| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * (C) Copyright 2007-2011 |
| * Allwinner Technology Co., Ltd. <www.allwinnertech.com> |
| * Tom Cubie <tangliang@allwinnertech.com> |
| */ |
| |
| #include <common.h> |
| #include <asm/io.h> |
| #include <asm/arch/gpio.h> |
| |
| void sunxi_gpio_set_cfgbank(struct sunxi_gpio *pio, int bank_offset, u32 val) |
| { |
| u32 index = GPIO_CFG_INDEX(bank_offset); |
| u32 offset = GPIO_CFG_OFFSET(bank_offset); |
| |
| clrsetbits_le32(&pio->cfg[0] + index, 0xf << offset, val << offset); |
| } |
| |
| void sunxi_gpio_set_cfgpin(u32 pin, u32 val) |
| { |
| u32 bank = GPIO_BANK(pin); |
| struct sunxi_gpio *pio = BANK_TO_GPIO(bank); |
| |
| sunxi_gpio_set_cfgbank(pio, pin, val); |
| } |
| |
| int sunxi_gpio_get_cfgbank(struct sunxi_gpio *pio, int bank_offset) |
| { |
| u32 index = GPIO_CFG_INDEX(bank_offset); |
| u32 offset = GPIO_CFG_OFFSET(bank_offset); |
| u32 cfg; |
| |
| cfg = readl(&pio->cfg[0] + index); |
| cfg >>= offset; |
| |
| return cfg & 0xf; |
| } |
| |
| int sunxi_gpio_get_cfgpin(u32 pin) |
| { |
| u32 bank = GPIO_BANK(pin); |
| struct sunxi_gpio *pio = BANK_TO_GPIO(bank); |
| |
| return sunxi_gpio_get_cfgbank(pio, pin); |
| } |
| |
| int sunxi_gpio_set_drv(u32 pin, u32 val) |
| { |
| u32 bank = GPIO_BANK(pin); |
| u32 index = GPIO_DRV_INDEX(pin); |
| u32 offset = GPIO_DRV_OFFSET(pin); |
| struct sunxi_gpio *pio = BANK_TO_GPIO(bank); |
| |
| clrsetbits_le32(&pio->drv[0] + index, 0x3 << offset, val << offset); |
| |
| return 0; |
| } |
| |
| int sunxi_gpio_set_pull(u32 pin, u32 val) |
| { |
| u32 bank = GPIO_BANK(pin); |
| u32 index = GPIO_PULL_INDEX(pin); |
| u32 offset = GPIO_PULL_OFFSET(pin); |
| struct sunxi_gpio *pio = BANK_TO_GPIO(bank); |
| |
| clrsetbits_le32(&pio->pull[0] + index, 0x3 << offset, val << offset); |
| |
| return 0; |
| } |