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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> | |
5f688389 MR |
51 | |
52 | / { | |
53 | model = "Allwinner A23 Evaluation Board"; | |
54 | compatible = "allwinner,sun8i-a23-evb", "allwinner,sun8i-a23"; | |
55 | ||
56 | aliases { | |
57 | i2c0 = &i2c0; | |
58 | i2c1 = &i2c1; | |
59 | serial0 = &r_uart; | |
60 | }; | |
61 | ||
62 | chosen { | |
63 | stdout-path = "serial0:115200n8"; | |
64 | }; | |
65 | }; | |
66 | ||
67 | &i2c0 { | |
68 | pinctrl-names = "default"; | |
69 | pinctrl-0 = <&i2c0_pins_a>; | |
70 | status = "okay"; | |
71 | }; | |
72 | ||
73 | &i2c1 { | |
74 | pinctrl-names = "default"; | |
75 | pinctrl-0 = <&i2c1_pins_a>; | |
76 | status = "okay"; | |
77 | }; | |
78 | ||
79 | &lradc { | |
80 | vref-supply = <®_vcc3v0>; | |
81 | status = "okay"; | |
82 | ||
83 | button@190 { | |
84 | label = "Volume Up"; | |
85 | linux,code = <KEY_VOLUMEUP>; | |
86 | channel = <0>; | |
87 | voltage = <190000>; | |
88 | }; | |
89 | ||
90 | button@390 { | |
91 | label = "Volume Down"; | |
92 | linux,code = <KEY_VOLUMEDOWN>; | |
93 | channel = <0>; | |
94 | voltage = <390000>; | |
95 | }; | |
96 | ||
97 | button@600 { | |
98 | label = "Home"; | |
99 | linux,code = <KEY_HOME>; | |
100 | channel = <0>; | |
101 | voltage = <600000>; | |
102 | }; | |
103 | }; | |
104 | ||
105 | &mmc0 { | |
106 | pinctrl-names = "default"; | |
107 | pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_evb>; | |
108 | vmmc-supply = <®_vcc3v0>; | |
109 | bus-width = <4>; | |
45e01f40 | 110 | cd-gpios = <&pio 1 4 GPIO_ACTIVE_LOW>; /* PB4 */ |
5f688389 MR |
111 | status = "okay"; |
112 | }; | |
113 | ||
114 | &pio { | |
115 | mmc0_cd_pin_evb: mmc0_cd_pin@0 { | |
1edcd36f MR |
116 | pins = "PB4"; |
117 | function = "gpio_in"; | |
118 | bias-pull-up; | |
5f688389 MR |
119 | }; |
120 | }; | |
121 | ||
122 | /* | |
123 | * The RX line has a non-populated resistance. In order to use it, you | |
124 | * need to solder R207 on the back of the board in order to close the | |
125 | * line and get a working UART. | |
126 | */ | |
127 | &r_uart { | |
128 | pinctrl-names = "default"; | |
129 | pinctrl-0 = <&r_uart_pins_a>; | |
130 | status = "okay"; | |
131 | }; |