xref: /linux/arch/arm/boot/dts/allwinner/sun5i-reference-design-tablet.dtsi (revision 0e2b2a76278153d1ac312b0691cb65dabb9aef3e) 
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		power-supply = <&reg_vcc3v0>;
59	};
60
61	chosen {
62		stdout-path = "serial0:115200n8";
63	};
64};
65
66&codec {
67	allwinner,pa-gpios = <&pio 6 10 GPIO_ACTIVE_HIGH>; /* PG10 */
68	status = "okay";
69};
70
71&cpu0 {
72	cpu-supply = <&reg_dcdc2>;
73};
74
75&ehci0 {
76	status = "okay";
77};
78
79&i2c0 {
80	axp209: pmic@34 {
81		reg = <0x34>;
82		interrupts = <0>;
83	};
84};
85
86&i2c1 {
87	/*
88	 * The gsl1680 is rated at 400KHz and it will not work reliable at
89	 * 100KHz, this has been confirmed on multiple different q8 tablets.
90	 * All other devices on this bus are also rated for 400KHz.
91	 */
92	clock-frequency = <400000>;
93
94	touchscreen: touchscreen@40 {
95		reg = <0x40>;
96		interrupt-parent = <&pio>;
97		interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>; /* EINT11 (PG11) */
98		power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
99		/* Tablet dts must provide reg and compatible */
100		status = "disabled";
101	};
102
103	pcf8563: rtc@51 {
104		compatible = "nxp,pcf8563";
105		reg = <0x51>;
106	};
107};
108
109#include "axp209.dtsi"
110
111&ac_power_supply {
112	status = "okay";
113};
114
115&battery_power_supply {
116	status = "okay";
117};
118
119&lradc {
120	vref-supply = <&reg_ldo2>;
121};
122
123&mmc0 {
124	pinctrl-names = "default";
125	pinctrl-0 = <&mmc0_pins>;
126	vmmc-supply = <&reg_vcc3v0>;
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&reg_dcdc2 {
137	regulator-always-on;
138	regulator-min-microvolt = <1000000>;
139	regulator-max-microvolt = <1500000>;
140	regulator-name = "vdd-cpu";
141};
142
143&reg_dcdc3 {
144	regulator-always-on;
145	regulator-min-microvolt = <1000000>;
146	regulator-max-microvolt = <1400000>;
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&usb_power_supply {
184	status = "okay";
185};
186
187&usbphy {
188	usb0_id_det-gpios = <&pio 6 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PG2 */
189	usb0_vbus_det-gpios = <&pio 6 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; /* PG1 */
190	usb0_vbus_power-supply = <&usb_power_supply>;
191	usb0_vbus-supply = <&reg_usb0_vbus>;
192	usb1_vbus-supply = <&reg_ldo3>;
193	status = "okay";
194};
195