u-boot/drivers/pinctrl/rockchip/pinctrl-rk3328.c
David Wu e7ae4cf27a pinctrl: rockchip: Add common rockchip pinctrl driver
Use this driver to fit all Rockchip SOCs and to support
the desired pinctrl configuration via DTS.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:11 +01:00

227 lines
5 KiB
C

// 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_recalced_data rk3328_mux_recalced_data[] = {
{
.num = 2,
.pin = 12,
.reg = 0x24,
.bit = 8,
.mask = 0x3
}, {
.num = 2,
.pin = 15,
.reg = 0x28,
.bit = 0,
.mask = 0x7
}, {
.num = 2,
.pin = 23,
.reg = 0x30,
.bit = 14,
.mask = 0x3
},
};
static struct rockchip_mux_route_data rk3328_mux_route_data[] = {
{
/* uart2dbg_rxm0 */
.bank_num = 1,
.pin = 1,
.func = 2,
.route_offset = 0x50,
.route_val = BIT(16) | BIT(16 + 1),
}, {
/* uart2dbg_rxm1 */
.bank_num = 2,
.pin = 1,
.func = 1,
.route_offset = 0x50,
.route_val = BIT(16) | BIT(16 + 1) | BIT(0),
}, {
/* gmac-m1_rxd0 */
.bank_num = 1,
.pin = 11,
.func = 2,
.route_offset = 0x50,
.route_val = BIT(16 + 2) | BIT(2),
}, {
/* gmac-m1-optimized_rxd3 */
.bank_num = 1,
.pin = 14,
.func = 2,
.route_offset = 0x50,
.route_val = BIT(16 + 10) | BIT(10),
}, {
/* pdm_sdi0m0 */
.bank_num = 2,
.pin = 19,
.func = 2,
.route_offset = 0x50,
.route_val = BIT(16 + 3),
}, {
/* pdm_sdi0m1 */
.bank_num = 1,
.pin = 23,
.func = 3,
.route_offset = 0x50,
.route_val = BIT(16 + 3) | BIT(3),
}, {
/* spi_rxdm2 */
.bank_num = 3,
.pin = 2,
.func = 4,
.route_offset = 0x50,
.route_val = BIT(16 + 4) | BIT(16 + 5) | BIT(5),
}, {
/* i2s2_sdim0 */
.bank_num = 1,
.pin = 24,
.func = 1,
.route_offset = 0x50,
.route_val = BIT(16 + 6),
}, {
/* i2s2_sdim1 */
.bank_num = 3,
.pin = 2,
.func = 6,
.route_offset = 0x50,
.route_val = BIT(16 + 6) | BIT(6),
}, {
/* card_iom1 */
.bank_num = 2,
.pin = 22,
.func = 3,
.route_offset = 0x50,
.route_val = BIT(16 + 7) | BIT(7),
}, {
/* tsp_d5m1 */
.bank_num = 2,
.pin = 16,
.func = 3,
.route_offset = 0x50,
.route_val = BIT(16 + 8) | BIT(8),
}, {
/* cif_data5m1 */
.bank_num = 2,
.pin = 16,
.func = 4,
.route_offset = 0x50,
.route_val = BIT(16 + 9) | BIT(9),
},
};
#define RK3328_PULL_OFFSET 0x100
static void rk3328_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;
*regmap = priv->regmap_base;
*reg = RK3328_PULL_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;
}
#define RK3328_DRV_GRF_OFFSET 0x200
static void rk3328_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;
*regmap = priv->regmap_base;
*reg = RK3328_DRV_GRF_OFFSET;
*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;
}
#define RK3328_SCHMITT_BITS_PER_PIN 1
#define RK3328_SCHMITT_PINS_PER_REG 16
#define RK3328_SCHMITT_BANK_STRIDE 8
#define RK3328_SCHMITT_GRF_OFFSET 0x380
static int rk3328_calc_schmitt_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;
*regmap = priv->regmap_base;
*reg = RK3328_SCHMITT_GRF_OFFSET;
*reg += bank->bank_num * RK3328_SCHMITT_BANK_STRIDE;
*reg += ((pin_num / RK3328_SCHMITT_PINS_PER_REG) * 4);
*bit = pin_num % RK3328_SCHMITT_PINS_PER_REG;
return 0;
}
static struct rockchip_pin_bank rk3328_pin_banks[] = {
PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
IOMUX_WIDTH_3BIT,
IOMUX_WIDTH_3BIT,
0),
PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
IOMUX_WIDTH_3BIT,
IOMUX_WIDTH_3BIT,
0,
0),
};
static struct rockchip_pin_ctrl rk3328_pin_ctrl = {
.pin_banks = rk3328_pin_banks,
.nr_banks = ARRAY_SIZE(rk3328_pin_banks),
.label = "RK3328-GPIO",
.type = RK3288,
.grf_mux_offset = 0x0,
.iomux_recalced = rk3328_mux_recalced_data,
.niomux_recalced = ARRAY_SIZE(rk3328_mux_recalced_data),
.iomux_routes = rk3328_mux_route_data,
.niomux_routes = ARRAY_SIZE(rk3328_mux_route_data),
.pull_calc_reg = rk3328_calc_pull_reg_and_bit,
.drv_calc_reg = rk3328_calc_drv_reg_and_bit,
.schmitt_calc_reg = rk3328_calc_schmitt_reg_and_bit,
};
static const struct udevice_id rk3328_pinctrl_ids[] = {
{
.compatible = "rockchip,rk3328-pinctrl",
.data = (ulong)&rk3328_pin_ctrl
},
{ }
};
U_BOOT_DRIVER(pinctrl_rk3328) = {
.name = "rockchip_rk3328_pinctrl",
.id = UCLASS_PINCTRL,
.of_match = rk3328_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,
};