109 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2 3#include <linux/module.h>4#include <linux/platform_device.h>5#include <linux/of.h>6#include "pinctrl-mtmips.h"7 8#define RT3883_GPIO_MODE_UART0_SHIFT 29#define RT3883_GPIO_MODE_UART0_MASK 0x710#define RT3883_GPIO_MODE_UART0(x) ((x) << RT3883_GPIO_MODE_UART0_SHIFT)11#define RT3883_GPIO_MODE_UARTF 0x012#define RT3883_GPIO_MODE_PCM_UARTF 0x113#define RT3883_GPIO_MODE_PCM_I2S 0x214#define RT3883_GPIO_MODE_I2S_UARTF 0x315#define RT3883_GPIO_MODE_PCM_GPIO 0x416#define RT3883_GPIO_MODE_GPIO_UARTF 0x517#define RT3883_GPIO_MODE_GPIO_I2S 0x618#define RT3883_GPIO_MODE_GPIO 0x719 20#define RT3883_GPIO_MODE_I2C 021#define RT3883_GPIO_MODE_SPI 122#define RT3883_GPIO_MODE_UART1 523#define RT3883_GPIO_MODE_JTAG 624#define RT3883_GPIO_MODE_MDIO 725#define RT3883_GPIO_MODE_GE1 926#define RT3883_GPIO_MODE_GE2 1027 28#define RT3883_GPIO_MODE_PCI_SHIFT 1129#define RT3883_GPIO_MODE_PCI_MASK 0x730#define RT3883_GPIO_MODE_PCI (RT3883_GPIO_MODE_PCI_MASK << RT3883_GPIO_MODE_PCI_SHIFT)31#define RT3883_GPIO_MODE_LNA_A_SHIFT 1632#define RT3883_GPIO_MODE_LNA_A_MASK 0x333#define _RT3883_GPIO_MODE_LNA_A(_x) ((_x) << RT3883_GPIO_MODE_LNA_A_SHIFT)34#define RT3883_GPIO_MODE_LNA_A_GPIO 0x335#define RT3883_GPIO_MODE_LNA_A _RT3883_GPIO_MODE_LNA_A(RT3883_GPIO_MODE_LNA_A_MASK)36#define RT3883_GPIO_MODE_LNA_G_SHIFT 1837#define RT3883_GPIO_MODE_LNA_G_MASK 0x338#define _RT3883_GPIO_MODE_LNA_G(_x) ((_x) << RT3883_GPIO_MODE_LNA_G_SHIFT)39#define RT3883_GPIO_MODE_LNA_G_GPIO 0x340#define RT3883_GPIO_MODE_LNA_G _RT3883_GPIO_MODE_LNA_G(RT3883_GPIO_MODE_LNA_G_MASK)41 42static struct mtmips_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) };43static struct mtmips_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) };44static struct mtmips_pmx_func uartf_grp[] = {45 FUNC("uartf", RT3883_GPIO_MODE_UARTF, 7, 8),46 FUNC("pcm uartf", RT3883_GPIO_MODE_PCM_UARTF, 7, 8),47 FUNC("pcm i2s", RT3883_GPIO_MODE_PCM_I2S, 7, 8),48 FUNC("i2s uartf", RT3883_GPIO_MODE_I2S_UARTF, 7, 8),49 FUNC("pcm gpio", RT3883_GPIO_MODE_PCM_GPIO, 11, 4),50 FUNC("gpio uartf", RT3883_GPIO_MODE_GPIO_UARTF, 7, 4),51 FUNC("gpio i2s", RT3883_GPIO_MODE_GPIO_I2S, 7, 4),52};53static struct mtmips_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 15, 2) };54static struct mtmips_pmx_func jtag_grp[] = { FUNC("jtag", 0, 17, 5) };55static struct mtmips_pmx_func mdio_grp[] = { FUNC("mdio", 0, 22, 2) };56static struct mtmips_pmx_func lna_a_grp[] = { FUNC("lna a", 0, 32, 3) };57static struct mtmips_pmx_func lna_g_grp[] = { FUNC("lna g", 0, 35, 3) };58static struct mtmips_pmx_func pci_grp[] = {59 FUNC("pci-dev", 0, 40, 32),60 FUNC("pci-host2", 1, 40, 32),61 FUNC("pci-host1", 2, 40, 32),62 FUNC("pci-fnc", 3, 40, 32)63};64static struct mtmips_pmx_func ge1_grp[] = { FUNC("ge1", 0, 72, 12) };65static struct mtmips_pmx_func ge2_grp[] = { FUNC("ge2", 0, 84, 12) };66 67static struct mtmips_pmx_group rt3883_pinmux_data[] = {68 GRP("i2c", i2c_grp, 1, RT3883_GPIO_MODE_I2C),69 GRP("spi", spi_grp, 1, RT3883_GPIO_MODE_SPI),70 GRP("uartf", uartf_grp, RT3883_GPIO_MODE_UART0_MASK,71 RT3883_GPIO_MODE_UART0_SHIFT),72 GRP("uartlite", uartlite_grp, 1, RT3883_GPIO_MODE_UART1),73 GRP("jtag", jtag_grp, 1, RT3883_GPIO_MODE_JTAG),74 GRP("mdio", mdio_grp, 1, RT3883_GPIO_MODE_MDIO),75 GRP("lna a", lna_a_grp, 1, RT3883_GPIO_MODE_LNA_A),76 GRP("lna g", lna_g_grp, 1, RT3883_GPIO_MODE_LNA_G),77 GRP("pci", pci_grp, RT3883_GPIO_MODE_PCI_MASK,78 RT3883_GPIO_MODE_PCI_SHIFT),79 GRP("ge1", ge1_grp, 1, RT3883_GPIO_MODE_GE1),80 GRP("ge2", ge2_grp, 1, RT3883_GPIO_MODE_GE2),81 { 0 }82};83 84static int rt3883_pinctrl_probe(struct platform_device *pdev)85{86 return mtmips_pinctrl_init(pdev, rt3883_pinmux_data);87}88 89static const struct of_device_id rt3883_pinctrl_match[] = {90 { .compatible = "ralink,rt3883-pinctrl" },91 { .compatible = "ralink,rt2880-pinmux" },92 {}93};94MODULE_DEVICE_TABLE(of, rt3883_pinctrl_match);95 96static struct platform_driver rt3883_pinctrl_driver = {97 .probe = rt3883_pinctrl_probe,98 .driver = {99 .name = "rt3883-pinctrl",100 .of_match_table = rt3883_pinctrl_match,101 },102};103 104static int __init rt3883_pinctrl_init(void)105{106 return platform_driver_register(&rt3883_pinctrl_driver);107}108core_initcall_sync(rt3883_pinctrl_init);109