1/*
2 * Copyright 2016 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 "sun6i-a31s.dtsi"
45#include "sunxi-common-regulators.dtsi"
46
47#include <dt-bindings/gpio/gpio.h>
48#include <dt-bindings/input/input.h>
49#include <dt-bindings/pinctrl/sun4i-a10.h>
50
51/ {
52	model = "Colorfly E708 Q1 tablet";
53	compatible = "colorfly,e708-q1", "allwinner,sun6i-a31s";
54
55	aliases {
56		serial0 = &uart0;
57	};
58
59	chosen {
60		stdout-path = "serial0:115200n8";
61	};
62};
63
64&cpu0 {
65	cpu-supply = <&reg_dcdc3>;
66};
67
68&ehci0 {
69	/* rtl8188etv wifi is connected here */
70	status = "okay";
71};
72
73&lradc {
74	vref-supply = <&reg_aldo3>;
75	status = "okay";
76
77	button@1000 {
78		label = "Home";
79		linux,code = <KEY_HOMEPAGE>;
80		channel = <0>;
81		voltage = <1000000>;
82	};
83};
84
85&mmc0 {
86	pinctrl-names = "default";
87	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_e708_q1>;
88	vmmc-supply = <&reg_dcdc1>;
89	bus-width = <4>;
90	cd-gpios = <&pio 0 8 GPIO_ACTIVE_HIGH>; /* PA8 */
91	cd-inverted;
92	status = "okay";
93};
94
95&pio {
96	mma8452_int_e708_q1: mma8452_int_pin@0 {
97		allwinner,pins = "PA9";
98		allwinner,function = "gpio_in";
99		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
100		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
101	};
102
103	mmc0_cd_pin_e708_q1: mmc0_cd_pin@0 {
104		allwinner,pins = "PA8";
105		allwinner,function = "gpio_in";
106		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
107		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
108	};
109};
110
111&p2wi {
112	status = "okay";
113
114	axp22x: pmic@68 {
115		compatible = "x-powers,axp221";
116		reg = <0x68>;
117		interrupt-parent = <&nmi_intc>;
118		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
119	};
120};
121
122#include "axp22x.dtsi"
123
124&reg_aldo3 {
125	regulator-always-on;
126	regulator-min-microvolt = <2700000>;
127	regulator-max-microvolt = <3300000>;
128	regulator-name = "avcc";
129};
130
131&reg_dc1sw {
132	regulator-name = "vcc-lcd";
133};
134
135&reg_dc5ldo {
136	regulator-always-on;
137	regulator-min-microvolt = <700000>;
138	regulator-max-microvolt = <1320000>;
139	regulator-name = "vdd-cpus"; /* This is an educated guess */
140};
141
142&reg_dcdc1 {
143	regulator-always-on;
144	regulator-min-microvolt = <3000000>;
145	regulator-max-microvolt = <3000000>;
146	regulator-name = "vcc-3v0";
147};
148
149&reg_dcdc2 {
150	regulator-min-microvolt = <700000>;
151	regulator-max-microvolt = <1320000>;
152	regulator-name = "vdd-gpu";
153};
154
155&reg_dcdc3 {
156	regulator-always-on;
157	regulator-min-microvolt = <700000>;
158	regulator-max-microvolt = <1320000>;
159	regulator-name = "vdd-cpu";
160};
161
162&reg_dcdc4 {
163	regulator-always-on;
164	regulator-min-microvolt = <700000>;
165	regulator-max-microvolt = <1320000>;
166	regulator-name = "vdd-sys-dll";
167};
168
169&reg_dcdc5 {
170	regulator-always-on;
171	regulator-min-microvolt = <1500000>;
172	regulator-max-microvolt = <1500000>;
173	regulator-name = "vcc-dram";
174};
175
176&reg_dldo1 {
177	regulator-min-microvolt = <3300000>;
178	regulator-max-microvolt = <3300000>;
179	regulator-name = "vcc-wifi";
180};
181
182&reg_dldo2 {
183	regulator-min-microvolt = <1800000>;
184	regulator-max-microvolt = <1800000>;
185	regulator-name = "vcc-pg";
186};
187
188&simplefb_lcd {
189	vcc-lcd-supply = <&reg_dc1sw>;
190	vcc-pg-supply = <&reg_dldo2>;
191};
192
193/*
194 * FIXME for now we only support host mode and rely on u-boot to have
195 * turned on Vbus which is controlled by the axp221 pmic on the board.
196 *
197 * Once we have axp221 power-supply and vbus-usb support we should switch
198 * to fully supporting otg.
199 */
200&usb_otg {
201	dr_mode = "host";
202	status = "okay";
203};
204
205&usbphy {
206	usb1_vbus-supply = <&reg_dldo1>;
207	status = "okay";
208};
209