diff options
| -rw-r--r-- | arch/arm/mach-s3c2410/gpio.c | 22 | ||||
| -rw-r--r-- | include/asm-arm/arch-s3c2410/regs-gpio.h | 6 |
2 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/gpio.c b/arch/arm/mach-s3c2410/gpio.c index 94f1776cf31..23ea3d5fa09 100644 --- a/arch/arm/mach-s3c2410/gpio.c +++ b/arch/arm/mach-s3c2410/gpio.c @@ -30,6 +30,7 @@ * 04-Oct-2004 BJD Added irq filter controls for GPIO * 05-Nov-2004 BJD EXPORT_SYMBOL() added for all code * 13-Mar-2005 BJD Updates for __iomem + * 26-Oct-2005 BJD Added generic configuration types */ @@ -58,6 +59,27 @@ void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function) mask = 3 << S3C2410_GPIO_OFFSET(pin)*2; } + switch (function) { + case S3C2410_GPIO_LEAVE: + mask = 0; + function = 0; + break; + + case S3C2410_GPIO_INPUT: + case S3C2410_GPIO_OUTPUT: + case S3C2410_GPIO_SFN2: + case S3C2410_GPIO_SFN3: + if (pin < S3C2410_GPIO_BANKB) { + function &= 1; + function <<= S3C2410_GPIO_OFFSET(pin); + } else { + function &= 3; + function <<= S3C2410_GPIO_OFFSET(pin)*2; + } + } + + /* modify the specified register wwith IRQs off */ + local_irq_save(flags); con = __raw_readl(base + 0x00); diff --git a/include/asm-arm/arch-s3c2410/regs-gpio.h b/include/asm-arm/arch-s3c2410/regs-gpio.h index 2053cbacffc..cb33d57c146 100644 --- a/include/asm-arm/arch-s3c2410/regs-gpio.h +++ b/include/asm-arm/arch-s3c2410/regs-gpio.h @@ -20,6 +20,7 @@ * 18-11-2004 BJD Added S3C2440 AC97 controls * 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA * 28-Mar-2005 LCVR Fixed definition of GPB10 + * 26-Oct-2005 BJD Added generic configuration types */ @@ -43,6 +44,11 @@ /* general configuration options */ #define S3C2410_GPIO_LEAVE (0xFFFFFFFF) +#define S3C2410_GPIO_INPUT (0xFFFFFFF0) +#define S3C2410_GPIO_OUTPUT (0xFFFFFFF1) +#define S3C2410_GPIO_IRQ (0xFFFFFFF2) /* not available for all */ +#define S3C2410_GPIO_SFN2 (0xFFFFFFF2) /* not available on A */ +#define S3C2410_GPIO_SFN3 (0xFFFFFFF3) /* not available on A */ /* configure GPIO ports A..G */ |