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	pinctrl-names = "default";
82	pinctrl-0 = <&i2c0_pins_a>;
83	status = "okay";
84
85	axp209: pmic@34 {
86		reg = <0x34>;
87		interrupts = <0>;
88	};
89};
90
91#include "axp209.dtsi"
92
93&i2c1 {
94	pinctrl-names = "default";
95	pinctrl-0 = <&i2c1_pins_a>;
96	status = "okay";
97
98	pcf8563: rtc@51 {
99		compatible = "nxp,pcf8563";
100		reg = <0x51>;
101	};
102};
103
104&lradc {
105	vref-supply = <&reg_ldo2>;
106	status = "okay";
107
108	button@200 {
109		label = "Volume Up";
110		linux,code = <KEY_VOLUMEUP>;
111		channel = <0>;
112		voltage = <200000>;
113	};
114
115	button@400 {
116		label = "Volume Down";
117		linux,code = <KEY_VOLUMEDOWN>;
118		channel = <0>;
119		voltage = <400000>;
120	};
121};
122
123&mmc0 {
124	pinctrl-names = "default";
125	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_d709>;
126	vmmc-supply = <&reg_vcc3v3>;
127	bus-width = <4>;
128	cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
129	status = "okay";
130};
131
132&otg_sram {
133	status = "okay";
134};
135
136&pio {
137	mmc0_cd_pin_d709: mmc0_cd_pin@0 {
138		pins = "PG0";
139		function = "gpio_in";
140		bias-pull-up;
141	};
142
143	usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 {
144		pins = "PG1";
145		function = "gpio_in";
146		bias-pull-down;
147	};
148
149	usb0_id_detect_pin: usb0_id_detect_pin@0 {
150		pins = "PG2";
151		function = "gpio_in";
152		bias-pull-up;
153	};
154};
155
156&pwm {
157	pinctrl-names = "default";
158	pinctrl-0 = <&pwm0_pins>;
159	status = "okay";
160};
161
162&reg_dcdc2 {
163	regulator-always-on;
164	regulator-min-microvolt = <1000000>;
165	regulator-max-microvolt = <1400000>;
166	regulator-name = "vdd-cpu";
167};
168
169&reg_dcdc3 {
170	regulator-always-on;
171	regulator-min-microvolt = <1250000>;
172	regulator-max-microvolt = <1250000>;
173	regulator-name = "vdd-int-pll";
174};
175
176&reg_ldo1 {
177	regulator-name = "vdd-rtc";
178};
179
180&reg_ldo2 {
181	regulator-always-on;
182	regulator-min-microvolt = <3000000>;
183	regulator-max-microvolt = <3000000>;
184	regulator-name = "avcc";
185};
186
187&reg_ldo3 {
188	regulator-min-microvolt = <3300000>;
189	regulator-max-microvolt = <3300000>;
190	regulator-name = "vcc-wifi";
191};
192
193&reg_usb0_vbus {
194	gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
195	status = "okay";
196};
197
198&uart1 {
199	pinctrl-names = "default";
200	pinctrl-0 = <&uart1_pins_b>;
201	status = "okay";
202};
203
204&usb_otg {
205	dr_mode = "otg";
206	status = "okay";
207};
208
209&usbphy {
210	pinctrl-names = "default";
211	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
212	usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
213	usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */
214	usb0_vbus-supply = <&reg_usb0_vbus>;
215	usb1_vbus-supply = <&reg_ldo3>;
216	status = "okay";
217};
218