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[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>
This commit is contained in:
Ben Dooks 2008-11-10 10:59:32 +00:00
parent 8783b3446b
commit e2178d4374
3 changed files with 29 additions and 0 deletions
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6
arch/arm/mach-s3c2410/include/mach/gpio.h
View File

@ -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>

2
arch/arm/mach-s3c2440/Kconfig
View File

@ -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.

21
arch/arm/plat-s3c24xx/Kconfig
View File

@ -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