diff options
| author | Andreas Bießmann <andreas.devel@googlemail.com> | 2013-11-29 12:13:43 +0100 |
|---|---|---|
| committer | Andreas Bießmann <andreas.devel@googlemail.com> | 2013-12-09 13:21:26 +0100 |
| commit | 9ecc922e7500036e5b7acecf2c8c98510c183560 (patch) | |
| tree | c6e780e9ee9219fa83c057d56c9b6e270493e0da /arch | |
| parent | 47ed5dd031d7d2c587e6afd386e79ccec1a1b7f7 (diff) | |
at91: add new gpio pin definitions
This patch define new names for GPIO pins on at91 devices. Follow up patches
will convert the whole infrastructure to use these new definitions.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Tested-by: Bo Shen <voice.shen@atmel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/arch-at91/gpio.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch-at91/gpio.h b/arch/arm/include/asm/arch-at91/gpio.h index 0700427fa4..b340afef19 100644 --- a/arch/arm/include/asm/arch-at91/gpio.h +++ b/arch/arm/include/asm/arch-at91/gpio.h @@ -231,4 +231,26 @@ static inline unsigned pin_to_mask(unsigned pin) #define at91_set_gpio_value(x, y) at91_set_pio_value(x, y) #define at91_get_gpio_value(x) at91_get_pio_value(x) #endif -#endif + +#define GPIO_PIOA_BASE (0) +#define GPIO_PIOB_BASE (GPIO_PIOA_BASE + 32) +#define GPIO_PIOC_BASE (GPIO_PIOB_BASE + 32) +#define GPIO_PIOD_BASE (GPIO_PIOC_BASE + 32) +#define GPIO_PIOE_BASE (GPIO_PIOD_BASE + 32) +#define GPIO_PIN_PA(x) (GPIO_PIOA_BASE + (x)) +#define GPIO_PIN_PB(x) (GPIO_PIOB_BASE + (x)) +#define GPIO_PIN_PC(x) (GPIO_PIOC_BASE + (x)) +#define GPIO_PIN_PD(x) (GPIO_PIOD_BASE + (x)) +#define GPIO_PIN_PE(x) (GPIO_PIOE_BASE + (x)) + +static inline unsigned at91_gpio_to_port(unsigned gpio) +{ + return gpio / 32; +} + +static inline unsigned at91_gpio_to_pin(unsigned gpio) +{ + return gpio % 32; +} + +#endif /* __ASM_ARCH_AT91_GPIO_H */ |