9 files changed, 1263 insertions, 0 deletions

diff --git a/drivers/pinctrl/ralink/Kconfig b/drivers/pinctrl/ralink/Kconfig
new file mode 100644
index 000000000..1e4c5e43d
--- /dev/null
+++ b/drivers/pinctrl/ralink/Kconfig
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menu "Ralink pinctrl drivers"
+        depends on RALINK
+
+config PINCTRL_RALINK
+        bool "Ralink pinctrl driver"
+        select PINMUX
+        select GENERIC_PINCONF
+
+config PINCTRL_MT7620
+        bool "MT7620 pinctrl subdriver"
+        depends on RALINK && SOC_MT7620
+        select PINCTRL_RALINK
+
+config PINCTRL_MT7621
+        bool "MT7621 pinctrl subdriver"
+        depends on RALINK && SOC_MT7621
+        select PINCTRL_RALINK
+
+config PINCTRL_RT2880
+        bool "RT2880 pinctrl subdriver"
+        depends on RALINK && SOC_RT288X
+        select PINCTRL_RALINK
+
+config PINCTRL_RT305X
+        bool "RT305X pinctrl subdriver"
+        depends on RALINK && SOC_RT305X
+        select PINCTRL_RALINK
+
+config PINCTRL_RT3883
+        bool "RT3883 pinctrl subdriver"
+        depends on RALINK && SOC_RT3883
+        select PINCTRL_RALINK
+
+endmenu
diff --git a/drivers/pinctrl/ralink/Makefile b/drivers/pinctrl/ralink/Makefile
new file mode 100644
index 000000000..0ebbe5525
--- /dev/null
+++ b/drivers/pinctrl/ralink/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_PINCTRL_RALINK)   += pinctrl-ralink.o
+
+obj-$(CONFIG_PINCTRL_MT7620)   += pinctrl-mt7620.o
+obj-$(CONFIG_PINCTRL_MT7621)   += pinctrl-mt7621.o
+obj-$(CONFIG_PINCTRL_RT2880)   += pinctrl-rt2880.o
+obj-$(CONFIG_PINCTRL_RT305X)   += pinctrl-rt305x.o
+obj-$(CONFIG_PINCTRL_RT3883)   += pinctrl-rt3883.o
diff --git a/drivers/pinctrl/ralink/pinctrl-mt7620.c b/drivers/pinctrl/ralink/pinctrl-mt7620.c
new file mode 100644
index 000000000..929a1ace5
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-mt7620.c
@@ -0,0 +1,392 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <asm/mach-ralink/ralink_regs.h>
+#include <asm/mach-ralink/mt7620.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include "pinctrl-ralink.h"
+
+#define MT7620_GPIO_MODE_UART0_SHIFT	2
+#define MT7620_GPIO_MODE_UART0_MASK	0x7
+#define MT7620_GPIO_MODE_UART0(x)	((x) << MT7620_GPIO_MODE_UART0_SHIFT)
+#define MT7620_GPIO_MODE_UARTF		0x0
+#define MT7620_GPIO_MODE_PCM_UARTF	0x1
+#define MT7620_GPIO_MODE_PCM_I2S	0x2
+#define MT7620_GPIO_MODE_I2S_UARTF	0x3
+#define MT7620_GPIO_MODE_PCM_GPIO	0x4
+#define MT7620_GPIO_MODE_GPIO_UARTF	0x5
+#define MT7620_GPIO_MODE_GPIO_I2S	0x6
+#define MT7620_GPIO_MODE_GPIO		0x7
+
+#define MT7620_GPIO_MODE_NAND		0
+#define MT7620_GPIO_MODE_SD		1
+#define MT7620_GPIO_MODE_ND_SD_GPIO	2
+#define MT7620_GPIO_MODE_ND_SD_MASK	0x3
+#define MT7620_GPIO_MODE_ND_SD_SHIFT	18
+
+#define MT7620_GPIO_MODE_PCIE_RST	0
+#define MT7620_GPIO_MODE_PCIE_REF	1
+#define MT7620_GPIO_MODE_PCIE_GPIO	2
+#define MT7620_GPIO_MODE_PCIE_MASK	0x3
+#define MT7620_GPIO_MODE_PCIE_SHIFT	16
+
+#define MT7620_GPIO_MODE_WDT_RST	0
+#define MT7620_GPIO_MODE_WDT_REF	1
+#define MT7620_GPIO_MODE_WDT_GPIO	2
+#define MT7620_GPIO_MODE_WDT_MASK	0x3
+#define MT7620_GPIO_MODE_WDT_SHIFT	21
+
+#define MT7620_GPIO_MODE_MDIO		0
+#define MT7620_GPIO_MODE_MDIO_REFCLK	1
+#define MT7620_GPIO_MODE_MDIO_GPIO	2
+#define MT7620_GPIO_MODE_MDIO_MASK	0x3
+#define MT7620_GPIO_MODE_MDIO_SHIFT	7
+
+#define MT7620_GPIO_MODE_I2C		0
+#define MT7620_GPIO_MODE_UART1		5
+#define MT7620_GPIO_MODE_RGMII1		9
+#define MT7620_GPIO_MODE_RGMII2		10
+#define MT7620_GPIO_MODE_SPI		11
+#define MT7620_GPIO_MODE_SPI_REF_CLK	12
+#define MT7620_GPIO_MODE_WLED		13
+#define MT7620_GPIO_MODE_JTAG		15
+#define MT7620_GPIO_MODE_EPHY		15
+#define MT7620_GPIO_MODE_PA		20
+
+static struct ralink_pmx_func i2c_func[] =  { FUNC("i2c", 0, 1, 2) };
+static struct ralink_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
+static struct ralink_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) };
+static struct ralink_pmx_func mdio_func[] = {
+	FUNC("mdio", MT7620_GPIO_MODE_MDIO, 22, 2),
+	FUNC("refclk", MT7620_GPIO_MODE_MDIO_REFCLK, 22, 2),
+};
+static struct ralink_pmx_func rgmii1_func[] = { FUNC("rgmii1", 0, 24, 12) };
+static struct ralink_pmx_func refclk_func[] = { FUNC("spi refclk", 0, 37, 3) };
+static struct ralink_pmx_func ephy_func[] = { FUNC("ephy", 0, 40, 5) };
+static struct ralink_pmx_func rgmii2_func[] = { FUNC("rgmii2", 0, 60, 12) };
+static struct ralink_pmx_func wled_func[] = { FUNC("wled", 0, 72, 1) };
+static struct ralink_pmx_func pa_func[] = { FUNC("pa", 0, 18, 4) };
+static struct ralink_pmx_func uartf_func[] = {
+	FUNC("uartf", MT7620_GPIO_MODE_UARTF, 7, 8),
+	FUNC("pcm uartf", MT7620_GPIO_MODE_PCM_UARTF, 7, 8),
+	FUNC("pcm i2s", MT7620_GPIO_MODE_PCM_I2S, 7, 8),
+	FUNC("i2s uartf", MT7620_GPIO_MODE_I2S_UARTF, 7, 8),
+	FUNC("pcm gpio", MT7620_GPIO_MODE_PCM_GPIO, 11, 4),
+	FUNC("gpio uartf", MT7620_GPIO_MODE_GPIO_UARTF, 7, 4),
+	FUNC("gpio i2s", MT7620_GPIO_MODE_GPIO_I2S, 7, 4),
+};
+static struct ralink_pmx_func wdt_func[] = {
+	FUNC("wdt rst", 0, 17, 1),
+	FUNC("wdt refclk", 0, 17, 1),
+	};
+static struct ralink_pmx_func pcie_rst_func[] = {
+	FUNC("pcie rst", MT7620_GPIO_MODE_PCIE_RST, 36, 1),
+	FUNC("pcie refclk", MT7620_GPIO_MODE_PCIE_REF, 36, 1)
+};
+static struct ralink_pmx_func nd_sd_func[] = {
+	FUNC("nand", MT7620_GPIO_MODE_NAND, 45, 15),
+	FUNC("sd", MT7620_GPIO_MODE_SD, 47, 13)
+};
+
+static struct ralink_pmx_group mt7620a_pinmux_data[] = {
+	GRP("i2c", i2c_func, 1, MT7620_GPIO_MODE_I2C),
+	GRP("uartf", uartf_func, MT7620_GPIO_MODE_UART0_MASK,
+		MT7620_GPIO_MODE_UART0_SHIFT),
+	GRP("spi", spi_func, 1, MT7620_GPIO_MODE_SPI),
+	GRP("uartlite", uartlite_func, 1, MT7620_GPIO_MODE_UART1),
+	GRP_G("wdt", wdt_func, MT7620_GPIO_MODE_WDT_MASK,
+		MT7620_GPIO_MODE_WDT_GPIO, MT7620_GPIO_MODE_WDT_SHIFT),
+	GRP_G("mdio", mdio_func, MT7620_GPIO_MODE_MDIO_MASK,
+		MT7620_GPIO_MODE_MDIO_GPIO, MT7620_GPIO_MODE_MDIO_SHIFT),
+	GRP("rgmii1", rgmii1_func, 1, MT7620_GPIO_MODE_RGMII1),
+	GRP("spi refclk", refclk_func, 1, MT7620_GPIO_MODE_SPI_REF_CLK),
+	GRP_G("pcie", pcie_rst_func, MT7620_GPIO_MODE_PCIE_MASK,
+		MT7620_GPIO_MODE_PCIE_GPIO, MT7620_GPIO_MODE_PCIE_SHIFT),
+	GRP_G("nd_sd", nd_sd_func, MT7620_GPIO_MODE_ND_SD_MASK,
+		MT7620_GPIO_MODE_ND_SD_GPIO, MT7620_GPIO_MODE_ND_SD_SHIFT),
+	GRP("rgmii2", rgmii2_func, 1, MT7620_GPIO_MODE_RGMII2),
+	GRP("wled", wled_func, 1, MT7620_GPIO_MODE_WLED),
+	GRP("ephy", ephy_func, 1, MT7620_GPIO_MODE_EPHY),
+	GRP("pa", pa_func, 1, MT7620_GPIO_MODE_PA),
+	{ 0 }
+};
+
+static struct ralink_pmx_func pwm1_func_mt76x8[] = {
+	FUNC("sdxc d6", 3, 19, 1),
+	FUNC("utif", 2, 19, 1),
+	FUNC("gpio", 1, 19, 1),
+	FUNC("pwm1", 0, 19, 1),
+};
+
+static struct ralink_pmx_func pwm0_func_mt76x8[] = {
+	FUNC("sdxc d7", 3, 18, 1),
+	FUNC("utif", 2, 18, 1),
+	FUNC("gpio", 1, 18, 1),
+	FUNC("pwm0", 0, 18, 1),
+};
+
+static struct ralink_pmx_func uart2_func_mt76x8[] = {
+	FUNC("sdxc d5 d4", 3, 20, 2),
+	FUNC("pwm", 2, 20, 2),
+	FUNC("gpio", 1, 20, 2),
+	FUNC("uart2", 0, 20, 2),
+};
+
+static struct ralink_pmx_func uart1_func_mt76x8[] = {
+	FUNC("sw_r", 3, 45, 2),
+	FUNC("pwm", 2, 45, 2),
+	FUNC("gpio", 1, 45, 2),
+	FUNC("uart1", 0, 45, 2),
+};
+
+static struct ralink_pmx_func i2c_func_mt76x8[] = {
+	FUNC("-", 3, 4, 2),
+	FUNC("debug", 2, 4, 2),
+	FUNC("gpio", 1, 4, 2),
+	FUNC("i2c", 0, 4, 2),
+};
+
+static struct ralink_pmx_func refclk_func_mt76x8[] = { FUNC("refclk", 0, 37, 1) };
+static struct ralink_pmx_func perst_func_mt76x8[] = { FUNC("perst", 0, 36, 1) };
+static struct ralink_pmx_func wdt_func_mt76x8[] = { FUNC("wdt", 0, 38, 1) };
+static struct ralink_pmx_func spi_func_mt76x8[] = { FUNC("spi", 0, 7, 4) };
+
+static struct ralink_pmx_func sd_mode_func_mt76x8[] = {
+	FUNC("jtag", 3, 22, 8),
+	FUNC("utif", 2, 22, 8),
+	FUNC("gpio", 1, 22, 8),
+	FUNC("sdxc", 0, 22, 8),
+};
+
+static struct ralink_pmx_func uart0_func_mt76x8[] = {
+	FUNC("-", 3, 12, 2),
+	FUNC("-", 2, 12, 2),
+	FUNC("gpio", 1, 12, 2),
+	FUNC("uart0", 0, 12, 2),
+};
+
+static struct ralink_pmx_func i2s_func_mt76x8[] = {
+	FUNC("antenna", 3, 0, 4),
+	FUNC("pcm", 2, 0, 4),
+	FUNC("gpio", 1, 0, 4),
+	FUNC("i2s", 0, 0, 4),
+};
+
+static struct ralink_pmx_func spi_cs1_func_mt76x8[] = {
+	FUNC("-", 3, 6, 1),
+	FUNC("refclk", 2, 6, 1),
+	FUNC("gpio", 1, 6, 1),
+	FUNC("spi cs1", 0, 6, 1),
+};
+
+static struct ralink_pmx_func spis_func_mt76x8[] = {
+	FUNC("pwm_uart2", 3, 14, 4),
+	FUNC("utif", 2, 14, 4),
+	FUNC("gpio", 1, 14, 4),
+	FUNC("spis", 0, 14, 4),
+};
+
+static struct ralink_pmx_func gpio_func_mt76x8[] = {
+	FUNC("pcie", 3, 11, 1),
+	FUNC("refclk", 2, 11, 1),
+	FUNC("gpio", 1, 11, 1),
+	FUNC("gpio", 0, 11, 1),
+};
+
+static struct ralink_pmx_func p4led_kn_func_mt76x8[] = {
+	FUNC("jtag", 3, 30, 1),
+	FUNC("utif", 2, 30, 1),
+	FUNC("gpio", 1, 30, 1),
+	FUNC("p4led_kn", 0, 30, 1),
+};
+
+static struct ralink_pmx_func p3led_kn_func_mt76x8[] = {
+	FUNC("jtag", 3, 31, 1),
+	FUNC("utif", 2, 31, 1),
+	FUNC("gpio", 1, 31, 1),
+	FUNC("p3led_kn", 0, 31, 1),
+};
+
+static struct ralink_pmx_func p2led_kn_func_mt76x8[] = {
+	FUNC("jtag", 3, 32, 1),
+	FUNC("utif", 2, 32, 1),
+	FUNC("gpio", 1, 32, 1),
+	FUNC("p2led_kn", 0, 32, 1),
+};
+
+static struct ralink_pmx_func p1led_kn_func_mt76x8[] = {
+	FUNC("jtag", 3, 33, 1),
+	FUNC("utif", 2, 33, 1),
+	FUNC("gpio", 1, 33, 1),
+	FUNC("p1led_kn", 0, 33, 1),
+};
+
+static struct ralink_pmx_func p0led_kn_func_mt76x8[] = {
+	FUNC("jtag", 3, 34, 1),
+	FUNC("rsvd", 2, 34, 1),
+	FUNC("gpio", 1, 34, 1),
+	FUNC("p0led_kn", 0, 34, 1),
+};
+
+static struct ralink_pmx_func wled_kn_func_mt76x8[] = {
+	FUNC("rsvd", 3, 35, 1),
+	FUNC("rsvd", 2, 35, 1),
+	FUNC("gpio", 1, 35, 1),
+	FUNC("wled_kn", 0, 35, 1),
+};
+
+static struct ralink_pmx_func p4led_an_func_mt76x8[] = {
+	FUNC("jtag", 3, 39, 1),
+	FUNC("utif", 2, 39, 1),
+	FUNC("gpio", 1, 39, 1),
+	FUNC("p4led_an", 0, 39, 1),
+};
+
+static struct ralink_pmx_func p3led_an_func_mt76x8[] = {
+	FUNC("jtag", 3, 40, 1),
+	FUNC("utif", 2, 40, 1),
+	FUNC("gpio", 1, 40, 1),
+	FUNC("p3led_an", 0, 40, 1),
+};
+
+static struct ralink_pmx_func p2led_an_func_mt76x8[] = {
+	FUNC("jtag", 3, 41, 1),
+	FUNC("utif", 2, 41, 1),
+	FUNC("gpio", 1, 41, 1),
+	FUNC("p2led_an", 0, 41, 1),
+};
+
+static struct ralink_pmx_func p1led_an_func_mt76x8[] = {
+	FUNC("jtag", 3, 42, 1),
+	FUNC("utif", 2, 42, 1),
+	FUNC("gpio", 1, 42, 1),
+	FUNC("p1led_an", 0, 42, 1),
+};
+
+static struct ralink_pmx_func p0led_an_func_mt76x8[] = {
+	FUNC("jtag", 3, 43, 1),
+	FUNC("rsvd", 2, 43, 1),
+	FUNC("gpio", 1, 43, 1),
+	FUNC("p0led_an", 0, 43, 1),
+};
+
+static struct ralink_pmx_func wled_an_func_mt76x8[] = {
+	FUNC("rsvd", 3, 44, 1),
+	FUNC("rsvd", 2, 44, 1),
+	FUNC("gpio", 1, 44, 1),
+	FUNC("wled_an", 0, 44, 1),
+};
+
+#define MT76X8_GPIO_MODE_MASK		0x3
+
+#define MT76X8_GPIO_MODE_P4LED_KN	58
+#define MT76X8_GPIO_MODE_P3LED_KN	56
+#define MT76X8_GPIO_MODE_P2LED_KN	54
+#define MT76X8_GPIO_MODE_P1LED_KN	52
+#define MT76X8_GPIO_MODE_P0LED_KN	50
+#define MT76X8_GPIO_MODE_WLED_KN	48
+#define MT76X8_GPIO_MODE_P4LED_AN	42
+#define MT76X8_GPIO_MODE_P3LED_AN	40
+#define MT76X8_GPIO_MODE_P2LED_AN	38
+#define MT76X8_GPIO_MODE_P1LED_AN	36
+#define MT76X8_GPIO_MODE_P0LED_AN	34
+#define MT76X8_GPIO_MODE_WLED_AN	32
+#define MT76X8_GPIO_MODE_PWM1		30
+#define MT76X8_GPIO_MODE_PWM0		28
+#define MT76X8_GPIO_MODE_UART2		26
+#define MT76X8_GPIO_MODE_UART1		24
+#define MT76X8_GPIO_MODE_I2C		20
+#define MT76X8_GPIO_MODE_REFCLK		18
+#define MT76X8_GPIO_MODE_PERST		16
+#define MT76X8_GPIO_MODE_WDT		14
+#define MT76X8_GPIO_MODE_SPI		12
+#define MT76X8_GPIO_MODE_SDMODE		10
+#define MT76X8_GPIO_MODE_UART0		8
+#define MT76X8_GPIO_MODE_I2S		6
+#define MT76X8_GPIO_MODE_CS1		4
+#define MT76X8_GPIO_MODE_SPIS		2
+#define MT76X8_GPIO_MODE_GPIO		0
+
+static struct ralink_pmx_group mt76x8_pinmux_data[] = {
+	GRP_G("pwm1", pwm1_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_PWM1),
+	GRP_G("pwm0", pwm0_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_PWM0),
+	GRP_G("uart2", uart2_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_UART2),
+	GRP_G("uart1", uart1_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_UART1),
+	GRP_G("i2c", i2c_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_I2C),
+	GRP("refclk", refclk_func_mt76x8, 1, MT76X8_GPIO_MODE_REFCLK),
+	GRP("perst", perst_func_mt76x8, 1, MT76X8_GPIO_MODE_PERST),
+	GRP("wdt", wdt_func_mt76x8, 1, MT76X8_GPIO_MODE_WDT),
+	GRP("spi", spi_func_mt76x8, 1, MT76X8_GPIO_MODE_SPI),
+	GRP_G("sdmode", sd_mode_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_SDMODE),
+	GRP_G("uart0", uart0_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_UART0),
+	GRP_G("i2s", i2s_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_I2S),
+	GRP_G("spi cs1", spi_cs1_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_CS1),
+	GRP_G("spis", spis_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_SPIS),
+	GRP_G("gpio", gpio_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_GPIO),
+	GRP_G("wled_an", wled_an_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_WLED_AN),
+	GRP_G("p0led_an", p0led_an_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P0LED_AN),
+	GRP_G("p1led_an", p1led_an_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P1LED_AN),
+	GRP_G("p2led_an", p2led_an_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P2LED_AN),
+	GRP_G("p3led_an", p3led_an_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P3LED_AN),
+	GRP_G("p4led_an", p4led_an_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P4LED_AN),
+	GRP_G("wled_kn", wled_kn_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_WLED_KN),
+	GRP_G("p0led_kn", p0led_kn_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P0LED_KN),
+	GRP_G("p1led_kn", p1led_kn_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P1LED_KN),
+	GRP_G("p2led_kn", p2led_kn_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P2LED_KN),
+	GRP_G("p3led_kn", p3led_kn_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P3LED_KN),
+	GRP_G("p4led_kn", p4led_kn_func_mt76x8, MT76X8_GPIO_MODE_MASK,
+				1, MT76X8_GPIO_MODE_P4LED_KN),
+	{ 0 }
+};
+
+static int mt7620_pinctrl_probe(struct platform_device *pdev)
+{
+	if (is_mt76x8())
+		return ralink_pinctrl_init(pdev, mt76x8_pinmux_data);
+	else
+		return ralink_pinctrl_init(pdev, mt7620a_pinmux_data);
+}
+
+static const struct of_device_id mt7620_pinctrl_match[] = {
+	{ .compatible = "ralink,mt7620-pinctrl" },
+	{ .compatible = "ralink,rt2880-pinmux" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, mt7620_pinctrl_match);
+
+static struct platform_driver mt7620_pinctrl_driver = {
+	.probe = mt7620_pinctrl_probe,
+	.driver = {
+		.name = "mt7620-pinctrl",
+		.of_match_table = mt7620_pinctrl_match,
+	},
+};
+
+static int __init mt7620_pinctrl_init(void)
+{
+	return platform_driver_register(&mt7620_pinctrl_driver);
+}
+core_initcall_sync(mt7620_pinctrl_init);
diff --git a/drivers/pinctrl/ralink/pinctrl-mt7621.c b/drivers/pinctrl/ralink/pinctrl-mt7621.c
new file mode 100644
index 000000000..0297cf455
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-mt7621.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include "pinctrl-ralink.h"
+
+#define MT7621_GPIO_MODE_UART1		1
+#define MT7621_GPIO_MODE_I2C		2
+#define MT7621_GPIO_MODE_UART3_MASK	0x3
+#define MT7621_GPIO_MODE_UART3_SHIFT	3
+#define MT7621_GPIO_MODE_UART3_GPIO	1
+#define MT7621_GPIO_MODE_UART2_MASK	0x3
+#define MT7621_GPIO_MODE_UART2_SHIFT	5
+#define MT7621_GPIO_MODE_UART2_GPIO	1
+#define MT7621_GPIO_MODE_JTAG		7
+#define MT7621_GPIO_MODE_WDT_MASK	0x3
+#define MT7621_GPIO_MODE_WDT_SHIFT	8
+#define MT7621_GPIO_MODE_WDT_GPIO	1
+#define MT7621_GPIO_MODE_PCIE_RST	0
+#define MT7621_GPIO_MODE_PCIE_REF	2
+#define MT7621_GPIO_MODE_PCIE_MASK	0x3
+#define MT7621_GPIO_MODE_PCIE_SHIFT	10
+#define MT7621_GPIO_MODE_PCIE_GPIO	1
+#define MT7621_GPIO_MODE_MDIO_MASK	0x3
+#define MT7621_GPIO_MODE_MDIO_SHIFT	12
+#define MT7621_GPIO_MODE_MDIO_GPIO	1
+#define MT7621_GPIO_MODE_RGMII1		14
+#define MT7621_GPIO_MODE_RGMII2		15
+#define MT7621_GPIO_MODE_SPI_MASK	0x3
+#define MT7621_GPIO_MODE_SPI_SHIFT	16
+#define MT7621_GPIO_MODE_SPI_GPIO	1
+#define MT7621_GPIO_MODE_SDHCI_MASK	0x3
+#define MT7621_GPIO_MODE_SDHCI_SHIFT	18
+#define MT7621_GPIO_MODE_SDHCI_GPIO	1
+
+static struct ralink_pmx_func uart1_func[] =  { FUNC("uart1", 0, 1, 2) };
+static struct ralink_pmx_func i2c_func[] =  { FUNC("i2c", 0, 3, 2) };
+static struct ralink_pmx_func uart3_func[] = {
+	FUNC("uart3", 0, 5, 4),
+	FUNC("i2s", 2, 5, 4),
+	FUNC("spdif3", 3, 5, 4),
+};
+static struct ralink_pmx_func uart2_func[] = {
+	FUNC("uart2", 0, 9, 4),
+	FUNC("pcm", 2, 9, 4),
+	FUNC("spdif2", 3, 9, 4),
+};
+static struct ralink_pmx_func jtag_func[] = { FUNC("jtag", 0, 13, 5) };
+static struct ralink_pmx_func wdt_func[] = {
+	FUNC("wdt rst", 0, 18, 1),
+	FUNC("wdt refclk", 2, 18, 1),
+};
+static struct ralink_pmx_func pcie_rst_func[] = {
+	FUNC("pcie rst", MT7621_GPIO_MODE_PCIE_RST, 19, 1),
+	FUNC("pcie refclk", MT7621_GPIO_MODE_PCIE_REF, 19, 1)
+};
+static struct ralink_pmx_func mdio_func[] = { FUNC("mdio", 0, 20, 2) };
+static struct ralink_pmx_func rgmii2_func[] = { FUNC("rgmii2", 0, 22, 12) };
+static struct ralink_pmx_func spi_func[] = {
+	FUNC("spi", 0, 34, 7),
+	FUNC("nand1", 2, 34, 7),
+};
+static struct ralink_pmx_func sdhci_func[] = {
+	FUNC("sdhci", 0, 41, 8),
+	FUNC("nand2", 2, 41, 8),
+};
+static struct ralink_pmx_func rgmii1_func[] = { FUNC("rgmii1", 0, 49, 12) };
+
+static struct ralink_pmx_group mt7621_pinmux_data[] = {
+	GRP("uart1", uart1_func, 1, MT7621_GPIO_MODE_UART1),
+	GRP("i2c", i2c_func, 1, MT7621_GPIO_MODE_I2C),
+	GRP_G("uart3", uart3_func, MT7621_GPIO_MODE_UART3_MASK,
+		MT7621_GPIO_MODE_UART3_GPIO, MT7621_GPIO_MODE_UART3_SHIFT),
+	GRP_G("uart2", uart2_func, MT7621_GPIO_MODE_UART2_MASK,
+		MT7621_GPIO_MODE_UART2_GPIO, MT7621_GPIO_MODE_UART2_SHIFT),
+	GRP("jtag", jtag_func, 1, MT7621_GPIO_MODE_JTAG),
+	GRP_G("wdt", wdt_func, MT7621_GPIO_MODE_WDT_MASK,
+		MT7621_GPIO_MODE_WDT_GPIO, MT7621_GPIO_MODE_WDT_SHIFT),
+	GRP_G("pcie", pcie_rst_func, MT7621_GPIO_MODE_PCIE_MASK,
+		MT7621_GPIO_MODE_PCIE_GPIO, MT7621_GPIO_MODE_PCIE_SHIFT),
+	GRP_G("mdio", mdio_func, MT7621_GPIO_MODE_MDIO_MASK,
+		MT7621_GPIO_MODE_MDIO_GPIO, MT7621_GPIO_MODE_MDIO_SHIFT),
+	GRP("rgmii2", rgmii2_func, 1, MT7621_GPIO_MODE_RGMII2),
+	GRP_G("spi", spi_func, MT7621_GPIO_MODE_SPI_MASK,
+		MT7621_GPIO_MODE_SPI_GPIO, MT7621_GPIO_MODE_SPI_SHIFT),
+	GRP_G("sdhci", sdhci_func, MT7621_GPIO_MODE_SDHCI_MASK,
+		MT7621_GPIO_MODE_SDHCI_GPIO, MT7621_GPIO_MODE_SDHCI_SHIFT),
+	GRP("rgmii1", rgmii1_func, 1, MT7621_GPIO_MODE_RGMII1),
+	{ 0 }
+};
+
+static int mt7621_pinctrl_probe(struct platform_device *pdev)
+{
+	return ralink_pinctrl_init(pdev, mt7621_pinmux_data);
+}
+
+static const struct of_device_id mt7621_pinctrl_match[] = {
+	{ .compatible = "ralink,mt7621-pinctrl" },
+	{ .compatible = "ralink,rt2880-pinmux" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, mt7621_pinctrl_match);
+
+static struct platform_driver mt7621_pinctrl_driver = {
+	.probe = mt7621_pinctrl_probe,
+	.driver = {
+		.name = "mt7621-pinctrl",
+		.of_match_table = mt7621_pinctrl_match,
+	},
+};
+
+static int __init mt7621_pinctrl_init(void)
+{
+	return platform_driver_register(&mt7621_pinctrl_driver);
+}
+core_initcall_sync(mt7621_pinctrl_init);
diff --git a/drivers/pinctrl/ralink/pinctrl-ralink.c b/drivers/pinctrl/ralink/pinctrl-ralink.c
new file mode 100644
index 000000000..770862f45
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-ralink.c
@@ -0,0 +1,351 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+#include <asm/mach-ralink/mt7620.h>
+
+#include "pinctrl-ralink.h"
+#include "../core.h"
+#include "../pinctrl-utils.h"
+
+#define SYSC_REG_GPIO_MODE	0x60
+#define SYSC_REG_GPIO_MODE2	0x64
+
+struct ralink_priv {
+	struct device *dev;
+
+	struct pinctrl_pin_desc *pads;
+	struct pinctrl_desc *desc;
+
+	struct ralink_pmx_func **func;
+	int func_count;
+
+	struct ralink_pmx_group *groups;
+	const char **group_names;
+	int group_count;
+
+	u8 *gpio;
+	int max_pins;
+};
+
+static int ralink_get_group_count(struct pinctrl_dev *pctrldev)
+{
+	struct ralink_priv *p = pinctrl_dev_get_drvdata(pctrldev);
+
+	return p->group_count;
+}
+
+static const char *ralink_get_group_name(struct pinctrl_dev *pctrldev,
+					 unsigned int group)
+{
+	struct ralink_priv *p = pinctrl_dev_get_drvdata(pctrldev);
+
+	return (group >= p->group_count) ? NULL : p->group_names[group];
+}
+
+static int ralink_get_group_pins(struct pinctrl_dev *pctrldev,
+				 unsigned int group,
+				 const unsigned int **pins,
+				 unsigned int *num_pins)
+{
+	struct ralink_priv *p = pinctrl_dev_get_drvdata(pctrldev);
+
+	if (group >= p->group_count)
+		return -EINVAL;
+
+	*pins = p->groups[group].func[0].pins;
+	*num_pins = p->groups[group].func[0].pin_count;
+
+	return 0;
+}
+
+static const struct pinctrl_ops ralink_pctrl_ops = {
+	.get_groups_count	= ralink_get_group_count,
+	.get_group_name		= ralink_get_group_name,
+	.get_group_pins		= ralink_get_group_pins,
+	.dt_node_to_map		= pinconf_generic_dt_node_to_map_all,
+	.dt_free_map		= pinconf_generic_dt_free_map,
+};
+
+static int ralink_pmx_func_count(struct pinctrl_dev *pctrldev)
+{
+	struct ralink_priv *p = pinctrl_dev_get_drvdata(pctrldev);
+
+	return p->func_count;
+}
+
+static const char *ralink_pmx_func_name(struct pinctrl_dev *pctrldev,
+					unsigned int func)
+{
+	struct ralink_priv *p = pinctrl_dev_get_drvdata(pctrldev);
+
+	return p->func[func]->name;
+}
+
+static int ralink_pmx_group_get_groups(struct pinctrl_dev *pctrldev,
+				       unsigned int func,
+				       const char * const **groups,
+				       unsigned int * const num_groups)
+{
+	struct ralink_priv *p = pinctrl_dev_get_drvdata(pctrldev);
+
+	if (p->func[func]->group_count == 1)
+		*groups = &p->group_names[p->func[func]->groups[0]];
+	else
+		*groups = p->group_names;
+
+	*num_groups = p->func[func]->group_count;
+
+	return 0;
+}
+
+static int ralink_pmx_group_enable(struct pinctrl_dev *pctrldev,
+				   unsigned int func, unsigned int group)
+{
+	struct ralink_priv *p = pinctrl_dev_get_drvdata(pctrldev);
+	u32 mode = 0;
+	u32 reg = SYSC_REG_GPIO_MODE;
+	int i;
+	int shift;
+
+	/* dont allow double use */
+	if (p->groups[group].enabled) {
+		dev_err(p->dev, "%s is already enabled\n",
+			p->groups[group].name);
+		return 0;
+	}
+
+	p->groups[group].enabled = 1;
+	p->func[func]->enabled = 1;
+
+	shift = p->groups[group].shift;
+	if (shift >= 32) {
+		shift -= 32;
+		reg = SYSC_REG_GPIO_MODE2;
+	}
+	mode = rt_sysc_r32(reg);
+	mode &= ~(p->groups[group].mask << shift);
+
+	/* mark the pins as gpio */
+	for (i = 0; i < p->groups[group].func[0].pin_count; i++)
+		p->gpio[p->groups[group].func[0].pins[i]] = 1;
+
+	/* function 0 is gpio and needs special handling */
+	if (func == 0) {
+		mode |= p->groups[group].gpio << shift;
+	} else {
+		for (i = 0; i < p->func[func]->pin_count; i++)
+			p->gpio[p->func[func]->pins[i]] = 0;
+		mode |= p->func[func]->value << shift;
+	}
+	rt_sysc_w32(mode, reg);
+
+	return 0;
+}
+
+static int ralink_pmx_group_gpio_request_enable(struct pinctrl_dev *pctrldev,
+						struct pinctrl_gpio_range *range,
+						unsigned int pin)
+{
+	struct ralink_priv *p = pinctrl_dev_get_drvdata(pctrldev);
+
+	if (!p->gpio[pin]) {
+		dev_err(p->dev, "pin %d is not set to gpio mux\n", pin);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct pinmux_ops ralink_pmx_group_ops = {
+	.get_functions_count	= ralink_pmx_func_count,
+	.get_function_name	= ralink_pmx_func_name,
+	.get_function_groups	= ralink_pmx_group_get_groups,
+	.set_mux		= ralink_pmx_group_enable,
+	.gpio_request_enable	= ralink_pmx_group_gpio_request_enable,
+};
+
+static struct pinctrl_desc ralink_pctrl_desc = {
+	.owner		= THIS_MODULE,
+	.name		= "ralink-pinctrl",
+	.pctlops	= &ralink_pctrl_ops,
+	.pmxops		= &ralink_pmx_group_ops,
+};
+
+static struct ralink_pmx_func gpio_func = {
+	.name = "gpio",
+};
+
+static int ralink_pinctrl_index(struct ralink_priv *p)
+{
+	struct ralink_pmx_group *mux = p->groups;
+	int i, j, c = 0;
+
+	/* count the mux functions */
+	while (mux->name) {
+		p->group_count++;
+		mux++;
+	}
+
+	/* allocate the group names array needed by the gpio function */
+	p->group_names = devm_kcalloc(p->dev, p->group_count,
+				      sizeof(char *), GFP_KERNEL);
+	if (!p->group_names)
+		return -ENOMEM;
+
+	for (i = 0; i < p->group_count; i++) {
+		p->group_names[i] = p->groups[i].name;
+		p->func_count += p->groups[i].func_count;
+	}
+
+	/* we have a dummy function[0] for gpio */
+	p->func_count++;
+
+	/* allocate our function and group mapping index buffers */
+	p->func = devm_kcalloc(p->dev, p->func_count,
+			       sizeof(*p->func), GFP_KERNEL);
+	gpio_func.groups = devm_kcalloc(p->dev, p->group_count, sizeof(int),
+					GFP_KERNEL);
+	if (!p->func || !gpio_func.groups)
+		return -ENOMEM;
+
+	/* add a backpointer to the function so it knows its group */
+	gpio_func.group_count = p->group_count;
+	for (i = 0; i < gpio_func.group_count; i++)
+		gpio_func.groups[i] = i;
+
+	p->func[c] = &gpio_func;
+	c++;
+
+	/* add remaining functions */
+	for (i = 0; i < p->group_count; i++) {
+		for (j = 0; j < p->groups[i].func_count; j++) {
+			p->func[c] = &p->groups[i].func[j];
+			p->func[c]->groups = devm_kzalloc(p->dev, sizeof(int),
+						    GFP_KERNEL);
+			if (!p->func[c]->groups)
+				return -ENOMEM;
+			p->func[c]->groups[0] = i;
+			p->func[c]->group_count = 1;
+			c++;
+		}
+	}
+	return 0;
+}
+
+static int ralink_pinctrl_pins(struct ralink_priv *p)
+{
+	int i, j;
+
+	/*
+	 * loop over the functions and initialize the pins array.
+	 * also work out the highest pin used.
+	 */
+	for (i = 0; i < p->func_count; i++) {
+		int pin;
+
+		if (!p->func[i]->pin_count)
+			continue;
+
+		p->func[i]->pins = devm_kcalloc(p->dev,
+						p->func[i]->pin_count,
+						sizeof(int),
+						GFP_KERNEL);
+		if (!p->func[i]->pins)
+			return -ENOMEM;
+		for (j = 0; j < p->func[i]->pin_count; j++)
+			p->func[i]->pins[j] = p->func[i]->pin_first + j;
+
+		pin = p->func[i]->pin_first + p->func[i]->pin_count;
+		if (pin > p->max_pins)
+			p->max_pins = pin;
+	}
+
+	/* the buffer that tells us which pins are gpio */
+	p->gpio = devm_kcalloc(p->dev, p->max_pins, sizeof(u8), GFP_KERNEL);
+	/* the pads needed to tell pinctrl about our pins */
+	p->pads = devm_kcalloc(p->dev, p->max_pins,
+			       sizeof(struct pinctrl_pin_desc), GFP_KERNEL);
+	if (!p->pads || !p->gpio)
+		return -ENOMEM;
+
+	memset(p->gpio, 1, sizeof(u8) * p->max_pins);
+	for (i = 0; i < p->func_count; i++) {
+		if (!p->func[i]->pin_count)
+			continue;
+
+		for (j = 0; j < p->func[i]->pin_count; j++)
+			p->gpio[p->func[i]->pins[j]] = 0;
+	}
+
+	/* pin 0 is always a gpio */
+	p->gpio[0] = 1;
+
+	/* set the pads */
+	for (i = 0; i < p->max_pins; i++) {
+		/* strlen("ioXY") + 1 = 5 */
+		char *name = devm_kzalloc(p->dev, 5, GFP_KERNEL);
+
+		if (!name)
+			return -ENOMEM;
+		snprintf(name, 5, "io%d", i);
+		p->pads[i].number = i;
+		p->pads[i].name = name;
+	}
+	p->desc->pins = p->pads;
+	p->desc->npins = p->max_pins;
+
+	return 0;
+}
+
+int ralink_pinctrl_init(struct platform_device *pdev,
+			struct ralink_pmx_group *data)
+{
+	struct ralink_priv *p;
+	struct pinctrl_dev *dev;
+	int err;
+
+	if (!data)
+		return -ENOTSUPP;
+
+	/* setup the private data */
+	p = devm_kzalloc(&pdev->dev, sizeof(struct ralink_priv), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	p->dev = &pdev->dev;
+	p->desc = &ralink_pctrl_desc;
+	p->groups = data;
+	platform_set_drvdata(pdev, p);
+
+	/* init the device */
+	err = ralink_pinctrl_index(p);
+	if (err) {
+		dev_err(&pdev->dev, "failed to load index\n");
+		return err;
+	}
+
+	err = ralink_pinctrl_pins(p);
+	if (err) {
+		dev_err(&pdev->dev, "failed to load pins\n");
+		return err;
+	}
+	dev = pinctrl_register(p->desc, &pdev->dev, p);
+
+	return PTR_ERR_OR_ZERO(dev);
+}
diff --git a/drivers/pinctrl/ralink/pinctrl-ralink.h b/drivers/pinctrl/ralink/pinctrl-ralink.h
new file mode 100644
index 000000000..e6037be1e
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-ralink.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  Copyright (C) 2012 John Crispin <john@phrozen.org>
+ */
+
+#ifndef _PINCTRL_RALINK_H__
+#define _PINCTRL_RALINK_H__
+
+#define FUNC(name, value, pin_first, pin_count) \
+	{ name, value, pin_first, pin_count }
+
+#define GRP(_name, _func, _mask, _shift) \
+	{ .name = _name, .mask = _mask, .shift = _shift, \
+	  .func = _func, .gpio = _mask, \
+	  .func_count = ARRAY_SIZE(_func) }
+
+#define GRP_G(_name, _func, _mask, _gpio, _shift) \
+	{ .name = _name, .mask = _mask, .shift = _shift, \
+	  .func = _func, .gpio = _gpio, \
+	  .func_count = ARRAY_SIZE(_func) }
+
+struct ralink_pmx_group;
+
+struct ralink_pmx_func {
+	const char *name;
+	const char value;
+
+	int pin_first;
+	int pin_count;
+	int *pins;
+
+	int *groups;
+	int group_count;
+
+	int enabled;
+};
+
+struct ralink_pmx_group {
+	const char *name;
+	int enabled;
+
+	const u32 shift;
+	const char mask;
+	const char gpio;
+
+	struct ralink_pmx_func *func;
+	int func_count;
+};
+
+int ralink_pinctrl_init(struct platform_device *pdev,
+			struct ralink_pmx_group *data);
+
+#endif
diff --git a/drivers/pinctrl/ralink/pinctrl-rt2880.c b/drivers/pinctrl/ralink/pinctrl-rt2880.c
new file mode 100644
index 000000000..fd9af7c2f
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-rt2880.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include "pinctrl-ralink.h"
+
+#define RT2880_GPIO_MODE_I2C		BIT(0)
+#define RT2880_GPIO_MODE_UART0		BIT(1)
+#define RT2880_GPIO_MODE_SPI		BIT(2)
+#define RT2880_GPIO_MODE_UART1		BIT(3)
+#define RT2880_GPIO_MODE_JTAG		BIT(4)
+#define RT2880_GPIO_MODE_MDIO		BIT(5)
+#define RT2880_GPIO_MODE_SDRAM		BIT(6)
+#define RT2880_GPIO_MODE_PCI		BIT(7)
+
+static struct ralink_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) };
+static struct ralink_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
+static struct ralink_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 7, 8) };
+static struct ralink_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
+static struct ralink_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
+static struct ralink_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) };
+static struct ralink_pmx_func pci_func[] = { FUNC("pci", 0, 40, 32) };
+
+static struct ralink_pmx_group rt2880_pinmux_data_act[] = {
+	GRP("i2c", i2c_func, 1, RT2880_GPIO_MODE_I2C),
+	GRP("spi", spi_func, 1, RT2880_GPIO_MODE_SPI),
+	GRP("uartlite", uartlite_func, 1, RT2880_GPIO_MODE_UART0),
+	GRP("jtag", jtag_func, 1, RT2880_GPIO_MODE_JTAG),
+	GRP("mdio", mdio_func, 1, RT2880_GPIO_MODE_MDIO),
+	GRP("sdram", sdram_func, 1, RT2880_GPIO_MODE_SDRAM),
+	GRP("pci", pci_func, 1, RT2880_GPIO_MODE_PCI),
+	{ 0 }
+};
+
+static int rt2880_pinctrl_probe(struct platform_device *pdev)
+{
+	return ralink_pinctrl_init(pdev, rt2880_pinmux_data_act);
+}
+
+static const struct of_device_id rt2880_pinctrl_match[] = {
+	{ .compatible = "ralink,rt2880-pinctrl" },
+	{ .compatible = "ralink,rt2880-pinmux" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, rt2880_pinctrl_match);
+
+static struct platform_driver rt2880_pinctrl_driver = {
+	.probe = rt2880_pinctrl_probe,
+	.driver = {
+		.name = "rt2880-pinctrl",
+		.of_match_table = rt2880_pinctrl_match,
+	},
+};
+
+static int __init rt2880_pinctrl_init(void)
+{
+	return platform_driver_register(&rt2880_pinctrl_driver);
+}
+core_initcall_sync(rt2880_pinctrl_init);
diff --git a/drivers/pinctrl/ralink/pinctrl-rt305x.c b/drivers/pinctrl/ralink/pinctrl-rt305x.c
new file mode 100644
index 000000000..13a012a65
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-rt305x.c
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <asm/mach-ralink/ralink_regs.h>
+#include <asm/mach-ralink/rt305x.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include "pinctrl-ralink.h"
+
+#define RT305X_GPIO_MODE_UART0_SHIFT	2
+#define RT305X_GPIO_MODE_UART0_MASK	0x7
+#define RT305X_GPIO_MODE_UART0(x)	((x) << RT305X_GPIO_MODE_UART0_SHIFT)
+#define RT305X_GPIO_MODE_UARTF		0
+#define RT305X_GPIO_MODE_PCM_UARTF	1
+#define RT305X_GPIO_MODE_PCM_I2S	2
+#define RT305X_GPIO_MODE_I2S_UARTF	3
+#define RT305X_GPIO_MODE_PCM_GPIO	4
+#define RT305X_GPIO_MODE_GPIO_UARTF	5
+#define RT305X_GPIO_MODE_GPIO_I2S	6
+#define RT305X_GPIO_MODE_GPIO		7
+
+#define RT305X_GPIO_MODE_I2C		0
+#define RT305X_GPIO_MODE_SPI		1
+#define RT305X_GPIO_MODE_UART1		5
+#define RT305X_GPIO_MODE_JTAG		6
+#define RT305X_GPIO_MODE_MDIO		7
+#define RT305X_GPIO_MODE_SDRAM		8
+#define RT305X_GPIO_MODE_RGMII		9
+#define RT5350_GPIO_MODE_PHY_LED	14
+#define RT5350_GPIO_MODE_SPI_CS1	21
+#define RT3352_GPIO_MODE_LNA		18
+#define RT3352_GPIO_MODE_PA		20
+
+static struct ralink_pmx_func i2c_func[] =  { FUNC("i2c", 0, 1, 2) };
+static struct ralink_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
+static struct ralink_pmx_func uartf_func[] = {
+	FUNC("uartf", RT305X_GPIO_MODE_UARTF, 7, 8),
+	FUNC("pcm uartf", RT305X_GPIO_MODE_PCM_UARTF, 7, 8),
+	FUNC("pcm i2s", RT305X_GPIO_MODE_PCM_I2S, 7, 8),
+	FUNC("i2s uartf", RT305X_GPIO_MODE_I2S_UARTF, 7, 8),
+	FUNC("pcm gpio", RT305X_GPIO_MODE_PCM_GPIO, 11, 4),
+	FUNC("gpio uartf", RT305X_GPIO_MODE_GPIO_UARTF, 7, 4),
+	FUNC("gpio i2s", RT305X_GPIO_MODE_GPIO_I2S, 7, 4),
+};
+static struct ralink_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) };
+static struct ralink_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
+static struct ralink_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
+static struct ralink_pmx_func rt5350_led_func[] = { FUNC("led", 0, 22, 5) };
+static struct ralink_pmx_func rt5350_cs1_func[] = {
+	FUNC("spi_cs1", 0, 27, 1),
+	FUNC("wdg_cs1", 1, 27, 1),
+};
+static struct ralink_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) };
+static struct ralink_pmx_func rt3352_rgmii_func[] = {
+	FUNC("rgmii", 0, 24, 12)
+};
+static struct ralink_pmx_func rgmii_func[] = { FUNC("rgmii", 0, 40, 12) };
+static struct ralink_pmx_func rt3352_lna_func[] = { FUNC("lna", 0, 36, 2) };
+static struct ralink_pmx_func rt3352_pa_func[] = { FUNC("pa", 0, 38, 2) };
+static struct ralink_pmx_func rt3352_led_func[] = { FUNC("led", 0, 40, 5) };
+static struct ralink_pmx_func rt3352_cs1_func[] = {
+	FUNC("spi_cs1", 0, 45, 1),
+	FUNC("wdg_cs1", 1, 45, 1),
+};
+
+static struct ralink_pmx_group rt3050_pinmux_data[] = {
+	GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
+	GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
+	GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
+		RT305X_GPIO_MODE_UART0_SHIFT),
+	GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
+	GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
+	GRP("mdio", mdio_func, 1, RT305X_GPIO_MODE_MDIO),
+	GRP("rgmii", rgmii_func, 1, RT305X_GPIO_MODE_RGMII),
+	GRP("sdram", sdram_func, 1, RT305X_GPIO_MODE_SDRAM),
+	{ 0 }
+};
+
+static struct ralink_pmx_group rt3352_pinmux_data[] = {
+	GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
+	GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
+	GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
+		RT305X_GPIO_MODE_UART0_SHIFT),
+	GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
+	GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
+	GRP("mdio", mdio_func, 1, RT305X_GPIO_MODE_MDIO),
+	GRP("rgmii", rt3352_rgmii_func, 1, RT305X_GPIO_MODE_RGMII),
+	GRP("lna", rt3352_lna_func, 1, RT3352_GPIO_MODE_LNA),
+	GRP("pa", rt3352_pa_func, 1, RT3352_GPIO_MODE_PA),
+	GRP("led", rt3352_led_func, 1, RT5350_GPIO_MODE_PHY_LED),
+	GRP("spi_cs1", rt3352_cs1_func, 2, RT5350_GPIO_MODE_SPI_CS1),
+	{ 0 }
+};
+
+static struct ralink_pmx_group rt5350_pinmux_data[] = {
+	GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
+	GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
+	GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
+		RT305X_GPIO_MODE_UART0_SHIFT),
+	GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
+	GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
+	GRP("led", rt5350_led_func, 1, RT5350_GPIO_MODE_PHY_LED),
+	GRP("spi_cs1", rt5350_cs1_func, 2, RT5350_GPIO_MODE_SPI_CS1),
+	{ 0 }
+};
+
+static int rt305x_pinctrl_probe(struct platform_device *pdev)
+{
+	if (soc_is_rt5350())
+		return ralink_pinctrl_init(pdev, rt5350_pinmux_data);
+	else if (soc_is_rt305x() || soc_is_rt3350())
+		return ralink_pinctrl_init(pdev, rt3050_pinmux_data);
+	else if (soc_is_rt3352())
+		return ralink_pinctrl_init(pdev, rt3352_pinmux_data);
+	else
+		return -EINVAL;
+}
+
+static const struct of_device_id rt305x_pinctrl_match[] = {
+	{ .compatible = "ralink,rt305x-pinctrl" },
+	{ .compatible = "ralink,rt2880-pinmux" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, rt305x_pinctrl_match);
+
+static struct platform_driver rt305x_pinctrl_driver = {
+	.probe = rt305x_pinctrl_probe,
+	.driver = {
+		.name = "rt305x-pinctrl",
+		.of_match_table = rt305x_pinctrl_match,
+	},
+};
+
+static int __init rt305x_pinctrl_init(void)
+{
+	return platform_driver_register(&rt305x_pinctrl_driver);
+}
+core_initcall_sync(rt305x_pinctrl_init);
diff --git a/drivers/pinctrl/ralink/pinctrl-rt3883.c b/drivers/pinctrl/ralink/pinctrl-rt3883.c
new file mode 100644
index 000000000..b26376401
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-rt3883.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include "pinctrl-ralink.h"
+
+#define RT3883_GPIO_MODE_UART0_SHIFT	2
+#define RT3883_GPIO_MODE_UART0_MASK	0x7
+#define RT3883_GPIO_MODE_UART0(x)	((x) << RT3883_GPIO_MODE_UART0_SHIFT)
+#define RT3883_GPIO_MODE_UARTF		0x0
+#define RT3883_GPIO_MODE_PCM_UARTF	0x1
+#define RT3883_GPIO_MODE_PCM_I2S	0x2
+#define RT3883_GPIO_MODE_I2S_UARTF	0x3
+#define RT3883_GPIO_MODE_PCM_GPIO	0x4
+#define RT3883_GPIO_MODE_GPIO_UARTF	0x5
+#define RT3883_GPIO_MODE_GPIO_I2S	0x6
+#define RT3883_GPIO_MODE_GPIO		0x7
+
+#define RT3883_GPIO_MODE_I2C		0
+#define RT3883_GPIO_MODE_SPI		1
+#define RT3883_GPIO_MODE_UART1		5
+#define RT3883_GPIO_MODE_JTAG		6
+#define RT3883_GPIO_MODE_MDIO		7
+#define RT3883_GPIO_MODE_GE1		9
+#define RT3883_GPIO_MODE_GE2		10
+
+#define RT3883_GPIO_MODE_PCI_SHIFT	11
+#define RT3883_GPIO_MODE_PCI_MASK	0x7
+#define RT3883_GPIO_MODE_PCI		(RT3883_GPIO_MODE_PCI_MASK << RT3883_GPIO_MODE_PCI_SHIFT)
+#define RT3883_GPIO_MODE_LNA_A_SHIFT	16
+#define RT3883_GPIO_MODE_LNA_A_MASK	0x3
+#define _RT3883_GPIO_MODE_LNA_A(_x)	((_x) << RT3883_GPIO_MODE_LNA_A_SHIFT)
+#define RT3883_GPIO_MODE_LNA_A_GPIO	0x3
+#define RT3883_GPIO_MODE_LNA_A		_RT3883_GPIO_MODE_LNA_A(RT3883_GPIO_MODE_LNA_A_MASK)
+#define RT3883_GPIO_MODE_LNA_G_SHIFT	18
+#define RT3883_GPIO_MODE_LNA_G_MASK	0x3
+#define _RT3883_GPIO_MODE_LNA_G(_x)	((_x) << RT3883_GPIO_MODE_LNA_G_SHIFT)
+#define RT3883_GPIO_MODE_LNA_G_GPIO	0x3
+#define RT3883_GPIO_MODE_LNA_G		_RT3883_GPIO_MODE_LNA_G(RT3883_GPIO_MODE_LNA_G_MASK)
+
+static struct ralink_pmx_func i2c_func[] =  { FUNC("i2c", 0, 1, 2) };
+static struct ralink_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
+static struct ralink_pmx_func uartf_func[] = {
+	FUNC("uartf", RT3883_GPIO_MODE_UARTF, 7, 8),
+	FUNC("pcm uartf", RT3883_GPIO_MODE_PCM_UARTF, 7, 8),
+	FUNC("pcm i2s", RT3883_GPIO_MODE_PCM_I2S, 7, 8),
+	FUNC("i2s uartf", RT3883_GPIO_MODE_I2S_UARTF, 7, 8),
+	FUNC("pcm gpio", RT3883_GPIO_MODE_PCM_GPIO, 11, 4),
+	FUNC("gpio uartf", RT3883_GPIO_MODE_GPIO_UARTF, 7, 4),
+	FUNC("gpio i2s", RT3883_GPIO_MODE_GPIO_I2S, 7, 4),
+};
+static struct ralink_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) };
+static struct ralink_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
+static struct ralink_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
+static struct ralink_pmx_func lna_a_func[] = { FUNC("lna a", 0, 32, 3) };
+static struct ralink_pmx_func lna_g_func[] = { FUNC("lna g", 0, 35, 3) };
+static struct ralink_pmx_func pci_func[] = {
+	FUNC("pci-dev", 0, 40, 32),
+	FUNC("pci-host2", 1, 40, 32),
+	FUNC("pci-host1", 2, 40, 32),
+	FUNC("pci-fnc", 3, 40, 32)
+};
+static struct ralink_pmx_func ge1_func[] = { FUNC("ge1", 0, 72, 12) };
+static struct ralink_pmx_func ge2_func[] = { FUNC("ge2", 0, 84, 12) };
+
+static struct ralink_pmx_group rt3883_pinmux_data[] = {
+	GRP("i2c", i2c_func, 1, RT3883_GPIO_MODE_I2C),
+	GRP("spi", spi_func, 1, RT3883_GPIO_MODE_SPI),
+	GRP("uartf", uartf_func, RT3883_GPIO_MODE_UART0_MASK,
+		RT3883_GPIO_MODE_UART0_SHIFT),
+	GRP("uartlite", uartlite_func, 1, RT3883_GPIO_MODE_UART1),
+	GRP("jtag", jtag_func, 1, RT3883_GPIO_MODE_JTAG),
+	GRP("mdio", mdio_func, 1, RT3883_GPIO_MODE_MDIO),
+	GRP("lna a", lna_a_func, 1, RT3883_GPIO_MODE_LNA_A),
+	GRP("lna g", lna_g_func, 1, RT3883_GPIO_MODE_LNA_G),
+	GRP("pci", pci_func, RT3883_GPIO_MODE_PCI_MASK,
+		RT3883_GPIO_MODE_PCI_SHIFT),
+	GRP("ge1", ge1_func, 1, RT3883_GPIO_MODE_GE1),
+	GRP("ge2", ge2_func, 1, RT3883_GPIO_MODE_GE2),
+	{ 0 }
+};
+
+static int rt3883_pinctrl_probe(struct platform_device *pdev)
+{
+	return ralink_pinctrl_init(pdev, rt3883_pinmux_data);
+}
+
+static const struct of_device_id rt3883_pinctrl_match[] = {
+	{ .compatible = "ralink,rt3883-pinctrl" },
+	{ .compatible = "ralink,rt2880-pinmux" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, rt3883_pinctrl_match);
+
+static struct platform_driver rt3883_pinctrl_driver = {
+	.probe = rt3883_pinctrl_probe,
+	.driver = {
+		.name = "rt3883-pinctrl",
+		.of_match_table = rt3883_pinctrl_match,
+	},
+};
+
+static int __init rt3883_pinctrl_init(void)
+{
+	return platform_driver_register(&rt3883_pinctrl_driver);
+}
+core_initcall_sync(rt3883_pinctrl_init);