blob: df758404ca2d11b88786b1feabb38a09938890c9 [file] [log] [blame]
/*
* Copyright 2021 NXP
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef PLAT_GPIO_H
#define PLAT_GPIO_H
#include <endian.h>
#include <lib/mmio.h>
/* GPIO Register offset */
#define GPIO_SEL_MASK 0x7F
#define GPIO_BIT_MASK 0x1F
#define GPDIR_REG_OFFSET 0x0
#define GPDAT_REG_OFFSET 0x8
#define GPIO_ID_BASE_ADDR_SHIFT 5U
#define GPIO_BITS_PER_BASE_REG 32U
#define GPIO_0 0
#define GPIO_1 1
#define GPIO_2 2
#define GPIO_3 3
#define GPIO_SUCCESS 0x0
#define GPIO_FAILURE 0x1
#ifdef NXP_GPIO_BE
#define gpio_read32(a) bswap32(mmio_read_32((uintptr_t)(a)))
#define gpio_write32(a, v) mmio_write_32((uintptr_t)(a), bswap32(v))
#elif defined(NXP_GPIO_LE)
#define gpio_read32(a) mmio_read_32((uintptr_t)(a))
#define gpio_write32(a, v) mmio_write_32((uintptr_t)(a), (v))
#else
#error Please define GPIO register endianness
#endif
typedef struct {
uintptr_t gpio1_base_addr;
uintptr_t gpio2_base_addr;
uintptr_t gpio3_base_addr;
uintptr_t gpio4_base_addr;
} gpio_init_info_t;
void gpio_init(gpio_init_info_t *gpio_init_data);
uint32_t *select_gpio_n_bitnum(uint32_t povdd_gpio, uint32_t *bit_num);
int clr_gpio_bit(uint32_t *gpio_base_addr, uint32_t bit_num);
int set_gpio_bit(uint32_t *gpio_base_addr, uint32_t bit_num);
#endif /* PLAT_GPIO_H */