1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3368.c b/drivers/pinctrl/rockchip/pinctrl-rk3368.c
new file mode 100644
index 0000000000..f5cd6ff24e
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3368.c
@@ -0,0 +1,116 @@
+// 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"
+
+#define RK3368_PULL_GRF_OFFSET		0x100
+#define RK3368_PULL_PMU_OFFSET		0x10
+
+static void rk3368_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 32 pins of the first bank are located in PMU */
+	if (bank->bank_num == 0) {
+		*regmap = priv->regmap_pmu;
+		*reg = RK3368_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 = RK3368_PULL_GRF_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 RK3368_DRV_PMU_OFFSET		0x20
+#define RK3368_DRV_GRF_OFFSET		0x200
+
+static void rk3368_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 32 pins of the first bank are located in PMU */
+	if (bank->bank_num == 0) {
+		*regmap = priv->regmap_pmu;
+		*reg = RK3368_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 = RK3368_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 rk3368_pin_banks[] = {
+	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
+					     IOMUX_SOURCE_PMU,
+					     IOMUX_SOURCE_PMU,
+					     IOMUX_SOURCE_PMU
+			    ),
+	PIN_BANK(1, 32, "gpio1"),
+	PIN_BANK(2, 32, "gpio2"),
+	PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3368_pin_ctrl = {
+		.pin_banks		= rk3368_pin_banks,
+		.nr_banks		= ARRAY_SIZE(rk3368_pin_banks),
+		.label			= "RK3368-GPIO",
+		.type			= RK3368,
+		.grf_mux_offset		= 0x0,
+		.pmu_mux_offset		= 0x0,
+		.pull_calc_reg		= rk3368_calc_pull_reg_and_bit,
+		.drv_calc_reg		= rk3368_calc_drv_reg_and_bit,
+};
+
+static const struct udevice_id rk3368_pinctrl_ids[] = {
+	{
+		.compatible = "rockchip,rk3368-pinctrl",
+		.data = (ulong)&rk3368_pin_ctrl
+	},
+	{ }
+};
+
+U_BOOT_DRIVER(pinctrl_rk3368) = {
+	.name		= "rockchip_rk3368_pinctrl",
+	.id		= UCLASS_PINCTRL,
+	.of_match	= rk3368_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,
+};