109 lines
4.0 KiB
C
109 lines
4.0 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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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 "pinctrl-ralink.h"
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#define RT3883_GPIO_MODE_UART0_SHIFT 2
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#define RT3883_GPIO_MODE_UART0_MASK 0x7
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#define RT3883_GPIO_MODE_UART0(x) ((x) << RT3883_GPIO_MODE_UART0_SHIFT)
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#define RT3883_GPIO_MODE_UARTF 0x0
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#define RT3883_GPIO_MODE_PCM_UARTF 0x1
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#define RT3883_GPIO_MODE_PCM_I2S 0x2
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#define RT3883_GPIO_MODE_I2S_UARTF 0x3
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#define RT3883_GPIO_MODE_PCM_GPIO 0x4
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#define RT3883_GPIO_MODE_GPIO_UARTF 0x5
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#define RT3883_GPIO_MODE_GPIO_I2S 0x6
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#define RT3883_GPIO_MODE_GPIO 0x7
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#define RT3883_GPIO_MODE_I2C 0
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#define RT3883_GPIO_MODE_SPI 1
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#define RT3883_GPIO_MODE_UART1 5
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#define RT3883_GPIO_MODE_JTAG 6
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#define RT3883_GPIO_MODE_MDIO 7
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#define RT3883_GPIO_MODE_GE1 9
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#define RT3883_GPIO_MODE_GE2 10
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#define RT3883_GPIO_MODE_PCI_SHIFT 11
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#define RT3883_GPIO_MODE_PCI_MASK 0x7
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#define RT3883_GPIO_MODE_PCI (RT3883_GPIO_MODE_PCI_MASK << RT3883_GPIO_MODE_PCI_SHIFT)
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#define RT3883_GPIO_MODE_LNA_A_SHIFT 16
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#define RT3883_GPIO_MODE_LNA_A_MASK 0x3
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#define _RT3883_GPIO_MODE_LNA_A(_x) ((_x) << RT3883_GPIO_MODE_LNA_A_SHIFT)
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#define RT3883_GPIO_MODE_LNA_A_GPIO 0x3
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#define RT3883_GPIO_MODE_LNA_A _RT3883_GPIO_MODE_LNA_A(RT3883_GPIO_MODE_LNA_A_MASK)
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#define RT3883_GPIO_MODE_LNA_G_SHIFT 18
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#define RT3883_GPIO_MODE_LNA_G_MASK 0x3
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#define _RT3883_GPIO_MODE_LNA_G(_x) ((_x) << RT3883_GPIO_MODE_LNA_G_SHIFT)
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#define RT3883_GPIO_MODE_LNA_G_GPIO 0x3
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#define RT3883_GPIO_MODE_LNA_G _RT3883_GPIO_MODE_LNA_G(RT3883_GPIO_MODE_LNA_G_MASK)
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static struct ralink_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) };
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static struct ralink_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) };
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static struct ralink_pmx_func uartf_grp[] = {
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FUNC("uartf", RT3883_GPIO_MODE_UARTF, 7, 8),
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FUNC("pcm uartf", RT3883_GPIO_MODE_PCM_UARTF, 7, 8),
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FUNC("pcm i2s", RT3883_GPIO_MODE_PCM_I2S, 7, 8),
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FUNC("i2s uartf", RT3883_GPIO_MODE_I2S_UARTF, 7, 8),
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FUNC("pcm gpio", RT3883_GPIO_MODE_PCM_GPIO, 11, 4),
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FUNC("gpio uartf", RT3883_GPIO_MODE_GPIO_UARTF, 7, 4),
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FUNC("gpio i2s", RT3883_GPIO_MODE_GPIO_I2S, 7, 4),
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};
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static struct ralink_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 15, 2) };
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static struct ralink_pmx_func jtag_grp[] = { FUNC("jtag", 0, 17, 5) };
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static struct ralink_pmx_func mdio_grp[] = { FUNC("mdio", 0, 22, 2) };
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static struct ralink_pmx_func lna_a_grp[] = { FUNC("lna a", 0, 32, 3) };
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static struct ralink_pmx_func lna_g_grp[] = { FUNC("lna g", 0, 35, 3) };
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static struct ralink_pmx_func pci_grp[] = {
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FUNC("pci-dev", 0, 40, 32),
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FUNC("pci-host2", 1, 40, 32),
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FUNC("pci-host1", 2, 40, 32),
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FUNC("pci-fnc", 3, 40, 32)
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};
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static struct ralink_pmx_func ge1_grp[] = { FUNC("ge1", 0, 72, 12) };
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static struct ralink_pmx_func ge2_grp[] = { FUNC("ge2", 0, 84, 12) };
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static struct ralink_pmx_group rt3883_pinmux_data[] = {
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GRP("i2c", i2c_grp, 1, RT3883_GPIO_MODE_I2C),
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GRP("spi", spi_grp, 1, RT3883_GPIO_MODE_SPI),
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GRP("uartf", uartf_grp, RT3883_GPIO_MODE_UART0_MASK,
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RT3883_GPIO_MODE_UART0_SHIFT),
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GRP("uartlite", uartlite_grp, 1, RT3883_GPIO_MODE_UART1),
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GRP("jtag", jtag_grp, 1, RT3883_GPIO_MODE_JTAG),
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GRP("mdio", mdio_grp, 1, RT3883_GPIO_MODE_MDIO),
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GRP("lna a", lna_a_grp, 1, RT3883_GPIO_MODE_LNA_A),
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GRP("lna g", lna_g_grp, 1, RT3883_GPIO_MODE_LNA_G),
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GRP("pci", pci_grp, RT3883_GPIO_MODE_PCI_MASK,
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RT3883_GPIO_MODE_PCI_SHIFT),
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GRP("ge1", ge1_grp, 1, RT3883_GPIO_MODE_GE1),
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GRP("ge2", ge2_grp, 1, RT3883_GPIO_MODE_GE2),
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{ 0 }
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};
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static int rt3883_pinctrl_probe(struct platform_device *pdev)
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{
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return ralink_pinctrl_init(pdev, rt3883_pinmux_data);
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}
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static const struct of_device_id rt3883_pinctrl_match[] = {
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{ .compatible = "ralink,rt3883-pinctrl" },
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{ .compatible = "ralink,rt2880-pinmux" },
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{}
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};
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MODULE_DEVICE_TABLE(of, rt3883_pinctrl_match);
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static struct platform_driver rt3883_pinctrl_driver = {
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.probe = rt3883_pinctrl_probe,
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.driver = {
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.name = "rt3883-pinctrl",
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.of_match_table = rt3883_pinctrl_match,
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},
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};
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static int __init rt3883_pinctrl_init(void)
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{
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return platform_driver_register(&rt3883_pinctrl_driver);
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}
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core_initcall_sync(rt3883_pinctrl_init);
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