1 // SPDX-License-Identifier: GPL-2.0-only 2 3 #include <linux/bitops.h> 4 #include <linux/module.h> 5 #include <linux/platform_device.h> 6 #include <linux/of.h> 7 #include "pinctrl-mtmips.h" 8 9 #define RT2880_GPIO_MODE_I2C BIT(0) 10 #define RT2880_GPIO_MODE_UART0 BIT(1) 11 #define RT2880_GPIO_MODE_SPI BIT(2) 12 #define RT2880_GPIO_MODE_UART1 BIT(3) 13 #define RT2880_GPIO_MODE_JTAG BIT(4) 14 #define RT2880_GPIO_MODE_MDIO BIT(5) 15 #define RT2880_GPIO_MODE_SDRAM BIT(6) 16 #define RT2880_GPIO_MODE_PCI BIT(7) 17 18 static struct mtmips_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) }; 19 static struct mtmips_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) }; 20 static struct mtmips_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 7, 8) }; 21 static struct mtmips_pmx_func jtag_grp[] = { FUNC("jtag", 0, 17, 5) }; 22 static struct mtmips_pmx_func mdio_grp[] = { FUNC("mdio", 0, 22, 2) }; 23 static struct mtmips_pmx_func sdram_grp[] = { FUNC("sdram", 0, 24, 16) }; 24 static struct mtmips_pmx_func pci_grp[] = { FUNC("pci", 0, 40, 32) }; 25 26 static struct mtmips_pmx_group rt2880_pinmux_data_act[] = { 27 GRP("i2c", i2c_grp, 1, RT2880_GPIO_MODE_I2C), 28 GRP("spi", spi_grp, 1, RT2880_GPIO_MODE_SPI), 29 GRP("uartlite", uartlite_grp, 1, RT2880_GPIO_MODE_UART0), 30 GRP("jtag", jtag_grp, 1, RT2880_GPIO_MODE_JTAG), 31 GRP("mdio", mdio_grp, 1, RT2880_GPIO_MODE_MDIO), 32 GRP("sdram", sdram_grp, 1, RT2880_GPIO_MODE_SDRAM), 33 GRP("pci", pci_grp, 1, RT2880_GPIO_MODE_PCI), 34 { 0 } 35 }; 36 37 static int rt2880_pinctrl_probe(struct platform_device *pdev) 38 { 39 return mtmips_pinctrl_init(pdev, rt2880_pinmux_data_act); 40 } 41 42 static const struct of_device_id rt2880_pinctrl_match[] = { 43 { .compatible = "ralink,rt2880-pinctrl" }, 44 { .compatible = "ralink,rt2880-pinmux" }, 45 {} 46 }; 47 MODULE_DEVICE_TABLE(of, rt2880_pinctrl_match); 48 49 static struct platform_driver rt2880_pinctrl_driver = { 50 .probe = rt2880_pinctrl_probe, 51 .driver = { 52 .name = "rt2880-pinctrl", 53 .of_match_table = rt2880_pinctrl_match, 54 }, 55 }; 56 57 static int __init rt2880_pinctrl_init(void) 58 { 59 return platform_driver_register(&rt2880_pinctrl_driver); 60 } 61 core_initcall_sync(rt2880_pinctrl_init); 62