Ian Campbell | b2765ec | 2014-05-05 11:52:24 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2007-2011 |
| 3 | * Allwinner Technology Co., Ltd. <www.allwinnertech.com> |
| 4 | * Tom Cubie <tangliang@allwinnertech.com> |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 7 | */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <asm/io.h> |
| 11 | #include <asm/arch/gpio.h> |
| 12 | |
| 13 | int sunxi_gpio_set_cfgpin(u32 pin, u32 val) |
| 14 | { |
| 15 | u32 bank = GPIO_BANK(pin); |
| 16 | u32 index = GPIO_CFG_INDEX(pin); |
| 17 | u32 offset = GPIO_CFG_OFFSET(pin); |
| 18 | struct sunxi_gpio *pio = BANK_TO_GPIO(bank); |
| 19 | |
| 20 | clrsetbits_le32(&pio->cfg[0] + index, 0xf << offset, val << offset); |
| 21 | |
| 22 | return 0; |
| 23 | } |
| 24 | |
| 25 | int sunxi_gpio_get_cfgpin(u32 pin) |
| 26 | { |
| 27 | u32 cfg; |
| 28 | u32 bank = GPIO_BANK(pin); |
| 29 | u32 index = GPIO_CFG_INDEX(pin); |
| 30 | u32 offset = GPIO_CFG_OFFSET(pin); |
| 31 | struct sunxi_gpio *pio = BANK_TO_GPIO(bank); |
| 32 | |
| 33 | cfg = readl(&pio->cfg[0] + index); |
| 34 | cfg >>= offset; |
| 35 | |
| 36 | return cfg & 0xf; |
| 37 | } |
| 38 | |
| 39 | int sunxi_gpio_set_drv(u32 pin, u32 val) |
| 40 | { |
| 41 | u32 bank = GPIO_BANK(pin); |
| 42 | u32 index = GPIO_DRV_INDEX(pin); |
| 43 | u32 offset = GPIO_DRV_OFFSET(pin); |
| 44 | struct sunxi_gpio *pio = BANK_TO_GPIO(bank); |
| 45 | |
| 46 | clrsetbits_le32(&pio->drv[0] + index, 0x3 << offset, val << offset); |
| 47 | |
| 48 | return 0; |
| 49 | } |
| 50 | |
| 51 | int sunxi_gpio_set_pull(u32 pin, u32 val) |
| 52 | { |
| 53 | u32 bank = GPIO_BANK(pin); |
| 54 | u32 index = GPIO_PULL_INDEX(pin); |
| 55 | u32 offset = GPIO_PULL_OFFSET(pin); |
| 56 | struct sunxi_gpio *pio = BANK_TO_GPIO(bank); |
| 57 | |
| 58 | clrsetbits_le32(&pio->pull[0] + index, 0x3 << offset, val << offset); |
| 59 | |
| 60 | return 0; |
| 61 | } |