| /* |
| * Copyright (c) 2019, Linaro Limited |
| * Copyright (c) 2019, Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #ifndef RPI3_GPIO_H |
| #define RPI3_GPIO_H |
| |
| #include <stdint.h> |
| #include <drivers/gpio.h> |
| |
| struct rpi3_gpio_params { |
| uintptr_t reg_base; |
| }; |
| |
| void rpi3_gpio_init(struct rpi3_gpio_params *params); |
| int rpi3_gpio_get_select(int gpio); |
| void rpi3_gpio_set_select(int gpio, int fsel); |
| |
| #define RPI3_GPIO_GPFSEL(n) ((n) * U(0x04)) |
| #define RPI3_GPIO_GPSET(n) (((n) * U(0x04)) + U(0x1C)) |
| #define RPI3_GPIO_GPCLR(n) (((n) * U(0x04)) + U(0x28)) |
| #define RPI3_GPIO_GPLEV(n) (((n) * U(0x04)) + U(0x34)) |
| #define RPI3_GPIO_GPPUD U(0x94) |
| #define RPI3_GPIO_GPPUDCLK(n) (((n) * U(0x04)) + U(0x98)) |
| |
| #define RPI3_GPIO_FUNC_INPUT U(0) |
| #define RPI3_GPIO_FUNC_OUTPUT U(1) |
| #define RPI3_GPIO_FUNC_ALT0 U(4) |
| #define RPI3_GPIO_FUNC_ALT1 U(5) |
| #define RPI3_GPIO_FUNC_ALT2 U(6) |
| #define RPI3_GPIO_FUNC_ALT3 U(7) |
| #define RPI3_GPIO_FUNC_ALT4 U(3) |
| #define RPI3_GPIO_FUNC_ALT5 U(2) |
| |
| #endif /* RPI3_GPIO_H */ |
