139 lines
5.0 KiB
C
139 lines
5.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <asm/mach-ralink/ralink_regs.h>
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#include <asm/mach-ralink/rt305x.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/of.h>
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#include "pinctrl-ralink.h"
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#define RT305X_GPIO_MODE_UART0_SHIFT 2
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#define RT305X_GPIO_MODE_UART0_MASK 0x7
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#define RT305X_GPIO_MODE_UART0(x) ((x) << RT305X_GPIO_MODE_UART0_SHIFT)
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#define RT305X_GPIO_MODE_UARTF 0
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#define RT305X_GPIO_MODE_PCM_UARTF 1
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#define RT305X_GPIO_MODE_PCM_I2S 2
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#define RT305X_GPIO_MODE_I2S_UARTF 3
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#define RT305X_GPIO_MODE_PCM_GPIO 4
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#define RT305X_GPIO_MODE_GPIO_UARTF 5
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#define RT305X_GPIO_MODE_GPIO_I2S 6
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#define RT305X_GPIO_MODE_GPIO 7
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#define RT305X_GPIO_MODE_I2C 0
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#define RT305X_GPIO_MODE_SPI 1
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#define RT305X_GPIO_MODE_UART1 5
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#define RT305X_GPIO_MODE_JTAG 6
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#define RT305X_GPIO_MODE_MDIO 7
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#define RT305X_GPIO_MODE_SDRAM 8
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#define RT305X_GPIO_MODE_RGMII 9
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#define RT5350_GPIO_MODE_PHY_LED 14
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#define RT5350_GPIO_MODE_SPI_CS1 21
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#define RT3352_GPIO_MODE_LNA 18
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#define RT3352_GPIO_MODE_PA 20
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static struct ralink_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) };
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static struct ralink_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
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static struct ralink_pmx_func uartf_func[] = {
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FUNC("uartf", RT305X_GPIO_MODE_UARTF, 7, 8),
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FUNC("pcm uartf", RT305X_GPIO_MODE_PCM_UARTF, 7, 8),
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FUNC("pcm i2s", RT305X_GPIO_MODE_PCM_I2S, 7, 8),
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FUNC("i2s uartf", RT305X_GPIO_MODE_I2S_UARTF, 7, 8),
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FUNC("pcm gpio", RT305X_GPIO_MODE_PCM_GPIO, 11, 4),
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FUNC("gpio uartf", RT305X_GPIO_MODE_GPIO_UARTF, 7, 4),
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FUNC("gpio i2s", RT305X_GPIO_MODE_GPIO_I2S, 7, 4),
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};
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static struct ralink_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) };
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static struct ralink_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
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static struct ralink_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
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static struct ralink_pmx_func rt5350_led_func[] = { FUNC("led", 0, 22, 5) };
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static struct ralink_pmx_func rt5350_cs1_func[] = {
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FUNC("spi_cs1", 0, 27, 1),
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FUNC("wdg_cs1", 1, 27, 1),
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};
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static struct ralink_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) };
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static struct ralink_pmx_func rt3352_rgmii_func[] = {
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FUNC("rgmii", 0, 24, 12)
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};
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static struct ralink_pmx_func rgmii_func[] = { FUNC("rgmii", 0, 40, 12) };
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static struct ralink_pmx_func rt3352_lna_func[] = { FUNC("lna", 0, 36, 2) };
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static struct ralink_pmx_func rt3352_pa_func[] = { FUNC("pa", 0, 38, 2) };
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static struct ralink_pmx_func rt3352_led_func[] = { FUNC("led", 0, 40, 5) };
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static struct ralink_pmx_func rt3352_cs1_func[] = {
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FUNC("spi_cs1", 0, 45, 1),
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FUNC("wdg_cs1", 1, 45, 1),
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};
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static struct ralink_pmx_group rt3050_pinmux_data[] = {
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GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
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GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
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GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
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RT305X_GPIO_MODE_UART0_SHIFT),
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GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
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GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
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GRP("mdio", mdio_func, 1, RT305X_GPIO_MODE_MDIO),
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GRP("rgmii", rgmii_func, 1, RT305X_GPIO_MODE_RGMII),
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GRP("sdram", sdram_func, 1, RT305X_GPIO_MODE_SDRAM),
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{ 0 }
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};
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static struct ralink_pmx_group rt3352_pinmux_data[] = {
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GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
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GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
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GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
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RT305X_GPIO_MODE_UART0_SHIFT),
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GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
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GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
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GRP("mdio", mdio_func, 1, RT305X_GPIO_MODE_MDIO),
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GRP("rgmii", rt3352_rgmii_func, 1, RT305X_GPIO_MODE_RGMII),
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GRP("lna", rt3352_lna_func, 1, RT3352_GPIO_MODE_LNA),
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GRP("pa", rt3352_pa_func, 1, RT3352_GPIO_MODE_PA),
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GRP("led", rt3352_led_func, 1, RT5350_GPIO_MODE_PHY_LED),
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GRP("spi_cs1", rt3352_cs1_func, 2, RT5350_GPIO_MODE_SPI_CS1),
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{ 0 }
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};
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static struct ralink_pmx_group rt5350_pinmux_data[] = {
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GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
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GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
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GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
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RT305X_GPIO_MODE_UART0_SHIFT),
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GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
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GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
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GRP("led", rt5350_led_func, 1, RT5350_GPIO_MODE_PHY_LED),
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GRP("spi_cs1", rt5350_cs1_func, 2, RT5350_GPIO_MODE_SPI_CS1),
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{ 0 }
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};
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static int rt305x_pinctrl_probe(struct platform_device *pdev)
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{
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if (soc_is_rt5350())
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return ralink_pinctrl_init(pdev, rt5350_pinmux_data);
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else if (soc_is_rt305x() || soc_is_rt3350())
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return ralink_pinctrl_init(pdev, rt3050_pinmux_data);
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else if (soc_is_rt3352())
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return ralink_pinctrl_init(pdev, rt3352_pinmux_data);
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else
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return -EINVAL;
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}
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static const struct of_device_id rt305x_pinctrl_match[] = {
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{ .compatible = "ralink,rt305x-pinctrl" },
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{ .compatible = "ralink,rt2880-pinmux" },
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{}
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};
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MODULE_DEVICE_TABLE(of, rt305x_pinctrl_match);
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static struct platform_driver rt305x_pinctrl_driver = {
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.probe = rt305x_pinctrl_probe,
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.driver = {
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.name = "rt305x-pinctrl",
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.of_match_table = rt305x_pinctrl_match,
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},
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};
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static int __init rt305x_pinctrl_init(void)
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{
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return platform_driver_register(&rt305x_pinctrl_driver);
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}
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core_initcall_sync(rt305x_pinctrl_init);
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