138 lines
4.9 KiB
C
138 lines
4.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/of.h>
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#include "pinctrl-mtmips.h"
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#define MT7620_GPIO_MODE_UART0_SHIFT 2
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#define MT7620_GPIO_MODE_UART0_MASK 0x7
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#define MT7620_GPIO_MODE_UART0(x) ((x) << MT7620_GPIO_MODE_UART0_SHIFT)
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#define MT7620_GPIO_MODE_UARTF 0x0
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#define MT7620_GPIO_MODE_PCM_UARTF 0x1
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#define MT7620_GPIO_MODE_PCM_I2S 0x2
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#define MT7620_GPIO_MODE_I2S_UARTF 0x3
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#define MT7620_GPIO_MODE_PCM_GPIO 0x4
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#define MT7620_GPIO_MODE_GPIO_UARTF 0x5
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#define MT7620_GPIO_MODE_GPIO_I2S 0x6
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#define MT7620_GPIO_MODE_GPIO 0x7
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#define MT7620_GPIO_MODE_NAND 0
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#define MT7620_GPIO_MODE_SD 1
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#define MT7620_GPIO_MODE_ND_SD_GPIO 2
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#define MT7620_GPIO_MODE_ND_SD_MASK 0x3
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#define MT7620_GPIO_MODE_ND_SD_SHIFT 18
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#define MT7620_GPIO_MODE_PCIE_RST 0
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#define MT7620_GPIO_MODE_PCIE_REF 1
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#define MT7620_GPIO_MODE_PCIE_GPIO 2
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#define MT7620_GPIO_MODE_PCIE_MASK 0x3
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#define MT7620_GPIO_MODE_PCIE_SHIFT 16
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#define MT7620_GPIO_MODE_WDT_RST 0
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#define MT7620_GPIO_MODE_WDT_REF 1
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#define MT7620_GPIO_MODE_WDT_GPIO 2
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#define MT7620_GPIO_MODE_WDT_MASK 0x3
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#define MT7620_GPIO_MODE_WDT_SHIFT 21
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#define MT7620_GPIO_MODE_MDIO 0
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#define MT7620_GPIO_MODE_MDIO_REFCLK 1
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#define MT7620_GPIO_MODE_MDIO_GPIO 2
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#define MT7620_GPIO_MODE_MDIO_MASK 0x3
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#define MT7620_GPIO_MODE_MDIO_SHIFT 7
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#define MT7620_GPIO_MODE_I2C 0
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#define MT7620_GPIO_MODE_UART1 5
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#define MT7620_GPIO_MODE_RGMII1 9
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#define MT7620_GPIO_MODE_RGMII2 10
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#define MT7620_GPIO_MODE_SPI 11
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#define MT7620_GPIO_MODE_SPI_REF_CLK 12
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#define MT7620_GPIO_MODE_WLED 13
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#define MT7620_GPIO_MODE_JTAG 15
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#define MT7620_GPIO_MODE_EPHY 15
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#define MT7620_GPIO_MODE_PA 20
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static struct mtmips_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) };
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static struct mtmips_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) };
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static struct mtmips_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 15, 2) };
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static struct mtmips_pmx_func mdio_grp[] = {
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FUNC("mdio", MT7620_GPIO_MODE_MDIO, 22, 2),
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FUNC("refclk", MT7620_GPIO_MODE_MDIO_REFCLK, 22, 2),
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};
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static struct mtmips_pmx_func rgmii1_grp[] = { FUNC("rgmii1", 0, 24, 12) };
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static struct mtmips_pmx_func refclk_grp[] = { FUNC("spi refclk", 0, 37, 3) };
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static struct mtmips_pmx_func ephy_grp[] = { FUNC("ephy", 0, 40, 5) };
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static struct mtmips_pmx_func rgmii2_grp[] = { FUNC("rgmii2", 0, 60, 12) };
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static struct mtmips_pmx_func wled_grp[] = { FUNC("wled", 0, 72, 1) };
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static struct mtmips_pmx_func pa_grp[] = { FUNC("pa", 0, 18, 4) };
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static struct mtmips_pmx_func uartf_grp[] = {
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FUNC("uartf", MT7620_GPIO_MODE_UARTF, 7, 8),
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FUNC("pcm uartf", MT7620_GPIO_MODE_PCM_UARTF, 7, 8),
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FUNC("pcm i2s", MT7620_GPIO_MODE_PCM_I2S, 7, 8),
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FUNC("i2s uartf", MT7620_GPIO_MODE_I2S_UARTF, 7, 8),
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FUNC("pcm gpio", MT7620_GPIO_MODE_PCM_GPIO, 11, 4),
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FUNC("gpio uartf", MT7620_GPIO_MODE_GPIO_UARTF, 7, 4),
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FUNC("gpio i2s", MT7620_GPIO_MODE_GPIO_I2S, 7, 4),
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};
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static struct mtmips_pmx_func wdt_grp[] = {
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FUNC("wdt rst", 0, 17, 1),
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FUNC("wdt refclk", 0, 17, 1),
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};
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static struct mtmips_pmx_func pcie_rst_grp[] = {
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FUNC("pcie rst", MT7620_GPIO_MODE_PCIE_RST, 36, 1),
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FUNC("pcie refclk", MT7620_GPIO_MODE_PCIE_REF, 36, 1)
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};
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static struct mtmips_pmx_func nd_sd_grp[] = {
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FUNC("nand", MT7620_GPIO_MODE_NAND, 45, 15),
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FUNC("sd", MT7620_GPIO_MODE_SD, 47, 13)
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};
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static struct mtmips_pmx_group mt7620a_pinmux_data[] = {
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GRP("i2c", i2c_grp, 1, MT7620_GPIO_MODE_I2C),
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GRP("uartf", uartf_grp, MT7620_GPIO_MODE_UART0_MASK,
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MT7620_GPIO_MODE_UART0_SHIFT),
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GRP("spi", spi_grp, 1, MT7620_GPIO_MODE_SPI),
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GRP("uartlite", uartlite_grp, 1, MT7620_GPIO_MODE_UART1),
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GRP_G("wdt", wdt_grp, MT7620_GPIO_MODE_WDT_MASK,
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MT7620_GPIO_MODE_WDT_GPIO, MT7620_GPIO_MODE_WDT_SHIFT),
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GRP_G("mdio", mdio_grp, MT7620_GPIO_MODE_MDIO_MASK,
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MT7620_GPIO_MODE_MDIO_GPIO, MT7620_GPIO_MODE_MDIO_SHIFT),
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GRP("rgmii1", rgmii1_grp, 1, MT7620_GPIO_MODE_RGMII1),
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GRP("spi refclk", refclk_grp, 1, MT7620_GPIO_MODE_SPI_REF_CLK),
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GRP_G("pcie", pcie_rst_grp, MT7620_GPIO_MODE_PCIE_MASK,
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MT7620_GPIO_MODE_PCIE_GPIO, MT7620_GPIO_MODE_PCIE_SHIFT),
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GRP_G("nd_sd", nd_sd_grp, MT7620_GPIO_MODE_ND_SD_MASK,
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MT7620_GPIO_MODE_ND_SD_GPIO, MT7620_GPIO_MODE_ND_SD_SHIFT),
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GRP("rgmii2", rgmii2_grp, 1, MT7620_GPIO_MODE_RGMII2),
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GRP("wled", wled_grp, 1, MT7620_GPIO_MODE_WLED),
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GRP("ephy", ephy_grp, 1, MT7620_GPIO_MODE_EPHY),
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GRP("pa", pa_grp, 1, MT7620_GPIO_MODE_PA),
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{ 0 }
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};
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static int mt7620_pinctrl_probe(struct platform_device *pdev)
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{
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return mtmips_pinctrl_init(pdev, mt7620a_pinmux_data);
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}
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static const struct of_device_id mt7620_pinctrl_match[] = {
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{ .compatible = "ralink,mt7620-pinctrl" },
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{ .compatible = "ralink,rt2880-pinmux" },
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{}
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};
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MODULE_DEVICE_TABLE(of, mt7620_pinctrl_match);
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static struct platform_driver mt7620_pinctrl_driver = {
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.probe = mt7620_pinctrl_probe,
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.driver = {
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.name = "mt7620-pinctrl",
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.of_match_table = mt7620_pinctrl_match,
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},
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};
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static int __init mt7620_pinctrl_init(void)
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{
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return platform_driver_register(&mt7620_pinctrl_driver);
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}
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core_initcall_sync(mt7620_pinctrl_init);
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