1 // SPDX-License-Identifier: GPL-2.0-only 2 3 #include <asm/mach-ralink/ralink_regs.h> 4 #include <asm/mach-ralink/rt305x.h> 5 #include <linux/module.h> 6 #include <linux/platform_device.h> 7 #include <linux/of.h> 8 #include "pinctrl-mtmips.h" 9 10 #define RT305X_GPIO_MODE_UART0_SHIFT 2 11 #define RT305X_GPIO_MODE_UART0_MASK 0x7 12 #define RT305X_GPIO_MODE_UART0(x) ((x) << RT305X_GPIO_MODE_UART0_SHIFT) 13 #define RT305X_GPIO_MODE_UARTF 0 14 #define RT305X_GPIO_MODE_PCM_UARTF 1 15 #define RT305X_GPIO_MODE_PCM_I2S 2 16 #define RT305X_GPIO_MODE_I2S_UARTF 3 17 #define RT305X_GPIO_MODE_PCM_GPIO 4 18 #define RT305X_GPIO_MODE_GPIO_UARTF 5 19 #define RT305X_GPIO_MODE_GPIO_I2S 6 20 #define RT305X_GPIO_MODE_GPIO 7 21 22 #define RT305X_GPIO_MODE_I2C 0 23 #define RT305X_GPIO_MODE_SPI 1 24 #define RT305X_GPIO_MODE_UART1 5 25 #define RT305X_GPIO_MODE_JTAG 6 26 #define RT305X_GPIO_MODE_MDIO 7 27 #define RT305X_GPIO_MODE_SDRAM 8 28 #define RT305X_GPIO_MODE_RGMII 9 29 #define RT5350_GPIO_MODE_PHY_LED 14 30 #define RT5350_GPIO_MODE_SPI_CS1 21 31 #define RT3352_GPIO_MODE_LNA 18 32 #define RT3352_GPIO_MODE_PA 20 33 34 static struct mtmips_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) }; 35 static struct mtmips_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) }; 36 static struct mtmips_pmx_func uartf_grp[] = { 37 FUNC("uartf", RT305X_GPIO_MODE_UARTF, 7, 8), 38 FUNC("pcm uartf", RT305X_GPIO_MODE_PCM_UARTF, 7, 8), 39 FUNC("pcm i2s", RT305X_GPIO_MODE_PCM_I2S, 7, 8), 40 FUNC("i2s uartf", RT305X_GPIO_MODE_I2S_UARTF, 7, 8), 41 FUNC("pcm gpio", RT305X_GPIO_MODE_PCM_GPIO, 11, 4), 42 FUNC("gpio uartf", RT305X_GPIO_MODE_GPIO_UARTF, 7, 4), 43 FUNC("gpio i2s", RT305X_GPIO_MODE_GPIO_I2S, 7, 4), 44 }; 45 static struct mtmips_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 15, 2) }; 46 static struct mtmips_pmx_func jtag_grp[] = { FUNC("jtag", 0, 17, 5) }; 47 static struct mtmips_pmx_func mdio_grp[] = { FUNC("mdio", 0, 22, 2) }; 48 static struct mtmips_pmx_func rt5350_led_grp[] = { FUNC("led", 0, 22, 5) }; 49 static struct mtmips_pmx_func rt5350_cs1_grp[] = { 50 FUNC("spi_cs1", 0, 27, 1), 51 FUNC("wdg_cs1", 1, 27, 1), 52 }; 53 static struct mtmips_pmx_func sdram_grp[] = { FUNC("sdram", 0, 24, 16) }; 54 static struct mtmips_pmx_func rt3352_rgmii_grp[] = { 55 FUNC("rgmii", 0, 24, 12) 56 }; 57 static struct mtmips_pmx_func rgmii_grp[] = { FUNC("rgmii", 0, 40, 12) }; 58 static struct mtmips_pmx_func rt3352_lna_grp[] = { FUNC("lna", 0, 36, 2) }; 59 static struct mtmips_pmx_func rt3352_pa_grp[] = { FUNC("pa", 0, 38, 2) }; 60 static struct mtmips_pmx_func rt3352_led_grp[] = { FUNC("led", 0, 40, 5) }; 61 static struct mtmips_pmx_func rt3352_cs1_grp[] = { 62 FUNC("spi_cs1", 0, 45, 1), 63 FUNC("wdg_cs1", 1, 45, 1), 64 }; 65 66 static struct mtmips_pmx_group rt3050_pinmux_data[] = { 67 GRP("i2c", i2c_grp, 1, RT305X_GPIO_MODE_I2C), 68 GRP("spi", spi_grp, 1, RT305X_GPIO_MODE_SPI), 69 GRP("uartf", uartf_grp, RT305X_GPIO_MODE_UART0_MASK, 70 RT305X_GPIO_MODE_UART0_SHIFT), 71 GRP("uartlite", uartlite_grp, 1, RT305X_GPIO_MODE_UART1), 72 GRP("jtag", jtag_grp, 1, RT305X_GPIO_MODE_JTAG), 73 GRP("mdio", mdio_grp, 1, RT305X_GPIO_MODE_MDIO), 74 GRP("rgmii", rgmii_grp, 1, RT305X_GPIO_MODE_RGMII), 75 GRP("sdram", sdram_grp, 1, RT305X_GPIO_MODE_SDRAM), 76 { 0 } 77 }; 78 79 static struct mtmips_pmx_group rt3352_pinmux_data[] = { 80 GRP("i2c", i2c_grp, 1, RT305X_GPIO_MODE_I2C), 81 GRP("spi", spi_grp, 1, RT305X_GPIO_MODE_SPI), 82 GRP("uartf", uartf_grp, RT305X_GPIO_MODE_UART0_MASK, 83 RT305X_GPIO_MODE_UART0_SHIFT), 84 GRP("uartlite", uartlite_grp, 1, RT305X_GPIO_MODE_UART1), 85 GRP("jtag", jtag_grp, 1, RT305X_GPIO_MODE_JTAG), 86 GRP("mdio", mdio_grp, 1, RT305X_GPIO_MODE_MDIO), 87 GRP("rgmii", rt3352_rgmii_grp, 1, RT305X_GPIO_MODE_RGMII), 88 GRP("lna", rt3352_lna_grp, 1, RT3352_GPIO_MODE_LNA), 89 GRP("pa", rt3352_pa_grp, 1, RT3352_GPIO_MODE_PA), 90 GRP("led", rt3352_led_grp, 1, RT5350_GPIO_MODE_PHY_LED), 91 GRP("spi_cs1", rt3352_cs1_grp, 2, RT5350_GPIO_MODE_SPI_CS1), 92 { 0 } 93 }; 94 95 static struct mtmips_pmx_group rt5350_pinmux_data[] = { 96 GRP("i2c", i2c_grp, 1, RT305X_GPIO_MODE_I2C), 97 GRP("spi", spi_grp, 1, RT305X_GPIO_MODE_SPI), 98 GRP("uartf", uartf_grp, RT305X_GPIO_MODE_UART0_MASK, 99 RT305X_GPIO_MODE_UART0_SHIFT), 100 GRP("uartlite", uartlite_grp, 1, RT305X_GPIO_MODE_UART1), 101 GRP("jtag", jtag_grp, 1, RT305X_GPIO_MODE_JTAG), 102 GRP("led", rt5350_led_grp, 1, RT5350_GPIO_MODE_PHY_LED), 103 GRP("spi_cs1", rt5350_cs1_grp, 2, RT5350_GPIO_MODE_SPI_CS1), 104 { 0 } 105 }; 106 107 static int rt305x_pinctrl_probe(struct platform_device *pdev) 108 { 109 if (soc_is_rt5350()) 110 return mtmips_pinctrl_init(pdev, rt5350_pinmux_data); 111 else if (soc_is_rt305x() || soc_is_rt3350()) 112 return mtmips_pinctrl_init(pdev, rt3050_pinmux_data); 113 else if (soc_is_rt3352()) 114 return mtmips_pinctrl_init(pdev, rt3352_pinmux_data); 115 else 116 return -EINVAL; 117 } 118 119 static const struct of_device_id rt305x_pinctrl_match[] = { 120 { .compatible = "ralink,rt305x-pinctrl" }, 121 { .compatible = "ralink,rt3352-pinctrl" }, 122 { .compatible = "ralink,rt5350-pinctrl" }, 123 { .compatible = "ralink,rt2880-pinmux" }, 124 {} 125 }; 126 MODULE_DEVICE_TABLE(of, rt305x_pinctrl_match); 127 128 static struct platform_driver rt305x_pinctrl_driver = { 129 .probe = rt305x_pinctrl_probe, 130 .driver = { 131 .name = "rt305x-pinctrl", 132 .of_match_table = rt305x_pinctrl_match, 133 }, 134 }; 135 136 static int __init rt305x_pinctrl_init(void) 137 { 138 return platform_driver_register(&rt305x_pinctrl_driver); 139 } 140 core_initcall_sync(rt305x_pinctrl_init); 141