1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/pinctrl/ralink/pinctrl-rt288x.c b/drivers/pinctrl/ralink/pinctrl-rt288x.c
new file mode 100644
index 000000000000..0744aebbace5
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-rt288x.c
@@ -0,0 +1,60 @@
+// 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 "pinmux.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 rt2880_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) };
+static struct rt2880_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
+static struct rt2880_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 7, 8) };
+static struct rt2880_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
+static struct rt2880_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
+static struct rt2880_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) };
+static struct rt2880_pmx_func pci_func[] = { FUNC("pci", 0, 40, 32) };
+
+static struct rt2880_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 rt288x_pinmux_probe(struct platform_device *pdev)
+{
+	return rt2880_pinmux_init(pdev, rt2880_pinmux_data_act);
+}
+
+static const struct of_device_id rt288x_pinmux_match[] = {
+	{ .compatible = "ralink,rt2880-pinmux" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, rt288x_pinmux_match);
+
+static struct platform_driver rt288x_pinmux_driver = {
+	.probe = rt288x_pinmux_probe,
+	.driver = {
+		.name = "rt2880-pinmux",
+		.of_match_table = rt288x_pinmux_match,
+	},
+};
+
+static int __init rt288x_pinmux_init(void)
+{
+	return platform_driver_register(&rt288x_pinmux_driver);
+}
+core_initcall_sync(rt288x_pinmux_init);