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>
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3328.c b/drivers/pinctrl/rockchip/pinctrl-rk3328.c
new file mode 100644
index 0000000..f1b3d10
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3328.c
@@ -0,0 +1,227 @@
+// 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,
+};