1 /*
2 * Allwinner A80 SoCs special pins pinctrl driver.
3 *
4 * Copyright (C) 2014 Maxime Ripard
5 * Maxime Ripard <maxime.ripard@free-electrons.com>
6 *
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
10 */
11
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/of.h>
15 #include <linux/of_device.h>
16 #include <linux/pinctrl/pinctrl.h>
17 #include <linux/reset.h>
18
19 #include "pinctrl-sunxi.h"
20
21 static const struct sunxi_desc_pin sun9i_a80_r_pins[] = {
22 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
23 SUNXI_FUNCTION(0x0, "gpio_in"),
24 SUNXI_FUNCTION(0x1, "gpio_out"),
25 SUNXI_FUNCTION(0x3, "s_uart"), /* TX */
26 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)), /* PL_EINT0 */
27 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
28 SUNXI_FUNCTION(0x0, "gpio_in"),
29 SUNXI_FUNCTION(0x1, "gpio_out"),
30 SUNXI_FUNCTION(0x3, "s_uart"), /* RX */
31 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)), /* PL_EINT1 */
32 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
33 SUNXI_FUNCTION(0x0, "gpio_in"),
34 SUNXI_FUNCTION(0x1, "gpio_out"),
35 SUNXI_FUNCTION(0x3, "s_jtag"), /* TMS */
36 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)), /* PL_EINT2 */
37 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
38 SUNXI_FUNCTION(0x0, "gpio_in"),
39 SUNXI_FUNCTION(0x1, "gpio_out"),
40 SUNXI_FUNCTION(0x3, "s_jtag"), /* TCK */
41 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)), /* PL_EINT3 */
42 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
43 SUNXI_FUNCTION(0x0, "gpio_in"),
44 SUNXI_FUNCTION(0x1, "gpio_out"),
45 SUNXI_FUNCTION(0x3, "s_jtag"), /* TDO */
46 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)), /* PL_EINT4 */
47 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
48 SUNXI_FUNCTION(0x0, "gpio_in"),
49 SUNXI_FUNCTION(0x1, "gpio_out"),
50 SUNXI_FUNCTION(0x3, "s_jtag"), /* TDI */
51 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)), /* PL_EINT5 */
52 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
53 SUNXI_FUNCTION(0x0, "gpio_in"),
54 SUNXI_FUNCTION(0x1, "gpio_out"),
55 SUNXI_FUNCTION(0x3, "s_cir_rx"),
56 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)), /* PL_EINT6 */
57 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
58 SUNXI_FUNCTION(0x0, "gpio_in"),
59 SUNXI_FUNCTION(0x1, "gpio_out"),
60 SUNXI_FUNCTION(0x3, "1wire"),
61 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)), /* PL_EINT7 */
62 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
63 SUNXI_FUNCTION(0x0, "gpio_in"),
64 SUNXI_FUNCTION(0x1, "gpio_out"),
65 SUNXI_FUNCTION(0x2, "s_ps2"), /* SCK1 */
66 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 8)), /* PL_EINT8 */
67 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
68 SUNXI_FUNCTION(0x0, "gpio_in"),
69 SUNXI_FUNCTION(0x1, "gpio_out"),
70 SUNXI_FUNCTION(0x2, "s_ps2"), /* SDA1 */
71 SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)), /* PL_EINT9 */
72
73 /* Hole */
74 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 0),
75 SUNXI_FUNCTION(0x0, "gpio_in"),
76 SUNXI_FUNCTION(0x1, "gpio_out"),
77 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 0)), /* PM_EINT0 */
78 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 1),
79 SUNXI_FUNCTION(0x0, "gpio_in"),
80 SUNXI_FUNCTION(0x1, "gpio_out"),
81 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 1)), /* PM_EINT1 */
82 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 2),
83 SUNXI_FUNCTION(0x0, "gpio_in"),
84 SUNXI_FUNCTION(0x1, "gpio_out"),
85 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 2)), /* PM_EINT2 */
86 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 3),
87 SUNXI_FUNCTION(0x0, "gpio_in"),
88 SUNXI_FUNCTION(0x1, "gpio_out"),
89 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 3)), /* PM_EINT3 */
90 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 4),
91 SUNXI_FUNCTION(0x0, "gpio_in"),
92 SUNXI_FUNCTION(0x1, "gpio_out"),
93 SUNXI_FUNCTION(0x3, "s_i2s1"), /* LRCKR */
94 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 4)), /* PM_EINT4 */
95
96 /* Hole */
97 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 8),
98 SUNXI_FUNCTION(0x0, "gpio_in"),
99 SUNXI_FUNCTION(0x1, "gpio_out"),
100 SUNXI_FUNCTION(0x3, "s_i2c1"), /* SCK */
101 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 8)), /* PM_EINT8 */
102 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 9),
103 SUNXI_FUNCTION(0x0, "gpio_in"),
104 SUNXI_FUNCTION(0x1, "gpio_out"),
105 SUNXI_FUNCTION(0x3, "s_i2c1"), /* SDA */
106 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 9)), /* PM_EINT9 */
107 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 10),
108 SUNXI_FUNCTION(0x0, "gpio_in"),
109 SUNXI_FUNCTION(0x1, "gpio_out"),
110 SUNXI_FUNCTION(0x2, "s_i2s0"), /* MCLK */
111 SUNXI_FUNCTION(0x3, "s_i2s1")), /* MCLK */
112 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 11),
113 SUNXI_FUNCTION(0x0, "gpio_in"),
114 SUNXI_FUNCTION(0x1, "gpio_out"),
115 SUNXI_FUNCTION(0x2, "s_i2s0"), /* BCLK */
116 SUNXI_FUNCTION(0x3, "s_i2s1")), /* BCLK */
117 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 12),
118 SUNXI_FUNCTION(0x0, "gpio_in"),
119 SUNXI_FUNCTION(0x1, "gpio_out"),
120 SUNXI_FUNCTION(0x2, "s_i2s0"), /* LRCK */
121 SUNXI_FUNCTION(0x3, "s_i2s1")), /* LRCK */
122 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 13),
123 SUNXI_FUNCTION(0x0, "gpio_in"),
124 SUNXI_FUNCTION(0x1, "gpio_out"),
125 SUNXI_FUNCTION(0x2, "s_i2s0"), /* DIN */
126 SUNXI_FUNCTION(0x3, "s_i2s1")), /* DIN */
127 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 14),
128 SUNXI_FUNCTION(0x0, "gpio_in"),
129 SUNXI_FUNCTION(0x1, "gpio_out"),
130 SUNXI_FUNCTION(0x2, "s_i2s0"), /* DOUT */
131 SUNXI_FUNCTION(0x3, "s_i2s1")), /* DOUT */
132 SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 15),
133 SUNXI_FUNCTION(0x0, "gpio_in"),
134 SUNXI_FUNCTION(0x1, "gpio_out"),
135 SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 15)), /* PM_EINT15 */
136
137 /* Hole */
138 SUNXI_PIN(SUNXI_PINCTRL_PIN(N, 0),
139 SUNXI_FUNCTION(0x0, "gpio_in"),
140 SUNXI_FUNCTION(0x1, "gpio_out"),
141 SUNXI_FUNCTION(0x2, "s_i2c0"), /* SCK */
142 SUNXI_FUNCTION(0x3, "s_rsb")), /* SCK */
143 SUNXI_PIN(SUNXI_PINCTRL_PIN(N, 1),
144 SUNXI_FUNCTION(0x0, "gpio_in"),
145 SUNXI_FUNCTION(0x1, "gpio_out"),
146 SUNXI_FUNCTION(0x2, "s_i2c0"), /* SDA */
147 SUNXI_FUNCTION(0x3, "s_rsb")), /* SDA */
148 };
149
150 static const struct sunxi_pinctrl_desc sun9i_a80_r_pinctrl_data = {
151 .pins = sun9i_a80_r_pins,
152 .npins = ARRAY_SIZE(sun9i_a80_r_pins),
153 .pin_base = PL_BASE,
154 .irq_banks = 2,
155 .disable_strict_mode = true,
156 .io_bias_cfg_variant = BIAS_VOLTAGE_GRP_CONFIG,
157 };
158
sun9i_a80_r_pinctrl_probe(struct platform_device * pdev)159 static int sun9i_a80_r_pinctrl_probe(struct platform_device *pdev)
160 {
161 return sunxi_pinctrl_init(pdev,
162 &sun9i_a80_r_pinctrl_data);
163 }
164
165 static const struct of_device_id sun9i_a80_r_pinctrl_match[] = {
166 { .compatible = "allwinner,sun9i-a80-r-pinctrl", },
167 {}
168 };
169
170 static struct platform_driver sun9i_a80_r_pinctrl_driver = {
171 .probe = sun9i_a80_r_pinctrl_probe,
172 .driver = {
173 .name = "sun9i-a80-r-pinctrl",
174 .owner = THIS_MODULE,
175 .of_match_table = sun9i_a80_r_pinctrl_match,
176 },
177 };
178 builtin_platform_driver(sun9i_a80_r_pinctrl_driver);
179