diff options
| author | Minkyu Kang <mk7.kang@samsung.com> | 2010-02-12 18:17:52 +0900 |
|---|---|---|
| committer | trix <trix@windriver.com> | 2010-04-03 15:24:25 -0500 |
| commit | ab693e9c4c06b42d1746a0d7a03541968fb55bb9 (patch) | |
| tree | d027534ac2183e17d00bec5509fab5f62ab37708 /include | |
| parent | 7b92159bd9fc0acaddd65b314da252b715d1b44e (diff) | |
| download | u-boot-imx-ab693e9c4c06b42d1746a0d7a03541968fb55bb9.zip u-boot-imx-ab693e9c4c06b42d1746a0d7a03541968fb55bb9.tar.gz u-boot-imx-ab693e9c4c06b42d1746a0d7a03541968fb55bb9.tar.bz2 | |
s5pc1xx: support the GPIO interface
This patch adds support the GPIO interface
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-arm/arch-s5pc1xx/gpio.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/asm-arm/arch-s5pc1xx/gpio.h b/include/asm-arm/arch-s5pc1xx/gpio.h index afbc7ea..8e4bb86 100644 --- a/include/asm-arm/arch-s5pc1xx/gpio.h +++ b/include/asm-arm/arch-s5pc1xx/gpio.h @@ -124,6 +124,35 @@ struct s5pc110_gpio { struct s5pc1xx_gpio_bank gpio_h2; struct s5pc1xx_gpio_bank gpio_h3; }; + +/* functions */ +void gpio_cfg_pin(struct s5pc1xx_gpio_bank *bank, int gpio, int cfg); +void gpio_direction_output(struct s5pc1xx_gpio_bank *bank, int gpio, int en); +void gpio_direction_input(struct s5pc1xx_gpio_bank *bank, int gpio); +void gpio_set_value(struct s5pc1xx_gpio_bank *bank, int gpio, int en); +unsigned int gpio_get_value(struct s5pc1xx_gpio_bank *bank, int gpio); +void gpio_set_pull(struct s5pc1xx_gpio_bank *bank, int gpio, int mode); +void gpio_set_drv(struct s5pc1xx_gpio_bank *bank, int gpio, int mode); +void gpio_set_rate(struct s5pc1xx_gpio_bank *bank, int gpio, int mode); #endif +/* Pin configurations */ +#define GPIO_INPUT 0x0 +#define GPIO_OUTPUT 0x1 +#define GPIO_IRQ 0xf +#define GPIO_FUNC(x) (x) + +/* Pull mode */ +#define GPIO_PULL_NONE 0x0 +#define GPIO_PULL_DOWN 0x1 +#define GPIO_PULL_UP 0x2 + +/* Drive Strength level */ +#define GPIO_DRV_1X 0x0 +#define GPIO_DRV_2X 0x1 +#define GPIO_DRV_3X 0x2 +#define GPIO_DRV_4X 0x3 +#define GPIO_DRV_FAST 0x0 +#define GPIO_DRV_SLOW 0x1 + #endif |