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  1// SPDX-License-Identifier: GPL-2.0-only
  2
  3#include <linux/module.h>
  4#include <linux/platform_device.h>
  5#include <linux/of.h>
  6#include "pinctrl-mtmips.h"
  7
  8#define MT7621_GPIO_MODE_UART1		1
  9#define MT7621_GPIO_MODE_I2C		2
 10#define MT7621_GPIO_MODE_UART3_MASK	0x3
 11#define MT7621_GPIO_MODE_UART3_SHIFT	3
 12#define MT7621_GPIO_MODE_UART3_GPIO	1
 13#define MT7621_GPIO_MODE_UART2_MASK	0x3
 14#define MT7621_GPIO_MODE_UART2_SHIFT	5
 15#define MT7621_GPIO_MODE_UART2_GPIO	1
 16#define MT7621_GPIO_MODE_JTAG		7
 17#define MT7621_GPIO_MODE_WDT_MASK	0x3
 18#define MT7621_GPIO_MODE_WDT_SHIFT	8
 19#define MT7621_GPIO_MODE_WDT_GPIO	1
 20#define MT7621_GPIO_MODE_PCIE_RST	0
 21#define MT7621_GPIO_MODE_PCIE_REF	2
 22#define MT7621_GPIO_MODE_PCIE_MASK	0x3
 23#define MT7621_GPIO_MODE_PCIE_SHIFT	10
 24#define MT7621_GPIO_MODE_PCIE_GPIO	1
 25#define MT7621_GPIO_MODE_MDIO_MASK	0x3
 26#define MT7621_GPIO_MODE_MDIO_SHIFT	12
 27#define MT7621_GPIO_MODE_MDIO_GPIO	1
 28#define MT7621_GPIO_MODE_RGMII1		14
 29#define MT7621_GPIO_MODE_RGMII2		15
 30#define MT7621_GPIO_MODE_SPI_MASK	0x3
 31#define MT7621_GPIO_MODE_SPI_SHIFT	16
 32#define MT7621_GPIO_MODE_SPI_GPIO	1
 33#define MT7621_GPIO_MODE_SDHCI_MASK	0x3
 34#define MT7621_GPIO_MODE_SDHCI_SHIFT	18
 35#define MT7621_GPIO_MODE_SDHCI_GPIO	1
 36
 37static struct mtmips_pmx_func uart1_grp[] =  { FUNC("uart1", 0, 1, 2) };
 38static struct mtmips_pmx_func i2c_grp[] =  { FUNC("i2c", 0, 3, 2) };
 39static struct mtmips_pmx_func uart3_grp[] = {
 40	FUNC("uart3", 0, 5, 4),
 41	FUNC("i2s", 2, 5, 4),
 42	FUNC("spdif3", 3, 5, 4),
 43};
 44static struct mtmips_pmx_func uart2_grp[] = {
 45	FUNC("uart2", 0, 9, 4),
 46	FUNC("pcm", 2, 9, 4),
 47	FUNC("spdif2", 3, 9, 4),
 48};
 49static struct mtmips_pmx_func jtag_grp[] = { FUNC("jtag", 0, 13, 5) };
 50static struct mtmips_pmx_func wdt_grp[] = {
 51	FUNC("wdt rst", 0, 18, 1),
 52	FUNC("wdt refclk", 2, 18, 1),
 53};
 54static struct mtmips_pmx_func pcie_rst_grp[] = {
 55	FUNC("pcie rst", MT7621_GPIO_MODE_PCIE_RST, 19, 1),
 56	FUNC("pcie refclk", MT7621_GPIO_MODE_PCIE_REF, 19, 1)
 57};
 58static struct mtmips_pmx_func mdio_grp[] = { FUNC("mdio", 0, 20, 2) };
 59static struct mtmips_pmx_func rgmii2_grp[] = { FUNC("rgmii2", 0, 22, 12) };
 60static struct mtmips_pmx_func spi_grp[] = {
 61	FUNC("spi", 0, 34, 7),
 62	FUNC("nand1", 2, 34, 7),
 63};
 64static struct mtmips_pmx_func sdhci_grp[] = {
 65	FUNC("sdhci", 0, 41, 8),
 66	FUNC("nand2", 2, 41, 8),
 67};
 68static struct mtmips_pmx_func rgmii1_grp[] = { FUNC("rgmii1", 0, 49, 12) };
 69
 70static struct mtmips_pmx_group mt7621_pinmux_data[] = {
 71	GRP("uart1", uart1_grp, 1, MT7621_GPIO_MODE_UART1),
 72	GRP("i2c", i2c_grp, 1, MT7621_GPIO_MODE_I2C),
 73	GRP_G("uart3", uart3_grp, MT7621_GPIO_MODE_UART3_MASK,
 74		MT7621_GPIO_MODE_UART3_GPIO, MT7621_GPIO_MODE_UART3_SHIFT),
 75	GRP_G("uart2", uart2_grp, MT7621_GPIO_MODE_UART2_MASK,
 76		MT7621_GPIO_MODE_UART2_GPIO, MT7621_GPIO_MODE_UART2_SHIFT),
 77	GRP("jtag", jtag_grp, 1, MT7621_GPIO_MODE_JTAG),
 78	GRP_G("wdt", wdt_grp, MT7621_GPIO_MODE_WDT_MASK,
 79		MT7621_GPIO_MODE_WDT_GPIO, MT7621_GPIO_MODE_WDT_SHIFT),
 80	GRP_G("pcie", pcie_rst_grp, MT7621_GPIO_MODE_PCIE_MASK,
 81		MT7621_GPIO_MODE_PCIE_GPIO, MT7621_GPIO_MODE_PCIE_SHIFT),
 82	GRP_G("mdio", mdio_grp, MT7621_GPIO_MODE_MDIO_MASK,
 83		MT7621_GPIO_MODE_MDIO_GPIO, MT7621_GPIO_MODE_MDIO_SHIFT),
 84	GRP("rgmii2", rgmii2_grp, 1, MT7621_GPIO_MODE_RGMII2),
 85	GRP_G("spi", spi_grp, MT7621_GPIO_MODE_SPI_MASK,
 86		MT7621_GPIO_MODE_SPI_GPIO, MT7621_GPIO_MODE_SPI_SHIFT),
 87	GRP_G("sdhci", sdhci_grp, MT7621_GPIO_MODE_SDHCI_MASK,
 88		MT7621_GPIO_MODE_SDHCI_GPIO, MT7621_GPIO_MODE_SDHCI_SHIFT),
 89	GRP("rgmii1", rgmii1_grp, 1, MT7621_GPIO_MODE_RGMII1),
 90	{ 0 }
 91};
 92
 93static int mt7621_pinctrl_probe(struct platform_device *pdev)
 94{
 95	return mtmips_pinctrl_init(pdev, mt7621_pinmux_data);
 96}
 97
 98static const struct of_device_id mt7621_pinctrl_match[] = {
 99	{ .compatible = "ralink,mt7621-pinctrl" },
100	{ .compatible = "ralink,rt2880-pinmux" },
101	{}
102};
103MODULE_DEVICE_TABLE(of, mt7621_pinctrl_match);
104
105static struct platform_driver mt7621_pinctrl_driver = {
106	.probe = mt7621_pinctrl_probe,
107	.driver = {
108		.name = "mt7621-pinctrl",
109		.of_match_table = mt7621_pinctrl_match,
110	},
111};
112
113static int __init mt7621_pinctrl_init(void)
114{
115	return platform_driver_register(&mt7621_pinctrl_driver);
116}
117core_initcall_sync(mt7621_pinctrl_init);