diff options
Diffstat (limited to 'drivers/pinctrl/ralink/pinctrl-rt305x.c')
| -rw-r--r-- | drivers/pinctrl/ralink/pinctrl-rt305x.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/pinctrl/ralink/pinctrl-rt305x.c b/drivers/pinctrl/ralink/pinctrl-rt305x.c new file mode 100644 index 000000000..13a012a65 --- /dev/null +++ b/drivers/pinctrl/ralink/pinctrl-rt305x.c @@ -0,0 +1,138 @@ +// 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 "pinctrl-ralink.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 ralink_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) }; +static struct ralink_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) }; +static struct ralink_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 ralink_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) }; +static struct ralink_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) }; +static struct ralink_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) }; +static struct ralink_pmx_func rt5350_led_func[] = { FUNC("led", 0, 22, 5) }; +static struct ralink_pmx_func rt5350_cs1_func[] = { + FUNC("spi_cs1", 0, 27, 1), + FUNC("wdg_cs1", 1, 27, 1), +}; +static struct ralink_pmx_func sdram_func[] = { FUNC("sdram", 0, 24, 16) }; +static struct ralink_pmx_func rt3352_rgmii_func[] = { + FUNC("rgmii", 0, 24, 12) +}; +static struct ralink_pmx_func rgmii_func[] = { FUNC("rgmii", 0, 40, 12) }; +static struct ralink_pmx_func rt3352_lna_func[] = { FUNC("lna", 0, 36, 2) }; +static struct ralink_pmx_func rt3352_pa_func[] = { FUNC("pa", 0, 38, 2) }; +static struct ralink_pmx_func rt3352_led_func[] = { FUNC("led", 0, 40, 5) }; +static struct ralink_pmx_func rt3352_cs1_func[] = { + FUNC("spi_cs1", 0, 45, 1), + FUNC("wdg_cs1", 1, 45, 1), +}; + +static struct ralink_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 ralink_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 ralink_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_pinctrl_probe(struct platform_device *pdev) +{ + if (soc_is_rt5350()) + return ralink_pinctrl_init(pdev, rt5350_pinmux_data); + else if (soc_is_rt305x() || soc_is_rt3350()) + return ralink_pinctrl_init(pdev, rt3050_pinmux_data); + else if (soc_is_rt3352()) + return ralink_pinctrl_init(pdev, rt3352_pinmux_data); + else + return -EINVAL; +} + +static const struct of_device_id rt305x_pinctrl_match[] = { + { .compatible = "ralink,rt305x-pinctrl" }, + { .compatible = "ralink,rt2880-pinmux" }, + {} +}; +MODULE_DEVICE_TABLE(of, rt305x_pinctrl_match); + +static struct platform_driver rt305x_pinctrl_driver = { + .probe = rt305x_pinctrl_probe, + .driver = { + .name = "rt305x-pinctrl", + .of_match_table = rt305x_pinctrl_match, + }, +}; + +static int __init rt305x_pinctrl_init(void) +{ + return platform_driver_register(&rt305x_pinctrl_driver); +} +core_initcall_sync(rt305x_pinctrl_init); |