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Diffstat (limited to 'drivers/pinctrl/ralink/pinctrl-rt2880.c')
-rw-r--r--drivers/pinctrl/ralink/pinctrl-rt2880.c61
1 files changed, 61 insertions, 0 deletions
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);