diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rk3288.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rk3288.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3288.c b/drivers/pinctrl/rockchip/pinctrl-rk3288.c new file mode 100644 index 0000000000..60585f3208 --- /dev/null +++ b/drivers/pinctrl/rockchip/pinctrl-rk3288.c @@ -0,0 +1,157 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2019 Rockchip Electronics Co., Ltd + */ + +#include <common.h> +#include <dm.h> +#include <dm/pinctrl.h> +#include <regmap.h> +#include <syscon.h> + +#include "pinctrl-rockchip.h" + +static struct rockchip_mux_route_data rk3288_mux_route_data[] = { + { + /* edphdmi_cecinoutt1 */ + .bank_num = 7, + .pin = 16, + .func = 2, + .route_offset = 0x264, + .route_val = BIT(16 + 12) | BIT(12), + }, { + /* edphdmi_cecinout */ + .bank_num = 7, + .pin = 23, + .func = 4, + .route_offset = 0x264, + .route_val = BIT(16 + 12), + }, +}; + +#define RK3288_PULL_OFFSET 0x140 +#define RK3288_PULL_PMU_OFFSET 0x64 + +static void rk3288_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, + int pin_num, struct regmap **regmap, + int *reg, u8 *bit) +{ + struct rockchip_pinctrl_priv *priv = bank->priv; + + /* The first 24 pins of the first bank are located in PMU */ + if (bank->bank_num == 0) { + *regmap = priv->regmap_pmu; + *reg = RK3288_PULL_PMU_OFFSET; + + *reg += ((pin_num / ROCKCHIP_PULL_PINS_PER_REG) * 4); + *bit = pin_num % ROCKCHIP_PULL_PINS_PER_REG; + *bit *= ROCKCHIP_PULL_BITS_PER_PIN; + } else { + *regmap = priv->regmap_base; + *reg = RK3288_PULL_OFFSET; + + /* correct the offset, as we're starting with the 2nd bank */ + *reg -= 0x10; + *reg += bank->bank_num * ROCKCHIP_PULL_BANK_STRIDE; + *reg += ((pin_num / ROCKCHIP_PULL_PINS_PER_REG) * 4); + + *bit = (pin_num % ROCKCHIP_PULL_PINS_PER_REG); + *bit *= ROCKCHIP_PULL_BITS_PER_PIN; + } +} + +#define RK3288_DRV_PMU_OFFSET 0x70 +#define RK3288_DRV_GRF_OFFSET 0x1c0 + +static void rk3288_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, + int pin_num, struct regmap **regmap, + int *reg, u8 *bit) +{ + struct rockchip_pinctrl_priv *priv = bank->priv; + + /* The first 24 pins of the first bank are located in PMU */ + if (bank->bank_num == 0) { + *regmap = priv->regmap_pmu; + *reg = RK3288_DRV_PMU_OFFSET; + + *reg += ((pin_num / ROCKCHIP_DRV_PINS_PER_REG) * 4); + *bit = pin_num % ROCKCHIP_DRV_PINS_PER_REG; + *bit *= ROCKCHIP_DRV_BITS_PER_PIN; + } else { + *regmap = priv->regmap_base; + *reg = RK3288_DRV_GRF_OFFSET; + + /* correct the offset, as we're starting with the 2nd bank */ + *reg -= 0x10; + *reg += bank->bank_num * ROCKCHIP_DRV_BANK_STRIDE; + *reg += ((pin_num / ROCKCHIP_DRV_PINS_PER_REG) * 4); + + *bit = (pin_num % ROCKCHIP_DRV_PINS_PER_REG); + *bit *= ROCKCHIP_DRV_BITS_PER_PIN; + } +} + +static struct rockchip_pin_bank rk3288_pin_banks[] = { + PIN_BANK_IOMUX_FLAGS(0, 24, "gpio0", IOMUX_SOURCE_PMU, + IOMUX_SOURCE_PMU, + IOMUX_SOURCE_PMU, + IOMUX_UNROUTED + ), + PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_UNROUTED, + IOMUX_UNROUTED, + IOMUX_UNROUTED, + 0 + ), + PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, IOMUX_UNROUTED), + PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, IOMUX_WIDTH_4BIT), + PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4", IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT, + 0, + 0 + ), + PIN_BANK_IOMUX_FLAGS(5, 32, "gpio5", IOMUX_UNROUTED, + 0, + 0, + IOMUX_UNROUTED + ), + PIN_BANK_IOMUX_FLAGS(6, 32, "gpio6", 0, 0, 0, IOMUX_UNROUTED), + PIN_BANK_IOMUX_FLAGS(7, 32, "gpio7", 0, + 0, + IOMUX_WIDTH_4BIT, + IOMUX_UNROUTED + ), + PIN_BANK(8, 16, "gpio8"), +}; + +static struct rockchip_pin_ctrl rk3288_pin_ctrl = { + .pin_banks = rk3288_pin_banks, + .nr_banks = ARRAY_SIZE(rk3288_pin_banks), + .label = "RK3288-GPIO", + .type = RK3288, + .grf_mux_offset = 0x0, + .pmu_mux_offset = 0x84, + .iomux_routes = rk3288_mux_route_data, + .niomux_routes = ARRAY_SIZE(rk3288_mux_route_data), + .pull_calc_reg = rk3288_calc_pull_reg_and_bit, + .drv_calc_reg = rk3288_calc_drv_reg_and_bit, +}; + +static const struct udevice_id rk3288_pinctrl_ids[] = { + { + .compatible = "rockchip,rk3288-pinctrl", + .data = (ulong)&rk3288_pin_ctrl + }, + { } +}; + +U_BOOT_DRIVER(pinctrl_rk3288) = { + .name = "rockchip_rk3288_pinctrl", + .id = UCLASS_PINCTRL, + .of_match = rk3288_pinctrl_ids, + .priv_auto_alloc_size = sizeof(struct rockchip_pinctrl_priv), + .ops = &rockchip_pinctrl_ops, +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + .bind = dm_scan_fdt_dev, +#endif + .probe = rockchip_pinctrl_probe, +}; |