diff options
Diffstat (limited to 'drivers/pinctrl/ralink/pinctrl-rt3883.c')
| -rw-r--r-- | drivers/pinctrl/ralink/pinctrl-rt3883.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/pinctrl/ralink/pinctrl-rt3883.c b/drivers/pinctrl/ralink/pinctrl-rt3883.c new file mode 100644 index 000000000000..3e0e1b4caa64 --- /dev/null +++ b/drivers/pinctrl/ralink/pinctrl-rt3883.c @@ -0,0 +1,107 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/of.h> +#include "pinmux.h" + +#define RT3883_GPIO_MODE_UART0_SHIFT 2 +#define RT3883_GPIO_MODE_UART0_MASK 0x7 +#define RT3883_GPIO_MODE_UART0(x) ((x) << RT3883_GPIO_MODE_UART0_SHIFT) +#define RT3883_GPIO_MODE_UARTF 0x0 +#define RT3883_GPIO_MODE_PCM_UARTF 0x1 +#define RT3883_GPIO_MODE_PCM_I2S 0x2 +#define RT3883_GPIO_MODE_I2S_UARTF 0x3 +#define RT3883_GPIO_MODE_PCM_GPIO 0x4 +#define RT3883_GPIO_MODE_GPIO_UARTF 0x5 +#define RT3883_GPIO_MODE_GPIO_I2S 0x6 +#define RT3883_GPIO_MODE_GPIO 0x7 + +#define RT3883_GPIO_MODE_I2C 0 +#define RT3883_GPIO_MODE_SPI 1 +#define RT3883_GPIO_MODE_UART1 5 +#define RT3883_GPIO_MODE_JTAG 6 +#define RT3883_GPIO_MODE_MDIO 7 +#define RT3883_GPIO_MODE_GE1 9 +#define RT3883_GPIO_MODE_GE2 10 + +#define RT3883_GPIO_MODE_PCI_SHIFT 11 +#define RT3883_GPIO_MODE_PCI_MASK 0x7 +#define RT3883_GPIO_MODE_PCI (RT3883_GPIO_MODE_PCI_MASK << RT3883_GPIO_MODE_PCI_SHIFT) +#define RT3883_GPIO_MODE_LNA_A_SHIFT 16 +#define RT3883_GPIO_MODE_LNA_A_MASK 0x3 +#define _RT3883_GPIO_MODE_LNA_A(_x) ((_x) << RT3883_GPIO_MODE_LNA_A_SHIFT) +#define RT3883_GPIO_MODE_LNA_A_GPIO 0x3 +#define RT3883_GPIO_MODE_LNA_A _RT3883_GPIO_MODE_LNA_A(RT3883_GPIO_MODE_LNA_A_MASK) +#define RT3883_GPIO_MODE_LNA_G_SHIFT 18 +#define RT3883_GPIO_MODE_LNA_G_MASK 0x3 +#define _RT3883_GPIO_MODE_LNA_G(_x) ((_x) << RT3883_GPIO_MODE_LNA_G_SHIFT) +#define RT3883_GPIO_MODE_LNA_G_GPIO 0x3 +#define RT3883_GPIO_MODE_LNA_G _RT3883_GPIO_MODE_LNA_G(RT3883_GPIO_MODE_LNA_G_MASK) + +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", RT3883_GPIO_MODE_UARTF, 7, 8), + FUNC("pcm uartf", RT3883_GPIO_MODE_PCM_UARTF, 7, 8), + FUNC("pcm i2s", RT3883_GPIO_MODE_PCM_I2S, 7, 8), + FUNC("i2s uartf", RT3883_GPIO_MODE_I2S_UARTF, 7, 8), + FUNC("pcm gpio", RT3883_GPIO_MODE_PCM_GPIO, 11, 4), + FUNC("gpio uartf", RT3883_GPIO_MODE_GPIO_UARTF, 7, 4), + FUNC("gpio i2s", RT3883_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 lna_a_func[] = { FUNC("lna a", 0, 32, 3) }; +static struct rt2880_pmx_func lna_g_func[] = { FUNC("lna g", 0, 35, 3) }; +static struct rt2880_pmx_func pci_func[] = { + FUNC("pci-dev", 0, 40, 32), + FUNC("pci-host2", 1, 40, 32), + FUNC("pci-host1", 2, 40, 32), + FUNC("pci-fnc", 3, 40, 32) +}; +static struct rt2880_pmx_func ge1_func[] = { FUNC("ge1", 0, 72, 12) }; +static struct rt2880_pmx_func ge2_func[] = { FUNC("ge2", 0, 84, 12) }; + +static struct rt2880_pmx_group rt3883_pinmux_data[] = { + GRP("i2c", i2c_func, 1, RT3883_GPIO_MODE_I2C), + GRP("spi", spi_func, 1, RT3883_GPIO_MODE_SPI), + GRP("uartf", uartf_func, RT3883_GPIO_MODE_UART0_MASK, + RT3883_GPIO_MODE_UART0_SHIFT), + GRP("uartlite", uartlite_func, 1, RT3883_GPIO_MODE_UART1), + GRP("jtag", jtag_func, 1, RT3883_GPIO_MODE_JTAG), + GRP("mdio", mdio_func, 1, RT3883_GPIO_MODE_MDIO), + GRP("lna a", lna_a_func, 1, RT3883_GPIO_MODE_LNA_A), + GRP("lna g", lna_g_func, 1, RT3883_GPIO_MODE_LNA_G), + GRP("pci", pci_func, RT3883_GPIO_MODE_PCI_MASK, + RT3883_GPIO_MODE_PCI_SHIFT), + GRP("ge1", ge1_func, 1, RT3883_GPIO_MODE_GE1), + GRP("ge2", ge2_func, 1, RT3883_GPIO_MODE_GE2), + { 0 } +}; + +static int rt3883_pinmux_probe(struct platform_device *pdev) +{ + return rt2880_pinmux_init(pdev, rt3883_pinmux_data); +} + +static const struct of_device_id rt3883_pinmux_match[] = { + { .compatible = "ralink,rt2880-pinmux" }, + {} +}; +MODULE_DEVICE_TABLE(of, rt3883_pinmux_match); + +static struct platform_driver rt3883_pinmux_driver = { + .probe = rt3883_pinmux_probe, + .driver = { + .name = "rt2880-pinmux", + .of_match_table = rt3883_pinmux_match, + }, +}; + +static int __init rt3883_pinmux_init(void) +{ + return platform_driver_register(&rt3883_pinmux_driver); +} +core_initcall_sync(rt3883_pinmux_init); |