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5f688389 MR |
1 | /* |
2 | * Copyright 2015 Maxime Ripard | |
3 | * | |
4 | * Maxime Ripard <maxime.ripard@free-electrons.com> | |
5 | * | |
6 | * This file is dual-licensed: you can use it either under the terms | |
7 | * of the GPL or the X11 license, at your option. Note that this dual | |
8 | * licensing only applies to this file, and not this project as a | |
9 | * whole. | |
10 | * | |
11 | * a) This file is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License as | |
13 | * published by the Free Software Foundation; either version 2 of the | |
14 | * License, or (at your option) any later version. | |
15 | * | |
16 | * This file is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * Or, alternatively, | |
22 | * | |
23 | * b) Permission is hereby granted, free of charge, to any person | |
24 | * obtaining a copy of this software and associated documentation | |
25 | * files (the "Software"), to deal in the Software without | |
26 | * restriction, including without limitation the rights to use, | |
27 | * copy, modify, merge, publish, distribute, sublicense, and/or | |
28 | * sell copies of the Software, and to permit persons to whom the | |
29 | * Software is furnished to do so, subject to the following | |
30 | * conditions: | |
31 | * | |
32 | * The above copyright notice and this permission notice shall be | |
33 | * included in all copies or substantial portions of the Software. | |
34 | * | |
35 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
36 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | |
37 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
38 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
39 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
40 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
41 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
42 | * OTHER DEALINGS IN THE SOFTWARE. | |
43 | */ | |
44 | ||
45 | /dts-v1/; | |
46 | #include "sun8i-a23.dtsi" | |
47 | #include "sunxi-common-regulators.dtsi" | |
48 | ||
49 | #include <dt-bindings/gpio/gpio.h> | |
50 | #include <dt-bindings/input/input.h> | |
51 | #include <dt-bindings/pinctrl/sun4i-a10.h> | |
52 | ||
53 | / { | |
54 | model = "Allwinner A23 Evaluation Board"; | |
55 | compatible = "allwinner,sun8i-a23-evb", "allwinner,sun8i-a23"; | |
56 | ||
57 | aliases { | |
58 | i2c0 = &i2c0; | |
59 | i2c1 = &i2c1; | |
60 | serial0 = &r_uart; | |
61 | }; | |
62 | ||
63 | chosen { | |
64 | stdout-path = "serial0:115200n8"; | |
65 | }; | |
66 | }; | |
67 | ||
68 | &i2c0 { | |
69 | pinctrl-names = "default"; | |
70 | pinctrl-0 = <&i2c0_pins_a>; | |
71 | status = "okay"; | |
72 | }; | |
73 | ||
74 | &i2c1 { | |
75 | pinctrl-names = "default"; | |
76 | pinctrl-0 = <&i2c1_pins_a>; | |
77 | status = "okay"; | |
78 | }; | |
79 | ||
80 | &lradc { | |
81 | vref-supply = <®_vcc3v0>; | |
82 | status = "okay"; | |
83 | ||
84 | button@190 { | |
85 | label = "Volume Up"; | |
86 | linux,code = <KEY_VOLUMEUP>; | |
87 | channel = <0>; | |
88 | voltage = <190000>; | |
89 | }; | |
90 | ||
91 | button@390 { | |
92 | label = "Volume Down"; | |
93 | linux,code = <KEY_VOLUMEDOWN>; | |
94 | channel = <0>; | |
95 | voltage = <390000>; | |
96 | }; | |
97 | ||
98 | button@600 { | |
99 | label = "Home"; | |
100 | linux,code = <KEY_HOME>; | |
101 | channel = <0>; | |
102 | voltage = <600000>; | |
103 | }; | |
104 | }; | |
105 | ||
106 | &mmc0 { | |
107 | pinctrl-names = "default"; | |
108 | pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_evb>; | |
109 | vmmc-supply = <®_vcc3v0>; | |
110 | bus-width = <4>; | |
111 | cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */ | |
112 | cd-inverted; | |
113 | status = "okay"; | |
114 | }; | |
115 | ||
116 | &pio { | |
117 | mmc0_cd_pin_evb: mmc0_cd_pin@0 { | |
118 | allwinner,pins = "PB4"; | |
119 | allwinner,function = "gpio_in"; | |
120 | allwinner,drive = <SUN4I_PINCTRL_10_MA>; | |
121 | allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; | |
122 | }; | |
123 | }; | |
124 | ||
125 | /* | |
126 | * The RX line has a non-populated resistance. In order to use it, you | |
127 | * need to solder R207 on the back of the board in order to close the | |
128 | * line and get a working UART. | |
129 | */ | |
130 | &r_uart { | |
131 | pinctrl-names = "default"; | |
132 | pinctrl-0 = <&r_uart_pins_a>; | |
133 | status = "okay"; | |
134 | }; |