diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2008-11-10 10:59:32 +0000 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2008-12-18 14:43:07 +0000 |
| commit | e2178d437460dafaaae89926088523432eb4de53 (patch) | |
| tree | fe14348512ccfa934eead187f315c2bde8d72f48 /arch | |
| parent | 8783b3446ba33a1cdd43f7eaa4ad6a1b73502a1a (diff) | |
[ARM] S3C24XX: Add extra GPIOs via Kconfig
Add Kconfig entries to allow more GPIO space to
be specified depending on the machine(s) selected.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-s3c2410/include/mach/gpio.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2440/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/Kconfig | 21 |
3 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/include/mach/gpio.h b/arch/arm/mach-s3c2410/include/mach/gpio.h index 3b52b86498a..e0349af8a48 100644 --- a/arch/arm/mach-s3c2410/include/mach/gpio.h +++ b/arch/arm/mach-s3c2410/include/mach/gpio.h @@ -15,4 +15,10 @@ #define gpio_set_value __gpio_set_value #define gpio_cansleep __gpio_cansleep +/* some boards require extra gpio capacity to support external + * devices that need GPIO. + */ + +#define ARCH_NR_GPIOS (256 + CONFIG_S3C24XX_GPIO_EXTRA) + #include <asm-generic/gpio.h> diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig index 0429d255b0d..402213dc5d8 100644 --- a/arch/arm/mach-s3c2440/Kconfig +++ b/arch/arm/mach-s3c2440/Kconfig @@ -31,6 +31,7 @@ config MACH_ANUBIS select CPU_S3C2440 select PM_SIMTEC if PM select HAVE_PATA_PLATFORM + select S3C24XX_GPIO_EXTRA64 help Say Y here if you are using the Simtec Electronics ANUBIS development system @@ -39,6 +40,7 @@ config MACH_OSIRIS bool "Simtec IM2440D20 (OSIRIS) module" select CPU_S3C2440 select PM_SIMTEC if PM + select S3C24XX_GPIO_EXTRA128 help Say Y here if you are using the Simtec IM2440D20 module, also known as the Osiris. diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig index 0af3872fb76..7fe28aaa08c 100644 --- a/arch/arm/plat-s3c24xx/Kconfig +++ b/arch/arm/plat-s3c24xx/Kconfig @@ -28,6 +28,27 @@ config S3C24XX_PWM Support for exporting the PWM timer blocks via the pwm device system. + +# gpio configurations + +config S3C24XX_GPIO_EXTRA + int + default 128 if S3C24XX_GPIO_EXTRA128 + default 64 if S3C24XX_GPIO_EXTRA64 + default 0 + +config S3C24XX_GPIO_EXTRA64 + bool + help + Add an extra 64 gpio numbers to the available GPIO pool. This is + available for boards that need extra gpios for external devices. + +config S3C24XX_GPIO_EXTRA128 + bool + help + Add an extra 128 gpio numbers to the available GPIO pool. This is + available for boards that need extra gpios for external devices. + config PM_SIMTEC bool help |