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};