1/*
  2 * Copyright 2015 Hans de Goede <hdegoede@redhat.com>
  3 *
  4 * This file is dual-licensed: you can use it either under the terms
  5 * of the GPL or the X11 license, at your option. Note that this dual
  6 * licensing only applies to this file, and not this project as a
  7 * whole.
  8 *
  9 *  a) This file is free software; you can redistribute it and/or
 10 *     modify it under the terms of the GNU General Public License as
 11 *     published by the Free Software Foundation; either version 2 of the
 12 *     License, or (at your option) any later version.
 13 *
 14 *     This file is distributed in the hope that it will be useful,
 15 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 16 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17 *     GNU General Public License for more details.
 18 *
 19 * Or, alternatively,
 20 *
 21 *  b) Permission is hereby granted, free of charge, to any person
 22 *     obtaining a copy of this software and associated documentation
 23 *     files (the "Software"), to deal in the Software without
 24 *     restriction, including without limitation the rights to use,
 25 *     copy, modify, merge, publish, distribute, sublicense, and/or
 26 *     sell copies of the Software, and to permit persons to whom the
 27 *     Software is furnished to do so, subject to the following
 28 *     conditions:
 29 *
 30 *     The above copyright notice and this permission notice shall be
 31 *     included in all copies or substantial portions of the Software.
 32 *
 33 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 34 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 35 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 36 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 37 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 38 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 39 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 40 *     OTHER DEALINGS IN THE SOFTWARE.
 41 */
 42
 43/dts-v1/;
 44#include "sun5i-a13.dtsi"
 45#include "sunxi-common-regulators.dtsi"
 46#include <dt-bindings/gpio/gpio.h>
 47#include <dt-bindings/input/input.h>
 48#include <dt-bindings/interrupt-controller/irq.h>
 49#include <dt-bindings/pwm/pwm.h>
 50
 51/ {
 52	model = "Empire Electronix D709 tablet";
 53	compatible = "empire-electronix,d709", "allwinner,sun5i-a13";
 54
 55	aliases {
 56		serial0 = &uart1;
 57	};
 58
 59	backlight: backlight {
 60		compatible = "pwm-backlight";
 61		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
 62		brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
 63		default-brightness-level = <8>;
 64		/* TODO: backlight uses axp gpio1 as enable pin */
 65	};
 66
 67	chosen {
 68		stdout-path = "serial0:115200n8";
 69	};
 70};
 71
 72&cpu0 {
 73	cpu-supply = <&reg_dcdc2>;
 74};
 75
 76&ehci0 {
 77	status = "okay";
 78};
 79
 80&i2c0 {
 81	status = "okay";
 82
 83	axp209: pmic@34 {
 84		reg = <0x34>;
 85		interrupts = <0>;
 86	};
 87};
 88
 89#include "axp209.dtsi"
 90
 91&i2c1 {
 92	status = "okay";
 93
 94	pcf8563: rtc@51 {
 95		compatible = "nxp,pcf8563";
 96		reg = <0x51>;
 97	};
 98};
 99
100&lradc {
101	vref-supply = <&reg_ldo2>;
102	status = "okay";
103
104	button-200 {
105		label = "Volume Up";
106		linux,code = <KEY_VOLUMEUP>;
107		channel = <0>;
108		voltage = <200000>;
109	};
110
111	button-400 {
112		label = "Volume Down";
113		linux,code = <KEY_VOLUMEDOWN>;
114		channel = <0>;
115		voltage = <400000>;
116	};
117};
118
119&mmc0 {
120	vmmc-supply = <&reg_vcc3v3>;
121	bus-width = <4>;
122	cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
123	status = "okay";
124};
125
126&otg_sram {
127	status = "okay";
128};
129
130&pwm {
131	pinctrl-names = "default";
132	pinctrl-0 = <&pwm0_pin>;
133	status = "okay";
134};
135
136&reg_dcdc2 {
137	regulator-always-on;
138	regulator-min-microvolt = <1000000>;
139	regulator-max-microvolt = <1400000>;
140	regulator-name = "vdd-cpu";
141};
142
143&reg_dcdc3 {
144	regulator-always-on;
145	regulator-min-microvolt = <1250000>;
146	regulator-max-microvolt = <1250000>;
147	regulator-name = "vdd-int-pll";
148};
149
150&reg_ldo1 {
151	regulator-name = "vdd-rtc";
152};
153
154&reg_ldo2 {
155	regulator-always-on;
156	regulator-min-microvolt = <3000000>;
157	regulator-max-microvolt = <3000000>;
158	regulator-name = "avcc";
159};
160
161&reg_ldo3 {
162	regulator-min-microvolt = <3300000>;
163	regulator-max-microvolt = <3300000>;
164	regulator-name = "vcc-wifi";
165};
166
167&reg_usb0_vbus {
168	gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
169	status = "okay";
170};
171
172&uart1 {
173	pinctrl-names = "default";
174	pinctrl-0 = <&uart1_pg_pins>;
175	status = "okay";
176};
177
178&usb_otg {
179	dr_mode = "otg";
180	status = "okay";
181};
182
183&usbphy {
184	usb0_id_det-gpios = <&pio 6 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PG2 */
185	usb0_vbus_det-gpios = <&pio 6 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; /* PG1 */
186	usb0_vbus-supply = <&reg_usb0_vbus>;
187	usb1_vbus-supply = <&reg_ldo3>;
188	status = "okay";
189};