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137 lines
5.0 KiB
137 lines
5.0 KiB
// 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 "pinmux.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 rt2880_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) }; |
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static struct rt2880_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) }; |
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static struct rt2880_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 rt2880_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) }; |
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static struct rt2880_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) }; |
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static struct rt2880_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) }; |
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static struct rt2880_pmx_func rt5350_led_func[] = { FUNC("led", 0, 22, 5) }; |
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static struct rt2880_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 rt2880_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) }; |
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static struct rt2880_pmx_func rt3352_rgmii_func[] = { |
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FUNC("rgmii", 0, 24, 12) |
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}; |
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static struct rt2880_pmx_func rgmii_func[] = { FUNC("rgmii", 0, 40, 12) }; |
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static struct rt2880_pmx_func rt3352_lna_func[] = { FUNC("lna", 0, 36, 2) }; |
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static struct rt2880_pmx_func rt3352_pa_func[] = { FUNC("pa", 0, 38, 2) }; |
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static struct rt2880_pmx_func rt3352_led_func[] = { FUNC("led", 0, 40, 5) }; |
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static struct rt2880_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 rt2880_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 rt2880_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 rt2880_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_pinmux_probe(struct platform_device *pdev) |
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{ |
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if (soc_is_rt5350()) |
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return rt2880_pinmux_init(pdev, rt5350_pinmux_data); |
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else if (soc_is_rt305x() || soc_is_rt3350()) |
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return rt2880_pinmux_init(pdev, rt3050_pinmux_data); |
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else if (soc_is_rt3352()) |
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return rt2880_pinmux_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_pinmux_match[] = { |
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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_pinmux_match); |
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static struct platform_driver rt305x_pinmux_driver = { |
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.probe = rt305x_pinmux_probe, |
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.driver = { |
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.name = "rt2880-pinmux", |
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.of_match_table = rt305x_pinmux_match, |
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}, |
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}; |
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static int __init rt305x_pinmux_init(void) |
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{ |
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return platform_driver_register(&rt305x_pinmux_driver); |
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} |
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core_initcall_sync(rt305x_pinmux_init);
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