1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | |
3 | #include <linux/module.h> |
4 | #include <linux/platform_device.h> |
5 | #include <linux/of.h> |
6 | #include "pinctrl-mtmips.h" |
7 | |
8 | #define RT3883_GPIO_MODE_UART0_SHIFT 2 |
9 | #define RT3883_GPIO_MODE_UART0_MASK 0x7 |
10 | #define RT3883_GPIO_MODE_UART0(x) ((x) << RT3883_GPIO_MODE_UART0_SHIFT) |
11 | #define RT3883_GPIO_MODE_UARTF 0x0 |
12 | #define RT3883_GPIO_MODE_PCM_UARTF 0x1 |
13 | #define RT3883_GPIO_MODE_PCM_I2S 0x2 |
14 | #define RT3883_GPIO_MODE_I2S_UARTF 0x3 |
15 | #define RT3883_GPIO_MODE_PCM_GPIO 0x4 |
16 | #define RT3883_GPIO_MODE_GPIO_UARTF 0x5 |
17 | #define RT3883_GPIO_MODE_GPIO_I2S 0x6 |
18 | #define RT3883_GPIO_MODE_GPIO 0x7 |
19 | |
20 | #define RT3883_GPIO_MODE_I2C 0 |
21 | #define RT3883_GPIO_MODE_SPI 1 |
22 | #define RT3883_GPIO_MODE_UART1 5 |
23 | #define RT3883_GPIO_MODE_JTAG 6 |
24 | #define RT3883_GPIO_MODE_MDIO 7 |
25 | #define RT3883_GPIO_MODE_GE1 9 |
26 | #define RT3883_GPIO_MODE_GE2 10 |
27 | |
28 | #define RT3883_GPIO_MODE_PCI_SHIFT 11 |
29 | #define RT3883_GPIO_MODE_PCI_MASK 0x7 |
30 | #define RT3883_GPIO_MODE_PCI (RT3883_GPIO_MODE_PCI_MASK << RT3883_GPIO_MODE_PCI_SHIFT) |
31 | #define RT3883_GPIO_MODE_LNA_A_SHIFT 16 |
32 | #define RT3883_GPIO_MODE_LNA_A_MASK 0x3 |
33 | #define _RT3883_GPIO_MODE_LNA_A(_x) ((_x) << RT3883_GPIO_MODE_LNA_A_SHIFT) |
34 | #define RT3883_GPIO_MODE_LNA_A_GPIO 0x3 |
35 | #define RT3883_GPIO_MODE_LNA_A _RT3883_GPIO_MODE_LNA_A(RT3883_GPIO_MODE_LNA_A_MASK) |
36 | #define RT3883_GPIO_MODE_LNA_G_SHIFT 18 |
37 | #define RT3883_GPIO_MODE_LNA_G_MASK 0x3 |
38 | #define _RT3883_GPIO_MODE_LNA_G(_x) ((_x) << RT3883_GPIO_MODE_LNA_G_SHIFT) |
39 | #define RT3883_GPIO_MODE_LNA_G_GPIO 0x3 |
40 | #define RT3883_GPIO_MODE_LNA_G _RT3883_GPIO_MODE_LNA_G(RT3883_GPIO_MODE_LNA_G_MASK) |
41 | |
42 | static struct mtmips_pmx_func i2c_grp[] = { FUNC("i2c" , 0, 1, 2) }; |
43 | static struct mtmips_pmx_func spi_grp[] = { FUNC("spi" , 0, 3, 4) }; |
44 | static struct mtmips_pmx_func uartf_grp[] = { |
45 | FUNC("uartf" , RT3883_GPIO_MODE_UARTF, 7, 8), |
46 | FUNC("pcm uartf" , RT3883_GPIO_MODE_PCM_UARTF, 7, 8), |
47 | FUNC("pcm i2s" , RT3883_GPIO_MODE_PCM_I2S, 7, 8), |
48 | FUNC("i2s uartf" , RT3883_GPIO_MODE_I2S_UARTF, 7, 8), |
49 | FUNC("pcm gpio" , RT3883_GPIO_MODE_PCM_GPIO, 11, 4), |
50 | FUNC("gpio uartf" , RT3883_GPIO_MODE_GPIO_UARTF, 7, 4), |
51 | FUNC("gpio i2s" , RT3883_GPIO_MODE_GPIO_I2S, 7, 4), |
52 | }; |
53 | static struct mtmips_pmx_func uartlite_grp[] = { FUNC("uartlite" , 0, 15, 2) }; |
54 | static struct mtmips_pmx_func jtag_grp[] = { FUNC("jtag" , 0, 17, 5) }; |
55 | static struct mtmips_pmx_func mdio_grp[] = { FUNC("mdio" , 0, 22, 2) }; |
56 | static struct mtmips_pmx_func lna_a_grp[] = { FUNC("lna a" , 0, 32, 3) }; |
57 | static struct mtmips_pmx_func lna_g_grp[] = { FUNC("lna g" , 0, 35, 3) }; |
58 | static struct mtmips_pmx_func pci_grp[] = { |
59 | FUNC("pci-dev" , 0, 40, 32), |
60 | FUNC("pci-host2" , 1, 40, 32), |
61 | FUNC("pci-host1" , 2, 40, 32), |
62 | FUNC("pci-fnc" , 3, 40, 32) |
63 | }; |
64 | static struct mtmips_pmx_func ge1_grp[] = { FUNC("ge1" , 0, 72, 12) }; |
65 | static struct mtmips_pmx_func ge2_grp[] = { FUNC("ge2" , 0, 84, 12) }; |
66 | |
67 | static struct mtmips_pmx_group rt3883_pinmux_data[] = { |
68 | GRP("i2c" , i2c_grp, 1, RT3883_GPIO_MODE_I2C), |
69 | GRP("spi" , spi_grp, 1, RT3883_GPIO_MODE_SPI), |
70 | GRP("uartf" , uartf_grp, RT3883_GPIO_MODE_UART0_MASK, |
71 | RT3883_GPIO_MODE_UART0_SHIFT), |
72 | GRP("uartlite" , uartlite_grp, 1, RT3883_GPIO_MODE_UART1), |
73 | GRP("jtag" , jtag_grp, 1, RT3883_GPIO_MODE_JTAG), |
74 | GRP("mdio" , mdio_grp, 1, RT3883_GPIO_MODE_MDIO), |
75 | GRP("lna a" , lna_a_grp, 1, RT3883_GPIO_MODE_LNA_A), |
76 | GRP("lna g" , lna_g_grp, 1, RT3883_GPIO_MODE_LNA_G), |
77 | GRP("pci" , pci_grp, RT3883_GPIO_MODE_PCI_MASK, |
78 | RT3883_GPIO_MODE_PCI_SHIFT), |
79 | GRP("ge1" , ge1_grp, 1, RT3883_GPIO_MODE_GE1), |
80 | GRP("ge2" , ge2_grp, 1, RT3883_GPIO_MODE_GE2), |
81 | { 0 } |
82 | }; |
83 | |
84 | static int rt3883_pinctrl_probe(struct platform_device *pdev) |
85 | { |
86 | return mtmips_pinctrl_init(pdev, data: rt3883_pinmux_data); |
87 | } |
88 | |
89 | static const struct of_device_id rt3883_pinctrl_match[] = { |
90 | { .compatible = "ralink,rt3883-pinctrl" }, |
91 | { .compatible = "ralink,rt2880-pinmux" }, |
92 | {} |
93 | }; |
94 | MODULE_DEVICE_TABLE(of, rt3883_pinctrl_match); |
95 | |
96 | static struct platform_driver rt3883_pinctrl_driver = { |
97 | .probe = rt3883_pinctrl_probe, |
98 | .driver = { |
99 | .name = "rt3883-pinctrl" , |
100 | .of_match_table = rt3883_pinctrl_match, |
101 | }, |
102 | }; |
103 | |
104 | static int __init rt3883_pinctrl_init(void) |
105 | { |
106 | return platform_driver_register(&rt3883_pinctrl_driver); |
107 | } |
108 | core_initcall_sync(rt3883_pinctrl_init); |
109 | |