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#include "sunxi-reference-design-tablet.dtsi"
 43
 44#include <dt-bindings/interrupt-controller/irq.h>
 45#include <dt-bindings/pwm/pwm.h>
 46
 47/ {
 48	aliases {
 49		serial0 = &uart1;
 50	};
 51
 52	backlight: backlight {
 53		compatible = "pwm-backlight";
 54		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
 55		brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
 56		default-brightness-level = <8>;
 57		enable-gpios = <&axp_gpio 1 GPIO_ACTIVE_HIGH>; /* AXP GPIO1 */
 58	};
 59
 60	chosen {
 61		stdout-path = "serial0:115200n8";
 62	};
 63};
 64
 65&codec {
 66	allwinner,pa-gpios = <&pio 6 10 GPIO_ACTIVE_HIGH>; /* PG10 */
 67	status = "okay";
 68};
 69
 70&cpu0 {
 71	cpu-supply = <&reg_dcdc2>;
 72};
 73
 74&ehci0 {
 75	status = "okay";
 76};
 77
 78&i2c0 {
 79	axp209: pmic@34 {
 80		reg = <0x34>;
 81		interrupts = <0>;
 82	};
 83};
 84
 85&i2c1 {
 86	/*
 87	 * The gsl1680 is rated at 400KHz and it will not work reliable at
 88	 * 100KHz, this has been confirmed on multiple different q8 tablets.
 89	 * All other devices on this bus are also rated for 400KHz.
 90	 */
 91	clock-frequency = <400000>;
 92
 93	touchscreen: touchscreen@40 {
 94		reg = <0x40>;
 95		interrupt-parent = <&pio>;
 96		interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>; /* EINT11 (PG11) */
 97		power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
 98		/* Tablet dts must provide reg and compatible */
 99		status = "disabled";
100	};
101
102	pcf8563: rtc@51 {
103		compatible = "nxp,pcf8563";
104		reg = <0x51>;
105	};
106};
107
108#include "axp209.dtsi"
109
110&ac_power_supply {
111	status = "okay";
112};
113
114&battery_power_supply {
115	status = "okay";
116};
117
118&lradc {
119	vref-supply = <&reg_ldo2>;
120};
121
122&mmc0 {
123	pinctrl-names = "default";
124	pinctrl-0 = <&mmc0_pins>;
125	vmmc-supply = <&reg_vcc3v0>;
126	bus-width = <4>;
127	cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
128	status = "okay";
129};
130
131&otg_sram {
132	status = "okay";
133};
134
135&reg_dcdc2 {
136	regulator-always-on;
137	regulator-min-microvolt = <1000000>;
138	regulator-max-microvolt = <1500000>;
139	regulator-name = "vdd-cpu";
140};
141
142&reg_dcdc3 {
143	regulator-always-on;
144	regulator-min-microvolt = <1000000>;
145	regulator-max-microvolt = <1400000>;
146	regulator-name = "vdd-int-pll";
147};
148
149&reg_ldo1 {
150	regulator-name = "vdd-rtc";
151};
152
153&reg_ldo2 {
154	regulator-always-on;
155	regulator-min-microvolt = <3000000>;
156	regulator-max-microvolt = <3000000>;
157	regulator-name = "avcc";
158};
159
160&reg_ldo3 {
161	regulator-min-microvolt = <3300000>;
162	regulator-max-microvolt = <3300000>;
163	regulator-name = "vcc-wifi";
164};
165
166&reg_usb0_vbus {
167	gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
168	status = "okay";
169};
170
171&uart1 {
172	pinctrl-names = "default";
173	pinctrl-0 = <&uart1_pg_pins>;
174	status = "okay";
175};
176
177&usb_otg {
178	dr_mode = "otg";
179	status = "okay";
180};
181
182&usb_power_supply {
183	status = "okay";
184};
185
186&usbphy {
187	usb0_id_det-gpios = <&pio 6 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PG2 */
188	usb0_vbus_det-gpios = <&pio 6 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; /* PG1 */
189	usb0_vbus_power-supply = <&usb_power_supply>;
190	usb0_vbus-supply = <&reg_usb0_vbus>;
191	usb1_vbus-supply = <&reg_ldo3>;
192	status = "okay";
193};