diff options
author | Rafael J. Wysocki <rjw@sisk.pl> | 2012-07-11 21:02:05 (GMT) |
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committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-07-11 21:02:05 (GMT) |
commit | b0a1e7532b69e07ab64db622d9d998af0a6e2f97 (patch) | |
tree | b13b7799d3ac6dd8cb63c9f7fc627a5c4e297e61 /arch/arm/mach-shmobile | |
parent | 992c91eeca5fc7249de6afbba49064640f620d4a (diff) | |
parent | 755d57b2229bd8cfa1d553c0b6878f2096f55ec3 (diff) | |
download | linux-b0a1e7532b69e07ab64db622d9d998af0a6e2f97.tar.xz |
Merge branch 'renesas-r8a7740' into renesas-soc
* renesas-r8a7740:
ARM: mach-shmobile: r8a7740 generic board support via DT
ARM: shmobile: r8a7740: add A4LC pm domain support
ARM: shmobile: r8a7740: add A3SP pm domain support
ARM: shmobile: r8a7740: add A4S pm domain support
ARM: shmobile: r8a7740: fixup: MSEL1CR 7bit control
ARM: shmobile: use common DMAEngine definitions on r8a7740
ARM: shmobile: r8a7740: add DMAEngine support for USB
ARM: shmobile: r8a7740: add DMAEngine support for SDHI
ARM: shmobile: r8a7740: add DMAEngine support for FSI
Diffstat (limited to 'arch/arm/mach-shmobile')
-rw-r--r-- | arch/arm/mach-shmobile/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/clock-r8a7740.c | 10 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/include/mach/r8a7740.h | 24 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/pfc-r8a7740.c | 4 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/pm-r8a7740.c | 54 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/setup-r8a7740.c | 342 |
6 files changed, 432 insertions, 3 deletions
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index 3ffe412..0df5ae6 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_SUSPEND) += suspend.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_ARCH_SHMOBILE) += pm-rmobile.o obj-$(CONFIG_ARCH_SH7372) += pm-sh7372.o sleep-sh7372.o +obj-$(CONFIG_ARCH_R8A7740) += pm-r8a7740.o obj-$(CONFIG_ARCH_R8A7779) += pm-r8a7779.o # Board objects diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c index 09b38d1..ad5fccc 100644 --- a/arch/arm/mach-shmobile/clock-r8a7740.c +++ b/arch/arm/mach-shmobile/clock-r8a7740.c @@ -463,6 +463,7 @@ enum { MSTP230, MSTP222, + MSTP218, MSTP217, MSTP216, MSTP214, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, MSTP329, MSTP328, MSTP323, MSTP320, @@ -485,6 +486,10 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP230] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 30, 0), /* SCIFA6 */ [MSTP222] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 22, 0), /* SCIFA7 */ + [MSTP218] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */ + [MSTP217] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */ + [MSTP216] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */ + [MSTP214] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 14, 0), /* USBDMAC */ [MSTP207] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */ [MSTP206] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */ [MSTP204] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */ @@ -563,7 +568,10 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]), CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), - + CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]), + CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]), + CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), + CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP222]), CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP230]), diff --git a/arch/arm/mach-shmobile/include/mach/r8a7740.h b/arch/arm/mach-shmobile/include/mach/r8a7740.h index 6468fcc..7143147 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7740.h +++ b/arch/arm/mach-shmobile/include/mach/r8a7740.h @@ -19,6 +19,8 @@ #ifndef __ASM_R8A7740_H__ #define __ASM_R8A7740_H__ +#include <mach/pm-rmobile.h> + /* * MD_CKx pin */ @@ -588,4 +590,26 @@ enum { GPIO_FN_TRACEAUD_FROM_MEMC, }; +/* DMA slave IDs */ +enum { + SHDMA_SLAVE_INVALID, + SHDMA_SLAVE_SDHI0_RX, + SHDMA_SLAVE_SDHI0_TX, + SHDMA_SLAVE_SDHI1_RX, + SHDMA_SLAVE_SDHI1_TX, + SHDMA_SLAVE_SDHI2_RX, + SHDMA_SLAVE_SDHI2_TX, + SHDMA_SLAVE_FSIA_RX, + SHDMA_SLAVE_FSIA_TX, + SHDMA_SLAVE_FSIB_TX, + SHDMA_SLAVE_USBHS_TX, + SHDMA_SLAVE_USBHS_RX, +}; + +#ifdef CONFIG_PM +extern struct rmobile_pm_domain r8a7740_pd_a4s; +extern struct rmobile_pm_domain r8a7740_pd_a3sp; +extern struct rmobile_pm_domain r8a7740_pd_a4lc; +#endif /* CONFIG_PM */ + #endif /* __ASM_R8A7740_H__ */ diff --git a/arch/arm/mach-shmobile/pfc-r8a7740.c b/arch/arm/mach-shmobile/pfc-r8a7740.c index 03def0f..ce9e7fa 100644 --- a/arch/arm/mach-shmobile/pfc-r8a7740.c +++ b/arch/arm/mach-shmobile/pfc-r8a7740.c @@ -1261,7 +1261,7 @@ static pinmux_enum_t pinmux_data[] = { PINMUX_DATA(A21_MARK, PORT120_FN1), PINMUX_DATA(MSIOF0_RSYNC_MARK, PORT120_FN2), PINMUX_DATA(MSIOF1_TSYNC_PORT120_MARK, PORT120_FN3, MSEL4CR_10_0), - PINMUX_DATA(IRQ7_PORT120_MARK, PORT120_FN0, MSEL1CR_7_0), + PINMUX_DATA(IRQ7_PORT120_MARK, PORT120_FN0, MSEL1CR_7_1), /* Port121 */ PINMUX_DATA(A20_MARK, PORT121_FN1), @@ -1623,7 +1623,7 @@ static pinmux_enum_t pinmux_data[] = { /* Port209 */ PINMUX_DATA(VBUS_MARK, PORT209_FN1), - PINMUX_DATA(IRQ7_PORT209_MARK, PORT209_FN0, MSEL1CR_7_1), + PINMUX_DATA(IRQ7_PORT209_MARK, PORT209_FN0, MSEL1CR_7_0), /* Port210 */ PINMUX_DATA(IRQ9_PORT210_MARK, PORT210_FN0, MSEL1CR_9_1), diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c new file mode 100644 index 0000000..893504d --- /dev/null +++ b/arch/arm/mach-shmobile/pm-r8a7740.c @@ -0,0 +1,54 @@ +/* + * r8a7740 power management support + * + * Copyright (C) 2012 Renesas Solutions Corp. + * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/console.h> +#include <mach/pm-rmobile.h> + +#ifdef CONFIG_PM +static int r8a7740_pd_a4s_suspend(void) +{ + /* + * The A4S domain contains the CPU core and therefore it should + * only be turned off if the CPU is in use. + */ + return -EBUSY; +} + +struct rmobile_pm_domain r8a7740_pd_a4s = { + .genpd.name = "A4S", + .bit_shift = 10, + .gov = &pm_domain_always_on_gov, + .no_debug = true, + .suspend = r8a7740_pd_a4s_suspend, +}; + +static int r8a7740_pd_a3sp_suspend(void) +{ + /* + * Serial consoles make use of SCIF hardware located in A3SP, + * keep such power domain on if "no_console_suspend" is set. + */ + return console_suspend_enabled ? 0 : -EBUSY; +} + +struct rmobile_pm_domain r8a7740_pd_a3sp = { + .genpd.name = "A3SP", + .bit_shift = 11, + .gov = &pm_domain_always_on_gov, + .no_debug = true, + .suspend = r8a7740_pd_a3sp_suspend, +}; + +struct rmobile_pm_domain r8a7740_pd_a4lc = { + .genpd.name = "A4LC", + .bit_shift = 1, +}; + +#endif /* CONFIG_PM */ diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c index 366311b..78948a9 100644 --- a/arch/arm/mach-shmobile/setup-r8a7740.c +++ b/arch/arm/mach-shmobile/setup-r8a7740.c @@ -23,9 +23,14 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/platform_device.h> +#include <linux/of_platform.h> #include <linux/serial_sci.h> +#include <linux/sh_dma.h> #include <linux/sh_timer.h> +#include <linux/dma-mapping.h> +#include <mach/dma-register.h> #include <mach/r8a7740.h> +#include <mach/pm-rmobile.h> #include <mach/common.h> #include <mach/irqs.h> #include <asm/mach-types.h> @@ -276,6 +281,272 @@ static struct platform_device *r8a7740_early_devices[] __initdata = { &cmt10_device, }; +/* DMA */ +static const struct sh_dmae_slave_config r8a7740_dmae_slaves[] = { + { + .slave_id = SHDMA_SLAVE_SDHI0_TX, + .addr = 0xe6850030, + .chcr = CHCR_TX(XMIT_SZ_16BIT), + .mid_rid = 0xc1, + }, { + .slave_id = SHDMA_SLAVE_SDHI0_RX, + .addr = 0xe6850030, + .chcr = CHCR_RX(XMIT_SZ_16BIT), + .mid_rid = 0xc2, + }, { + .slave_id = SHDMA_SLAVE_SDHI1_TX, + .addr = 0xe6860030, + .chcr = CHCR_TX(XMIT_SZ_16BIT), + .mid_rid = 0xc9, + }, { + .slave_id = SHDMA_SLAVE_SDHI1_RX, + .addr = 0xe6860030, + .chcr = CHCR_RX(XMIT_SZ_16BIT), + .mid_rid = 0xca, + }, { + .slave_id = SHDMA_SLAVE_SDHI2_TX, + .addr = 0xe6870030, + .chcr = CHCR_TX(XMIT_SZ_16BIT), + .mid_rid = 0xcd, + }, { + .slave_id = SHDMA_SLAVE_SDHI2_RX, + .addr = 0xe6870030, + .chcr = CHCR_RX(XMIT_SZ_16BIT), + .mid_rid = 0xce, + }, { + .slave_id = SHDMA_SLAVE_FSIA_TX, + .addr = 0xfe1f0024, + .chcr = CHCR_TX(XMIT_SZ_32BIT), + .mid_rid = 0xb1, + }, { + .slave_id = SHDMA_SLAVE_FSIA_RX, + .addr = 0xfe1f0020, + .chcr = CHCR_RX(XMIT_SZ_32BIT), + .mid_rid = 0xb2, + }, { + .slave_id = SHDMA_SLAVE_FSIB_TX, + .addr = 0xfe1f0064, + .chcr = CHCR_TX(XMIT_SZ_32BIT), + .mid_rid = 0xb5, + }, +}; + +#define DMA_CHANNEL(a, b, c) \ +{ \ + .offset = a, \ + .dmars = b, \ + .dmars_bit = c, \ + .chclr_offset = (0x220 - 0x20) + a \ +} + +static const struct sh_dmae_channel r8a7740_dmae_channels[] = { + DMA_CHANNEL(0x00, 0, 0), + DMA_CHANNEL(0x10, 0, 8), + DMA_CHANNEL(0x20, 4, 0), + DMA_CHANNEL(0x30, 4, 8), + DMA_CHANNEL(0x50, 8, 0), + DMA_CHANNEL(0x60, 8, 8), +}; + +static struct sh_dmae_pdata dma_platform_data = { + .slave = r8a7740_dmae_slaves, + .slave_num = ARRAY_SIZE(r8a7740_dmae_slaves), + .channel = r8a7740_dmae_channels, + .channel_num = ARRAY_SIZE(r8a7740_dmae_channels), + .ts_low_shift = TS_LOW_SHIFT, + .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT, + .ts_high_shift = TS_HI_SHIFT, + .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT, + .ts_shift = dma_ts_shift, + .ts_shift_num = ARRAY_SIZE(dma_ts_shift), + .dmaor_init = DMAOR_DME, + .chclr_present = 1, +}; + +/* Resource order important! */ +static struct resource r8a7740_dmae0_resources[] = { + { + /* Channel registers and DMAOR */ + .start = 0xfe008020, + .end = 0xfe00828f, + .flags = IORESOURCE_MEM, + }, + { + /* DMARSx */ + .start = 0xfe009000, + .end = 0xfe00900b, + .flags = IORESOURCE_MEM, + }, + { + .name = "error_irq", + .start = evt2irq(0x20c0), + .end = evt2irq(0x20c0), + .flags = IORESOURCE_IRQ, + }, + { + /* IRQ for channels 0-5 */ + .start = evt2irq(0x2000), + .end = evt2irq(0x20a0), + .flags = IORESOURCE_IRQ, + }, +}; + +/* Resource order important! */ +static struct resource r8a7740_dmae1_resources[] = { + { + /* Channel registers and DMAOR */ + .start = 0xfe018020, + .end = 0xfe01828f, + .flags = IORESOURCE_MEM, + }, + { + /* DMARSx */ + .start = 0xfe019000, + .end = 0xfe01900b, + .flags = IORESOURCE_MEM, + }, + { + .name = "error_irq", + .start = evt2irq(0x21c0), + .end = evt2irq(0x21c0), + .flags = IORESOURCE_IRQ, + }, + { + /* IRQ for channels 0-5 */ + .start = evt2irq(0x2100), + .end = evt2irq(0x21a0), + .flags = IORESOURCE_IRQ, + }, +}; + +/* Resource order important! */ +static struct resource r8a7740_dmae2_resources[] = { + { + /* Channel registers and DMAOR */ + .start = 0xfe028020, + .end = 0xfe02828f, + .flags = IORESOURCE_MEM, + }, + { + /* DMARSx */ + .start = 0xfe029000, + .end = 0xfe02900b, + .flags = IORESOURCE_MEM, + }, + { + .name = "error_irq", + .start = evt2irq(0x22c0), + .end = evt2irq(0x22c0), + .flags = IORESOURCE_IRQ, + }, + { + /* IRQ for channels 0-5 */ + .start = evt2irq(0x2200), + .end = evt2irq(0x22a0), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device dma0_device = { + .name = "sh-dma-engine", + .id = 0, + .resource = r8a7740_dmae0_resources, + .num_resources = ARRAY_SIZE(r8a7740_dmae0_resources), + .dev = { + .platform_data = &dma_platform_data, + }, +}; + +static struct platform_device dma1_device = { + .name = "sh-dma-engine", + .id = 1, + .resource = r8a7740_dmae1_resources, + .num_resources = ARRAY_SIZE(r8a7740_dmae1_resources), + .dev = { + .platform_data = &dma_platform_data, + }, +}; + +static struct platform_device dma2_device = { + .name = "sh-dma-engine", + .id = 2, + .resource = r8a7740_dmae2_resources, + .num_resources = ARRAY_SIZE(r8a7740_dmae2_resources), + .dev = { + .platform_data = &dma_platform_data, + }, +}; + +/* USB-DMAC */ +static const struct sh_dmae_channel r8a7740_usb_dma_channels[] = { + { + .offset = 0, + }, { + .offset = 0x20, + }, +}; + +static const struct sh_dmae_slave_config r8a7740_usb_dma_slaves[] = { + { + .slave_id = SHDMA_SLAVE_USBHS_TX, + .chcr = USBTS_INDEX2VAL(USBTS_XMIT_SZ_8BYTE), + }, { + .slave_id = SHDMA_SLAVE_USBHS_RX, + .chcr = USBTS_INDEX2VAL(USBTS_XMIT_SZ_8BYTE), + }, +}; + +static struct sh_dmae_pdata usb_dma_platform_data = { + .slave = r8a7740_usb_dma_slaves, + .slave_num = ARRAY_SIZE(r8a7740_usb_dma_slaves), + .channel = r8a7740_usb_dma_channels, + .channel_num = ARRAY_SIZE(r8a7740_usb_dma_channels), + .ts_low_shift = USBTS_LOW_SHIFT, + .ts_low_mask = USBTS_LOW_BIT << USBTS_LOW_SHIFT, + .ts_high_shift = USBTS_HI_SHIFT, + .ts_high_mask = USBTS_HI_BIT << USBTS_HI_SHIFT, + .ts_shift = dma_usbts_shift, + .ts_shift_num = ARRAY_SIZE(dma_usbts_shift), + .dmaor_init = DMAOR_DME, + .chcr_offset = 0x14, + .chcr_ie_bit = 1 << 5, + .dmaor_is_32bit = 1, + .needs_tend_set = 1, + .no_dmars = 1, + .slave_only = 1, +}; + +static struct resource r8a7740_usb_dma_resources[] = { + { + /* Channel registers and DMAOR */ + .start = 0xe68a0020, + .end = 0xe68a0064 - 1, + .flags = IORESOURCE_MEM, + }, + { + /* VCR/SWR/DMICR */ + .start = 0xe68a0000, + .end = 0xe68a0014 - 1, + .flags = IORESOURCE_MEM, + }, + { + /* IRQ for channels */ + .start = evt2irq(0x0a00), + .end = evt2irq(0x0a00), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device usb_dma_device = { + .name = "sh-dma-engine", + .id = 3, + .resource = r8a7740_usb_dma_resources, + .num_resources = ARRAY_SIZE(r8a7740_usb_dma_resources), + .dev = { + .platform_data = &usb_dma_platform_data, + }, +}; + /* I2C */ static struct resource i2c0_resources[] = { [0] = { @@ -322,6 +593,10 @@ static struct platform_device i2c1_device = { static struct platform_device *r8a7740_late_devices[] __initdata = { &i2c0_device, &i2c1_device, + &dma0_device, + &dma1_device, + &dma2_device, + &usb_dma_device, }; /* @@ -398,10 +673,31 @@ void __init r8a7740_add_standard_devices(void) r8a7740_i2c_workaround(&i2c0_device); r8a7740_i2c_workaround(&i2c1_device); + /* PM domain */ + rmobile_init_pm_domain(&r8a7740_pd_a4s); + rmobile_init_pm_domain(&r8a7740_pd_a3sp); + rmobile_init_pm_domain(&r8a7740_pd_a4lc); + + rmobile_pm_add_subdomain(&r8a7740_pd_a4s, &r8a7740_pd_a3sp); + + /* add devices */ platform_add_devices(r8a7740_early_devices, ARRAY_SIZE(r8a7740_early_devices)); platform_add_devices(r8a7740_late_devices, ARRAY_SIZE(r8a7740_late_devices)); + + /* add devices to PM domain */ + + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif0_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif1_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif2_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif3_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif4_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif5_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif6_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif7_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scifb_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &i2c1_device); } static void __init r8a7740_earlytimer_init(void) @@ -421,3 +717,49 @@ void __init r8a7740_add_early_devices(void) /* override timer setup with soc-specific code */ shmobile_timer.init = r8a7740_earlytimer_init; } + +#ifdef CONFIG_USE_OF + +void __init r8a7740_add_early_devices_dt(void) +{ + shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */ + + early_platform_add_devices(r8a7740_early_devices, + ARRAY_SIZE(r8a7740_early_devices)); + + /* setup early console here as well */ + shmobile_setup_console(); +} + +static const struct of_dev_auxdata r8a7740_auxdata_lookup[] __initconst = { + { } +}; + +void __init r8a7740_add_standard_devices_dt(void) +{ + /* clocks are setup late during boot in the case of DT */ + r8a7740_clock_init(0); + + platform_add_devices(r8a7740_early_devices, + ARRAY_SIZE(r8a7740_early_devices)); + + of_platform_populate(NULL, of_default_bus_match_table, + r8a7740_auxdata_lookup, NULL); +} + +static const char *r8a7740_boards_compat_dt[] __initdata = { + "renesas,r8a7740", + NULL, +}; + +DT_MACHINE_START(SH7372_DT, "Generic R8A7740 (Flattened Device Tree)") + .map_io = r8a7740_map_io, + .init_early = r8a7740_add_early_devices_dt, + .init_irq = r8a7740_init_irq, + .handle_irq = shmobile_handle_irq_intc, + .init_machine = r8a7740_add_standard_devices_dt, + .timer = &shmobile_timer, + .dt_compat = r8a7740_boards_compat_dt, +MACHINE_END + +#endif /* CONFIG_USE_OF */ |