xref: /linux/scripts/dtc/include-prefixes/arm/allwinner/sun8i-a23-evb.dts (revision cdd5b5a9761fd66d17586e4f4ba6588c70e640ea) 
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
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	status = "okay";
69};
70
71&i2c1 {
72	status = "okay";
73};
74
75&lradc {
76	vref-supply = <&reg_vcc3v0>;
77	status = "okay";
78
79	button-190 {
80		label = "Volume Up";
81		linux,code = <KEY_VOLUMEUP>;
82		channel = <0>;
83		voltage = <190000>;
84	};
85
86	button-390 {
87		label = "Volume Down";
88		linux,code = <KEY_VOLUMEDOWN>;
89		channel = <0>;
90		voltage = <390000>;
91	};
92
93	button-600 {
94		label = "Home";
95		linux,code = <KEY_HOME>;
96		channel = <0>;
97		voltage = <600000>;
98	};
99};
100
101&mmc0 {
102	vmmc-supply = <&reg_vcc3v0>;
103	bus-width = <4>;
104	cd-gpios = <&pio 1 4 GPIO_ACTIVE_LOW>; /* PB4 */
105	status = "okay";
106};
107
108/*
109 * The RX line has a non-populated resistance. In order to use it, you
110 * need to solder R207 on the back of the board in order to close the
111 * line and get a working UART.
112 */
113&r_uart {
114	pinctrl-names = "default";
115	pinctrl-0 = <&r_uart_pins_a>;
116	status = "okay";
117};
118