diff options
author | Arnd Bergmann <arnd@arndb.de> | 2013-04-10 12:57:15 (GMT) |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2013-04-19 11:51:26 (GMT) |
commit | bd51de53e1be9896d815bbea30560262216d4616 (patch) | |
tree | bd9f221d20bcc28cd6f4bb80f869c3aa6b1e3721 | |
parent | b9d7c5d3f48fb9582458ce014baa66c1e16d9be6 (diff) | |
download | linux-bd51de53e1be9896d815bbea30560262216d4616.tar.xz |
ARM: exynos: enable multiplatform support
This makes it possible to enable the exynos platform as part of a
multiplatform kernel, in addition to keeping the single-platform
exynos support.
The multiplatform variant has a number of limitations at the moment:
* It only supports DT-enabled machines. This is not a problem in
the long run, as non-DT machines for exynos are going away.
The main problem here is that the gpio code and the exynos_eint
irqchip are not multiplatform capable but still required for
ATAGS based boot.
* The watchdog driver is still missing a conversion.
* sparsemem and memory_holes are currently not supported in
multiplatform.
The the multiplatform aware ARCH_EXYNOS Kconfig symbol is disabled
for now, as dependent patches are still pending in other
subsystem trees. We will enable it once everything comes together.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-rw-r--r-- | arch/arm/Kconfig | 9 | ||||
-rw-r--r-- | arch/arm/configs/exynos4_defconfig | 2 | ||||
-rw-r--r-- | arch/arm/mach-exynos/Kconfig | 25 | ||||
-rw-r--r-- | arch/arm/mach-exynos/Makefile | 5 | ||||
-rw-r--r-- | arch/arm/mach-exynos/common.c | 6 | ||||
-rw-r--r-- | arch/arm/plat-samsung/Kconfig | 7 | ||||
-rw-r--r-- | arch/arm/plat-samsung/Makefile | 8 | ||||
-rw-r--r-- | arch/arm/plat-samsung/include/plat/pm.h | 5 | ||||
-rw-r--r-- | drivers/gpio/Makefile | 2 |
9 files changed, 50 insertions, 19 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 13b7394..b375a94 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -853,18 +853,11 @@ config ARCH_S5PV210 help Samsung S5PV210/S5PC110 series based systems -config ARCH_EXYNOS +config ARCH_EXYNOS_SINGLE bool "Samsung EXYNOS" - select ARCH_HAS_CPUFREQ select ARCH_HAS_HOLES_MEMORYMODEL select ARCH_SPARSEMEM_ENABLE - select CLKDEV_LOOKUP - select CPU_V7 - select GENERIC_CLOCKEVENTS - select HAVE_CLK - select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG - select HAVE_S3C_RTC if RTC_CLASS select NEED_MACH_GPIO_H select NEED_MACH_MEMORY_H help diff --git a/arch/arm/configs/exynos4_defconfig b/arch/arm/configs/exynos4_defconfig index bffe68e..ae90a0f 100644 --- a/arch/arm/configs/exynos4_defconfig +++ b/arch/arm/configs/exynos4_defconfig @@ -4,7 +4,7 @@ CONFIG_KALLSYMS_ALL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set -CONFIG_ARCH_EXYNOS=y +CONFIG_ARCH_EXYNOS_SINGLE=y CONFIG_S3C_LOWLEVEL_UART_PORT=1 CONFIG_MACH_SMDKC210=y CONFIG_MACH_ARMLEX4210=y diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index d8c251b..1d69c62 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -7,6 +7,20 @@ # Configuration options for the EXYNOS4 +config ARCH_EXYNOS + # TODO: make this visible after all drivers are converted + bool "Samsung EXYNOS" if ARCH_MULTI_V7 && BROKEN + default ARCH_EXYNOS_SINGLE + select ARCH_HAS_CPUFREQ + select CLKDEV_LOOKUP + select CPU_V7 + select GENERIC_CLOCKEVENTS + select HAVE_CLK + select HAVE_S3C2410_I2C if I2C + select HAVE_S3C_RTC if RTC_CLASS + help + Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5) + if ARCH_EXYNOS menu "SAMSUNG EXYNOS SoCs Support" @@ -19,6 +33,9 @@ config ARCH_EXYNOS4 help Samsung EXYNOS4 SoCs based systems +config ARCH_EXYNOS4_SINGLE + def_bool ARCH_EXYNOS4 && ARCH_EXYNOS_SINGLE + config ARCH_EXYNOS5 bool "SAMSUNG EXYNOS5" select HAVE_SMP @@ -35,7 +52,7 @@ config CPU_EXYNOS4210 select PM_GENERIC_DOMAINS select S5P_PM if PM select S5P_SLEEP if PM - select SAMSUNG_DMADEV + select SAMSUNG_DMADEV if ARCH_EXYNOS_SINGLE help Enable EXYNOS4210 CPU support @@ -45,7 +62,7 @@ config SOC_EXYNOS4212 depends on ARCH_EXYNOS4 select S5P_PM if PM select S5P_SLEEP if PM - select SAMSUNG_DMADEV + select SAMSUNG_DMADEV if ARCH_EXYNOS_SINGLE help Enable EXYNOS4212 SoC support @@ -53,7 +70,7 @@ config SOC_EXYNOS4412 bool "SAMSUNG EXYNOS4412" default y depends on ARCH_EXYNOS4 - select SAMSUNG_DMADEV + select SAMSUNG_DMADEV if ARCH_EXYNOS_SINGLE help Enable EXYNOS4412 SoC support @@ -64,7 +81,7 @@ config SOC_EXYNOS5250 select S5P_PM if PM select S5P_SLEEP if PM select S5P_DEV_MFC - select SAMSUNG_DMADEV + select SAMSUNG_DMADEV if ARCH_EXYNOS_SINGLE help Enable EXYNOS5250 SoC support diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index 435757e..57e9124 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -4,6 +4,7 @@ # http://www.samsung.com/ # # Licensed under GPLv2 +ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include -I$(srctree)/arch/arm/plat-samsung/include obj-y := obj-m := @@ -48,12 +49,12 @@ obj-$(CONFIG_MACH_EXYNOS5_DT) += mach-exynos5-dt.o # device support obj-y += dev-uart.o -obj-$(CONFIG_ARCH_EXYNOS4) += dev-audio.o +obj-$(CONFIG_ARCH_EXYNOS4_SINGLE) += dev-audio.o obj-$(CONFIG_EXYNOS4_DEV_AHCI) += dev-ahci.o obj-$(CONFIG_EXYNOS_DEV_DMA) += dma.o obj-$(CONFIG_EXYNOS4_DEV_USB_OHCI) += dev-ohci.o -obj-$(CONFIG_ARCH_EXYNOS) += setup-i2c0.o +obj-$(CONFIG_ARCH_EXYNOS_SINGLE) += setup-i2c0.o obj-$(CONFIG_EXYNOS4_SETUP_FIMC) += setup-fimc.o obj-$(CONFIG_EXYNOS4_SETUP_FIMD0) += setup-fimd0.o obj-$(CONFIG_EXYNOS4_SETUP_I2C1) += setup-i2c1.o diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index d63d399..83bd3f0 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -368,6 +368,9 @@ static void __init exynos4_map_io(void) else iotable_init(exynos4_iodesc1, ARRAY_SIZE(exynos4_iodesc1)); + if (!IS_ENABLED(CONFIG_EXYNOS_ATAGS)) + return + /* initialize device information early */ exynos4_default_sdhci0(); exynos4_default_sdhci1(); @@ -570,6 +573,8 @@ static void __init exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no) s3c24xx_init_uartdevs("exynos4210-uart", exynos4_uart_resources, cfg, no); } + +#ifdef CONFIG_EXYNOS_ATAGS static void __iomem *exynos_eint_base; static DEFINE_SPINLOCK(eint_lock); @@ -875,3 +880,4 @@ static int __init exynos_init_irq_eint(void) return 0; } arch_initcall(exynos_init_irq_eint); +#endif diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index a9d52167..8aae681 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -13,6 +13,10 @@ config PLAT_SAMSUNG help Base platform code for all Samsung SoC based systems +config PLAT_SAMSUNG_SINGLE + def_bool PLAT_SAMSUNG && !ARCH_MULTIPLATFORM + + config PLAT_S5P bool depends on (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS) @@ -23,7 +27,7 @@ config PLAT_S5P select GIC_NON_BANKED if ARCH_EXYNOS4 select NO_IOPORT select PLAT_SAMSUNG - select S3C_GPIO_TRACK + select S3C_GPIO_TRACK if PLAT_SAMSUNG_SINGLE select S5P_GPIO_DRVSTR select SAMSUNG_CLKSRC select SAMSUNG_GPIOLIB_4BIT @@ -178,6 +182,7 @@ config S5P_DEV_UART config S3C_ADC bool "ADC common driver support" + depends on PLAT_SAMSUNG_SINGLE help Core support for the ADC block found in the Samsung SoC systems for drivers such as the touchscreen and hwmon to use to share diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 3a7c64d..cf684b2 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -4,6 +4,9 @@ # # Licensed under GPLv2 +ccflags-$(CONFIG_ARCH_MULTI_V7) += -I$(srctree)/$(src)/include +ccflags-$(CONFIG_ARCH_EXYNOS) += -I$(srctree)/arch/arm/mach-exynos/include + obj-y := obj-m := obj-n := dummy.o @@ -34,7 +37,7 @@ obj-$(CONFIG_S3C_ADC) += adc.o obj-y += platformdata.o -obj-y += devs.o +obj-$(CONFIG_PLAT_SAMSUNG_SINGLE) += devs.o obj-y += dev-uart.o obj-$(CONFIG_S5P_DEV_MFC) += s5p-dev-mfc.o obj-$(CONFIG_S5P_DEV_UART) += s5p-dev-uart.o @@ -51,9 +54,10 @@ obj-$(CONFIG_S3C_DMA) += dma.o s3c-dma-ops.o obj-$(CONFIG_SAMSUNG_DMADEV) += dma-ops.o # PM support - obj-$(CONFIG_PM) += pm.o +ifdef CONFIG_PLAT_SAMSUNG_SINGLE obj-$(CONFIG_PM) += pm-gpio.o +endif obj-$(CONFIG_SAMSUNG_PM_CHECK) += pm-check.o obj-$(CONFIG_SAMSUNG_WAKEMASK) += wakeup-mask.o diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h index f6fcade..266a4e3 100644 --- a/arch/arm/plat-samsung/include/plat/pm.h +++ b/arch/arm/plat-samsung/include/plat/pm.h @@ -166,6 +166,7 @@ extern void s3c_pm_check_store(void); */ extern void s3c_pm_configure_extint(void); +#ifdef CONFIG_PLAT_SAMSUNG_SINGLE /** * samsung_pm_restore_gpios() - restore the state of the gpios after sleep. * @@ -181,6 +182,10 @@ extern void samsung_pm_restore_gpios(void); * Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios(). */ extern void samsung_pm_save_gpios(void); +#else +#define samsung_pm_restore_gpios() do { } while(0) +#define samsung_pm_save_gpios() do { } while(0) +#endif extern void s3c_pm_save_core(void); extern void s3c_pm_restore_core(void); diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 22e07bc..6c16050 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -57,7 +57,7 @@ obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o obj-$(CONFIG_GPIO_RC5T583) += gpio-rc5t583.o obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o -obj-$(CONFIG_PLAT_SAMSUNG) += gpio-samsung.o +obj-$(CONFIG_PLAT_SAMSUNG_SINGLE) += gpio-samsung.o obj-$(CONFIG_ARCH_SA1100) += gpio-sa1100.o obj-$(CONFIG_GPIO_SCH) += gpio-sch.o obj-$(CONFIG_GPIO_SODAVILLE) += gpio-sodaville.o |