diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/arch-tegra/gpio.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/arm/include/asm/arch-tegra/gpio.h b/arch/arm/include/asm/arch-tegra/gpio.h index 44cd455..7334e0c 100644 --- a/arch/arm/include/asm/arch-tegra/gpio.h +++ b/arch/arm/include/asm/arch-tegra/gpio.h @@ -6,6 +6,8 @@ #ifndef _TEGRA_GPIO_H_ #define _TEGRA_GPIO_H_ +#define TEGRA_GPIOS_PER_PORT 8 +#define TEGRA_PORTS_PER_BANK 4 #define MAX_NUM_GPIOS (TEGRA_GPIO_PORTS * TEGRA_GPIO_BANKS * 8) #define GPIO_NAME_SIZE 20 /* gpio_request max label len */ @@ -25,9 +27,14 @@ struct tegra_gpio_config { u32 init:2; }; -/* - * Tegra-specific GPIO API +/** + * tegra_spl_gpio_direction_output() - set the output value of a GPIO + * + * This function is only used from SPL on seaboard, which needs to enable a + * GPIO to get the UART running. It could be done in U-Boot rather than SPL, + * but for now, this gets it working */ +int tegra_spl_gpio_direction_output(int gpio, int value); /** * Configure a list of GPIOs @@ -37,8 +44,4 @@ struct tegra_gpio_config { */ void gpio_config_table(const struct tegra_gpio_config *config, int len); -void gpio_info(void); - -#define gpio_status() gpio_info() - #endif /* TEGRA_GPIO_H_ */ |