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// 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 rk3399_mux_route_data[] = {
{
/* uart2dbga_rx */
.bank_num = 4,
.pin = 8,
.func = 2,
.route_offset = 0xe21c,
.route_val = BIT(16 + 10) | BIT(16 + 11),
}, {
/* uart2dbgb_rx */
.bank_num = 4,
.pin = 16,
.func = 2,
.route_offset = 0xe21c,
.route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(10),
}, {
/* uart2dbgc_rx */
.bank_num = 4,
.pin = 19,
.func = 1,
.route_offset = 0xe21c,
.route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(11),
}, {
/* pcie_clkreqn */
.bank_num = 2,
.pin = 26,
.func = 2,
.route_offset = 0xe21c,
.route_val = BIT(16 + 14),
}, {
/* pcie_clkreqnb */
.bank_num = 4,
.pin = 24,
.func = 1,
.route_offset = 0xe21c,
.route_val = BIT(16 + 14) | BIT(14),
},
};
#define RK3399_PULL_GRF_OFFSET 0xe040
#define RK3399_PULL_PMU_OFFSET 0x40
static void rk3399_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 bank0:16 and bank1:32 pins are located in PMU */
if (bank->bank_num == 0 || bank->bank_num == 1) {
*regmap = priv->regmap_pmu;
*reg = RK3399_PULL_PMU_OFFSET;
*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;
} else {
*regmap = priv->regmap_base;
*reg = RK3399_PULL_GRF_OFFSET;
/* correct the offset, as we're starting with the 3rd bank */
*reg -= 0x20;
*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;
}
}
static void rk3399_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;
int drv_num = (pin_num / 8);
/* The bank0:16 and bank1:32 pins are located in PMU */
if (bank->bank_num == 0 || bank->bank_num == 1)
*regmap = priv->regmap_pmu;
else
*regmap = priv->regmap_base;
*reg = bank->drv[drv_num].offset;
if (bank->drv[drv_num].drv_type == DRV_TYPE_IO_1V8_3V0_AUTO ||
bank->drv[drv_num].drv_type == DRV_TYPE_IO_3V3_ONLY)
*bit = (pin_num % 8) * 3;
else
*bit = (pin_num % 8) * 2;
}
static struct rockchip_pin_bank rk3399_pin_banks[] = {
PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(0, 32, "gpio0",
IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
DRV_TYPE_IO_1V8_ONLY,
DRV_TYPE_IO_1V8_ONLY,
DRV_TYPE_IO_DEFAULT,
DRV_TYPE_IO_DEFAULT,
0x80,
0x88,
-1,
-1,
PULL_TYPE_IO_1V8_ONLY,
PULL_TYPE_IO_1V8_ONLY,
PULL_TYPE_IO_DEFAULT,
PULL_TYPE_IO_DEFAULT
),
PIN_BANK_IOMUX_DRV_FLAGS_OFFSET(1, 32, "gpio1", IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
DRV_TYPE_IO_1V8_OR_3V0,
DRV_TYPE_IO_1V8_OR_3V0,
DRV_TYPE_IO_1V8_OR_3V0,
DRV_TYPE_IO_1V8_OR_3V0,
0xa0,
0xa8,
0xb0,
0xb8
),
PIN_BANK_DRV_FLAGS_PULL_FLAGS(2, 32, "gpio2", DRV_TYPE_IO_1V8_OR_3V0,
DRV_TYPE_IO_1V8_OR_3V0,
DRV_TYPE_IO_1V8_ONLY,
DRV_TYPE_IO_1V8_ONLY,
PULL_TYPE_IO_DEFAULT,
PULL_TYPE_IO_DEFAULT,
PULL_TYPE_IO_1V8_ONLY,
PULL_TYPE_IO_1V8_ONLY
),
PIN_BANK_DRV_FLAGS(3, 32, "gpio3", DRV_TYPE_IO_3V3_ONLY,
DRV_TYPE_IO_3V3_ONLY,
DRV_TYPE_IO_3V3_ONLY,
DRV_TYPE_IO_1V8_OR_3V0
),
PIN_BANK_DRV_FLAGS(4, 32, "gpio4", DRV_TYPE_IO_1V8_OR_3V0,
DRV_TYPE_IO_1V8_3V0_AUTO,
DRV_TYPE_IO_1V8_OR_3V0,
DRV_TYPE_IO_1V8_OR_3V0
),
};
static struct rockchip_pin_ctrl rk3399_pin_ctrl = {
.pin_banks = rk3399_pin_banks,
.nr_banks = ARRAY_SIZE(rk3399_pin_banks),
.label = "RK3399-GPIO",
.type = RK3399,
.grf_mux_offset = 0xe000,
.pmu_mux_offset = 0x0,
.grf_drv_offset = 0xe100,
.pmu_drv_offset = 0x80,
.iomux_routes = rk3399_mux_route_data,
.niomux_routes = ARRAY_SIZE(rk3399_mux_route_data),
.pull_calc_reg = rk3399_calc_pull_reg_and_bit,
.drv_calc_reg = rk3399_calc_drv_reg_and_bit,
};
static const struct udevice_id rk3399_pinctrl_ids[] = {
{
.compatible = "rockchip,rk3399-pinctrl",
.data = (ulong)&rk3399_pin_ctrl
},
{ }
};
U_BOOT_DRIVER(pinctrl_rk3399) = {
.name = "rockchip_rk3399_pinctrl",
.id = UCLASS_PINCTRL,
.of_match = rk3399_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,
};
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