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| 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 | |
| parent | 47ed5dd031d7d2c587e6afd386e79ccec1a1b7f7 (diff) | |
| download | u-boot-9ecc922e7500036e5b7acecf2c8c98510c183560.zip u-boot-9ecc922e7500036e5b7acecf2c8c98510c183560.tar.gz u-boot-9ecc922e7500036e5b7acecf2c8c98510c183560.tar.bz2 | |
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>
| -rw-r--r-- | arch/arm/include/asm/arch-at91/gpio.h | 24 | ||||
| -rw-r--r-- | drivers/gpio/at91_gpio.c | 4 |
2 files changed, 24 insertions, 4 deletions
diff --git a/arch/arm/include/asm/arch-at91/gpio.h b/arch/arm/include/asm/arch-at91/gpio.h index 0700427..b340afe 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 */ diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c index af09786..8b76666 100644 --- a/drivers/gpio/at91_gpio.c +++ b/drivers/gpio/at91_gpio.c @@ -14,6 +14,7 @@ #include <asm/sizes.h> #include <asm/arch/hardware.h> #include <asm/arch/at91_pio.h> +#include <asm/arch/gpio.h> static struct at91_port *at91_pio_get_port(unsigned port) { @@ -356,9 +357,6 @@ int at91_get_pio_value(unsigned port, unsigned pin) /* Common GPIO API */ -#define at91_gpio_to_port(gpio) (gpio / 32) -#define at91_gpio_to_pin(gpio) (gpio % 32) - int gpio_request(unsigned gpio, const char *label) { return 0; |