62 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2 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 18static struct mtmips_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) };19static struct mtmips_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) };20static struct mtmips_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 7, 8) };21static struct mtmips_pmx_func jtag_grp[] = { FUNC("jtag", 0, 17, 5) };22static struct mtmips_pmx_func mdio_grp[] = { FUNC("mdio", 0, 22, 2) };23static struct mtmips_pmx_func sdram_grp[] = { FUNC("sdram", 0, 24, 16) };24static struct mtmips_pmx_func pci_grp[] = { FUNC("pci", 0, 40, 32) };25 26static 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 37static int rt2880_pinctrl_probe(struct platform_device *pdev)38{39 return mtmips_pinctrl_init(pdev, rt2880_pinmux_data_act);40}41 42static const struct of_device_id rt2880_pinctrl_match[] = {43 { .compatible = "ralink,rt2880-pinctrl" },44 { .compatible = "ralink,rt2880-pinmux" },45 {}46};47MODULE_DEVICE_TABLE(of, rt2880_pinctrl_match);48 49static 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 57static int __init rt2880_pinctrl_init(void)58{59 return platform_driver_register(&rt2880_pinctrl_driver);60}61core_initcall_sync(rt2880_pinctrl_init);62