18,8 @@ #include <linux/io.h> #include "common.h" -#include <plat/clock.h> -#include <plat/sdrc.h> - #include "sdram-nokia.h" +#include "sdrc.h" /* In picoseconds, except for tREF (ns), tXP, tCKE, tWTR (clks) */ struct sdram_timings { diff --git a/arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h b/arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h index cd43529..003f7bf 100644 --- a/arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h +++ b/arch/arm/mach-omap2/sdram-numonyx-m65kxxxxam.h @@ -11,7 +11,7 @@ #ifndef __ARCH_ARM_MACH_OMAP2_SDRAM_NUMONYX_M65KXXXXAM #define __ARCH_ARM_MACH_OMAP2_SDRAM_NUMONYX_M65KXXXXAM -#include <plat/sdrc.h> +#include "sdrc.h" /* Numonyx M65KXXXXAM */ static struct omap_sdrc_params m65kxxxxam_sdrc_params[] = { diff --git a/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h b/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h index 0e518a7..8dc3de5 100644 --- a/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h +++ b/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h @@ -14,7 +14,7 @@ #ifndef ARCH_ARM_MACH_OMAP2_SDRAM_QIMONDA_HYB18M512160AF6 #define ARCH_ARM_MACH_OMAP2_SDRAM_QIMONDA_HYB18M512160AF6 -#include <plat/sdrc.h> +#include "sdrc.h" /* Qimonda HYB18M512160AF-6 */ static struct omap_sdrc_params hyb18m512160af6_sdrc_params[] = { diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index e3d345f..c64ee19 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -24,10 +24,7 @@ #include <linux/io.h> #include "common.h" -#include <plat/clock.h> -#include <plat/sram.h> - -#include <plat/sdrc.h> +#include "clock.h" #include "sdrc.h" static struct omap_sdrc_params *sdrc_init_params_cs0, *sdrc_init_params_cs1; @@ -160,19 +157,3 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, sdrc_write_reg(l, SDRC_POWER); omap2_sms_save_context(); } - -void omap2_sms_write_rot_control(u32 val, unsigned ctx) -{ - sms_write_reg(val, SMS_ROT_CONTROL(ctx)); -} - -void omap2_sms_write_rot_size(u32 val, unsigned ctx) -{ - sms_write_reg(val, SMS_ROT_SIZE(ctx)); -} - -void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx) -{ - sms_write_reg(val, SMS_ROT_PHYSICAL_BA(ctx)); -} - diff --git a/arch/arm/mach-omap2/sdrc.h b/arch/arm/mach-omap2/sdrc.h index b3f8379..69c4b32 100644 --- a/arch/arm/mach-omap2/sdrc.h +++ b/arch/arm/mach-omap2/sdrc.h @@ -2,12 +2,14 @@ #define __ARCH_ARM_MACH_OMAP2_SDRC_H /* - * OMAP2 SDRC register definitions + * OMAP2/3 SDRC/SMS macros and prototypes * - * Copyright (C) 2007 Texas Instruments, Inc. - * Copyright (C) 2007 Nokia Corporation + * Copyright (C) 2007-2008, 2012 Texas Instruments, Inc. + * Copyright (C) 2007-2008 Nokia Corporation * - * Written by Paul Walmsley + * Paul Walmsley + * Tony Lindgren + * Richard Woodruff * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -15,8 +17,6 @@ */ #undef DEBUG -#include <plat/sdrc.h> - #ifndef __ASSEMBLER__ #include <linux/io.h> @@ -50,6 +50,58 @@ static inline u32 sms_read_reg(u16 reg) { return __raw_readl(OMAP_SMS_REGADDR(reg)); } + + +/** + * struct omap_sdrc_params - SDRC parameters for a given SDRC clock rate + * @rate: SDRC clock rate (in Hz) + * @actim_ctrla: Value to program to SDRC_ACTIM_CTRLA for this rate + * @actim_ctrlb: Value to program to SDRC_ACTIM_CTRLB for this rate + * @rfr_ctrl: Value to program to SDRC_RFR_CTRL for this rate + * @mr: Value to program to SDRC_MR for this rate + * + * This structure holds a pre-computed set of register values for the + * SDRC for a given SDRC clock rate and SDRAM chip. These are + * intended to be pre-computed and specified in an array in the board-*.c + * files. The structure is keyed off the 'rate' field. + */ +struct omap_sdrc_params { + unsigned long rate; + u32 actim_ctrla; + u32 actim_ctrlb; + u32 rfr_ctrl; + u32 mr; +}; + +#ifdef CONFIG_SOC_HAS_OMAP2_SDRC +void omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1); +#else +static inline void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) {}; +#endif + +int omap2_sdrc_get_params(unsigned long r, + struct omap_sdrc_params **sdrc_cs0, + struct omap_sdrc_params **sdrc_cs1); +void omap2_sms_save_context(void); +void omap2_sms_restore_context(void); + +struct memory_timings { + u32 m_type; /* ddr = 1, sdr = 0 */ + u32 dll_mode; /* use lock mode = 1, unlock mode = 0 */ + u32 slow_dll_ctrl; /* unlock mode, dll value for slow speed */ + u32 fast_dll_ctrl; /* unlock mode, dll value for fast speed */ + u32 base_cs; /* base chip select to use for calculations */ +}; + +extern void omap2xxx_sdrc_init_params(u32 force_lock_to_unlock_mode); +struct omap_sdrc_params *rx51_get_sdram_timings(void); + +u32 omap2xxx_sdrc_dll_is_unlocked(void); +u32 omap2xxx_sdrc_reprogram(u32 level, u32 force); + + #else #define OMAP242X_SDRC_REGADDR(reg) \ OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE + (reg)) @@ -57,6 +109,7 @@ static inline u32 sms_read_reg(u16 reg) OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE + (reg)) #define OMAP34XX_SDRC_REGADDR(reg) \ OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE + (reg)) + #endif /* __ASSEMBLER__ */ /* Minimum frequency that the SDRC DLL can lock at */ @@ -74,4 +127,85 @@ static inline u32 sms_read_reg(u16 reg) */ #define SDRC_MPURATE_LOOPS 96 +/* SDRC register offsets - read/write with sdrc_{read,write}_reg() */ + +#define SDRC_SYSCONFIG 0x010 +#define SDRC_CS_CFG 0x040 +#define SDRC_SHARING 0x044 +#define SDRC_ERR_TYPE 0x04C +#define SDRC_DLLA_CTRL 0x060 +#define SDRC_DLLA_STATUS 0x064 +#define SDRC_DLLB_CTRL 0x068 +#define SDRC_DLLB_STATUS 0x06C +#define SDRC_POWER 0x070 +#define SDRC_MCFG_0 0x080 +#define SDRC_MR_0 0x084 +#define SDRC_EMR2_0 0x08c +#define SDRC_ACTIM_CTRL_A_0 0x09c +#define SDRC_ACTIM_CTRL_B_0 0x0a0 +#define SDRC_RFR_CTRL_0 0x0a4 +#define SDRC_MANUAL_0 0x0a8 +#define SDRC_MCFG_1 0x0B0 +#define SDRC_MR_1 0x0B4 +#define SDRC_EMR2_1 0x0BC +#define SDRC_ACTIM_CTRL_A_1 0x0C4 +#define SDRC_ACTIM_CTRL_B_1 0x0C8 +#define SDRC_RFR_CTRL_1 0x0D4 +#define SDRC_MANUAL_1 0x0D8 + +#define SDRC_POWER_AUTOCOUNT_SHIFT 8 +#define SDRC_POWER_AUTOCOUNT_MASK (0xffff << SDRC_POWER_AUTOCOUNT_SHIFT) +#define SDRC_POWER_CLKCTRL_SHIFT 4 +#define SDRC_POWER_CLKCTRL_MASK (0x3 << SDRC_POWER_CLKCTRL_SHIFT) +#define SDRC_SELF_REFRESH_ON_AUTOCOUNT (0x2 << SDRC_POWER_CLKCTRL_SHIFT) + +/* + * These values represent the number of memory clock cycles between + * autorefresh initiation. They assume 1 refresh per 64 ms (JEDEC), 8192 + * rows per device, and include a subtraction of a 50 cycle window in the + * event that the autorefresh command is delayed due to other SDRC activity. + * The '| 1' sets the ARE field to send one autorefresh when the autorefresh + * counter reaches 0. + * + * These represent optimal values for common parts, it won't work for all. + * As long as you scale down, most parameters are still work, they just + * become sub-optimal. The RFR value goes in the opposite direction. If you + * don't adjust it down as your clock period increases the refresh interval + * will not be met. Setting all parameters for complete worst case may work, + * but may cut memory performance by 2x. Due to errata the DLLs need to be + * unlocked and their value needs run time calibration. A dynamic call is + * need for that as no single right value exists acorss production samples. + * + * Only the FULL speed values are given. Current code is such that rate + * changes must be made at DPLLoutx2. The actual value adjustment for low + * frequency operation will be handled by omap_set_performance() + * + * By having the boot loader boot up in the fastest L4 speed available likely + * will result in something which you can switch between. + */ +#define SDRC_RFR_CTRL_165MHz (0x00044c00 | 1) +#define SDRC_RFR_CTRL_133MHz (0x0003de00 | 1) +#define SDRC_RFR_CTRL_100MHz (0x0002da01 | 1) +#define SDRC_RFR_CTRL_110MHz (0x0002da01 | 1) /* Need to calc */ +#define SDRC_RFR_CTRL_BYPASS (0x00005000 | 1) /* Need to calc */ + + +/* + * SMS register access + */ + +#define OMAP242X_SMS_REGADDR(reg) \ + (void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE + reg) +#define OMAP243X_SMS_REGADDR(reg) \ + (void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE + reg) +#define OMAP343X_SMS_REGADDR(reg) \ + (void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE + reg) + +/* SMS register offsets - read/write with sms_{read,write}_reg() */ + +#define SMS_SYSCONFIG 0x010 +/* REVISIT: fill in other SMS registers here */ + + + #endif diff --git a/arch/arm/mach-omap2/sdrc2xxx.c b/arch/arm/mach-omap2/sdrc2xxx.c index 73e55e4..9072917 100644 --- a/arch/arm/mach-omap2/sdrc2xxx.c +++ b/arch/arm/mach-omap2/sdrc2xxx.c @@ -24,16 +24,13 @@ #include <linux/clk.h> #include <linux/io.h> -#include <plat/clock.h> -#include <plat/sram.h> -#include <plat/sdrc.h> - #include "soc.h" #include "iomap.h" #include "common.h" -#include "prm2xxx_3xxx.h" +#include "prm2xxx.h" #include "clock.h" #include "sdrc.h" +#include "sram.h" /* Memory timing, DLL mode flags */ #define M_DDR 1 diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index a507cd6..aa30a3c 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -28,19 +28,20 @@ #include <linux/console.h> #include <plat/omap-serial.h> -#include "common.h" -#include <plat/dma.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> -#include <plat/omap-pm.h> -#include <plat/serial.h> +#include <plat-omap/dma-omap.h> +#include "common.h" +#include "omap_hwmod.h" +#include "omap_device.h" +#include "omap-pm.h" +#include "soc.h" #include "prm2xxx_3xxx.h" #include "pm.h" #include "cm2xxx_3xxx.h" #include "prm-regbits-34xx.h" #include "control.h" #include "mux.h" +#include "serial.h" /* * NOTE: By default the serial auto_suspend timeout is disabled as it causes diff --git a/arch/arm/mach-omap2/serial.h b/arch/arm/mach-omap2/serial.h new file mode 100644 index 0000000..c4014f0 --- /dev/null +++ b/arch/arm/mach-omap2/serial.h @@ -0,0 +1 @@ +#include <mach/serial.h> diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S index 5069879..d1dedc8 100644 --- a/arch/arm/mach-omap2/sleep34xx.S +++ b/arch/arm/mach-omap2/sleep34xx.S @@ -26,13 +26,12 @@ #include <asm/assembler.h> -#include <plat/sram.h> - #include "omap34xx.h" #include "iomap.h" -#include "cm2xxx_3xxx.h" -#include "prm2xxx_3xxx.h" +#include "cm3xxx.h" +#include "prm3xxx.h" #include "sdrc.h" +#include "sram.h" #include "control.h" /* diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h index fc9b96d..0700964 100644 --- a/arch/arm/mach-omap2/soc.h +++ b/arch/arm/mach-omap2/soc.h @@ -1,7 +1,473 @@ -#include <plat/cpu.h> +/* + * OMAP cpu type detection + * + * Copyright (C) 2004, 2008 Nokia Corporation + * + * Copyright (C) 2009-11 Texas Instruments. + * + * Written by Tony Lindgren <tony.lindgren@nokia.com> + * + * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + #include "omap24xx.h" #include "omap34xx.h" #include "omap44xx.h" #include "ti81xx.h" #include "am33xx.h" #include "omap54xx.h" + +#ifndef __ASSEMBLY__ + +#include <linux/bitops.h> + +/* + * Test if multicore OMAP support is needed + */ +#undef MULTI_OMAP2 +#undef OMAP_NAME + +#ifdef CONFIG_SOC_OMAP2420 +# ifdef OMAP_NAME +# undef MULTI_OMAP2 +# define MULTI_OMAP2 +# else +# define OMAP_NAME omap2420 +# endif +#endif +#ifdef CONFIG_SOC_OMAP2430 +# ifdef OMAP_NAME +# undef MULTI_OMAP2 +# define MULTI_OMAP2 +# else +# define OMAP_NAME omap2430 +# endif +#endif +#ifdef CONFIG_ARCH_OMAP3 +# ifdef OMAP_NAME +# undef MULTI_OMAP2 +# define MULTI_OMAP2 +# else +# define OMAP_NAME omap3 +# endif +#endif +#ifdef CONFIG_ARCH_OMAP4 +# ifdef OMAP_NAME +# undef MULTI_OMAP2 +# define MULTI_OMAP2 +# else +# define OMAP_NAME omap4 +# endif +#endif + +#ifdef CONFIG_SOC_OMAP5 +# ifdef OMAP_NAME +# undef MULTI_OMAP2 +# define MULTI_OMAP2 +# else +# define OMAP_NAME omap5 +# endif +#endif + +#ifdef CONFIG_SOC_AM33XX +# ifdef OMAP_NAME +# undef MULTI_OMAP2 +# define MULTI_OMAP2 +# else +# define OMAP_NAME am33xx +# endif +#endif + +/* + * Omap device type i.e. EMU/HS/TST/GP/BAD + */ +#define OMAP2_DEVICE_TYPE_TEST 0 +#define OMAP2_DEVICE_TYPE_EMU 1 +#define OMAP2_DEVICE_TYPE_SEC 2 +#define OMAP2_DEVICE_TYPE_GP 3 +#define OMAP2_DEVICE_TYPE_BAD 4 + +int omap_type(void); + +/* + * omap_rev bits: + * CPU id bits (0730, 1510, 1710, 2422...) [31:16] + * CPU revision (See _REV_ defined in cpu.h) [15:08] + * CPU class bits (15xx, 16xx, 24xx, 34xx...) [07:00] + */ +unsigned int omap_rev(void); + +/* + * Get the CPU revision for OMAP devices + */ +#define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff) + +/* + * Macros to group OMAP into cpu classes. + * These can be used in most places. + * cpu_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430 + * cpu_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423 + * cpu_is_omap243x(): True for OMAP2430 + * cpu_is_omap343x(): True for OMAP3430 + * cpu_is_omap443x(): True for OMAP4430 + * cpu_is_omap446x(): True for OMAP4460 + * cpu_is_omap447x(): True for OMAP4470 + * soc_is_omap543x(): True for OMAP5430, OMAP5432 + */ +#define GET_OMAP_CLASS (omap_rev() & 0xff) + +#define IS_OMAP_CLASS(class, id) \ +static inline int is_omap ##class (void) \ +{ \ + return (GET_OMAP_CLASS == (id)) ? 1 : 0; \ +} + +#define GET_AM_CLASS ((omap_rev() >> 24) & 0xff) + +#define IS_AM_CLASS(class, id) \ +static inline int is_am ##class (void) \ +{ \ + return (GET_AM_CLASS == (id)) ? 1 : 0; \ +} + +#define GET_TI_CLASS ((omap_rev() >> 24) & 0xff) + +#define IS_TI_CLASS(class, id) \ +static inline int is_ti ##class (void) \ +{ \ + return (GET_TI_CLASS == (id)) ? 1 : 0; \ +} + +#define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff) + +#define IS_OMAP_SUBCLASS(subclass, id) \ +static inline int is_omap ##subclass (void) \ +{ \ + return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ +} + +#define IS_TI_SUBCLASS(subclass, id) \ +static inline int is_ti ##subclass (void) \ +{ \ + return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ +} + +#define IS_AM_SUBCLASS(subclass, id) \ +static inline int is_am ##subclass (void) \ +{ \ + return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ +} + +IS_OMAP_CLASS(24xx, 0x24) +IS_OMAP_CLASS(34xx, 0x34) +IS_OMAP_CLASS(44xx, 0x44) +IS_AM_CLASS(35xx, 0x35) +IS_OMAP_CLASS(54xx, 0x54) +IS_AM_CLASS(33xx, 0x33) + +IS_TI_CLASS(81xx, 0x81) + +IS_OMAP_SUBCLASS(242x, 0x242) +IS_OMAP_SUBCLASS(243x, 0x243) +IS_OMAP_SUBCLASS(343x, 0x343) +IS_OMAP_SUBCLASS(363x, 0x363) +IS_OMAP_SUBCLASS(443x, 0x443) +IS_OMAP_SUBCLASS(446x, 0x446) +IS_OMAP_SUBCLASS(447x, 0x447) +IS_OMAP_SUBCLASS(543x, 0x543) + +IS_TI_SUBCLASS(816x, 0x816) +IS_TI_SUBCLASS(814x, 0x814) +IS_AM_SUBCLASS(335x, 0x335) + +#define cpu_is_omap24xx() 0 +#define cpu_is_omap242x() 0 +#define cpu_is_omap243x() 0 +#define cpu_is_omap34xx() 0 +#define cpu_is_omap343x() 0 +#define cpu_is_ti81xx() 0 +#define cpu_is_ti816x() 0 +#define cpu_is_ti814x() 0 +#define soc_is_am35xx() 0 +#define soc_is_am33xx() 0 +#define soc_is_am335x() 0 +#define cpu_is_omap44xx() 0 +#define cpu_is_omap443x() 0 +#define cpu_is_omap446x() 0 +#define cpu_is_omap447x() 0 +#define soc_is_omap54xx() 0 +#define soc_is_omap543x() 0 + +#if defined(MULTI_OMAP2) +# if defined(CONFIG_ARCH_OMAP2) +# undef cpu_is_omap24xx +# define cpu_is_omap24xx() is_omap24xx() +# endif +# if defined (CONFIG_SOC_OMAP2420) +# undef cpu_is_omap242x +# define cpu_is_omap242x() is_omap242x() +# endif +# if defined (CONFIG_SOC_OMAP2430) +# undef cpu_is_omap243x +# define cpu_is_omap243x() is_omap243x() +# endif +# if defined(CONFIG_ARCH_OMAP3) +# undef cpu_is_omap34xx +# undef cpu_is_omap343x +# define cpu_is_omap34xx() is_omap34xx() +# define cpu_is_omap343x() is_omap343x() +# endif +#else +# if defined(CONFIG_ARCH_OMAP2) +# undef cpu_is_omap24xx +# define cpu_is_omap24xx() 1 +# endif +# if defined(CONFIG_SOC_OMAP2420) +# undef cpu_is_omap242x +# define cpu_is_omap242x() 1 +# endif +# if defined(CONFIG_SOC_OMAP2430) +# undef cpu_is_omap243x +# define cpu_is_omap243x() 1 +# endif +# if defined(CONFIG_ARCH_OMAP3) +# undef cpu_is_omap34xx +# define cpu_is_omap34xx() 1 +# endif +# if defined(CONFIG_SOC_OMAP3430) +# undef cpu_is_omap343x +# define cpu_is_omap343x() 1 +# endif +#endif + +/* + * Macros to detect individual cpu types. + * These are only rarely needed. + * cpu_is_omap2420(): True for OMAP2420 + * cpu_is_omap2422(): True for OMAP2422 + * cpu_is_omap2423(): True for OMAP2423 + * cpu_is_omap2430(): True for OMAP2430 + * cpu_is_omap3430(): True for OMAP3430 + */ +#define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff) + +#define IS_OMAP_TYPE(type, id) \ +static inline int is_omap ##type (void) \ +{ \ + return (GET_OMAP_TYPE == (id)) ? 1 : 0; \ +} + +IS_OMAP_TYPE(2420, 0x2420) +IS_OMAP_TYPE(2422, 0x2422) +IS_OMAP_TYPE(2423, 0x2423) +IS_OMAP_TYPE(2430, 0x2430) +IS_OMAP_TYPE(3430, 0x3430) + +#define cpu_is_omap2420() 0 +#define cpu_is_omap2422() 0 +#define cpu_is_omap2423() 0 +#define cpu_is_omap2430() 0 +#define cpu_is_omap3430() 0 +#define cpu_is_omap3630() 0 +#define soc_is_omap5430() 0 + +/* These are needed for the common code */ +#ifdef CONFIG_ARCH_OMAP2PLUS +#define cpu_is_omap7xx() 0 +#define cpu_is_omap15xx() 0 +#define cpu_is_omap16xx() 0 +#define cpu_is_omap1510() 0 +#define cpu_is_omap1610() 0 +#define cpu_is_omap1611() 0 +#define cpu_is_omap1621() 0 +#define cpu_is_omap1710() 0 +#define cpu_class_is_omap1() 0 +#define cpu_class_is_omap2() 1 +#endif + +#if defined(CONFIG_ARCH_OMAP2) +# undef cpu_is_omap2420 +# undef cpu_is_omap2422 +# undef cpu_is_omap2423 +# undef cpu_is_omap2430 +# define cpu_is_omap2420() is_omap2420() +# define cpu_is_omap2422() is_omap2422() +# define cpu_is_omap2423() is_omap2423() +# define cpu_is_omap2430() is_omap2430() +#endif + +#if defined(CONFIG_ARCH_OMAP3) +# undef cpu_is_omap3430 +# undef cpu_is_ti81xx +# undef cpu_is_ti816x +# undef cpu_is_ti814x +# undef soc_is_am35xx +# define cpu_is_omap3430() is_omap3430() +# undef cpu_is_omap3630 +# define cpu_is_omap3630() is_omap363x() +# define cpu_is_ti81xx() is_ti81xx() +# define cpu_is_ti816x() is_ti816x() +# define cpu_is_ti814x() is_ti814x() +# define soc_is_am35xx() is_am35xx() +#endif + +# if defined(CONFIG_SOC_AM33XX) +# undef soc_is_am33xx +# undef soc_is_am335x +# define soc_is_am33xx() is_am33xx() +# define soc_is_am335x() is_am335x() +#endif + +# if defined(CONFIG_ARCH_OMAP4) +# undef cpu_is_omap44xx +# undef cpu_is_omap443x +# undef cpu_is_omap446x +# undef cpu_is_omap447x +# define cpu_is_omap44xx() is_omap44xx() +# define cpu_is_omap443x() is_omap443x() +# define cpu_is_omap446x() is_omap446x() +# define cpu_is_omap447x() is_omap447x() +# endif + +# if defined(CONFIG_SOC_OMAP5) +# undef soc_is_omap54xx +# undef soc_is_omap543x +# define soc_is_omap54xx() is_omap54xx() +# define soc_is_omap543x() is_omap543x() +#endif + +/* Various silicon revisions for omap2 */ +#define OMAP242X_CLASS 0x24200024 +#define OMAP2420_REV_ES1_0 OMAP242X_CLASS +#define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8)) + +#define OMAP243X_CLASS 0x24300024 +#define OMAP2430_REV_ES1_0 OMAP243X_CLASS + +#define OMAP343X_CLASS 0x34300034 +#define OMAP3430_REV_ES1_0 OMAP343X_CLASS +#define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8)) +#define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8)) +#define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8)) +#define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8)) +#define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8)) + +#define OMAP363X_CLASS 0x36300034 +#define OMAP3630_REV_ES1_0 OMAP363X_CLASS +#define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8)) +#define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8)) + +#define TI816X_CLASS 0x81600034 +#define TI8168_REV_ES1_0 TI816X_CLASS +#define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8)) + +#define TI814X_CLASS 0x81400034 +#define TI8148_REV_ES1_0 TI814X_CLASS +#define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8)) +#define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8)) + +#define AM35XX_CLASS 0x35170034 +#define AM35XX_REV_ES1_0 AM35XX_CLASS +#define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8)) + +#define AM335X_CLASS 0x33500033 +#define AM335X_REV_ES1_0 AM335X_CLASS + +#define OMAP443X_CLASS 0x44300044 +#define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8)) +#define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8)) +#define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8)) +#define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8)) +#define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8)) + +#define OMAP446X_CLASS 0x44600044 +#define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8)) +#define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8)) + +#define OMAP447X_CLASS 0x44700044 +#define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8)) + +#define OMAP54XX_CLASS 0x54000054 +#define OMAP5430_REV_ES1_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8)) +#define OMAP5432_REV_ES1_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8)) + +void omap2xxx_check_revision(void); +void omap3xxx_check_revision(void); +void omap4xxx_check_revision(void); +void omap5xxx_check_revision(void); +void omap3xxx_check_features(void); +void ti81xx_check_features(void); +void omap4xxx_check_features(void); + +/* + * Runtime detection of OMAP3 features + * + * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip + * family have OS-level control over the I/O chain clock. This is + * to avoid a window during which wakeups could potentially be lost + * during powerdomain transitions. If this bit is set, it + * indicates that the chip does support OS-level control of this + * feature. + */ +extern u32 omap_features; + +#define OMAP3_HAS_L2CACHE BIT(0) +#define OMAP3_HAS_IVA BIT(1) +#define OMAP3_HAS_SGX BIT(2) +#define OMAP3_HAS_NEON BIT(3) +#define OMAP3_HAS_ISP BIT(4) +#define OMAP3_HAS_192MHZ_CLK BIT(5) +#define OMAP3_HAS_IO_WAKEUP BIT(6) +#define OMAP3_HAS_SDRC BIT(7) +#define OMAP3_HAS_IO_CHAIN_CTRL BIT(8) +#define OMAP4_HAS_MPU_1GHZ BIT(9) +#define OMAP4_HAS_MPU_1_2GHZ BIT(10) +#define OMAP4_HAS_MPU_1_5GHZ BIT(11) + + +#define OMAP3_HAS_FEATURE(feat,flag) \ +static inline unsigned int omap3_has_ ##feat(void) \ +{ \ + return omap_features & OMAP3_HAS_ ##flag; \ +} \ + +OMAP3_HAS_FEATURE(l2cache, L2CACHE) +OMAP3_HAS_FEATURE(sgx, SGX) +OMAP3_HAS_FEATURE(iva, IVA) +OMAP3_HAS_FEATURE(neon, NEON) +OMAP3_HAS_FEATURE(isp, ISP) +OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK) +OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP) +OMAP3_HAS_FEATURE(sdrc, SDRC) +OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL) + +/* + * Runtime detection of OMAP4 features + */ +#define OMAP4_HAS_FEATURE(feat, flag) \ +static inline unsigned int omap4_has_ ##feat(void) \ +{ \ + return omap_features & OMAP4_HAS_ ##flag; \ +} \ + +OMAP4_HAS_FEATURE(mpu_1ghz, MPU_1GHZ) +OMAP4_HAS_FEATURE(mpu_1_2ghz, MPU_1_2GHZ) +OMAP4_HAS_FEATURE(mpu_1_5ghz, MPU_1_5GHZ) + +#endif /* __ASSEMBLY__ */ + diff --git a/arch/arm/mach-omap2/sr_device.c b/arch/arm/mach-omap2/sr_device.c index f8217a5..b0e77a4 100644 --- a/arch/arm/mach-omap2/sr_device.c +++ b/arch/arm/mach-omap2/sr_device.c @@ -23,8 +23,8 @@ #include <linux/slab.h> #include <linux/io.h> -#include <plat/omap_device.h> - +#include "soc.h" +#include "omap_device.h" #include "voltage.h" #include "control.h" #include "pm.h" diff --git a/arch/arm/mach-omap2/sram.c b/arch/arm/mach-omap2/sram.c new file mode 100644 index 0000000..0ff0f06 --- /dev/null +++ b/arch/arm/mach-omap2/sram.c @@ -0,0 +1,305 @@ +/* + * + * OMAP SRAM detection and management + * + * Copyright (C) 2005 Nokia Corporation + * Written by Tony Lindgren <tony@atomide.com> + * + * Copyright (C) 2009-2012 Texas Instruments + * Added OMAP4/5 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> + +#include <asm/fncpy.h> +#include <asm/tlb.h> +#include <asm/cacheflush.h> + +#include <asm/mach/map.h> + +#include "soc.h" +#include "iomap.h" +#include "prm2xxx_3xxx.h" +#include "sdrc.h" +#include "sram.h" + +#define OMAP2_SRAM_PUB_PA (OMAP2_SRAM_PA + 0xf800) +#define OMAP3_SRAM_PUB_PA (OMAP3_SRAM_PA + 0x8000) +#ifdef CONFIG_OMAP4_ERRATA_I688 +#define OMAP4_SRAM_PUB_PA OMAP4_SRAM_PA +#else +#define OMAP4_SRAM_PUB_PA (OMAP4_SRAM_PA + 0x4000) +#endif +#define OMAP5_SRAM_PA 0x40300000 + +#define SRAM_BOOTLOADER_SZ 0x00 + +#define OMAP24XX_VA_REQINFOPERM0 OMAP2_L3_IO_ADDRESS(0x68005048) +#define OMAP24XX_VA_READPERM0 OMAP2_L3_IO_ADDRESS(0x68005050) +#define OMAP24XX_VA_WRITEPERM0 OMAP2_L3_IO_ADDRESS(0x68005058) + +#define OMAP34XX_VA_REQINFOPERM0 OMAP2_L3_IO_ADDRESS(0x68012848) +#define OMAP34XX_VA_READPERM0 OMAP2_L3_IO_ADDRESS(0x68012850) +#define OMAP34XX_VA_WRITEPERM0 OMAP2_L3_IO_ADDRESS(0x68012858) +#define OMAP34XX_VA_ADDR_MATCH2 OMAP2_L3_IO_ADDRESS(0x68012880) +#define OMAP34XX_VA_SMS_RG_ATT0 OMAP2_L3_IO_ADDRESS(0x6C000048) + +#define GP_DEVICE 0x300 + +#define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1))) + +static unsigned long omap_sram_start; +static unsigned long omap_sram_skip; +static unsigned long omap_sram_size; + +/* + * Depending on the target RAMFS firewall setup, the public usable amount of + * SRAM varies. The default accessible size for all device types is 2k. A GP + * device allows ARM11 but not other initiators for full size. This + * functionality seems ok until some nice security API happens. + */ +static int is_sram_locked(void) +{ + if (OMAP2_DEVICE_TYPE_GP == omap_type()) { + /* RAMFW: R/W access to all initiators for all qualifier sets */ + if (cpu_is_omap242x()) { + __raw_writel(0xFF, OMAP24XX_VA_REQINFOPERM0); /* all q-vects */ + __raw_writel(0xCFDE, OMAP24XX_VA_READPERM0); /* all i-read */ + __raw_writel(0xCFDE, OMAP24XX_VA_WRITEPERM0); /* all i-write */ + } + if (cpu_is_omap34xx()) { + __raw_writel(0xFFFF, OMAP34XX_VA_REQINFOPERM0); /* all q-vects */ + __raw_writel(0xFFFF, OMAP34XX_VA_READPERM0); /* all i-read */ + __raw_writel(0xFFFF, OMAP34XX_VA_WRITEPERM0); /* all i-write */ + __raw_writel(0x0, OMAP34XX_VA_ADDR_MATCH2); + __raw_writel(0xFFFFFFFF, OMAP34XX_VA_SMS_RG_ATT0); + } + return 0; + } else + return 1; /* assume locked with no PPA or security driver */ +} + +/* + * The amount of SRAM depends on the core type. + * Note that we cannot try to test for SRAM here because writes + * to secure SRAM will hang the system. Also the SRAM is not + * yet mapped at this point. + */ +static void __init omap_detect_sram(void) +{ + omap_sram_skip = SRAM_BOOTLOADER_SZ; + if (is_sram_locked()) { + if (cpu_is_omap34xx()) { + omap_sram_start = OMAP3_SRAM_PUB_PA; + if ((omap_type() == OMAP2_DEVICE_TYPE_EMU) || + (omap_type() == OMAP2_DEVICE_TYPE_SEC)) { + omap_sram_size = 0x7000; /* 28K */ + omap_sram_skip += SZ_16K; + } else { + omap_sram_size = 0x8000; /* 32K */ + } + } else if (cpu_is_omap44xx()) { + omap_sram_start = OMAP4_SRAM_PUB_PA; + omap_sram_size = 0xa000; /* 40K */ + } else if (soc_is_omap54xx()) { + omap_sram_start = OMAP5_SRAM_PA; + omap_sram_size = SZ_128K; /* 128KB */ + } else { + omap_sram_start = OMAP2_SRAM_PUB_PA; + omap_sram_size = 0x800; /* 2K */ + } + } else { + if (soc_is_am33xx()) { + omap_sram_start = AM33XX_SRAM_PA; + omap_sram_size = 0x10000; /* 64K */ + } else if (cpu_is_omap34xx()) { + omap_sram_start = OMAP3_SRAM_PA; + omap_sram_size = 0x10000; /* 64K */ + } else if (cpu_is_omap44xx()) { + omap_sram_start = OMAP4_SRAM_PA; + omap_sram_size = 0xe000; /* 56K */ + } else if (soc_is_omap54xx()) { + omap_sram_start = OMAP5_SRAM_PA; + omap_sram_size = SZ_128K; /* 128KB */ + } else { + omap_sram_start = OMAP2_SRAM_PA; + if (cpu_is_omap242x()) + omap_sram_size = 0xa0000; /* 640K */ + else if (cpu_is_omap243x()) + omap_sram_size = 0x10000; /* 64K */ + } + } +} + +/* + * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early. + */ +static void __init omap2_map_sram(void) +{ + int cached = 1; + +#ifdef CONFIG_OMAP4_ERRATA_I688 + if (cpu_is_omap44xx()) { + omap_sram_start += PAGE_SIZE; + omap_sram_size -= SZ_16K; + } +#endif + if (cpu_is_omap34xx()) { + /* + * SRAM must be marked as non-cached on OMAP3 since the + * CORE DPLL M2 divider change code (in SRAM) runs with the + * SDRAM controller disabled, and if it is marked cached, + * the ARM may attempt to write cache lines back to SDRAM + * which will cause the system to hang. + */ + cached = 0; + } + + omap_map_sram(omap_sram_start, omap_sram_size, + omap_sram_skip, cached); +} + +static void (*_omap2_sram_ddr_init)(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock); + +void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock) +{ + BUG_ON(!_omap2_sram_ddr_init); + _omap2_sram_ddr_init(slow_dll_ctrl, fast_dll_ctrl, + base_cs, force_unlock); +} + +static void (*_omap2_sram_reprogram_sdrc)(u32 perf_level, u32 dll_val, + u32 mem_type); + +void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type) +{ + BUG_ON(!_omap2_sram_reprogram_sdrc); + _omap2_sram_reprogram_sdrc(perf_level, dll_val, mem_type); +} + +static u32 (*_omap2_set_prcm)(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); + +u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass) +{ + BUG_ON(!_omap2_set_prcm); + return _omap2_set_prcm(dpll_ctrl_val, sdrc_rfr_val, bypass); +} + +#ifdef CONFIG_SOC_OMAP2420 +static int __init omap242x_sram_init(void) +{ + _omap2_sram_ddr_init = omap_sram_push(omap242x_sram_ddr_init, + omap242x_sram_ddr_init_sz); + + _omap2_sram_reprogram_sdrc = omap_sram_push(omap242x_sram_reprogram_sdrc, + omap242x_sram_reprogram_sdrc_sz); + + _omap2_set_prcm = omap_sram_push(omap242x_sram_set_prcm, + omap242x_sram_set_prcm_sz); + + return 0; +} +#else +static inline int omap242x_sram_init(void) +{ + return 0; +} +#endif + +#ifdef CONFIG_SOC_OMAP2430 +static int __init omap243x_sram_init(void) +{ + _omap2_sram_ddr_init = omap_sram_push(omap243x_sram_ddr_init, + omap243x_sram_ddr_init_sz); + + _omap2_sram_reprogram_sdrc = omap_sram_push(omap243x_sram_reprogram_sdrc, + omap243x_sram_reprogram_sdrc_sz); + + _omap2_set_prcm = omap_sram_push(omap243x_sram_set_prcm, + omap243x_sram_set_prcm_sz); + + return 0; +} +#else +static inline int omap243x_sram_init(void) +{ + return 0; +} +#endif + +#ifdef CONFIG_ARCH_OMAP3 + +static u32 (*_omap3_sram_configure_core_dpll)( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); + +u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1) +{ + BUG_ON(!_omap3_sram_configure_core_dpll); + return _omap3_sram_configure_core_dpll( + m2, unlock_dll, f, inc, + sdrc_rfr_ctrl_0, sdrc_actim_ctrl_a_0, + sdrc_actim_ctrl_b_0, sdrc_mr_0, + sdrc_rfr_ctrl_1, sdrc_actim_ctrl_a_1, + sdrc_actim_ctrl_b_1, sdrc_mr_1); +} + +void omap3_sram_restore_context(void) +{ + omap_sram_reset(); + + _omap3_sram_configure_core_dpll = + omap_sram_push(omap3_sram_configure_core_dpll, + omap3_sram_configure_core_dpll_sz); + omap_push_sram_idle(); +} + +static inline int omap34xx_sram_init(void) +{ + omap3_sram_restore_context(); + return 0; +} +#else +static inline int omap34xx_sram_init(void) +{ + return 0; +} +#endif /* CONFIG_ARCH_OMAP3 */ + +static inline int am33xx_sram_init(void) +{ + return 0; +} + +int __init omap_sram_init(void) +{ + omap_detect_sram(); + omap2_map_sram(); + + if (cpu_is_omap242x()) + omap242x_sram_init(); + else if (cpu_is_omap2430()) + omap243x_sram_init(); + else if (soc_is_am33xx()) + am33xx_sram_init(); + else if (cpu_is_omap34xx()) + omap34xx_sram_init(); + + return 0; +} diff --git a/arch/arm/mach-omap2/sram.h b/arch/arm/mach-omap2/sram.h new file mode 100644 index 0000000..ca7277c --- /dev/null +++ b/arch/arm/mach-omap2/sram.h @@ -0,0 +1,83 @@ +/* + * Interface for functions that need to be run in internal SRAM + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASSEMBLY__ +#include <plat/sram.h> + +extern void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock); +extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, + u32 mem_type); +extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); + +extern u32 omap3_configure_core_dpll( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); +extern void omap3_sram_restore_context(void); + +/* Do not use these */ +extern void omap24xx_sram_reprogram_clock(u32 ckctl, u32 dpllctl); +extern unsigned long omap24xx_sram_reprogram_clock_sz; + +extern void omap242x_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock); +extern unsigned long omap242x_sram_ddr_init_sz; + +extern u32 omap242x_sram_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, + int bypass); +extern unsigned long omap242x_sram_set_prcm_sz; + +extern void omap242x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, + u32 mem_type); +extern unsigned long omap242x_sram_reprogram_sdrc_sz; + + +extern void omap243x_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock); +extern unsigned long omap243x_sram_ddr_init_sz; + +extern u32 omap243x_sram_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, + int bypass); +extern unsigned long omap243x_sram_set_prcm_sz; + +extern void omap243x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, + u32 mem_type); +extern unsigned long omap243x_sram_reprogram_sdrc_sz; + +extern u32 omap3_sram_configure_core_dpll( + u32 m2, u32 unlock_dll, u32 f, u32 inc, + u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, + u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, + u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, + u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); +extern unsigned long omap3_sram_configure_core_dpll_sz; + +#ifdef CONFIG_PM +extern void omap_push_sram_idle(void); +#else +static inline void omap_push_sram_idle(void) {} +#endif /* CONFIG_PM */ + +#endif /* __ASSEMBLY__ */ + +/* + * OMAP2+: define the SRAM PA addresses. + * Used by the SRAM management code and the idle sleep code. + */ +#define OMAP2_SRAM_PA 0x40200000 +#define OMAP3_SRAM_PA 0x40200000 +#ifdef CONFIG_OMAP4_ERRATA_I688 +#define OMAP4_SRAM_PA 0x40304000 +#define OMAP4_SRAM_VA 0xfe404000 +#else +#define OMAP4_SRAM_PA 0x40300000 +#endif +#define AM33XX_SRAM_PA 0x40300000 diff --git a/arch/arm/mach-omap2/sram242x.S b/arch/arm/mach-omap2/sram242x.S index 8f7326c..680a7c5 100644 --- a/arch/arm/mach-omap2/sram242x.S +++ b/arch/arm/mach-omap2/sram242x.S @@ -34,8 +34,8 @@ #include "soc.h" #include "iomap.h" -#include "prm2xxx_3xxx.h" -#include "cm2xxx_3xxx.h" +#include "prm2xxx.h" +#include "cm2xxx.h" #include "sdrc.h" .text diff --git a/arch/arm/mach-omap2/sram243x.S b/arch/arm/mach-omap2/sram243x.S index b140d65..a1e9edd 100644 --- a/arch/arm/mach-omap2/sram243x.S +++ b/arch/arm/mach-omap2/sram243x.S @@ -34,8 +34,8 @@ #include "soc.h" #include "iomap.h" -#include "prm2xxx_3xxx.h" -#include "cm2xxx_3xxx.h" +#include "prm2xxx.h" +#include "cm2xxx.h" #include "sdrc.h" .text diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 2d0ceaa..1446331 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -32,7 +32,7 @@ #include "soc.h" #include "iomap.h" #include "sdrc.h" -#include "cm2xxx_3xxx.h" +#include "cm3xxx.h" /* * This file needs be built unconditionally as ARM to interoperate correctly diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index 69e4663..c5bc2cb 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -43,10 +43,11 @@ #include <asm/sched_clock.h> #include <asm/arch_timer.h> -#include <plat/omap_hwmod.h> -#include <plat/omap_device.h> +#include "omap_hwmod.h" +#include "omap_device.h" +#include <plat/counter-32k.h> #include <plat/dmtimer.h> -#include <plat/omap-pm.h> +#include "omap-pm.h" #include "soc.h" #include "common.h" @@ -559,6 +560,8 @@ static int __init omap_timer_init(struct omap_hwmod *oh, void *unused) if (timer_dev_attr) pdata->timer_capability = timer_dev_attr->timer_capability; + pdata->get_context_loss_count = omap_pm_get_dev_context_loss_count; + pdev = omap_device_build(name, id, oh, pdata, sizeof(*pdata), NULL, 0, 0); diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c index a256135..e49b40b 100644 --- a/arch/arm/mach-omap2/twl-common.c +++ b/arch/arm/mach-omap2/twl-common.c @@ -26,9 +26,6 @@ #include <linux/regulator/machine.h> #include <linux/regulator/fixed.h> -#include <plat/i2c.h> -#include <plat/usb.h> - #include "soc.h" #include "twl-common.h" #include "pm.h" diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c index 3c43449..d1dbe12 100644 --- a/arch/arm/mach-omap2/usb-host.c +++ b/arch/arm/mach-omap2/usb-host.c @@ -25,10 +25,10 @@ #include <asm/io.h> -#include <plat/usb.h> -#include <plat/omap_device.h> - +#include "soc.h" +#include "omap_device.h" #include "mux.h" +#include "usb.h" #ifdef CONFIG_MFD_OMAP_USB_HOST diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c index 51da21c..7b33b37 100644 --- a/arch/arm/mach-omap2/usb-musb.c +++ b/arch/arm/mach-omap2/usb-musb.c @@ -25,12 +25,10 @@ #include <linux/io.h> #include <linux/usb/musb.h> -#include <plat/usb.h> -#include <plat/omap_device.h> - -#include "am35xx.h" - +#include "omap_device.h" +#include "soc.h" #include "mux.h" +#include "usb.h" static struct musb_hdrc_config musb_config = { .multipoint = 1, diff --git a/arch/arm/mach-omap2/usb-tusb6010.c b/arch/arm/mach-omap2/usb-tusb6010.c index 805bea6..a8795ff 100644 --- a/arch/arm/mach-omap2/usb-tusb6010.c +++ b/arch/arm/mach-omap2/usb-tusb6010.c @@ -15,10 +15,11 @@ #include <linux/platform_device.h> #include <linux/gpio.h> #include <linux/export.h> +#include <linux/platform_data/usb-omap.h> #include <linux/usb/musb.h> -#include <plat/gpmc.h> +#include "gpmc.h" #include "mux.h" diff --git a/arch/arm/mach-omap2/usb.h b/arch/arm/mach-omap2/usb.h new file mode 100644 index 0000000..9b986ea --- /dev/null +++ b/arch/arm/mach-omap2/usb.h @@ -0,0 +1,82 @@ +#include <linux/platform_data/usb-omap.h> + +/* AM35x */ +/* USB 2.0 PHY Control */ +#define CONF2_PHY_GPIOMODE (1 << 23) +#define CONF2_OTGMODE (3 << 14) +#define CONF2_NO_OVERRIDE (0 << 14) +#define CONF2_FORCE_HOST (1 << 14) +#define CONF2_FORCE_DEVICE (2 << 14) +#define CONF2_FORCE_HOST_VBUS_LOW (3 << 14) +#define CONF2_SESENDEN (1 << 13) +#define CONF2_VBDTCTEN (1 << 12) +#define CONF2_REFFREQ_24MHZ (2 << 8) +#define CONF2_REFFREQ_26MHZ (7 << 8) +#define CONF2_REFFREQ_13MHZ (6 << 8) +#define CONF2_REFFREQ (0xf << 8) +#define CONF2_PHYCLKGD (1 << 7) +#define CONF2_VBUSSENSE (1 << 6) +#define CONF2_PHY_PLLON (1 << 5) +#define CONF2_RESET (1 << 4) +#define CONF2_PHYPWRDN (1 << 3) +#define CONF2_OTGPWRDN (1 << 2) +#define CONF2_DATPOL (1 << 1) + +/* TI81XX specific definitions */ +#define USBCTRL0 0x620 +#define USBSTAT0 0x624 + +/* TI816X PHY controls bits */ +#define TI816X_USBPHY0_NORMAL_MODE (1 << 0) +#define TI816X_USBPHY_REFCLK_OSC (1 << 8) + +/* TI814X PHY controls bits */ +#define USBPHY_CM_PWRDN (1 << 0) +#define USBPHY_OTG_PWRDN (1 << 1) +#define USBPHY_CHGDET_DIS (1 << 2) +#define USBPHY_CHGDET_RSTRT (1 << 3) +#define USBPHY_SRCONDM (1 << 4) +#define USBPHY_SINKONDP (1 << 5) +#define USBPHY_CHGISINK_EN (1 << 6) +#define USBPHY_CHGVSRC_EN (1 << 7) +#define USBPHY_DMPULLUP (1 << 8) +#define USBPHY_DPPULLUP (1 << 9) +#define USBPHY_CDET_EXTCTL (1 << 10) +#define USBPHY_GPIO_MODE (1 << 12) +#define USBPHY_DPOPBUFCTL (1 << 13) +#define USBPHY_DMOPBUFCTL (1 << 14) +#define USBPHY_DPINPUT (1 << 15) +#define USBPHY_DMINPUT (1 << 16) +#define USBPHY_DPGPIO_PD (1 << 17) +#define USBPHY_DMGPIO_PD (1 << 18) +#define USBPHY_OTGVDET_EN (1 << 19) +#define USBPHY_OTGSESSEND_EN (1 << 20) +#define USBPHY_DATA_POLARITY (1 << 23) + +struct usbhs_omap_board_data { + enum usbhs_omap_port_mode port_mode[OMAP3_HS_USB_PORTS]; + + /* have to be valid if phy_reset is true and portx is in phy mode */ + int reset_gpio_port[OMAP3_HS_USB_PORTS]; + + /* Set this to true for ES2.x silicon */ + unsigned es2_compatibility:1; + + unsigned phy_reset:1; + + /* + * Regulators for USB PHYs. + * Each PHY can have a separate regulator. + */ + struct regulator *regulator[OMAP3_HS_USB_PORTS]; +}; + +extern void usb_musb_init(struct omap_musb_board_data *board_data); +extern void usbhs_init(const struct usbhs_omap_board_data *pdata); + +extern void am35x_musb_reset(void); +extern void am35x_musb_phy_power(u8 on); +extern void am35x_musb_clear_irq(void); +extern void am35x_set_mode(u8 musb_mode); +extern void ti81xx_musb_phy_power(u8 on); + diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c index b2f1c67..f6b6c37 100644 --- a/arch/arm/mach-omap2/wd_timer.c +++ b/arch/arm/mach-omap2/wd_timer.c @@ -11,7 +11,7 @@ #include <linux/io.h> #include <linux/err.h> -#include <plat/omap_hwmod.h> +#include "omap_hwmod.h" #include "wd_timer.h" #include "common.h" diff --git a/arch/arm/mach-omap2/wd_timer.h b/arch/arm/mach-omap2/wd_timer.h index f6bbba7..a78f810 100644 --- a/arch/arm/mach-omap2/wd_timer.h +++ b/arch/arm/mach-omap2/wd_timer.h @@ -10,7 +10,7 @@ #ifndef __ARCH_ARM_MACH_OMAP2_WD_TIMER_H #define __ARCH_ARM_MACH_OMAP2_WD_TIMER_H -#include <plat/omap_hwmod.h> +#include "omap_hwmod.h" extern int omap2_wd_timer_disable(struct omap_hwmod *oh); extern int omap2_wd_timer_reset(struct omap_hwmod *oh); |