diff options
Diffstat (limited to 'drivers/pinctrl/ralink/pinctrl-mt7621.c')
| -rw-r--r-- | drivers/pinctrl/ralink/pinctrl-mt7621.c | 117 |
1 files changed, 117 insertions, 0 deletions
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); |