Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Open Menu /drivers/pinctrl/ralink/pinctrl-rt305x.c
Loading...
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
// 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);