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// SPDX-License-Identifier: GPL-2.0-only
#include <asm/mach-ralink/ralink_regs.h>
#include <asm/mach-ralink/rt305x.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include "pinmux.h"
#define RT305X_GPIO_MODE_UART0_SHIFT 2
#define RT305X_GPIO_MODE_UART0_MASK 0x7
#define RT305X_GPIO_MODE_UART0(x) ((x) << RT305X_GPIO_MODE_UART0_SHIFT)
#define RT305X_GPIO_MODE_UARTF 0
#define RT305X_GPIO_MODE_PCM_UARTF 1
#define RT305X_GPIO_MODE_PCM_I2S 2
#define RT305X_GPIO_MODE_I2S_UARTF 3
#define RT305X_GPIO_MODE_PCM_GPIO 4
#define RT305X_GPIO_MODE_GPIO_UARTF 5
#define RT305X_GPIO_MODE_GPIO_I2S 6
#define RT305X_GPIO_MODE_GPIO 7
#define RT305X_GPIO_MODE_I2C 0
#define RT305X_GPIO_MODE_SPI 1
#define RT305X_GPIO_MODE_UART1 5
#define RT305X_GPIO_MODE_JTAG 6
#define RT305X_GPIO_MODE_MDIO 7
#define RT305X_GPIO_MODE_SDRAM 8
#define RT305X_GPIO_MODE_RGMII 9
#define RT5350_GPIO_MODE_PHY_LED 14
#define RT5350_GPIO_MODE_SPI_CS1 21
#define RT3352_GPIO_MODE_LNA 18
#define RT3352_GPIO_MODE_PA 20
static struct rt2880_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) };
static struct rt2880_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
static struct rt2880_pmx_func uartf_func[] = {
FUNC("uartf", RT305X_GPIO_MODE_UARTF, 7, 8),
FUNC("pcm uartf", RT305X_GPIO_MODE_PCM_UARTF, 7, 8),
FUNC("pcm i2s", RT305X_GPIO_MODE_PCM_I2S, 7, 8),
FUNC("i2s uartf", RT305X_GPIO_MODE_I2S_UARTF, 7, 8),
FUNC("pcm gpio", RT305X_GPIO_MODE_PCM_GPIO, 11, 4),
FUNC("gpio uartf", RT305X_GPIO_MODE_GPIO_UARTF, 7, 4),
FUNC("gpio i2s", RT305X_GPIO_MODE_GPIO_I2S, 7, 4),
};
static struct rt2880_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) };
static struct rt2880_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
static struct rt2880_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
static struct rt2880_pmx_func rt5350_led_func[] = { FUNC("led", 0, 22, 5) };
static struct rt2880_pmx_func rt5350_cs1_func[] = {
FUNC("spi_cs1", 0, 27, 1),
FUNC("wdg_cs1", 1, 27, 1),
};
static struct rt2880_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) };
static struct rt2880_pmx_func rt3352_rgmii_func[] = {
FUNC("rgmii", 0, 24, 12)
};
static struct rt2880_pmx_func rgmii_func[] = { FUNC("rgmii", 0, 40, 12) };
static struct rt2880_pmx_func rt3352_lna_func[] = { FUNC("lna", 0, 36, 2) };
static struct rt2880_pmx_func rt3352_pa_func[] = { FUNC("pa", 0, 38, 2) };
static struct rt2880_pmx_func rt3352_led_func[] = { FUNC("led", 0, 40, 5) };
static struct rt2880_pmx_func rt3352_cs1_func[] = {
FUNC("spi_cs1", 0, 45, 1),
FUNC("wdg_cs1", 1, 45, 1),
};
static struct rt2880_pmx_group rt3050_pinmux_data[] = {
GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
RT305X_GPIO_MODE_UART0_SHIFT),
GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
GRP("mdio", mdio_func, 1, RT305X_GPIO_MODE_MDIO),
GRP("rgmii", rgmii_func, 1, RT305X_GPIO_MODE_RGMII),
GRP("sdram", sdram_func, 1, RT305X_GPIO_MODE_SDRAM),
{ 0 }
};
static struct rt2880_pmx_group rt3352_pinmux_data[] = {
GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
RT305X_GPIO_MODE_UART0_SHIFT),
GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
GRP("mdio", mdio_func, 1, RT305X_GPIO_MODE_MDIO),
GRP("rgmii", rt3352_rgmii_func, 1, RT305X_GPIO_MODE_RGMII),
GRP("lna", rt3352_lna_func, 1, RT3352_GPIO_MODE_LNA),
GRP("pa", rt3352_pa_func, 1, RT3352_GPIO_MODE_PA),
GRP("led", rt3352_led_func, 1, RT5350_GPIO_MODE_PHY_LED),
GRP("spi_cs1", rt3352_cs1_func, 2, RT5350_GPIO_MODE_SPI_CS1),
{ 0 }
};
static struct rt2880_pmx_group rt5350_pinmux_data[] = {
GRP("i2c", i2c_func, 1, RT305X_GPIO_MODE_I2C),
GRP("spi", spi_func, 1, RT305X_GPIO_MODE_SPI),
GRP("uartf", uartf_func, RT305X_GPIO_MODE_UART0_MASK,
RT305X_GPIO_MODE_UART0_SHIFT),
GRP("uartlite", uartlite_func, 1, RT305X_GPIO_MODE_UART1),
GRP("jtag", jtag_func, 1, RT305X_GPIO_MODE_JTAG),
GRP("led", rt5350_led_func, 1, RT5350_GPIO_MODE_PHY_LED),
GRP("spi_cs1", rt5350_cs1_func, 2, RT5350_GPIO_MODE_SPI_CS1),
{ 0 }
};
static int rt305x_pinmux_probe(struct platform_device *pdev)
{
if (soc_is_rt5350())
return rt2880_pinmux_init(pdev, rt5350_pinmux_data);
else if (soc_is_rt305x() || soc_is_rt3350())
return rt2880_pinmux_init(pdev, rt3050_pinmux_data);
else if (soc_is_rt3352())
return rt2880_pinmux_init(pdev, rt3352_pinmux_data);
else
return -EINVAL;
}
static const struct of_device_id rt305x_pinmux_match[] = {
{ .compatible = "ralink,rt2880-pinmux" },
{}
};
MODULE_DEVICE_TABLE(of, rt305x_pinmux_match);
static struct platform_driver rt305x_pinmux_driver = {
.probe = rt305x_pinmux_probe,
.driver = {
.name = "rt2880-pinmux",
.of_match_table = rt305x_pinmux_match,
},
};
static int __init rt305x_pinmux_init(void)
{
return platform_driver_register(&rt305x_pinmux_driver);
}
core_initcall_sync(rt305x_pinmux_init);
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