1/*
  2 * Copyright 2015 Priit Laes
  3 *
  4 * Priit Laes <plaes@plaes.org>
  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 "sun4i-a10.dtsi"
 47#include "sunxi-common-regulators.dtsi"
 48#include <dt-bindings/gpio/gpio.h>
 49#include <dt-bindings/input/input.h>
 50#include <dt-bindings/interrupt-controller/irq.h>
 51
 52/ {
 53	model = "Gemei G9 Tablet";
 54	compatible = "gemei,g9", "allwinner,sun4i-a10";
 55
 56	aliases {
 57		serial0 = &uart0;
 58	};
 59
 60	chosen {
 61		stdout-path = "serial0:115200n8";
 62	};
 63};
 64
 65/*
 66 * TODO:
 67 *   2x cameras via CSI
 68 *   AXP battery management
 69 *   NAND
 70 *   OTG
 71 *   Touchscreen - gt801_2plus1 @ i2c adapter 2 @ 0x48
 72 */
 73&codec {
 74	/* PH15 controls power to external amplifier (ft2012q) */
 75	pinctrl-names = "default";
 76	pinctrl-0 = <&codec_pa_pin>;
 77	allwinner,pa-gpios = <&pio 7 15 GPIO_ACTIVE_HIGH>;
 78	status = "okay";
 79};
 80
 81&cpu0 {
 82	cpu-supply = <&reg_dcdc2>;
 83};
 84
 85&ehci0 {
 86	status = "okay";
 87};
 88
 89&ehci1 {
 90	status = "okay";
 91};
 92
 93&i2c0 {
 94	pinctrl-names = "default";
 95	pinctrl-0 = <&i2c0_pins_a>;
 96	status = "okay";
 97
 98	axp209: pmic@34 {
 99		reg = <0x34>;
100		interrupts = <0>;
101	};
102};
103
104#include "axp209.dtsi"
105
106&i2c1 {
107	pinctrl-names = "default";
108	pinctrl-0 = <&i2c1_pins_a>;
109	status = "okay";
110
111	/* Accelerometer */
112	bma250@18 {
113		compatible = "bosch,bma250";
114		reg = <0x18>;
115		interrupt-parent = <&pio>;
116		interrupts = <7 0 IRQ_TYPE_EDGE_RISING>; /* PH00 / EINT0 */
117	};
118};
119
120&lradc {
121	vref-supply = <&reg_ldo2>;
122
123	status = "okay";
124
125	button@158 {
126		label = "Volume Down";
127		linux,code = <KEY_VOLUMEDOWN>;
128		channel = <0>;
129		voltage = <158730>;
130	};
131
132	button@349 {
133		label = "Volume Up";
134		linux,code = <KEY_VOLUMEUP>;
135		channel = <0>;
136		voltage = <349206>;
137	};
138
139	button@1142 {
140		label = "Esc";
141		linux,code = <KEY_ESC>;
142		channel = <0>;
143		voltage = <1142856>;
144	};
145};
146
147&mmc0 {
148	pinctrl-names = "default";
149	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
150	vmmc-supply = <&reg_vcc3v3>;
151	bus-width = <4>;
152	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH01 */
153	cd-inverted;
154	status = "okay";
155};
156
157&pio {
158	codec_pa_pin: codec_pa_pin@0 {
159		allwinner,pins = "PH15";
160		allwinner,function = "gpio_out";
161		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
162		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
163	};
164};
165
166&reg_dcdc2 {
167	regulator-always-on;
168	regulator-min-microvolt = <1000000>;
169	regulator-max-microvolt = <1400000>;
170	regulator-name = "vdd-cpu";
171};
172
173&reg_dcdc3 {
174	regulator-always-on;
175	regulator-min-microvolt = <1250000>;
176	regulator-max-microvolt = <1250000>;
177	regulator-name = "vdd-int-dll";
178};
179
180&reg_ldo1 {
181	regulator-name = "vdd-rtc";
182};
183
184&reg_ldo2 {
185	regulator-always-on;
186	regulator-min-microvolt = <3000000>;
187	regulator-max-microvolt = <3000000>;
188	regulator-name = "avcc";
189};
190
191&reg_usb1_vbus {
192	status = "okay";
193};
194
195&reg_usb2_vbus {
196	status = "okay";
197};
198
199
200&uart0  {
201	pinctrl-names = "default";
202	pinctrl-0 = <&uart0_pins_a>;
203	status = "okay";
204};
205
206&usbphy {
207	usb1_vbus-supply = <&reg_usb1_vbus>;
208	usb2_vbus-supply = <&reg_usb2_vbus>;
209	status = "okay";
210};