David Wu | 5f596ae | 2019-01-02 21:00:55 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * (C) Copyright 2019 Rockchip Electronics Co., Ltd |
| 4 | */ |
| 5 | |
| 6 | #include <common.h> |
| 7 | #include <dm.h> |
| 8 | #include <dm/pinctrl.h> |
| 9 | #include <regmap.h> |
| 10 | #include <syscon.h> |
| 11 | |
| 12 | #include "pinctrl-rockchip.h" |
| 13 | |
| 14 | static struct rockchip_mux_route_data rk3228_mux_route_data[] = { |
| 15 | { |
| 16 | /* pwm0-0 */ |
| 17 | .bank_num = 0, |
| 18 | .pin = 26, |
| 19 | .func = 1, |
| 20 | .route_offset = 0x50, |
| 21 | .route_val = BIT(16), |
| 22 | }, { |
| 23 | /* pwm0-1 */ |
| 24 | .bank_num = 3, |
| 25 | .pin = 21, |
| 26 | .func = 1, |
| 27 | .route_offset = 0x50, |
| 28 | .route_val = BIT(16) | BIT(0), |
| 29 | }, { |
| 30 | /* pwm1-0 */ |
| 31 | .bank_num = 0, |
| 32 | .pin = 27, |
| 33 | .func = 1, |
| 34 | .route_offset = 0x50, |
| 35 | .route_val = BIT(16 + 1), |
| 36 | }, { |
| 37 | /* pwm1-1 */ |
| 38 | .bank_num = 0, |
| 39 | .pin = 30, |
| 40 | .func = 2, |
| 41 | .route_offset = 0x50, |
| 42 | .route_val = BIT(16 + 1) | BIT(1), |
| 43 | }, { |
| 44 | /* pwm2-0 */ |
| 45 | .bank_num = 0, |
| 46 | .pin = 28, |
| 47 | .func = 1, |
| 48 | .route_offset = 0x50, |
| 49 | .route_val = BIT(16 + 2), |
| 50 | }, { |
| 51 | /* pwm2-1 */ |
| 52 | .bank_num = 1, |
| 53 | .pin = 12, |
| 54 | .func = 2, |
| 55 | .route_offset = 0x50, |
| 56 | .route_val = BIT(16 + 2) | BIT(2), |
| 57 | }, { |
| 58 | /* pwm3-0 */ |
| 59 | .bank_num = 3, |
| 60 | .pin = 26, |
| 61 | .func = 1, |
| 62 | .route_offset = 0x50, |
| 63 | .route_val = BIT(16 + 3), |
| 64 | }, { |
| 65 | /* pwm3-1 */ |
| 66 | .bank_num = 1, |
| 67 | .pin = 11, |
| 68 | .func = 2, |
| 69 | .route_offset = 0x50, |
| 70 | .route_val = BIT(16 + 3) | BIT(3), |
| 71 | }, { |
| 72 | /* sdio-0_d0 */ |
| 73 | .bank_num = 1, |
| 74 | .pin = 1, |
| 75 | .func = 1, |
| 76 | .route_offset = 0x50, |
| 77 | .route_val = BIT(16 + 4), |
| 78 | }, { |
| 79 | /* sdio-1_d0 */ |
| 80 | .bank_num = 3, |
| 81 | .pin = 2, |
| 82 | .func = 1, |
| 83 | .route_offset = 0x50, |
| 84 | .route_val = BIT(16 + 4) | BIT(4), |
| 85 | }, { |
| 86 | /* spi-0_rx */ |
| 87 | .bank_num = 0, |
| 88 | .pin = 13, |
| 89 | .func = 2, |
| 90 | .route_offset = 0x50, |
| 91 | .route_val = BIT(16 + 5), |
| 92 | }, { |
| 93 | /* spi-1_rx */ |
| 94 | .bank_num = 2, |
| 95 | .pin = 0, |
| 96 | .func = 2, |
| 97 | .route_offset = 0x50, |
| 98 | .route_val = BIT(16 + 5) | BIT(5), |
| 99 | }, { |
| 100 | /* emmc-0_cmd */ |
| 101 | .bank_num = 1, |
| 102 | .pin = 22, |
| 103 | .func = 2, |
| 104 | .route_offset = 0x50, |
| 105 | .route_val = BIT(16 + 7), |
| 106 | }, { |
| 107 | /* emmc-1_cmd */ |
| 108 | .bank_num = 2, |
| 109 | .pin = 4, |
| 110 | .func = 2, |
| 111 | .route_offset = 0x50, |
| 112 | .route_val = BIT(16 + 7) | BIT(7), |
| 113 | }, { |
| 114 | /* uart2-0_rx */ |
| 115 | .bank_num = 1, |
| 116 | .pin = 19, |
| 117 | .func = 2, |
| 118 | .route_offset = 0x50, |
| 119 | .route_val = BIT(16 + 8), |
| 120 | }, { |
| 121 | /* uart2-1_rx */ |
| 122 | .bank_num = 1, |
| 123 | .pin = 10, |
| 124 | .func = 2, |
| 125 | .route_offset = 0x50, |
| 126 | .route_val = BIT(16 + 8) | BIT(8), |
| 127 | }, { |
| 128 | /* uart1-0_rx */ |
| 129 | .bank_num = 1, |
| 130 | .pin = 10, |
| 131 | .func = 1, |
| 132 | .route_offset = 0x50, |
| 133 | .route_val = BIT(16 + 11), |
| 134 | }, { |
| 135 | /* uart1-1_rx */ |
| 136 | .bank_num = 3, |
| 137 | .pin = 13, |
| 138 | .func = 1, |
| 139 | .route_offset = 0x50, |
| 140 | .route_val = BIT(16 + 11) | BIT(11), |
| 141 | }, |
| 142 | }; |
| 143 | |
| 144 | #define RK3228_PULL_OFFSET 0x100 |
| 145 | |
| 146 | static void rk3228_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, |
| 147 | int pin_num, struct regmap **regmap, |
| 148 | int *reg, u8 *bit) |
| 149 | { |
| 150 | struct rockchip_pinctrl_priv *priv = bank->priv; |
| 151 | |
| 152 | *regmap = priv->regmap_base; |
| 153 | *reg = RK3228_PULL_OFFSET; |
| 154 | *reg += bank->bank_num * ROCKCHIP_PULL_BANK_STRIDE; |
| 155 | *reg += ((pin_num / ROCKCHIP_PULL_PINS_PER_REG) * 4); |
| 156 | |
| 157 | *bit = (pin_num % ROCKCHIP_PULL_PINS_PER_REG); |
| 158 | *bit *= ROCKCHIP_PULL_BITS_PER_PIN; |
| 159 | } |
| 160 | |
| 161 | #define RK3228_DRV_GRF_OFFSET 0x200 |
| 162 | |
| 163 | static void rk3228_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, |
| 164 | int pin_num, struct regmap **regmap, |
| 165 | int *reg, u8 *bit) |
| 166 | { |
| 167 | struct rockchip_pinctrl_priv *priv = bank->priv; |
| 168 | |
| 169 | *regmap = priv->regmap_base; |
| 170 | *reg = RK3228_DRV_GRF_OFFSET; |
| 171 | *reg += bank->bank_num * ROCKCHIP_DRV_BANK_STRIDE; |
| 172 | *reg += ((pin_num / ROCKCHIP_DRV_PINS_PER_REG) * 4); |
| 173 | |
| 174 | *bit = (pin_num % ROCKCHIP_DRV_PINS_PER_REG); |
| 175 | *bit *= ROCKCHIP_DRV_BITS_PER_PIN; |
| 176 | } |
| 177 | |
| 178 | static struct rockchip_pin_bank rk3228_pin_banks[] = { |
| 179 | PIN_BANK(0, 32, "gpio0"), |
| 180 | PIN_BANK(1, 32, "gpio1"), |
| 181 | PIN_BANK(2, 32, "gpio2"), |
| 182 | PIN_BANK(3, 32, "gpio3"), |
| 183 | }; |
| 184 | |
| 185 | static struct rockchip_pin_ctrl rk3228_pin_ctrl = { |
| 186 | .pin_banks = rk3228_pin_banks, |
| 187 | .nr_banks = ARRAY_SIZE(rk3228_pin_banks), |
| 188 | .label = "RK3228-GPIO", |
| 189 | .type = RK3288, |
| 190 | .grf_mux_offset = 0x0, |
| 191 | .iomux_routes = rk3228_mux_route_data, |
| 192 | .niomux_routes = ARRAY_SIZE(rk3228_mux_route_data), |
| 193 | .pull_calc_reg = rk3228_calc_pull_reg_and_bit, |
| 194 | .drv_calc_reg = rk3228_calc_drv_reg_and_bit, |
| 195 | }; |
| 196 | |
| 197 | static const struct udevice_id rk3228_pinctrl_ids[] = { |
| 198 | { |
| 199 | .compatible = "rockchip,rk3228-pinctrl", |
| 200 | .data = (ulong)&rk3228_pin_ctrl |
| 201 | }, |
| 202 | { } |
| 203 | }; |
| 204 | |
| 205 | U_BOOT_DRIVER(pinctrl_rk3228) = { |
| 206 | .name = "rockchip_rk3228_pinctrl", |
| 207 | .id = UCLASS_PINCTRL, |
| 208 | .of_match = rk3228_pinctrl_ids, |
| 209 | .priv_auto_alloc_size = sizeof(struct rockchip_pinctrl_priv), |
| 210 | .ops = &rockchip_pinctrl_ops, |
| 211 | #if !CONFIG_IS_ENABLED(OF_PLATDATA) |
| 212 | .bind = dm_scan_fdt_dev, |
| 213 | #endif |
| 214 | .probe = rockchip_pinctrl_probe, |
| 215 | }; |