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Hans de Goede6b3e71a2016-03-14 17:35:12 +01001/*
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 "sun8i-a23.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#include <dt-bindings/pwm/pwm.h>
51
52/ {
53 model = "Polaroid MID2809PXE04 tablet";
54 compatible = "polaroid,mid2809pxe04", "allwinner,sun8i-a23";
55
56 aliases {
57 serial0 = &r_uart;
58 };
59
60 backlight: backlight {
61 compatible = "pwm-backlight";
62 pinctrl-names = "default";
63 pinctrl-0 = <&bl_en_pin_mid2809>;
64 pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
65 brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
66 default-brightness-level = <8>;
67 enable-gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
68 };
69
70 chosen {
71 stdout-path = "serial0:115200n8";
72 };
73};
74
75&ehci0 {
76 status = "okay";
77};
78
79&i2c0 {
80 pinctrl-names = "default";
81 pinctrl-0 = <&i2c0_pins_a>;
82 status = "okay";
83};
84
85&i2c1 {
86 pinctrl-names = "default";
87 pinctrl-0 = <&i2c1_pins_a>;
88 status = "okay";
89};
90
91&lradc {
92 vref-supply = <&reg_vcc3v0>;
93 status = "okay";
94
95 button@200 {
96 label = "Volume Up";
97 linux,code = <KEY_VOLUMEUP>;
98 channel = <0>;
99 voltage = <200000>;
100 };
101
102 button@400 {
103 label = "Volume Down";
104 linux,code = <KEY_VOLUMEDOWN>;
105 channel = <0>;
106 voltage = <400000>;
107 };
108};
109
110&mmc0 {
111 pinctrl-names = "default";
112 pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_mid2809>;
113 vmmc-supply = <&reg_dcdc1>;
114 bus-width = <4>;
115 cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */
116 cd-inverted;
117 status = "okay";
118};
119
120&pio {
121 bl_en_pin_mid2809: bl_en_pin@0 {
122 allwinner,pins = "PH6";
123 allwinner,function = "gpio_in";
124 allwinner,drive = <SUN4I_PINCTRL_10_MA>;
125 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
126 };
127
128 mmc0_cd_pin_mid2809: mmc0_cd_pin@0 {
129 allwinner,pins = "PB4";
130 allwinner,function = "gpio_in";
131 allwinner,drive = <SUN4I_PINCTRL_10_MA>;
132 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
133 };
134};
135
136&pwm {
137 pinctrl-names = "default";
138 pinctrl-0 = <&pwm0_pins>;
139 status = "okay";
140};
141
142&r_rsb {
143 status = "okay";
144
145 axp22x: pmic@3a3 {
146 compatible = "x-powers,axp223";
147 reg = <0x3a3>;
148 interrupt-parent = <&nmi_intc>;
149 interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
150 eldoin-supply = <&reg_dcdc1>;
151 };
152};
153
154&r_uart {
155 pinctrl-names = "default";
156 pinctrl-0 = <&r_uart_pins_a>;
157 status = "okay";
158};
159
160#include "axp22x.dtsi"
161
162&reg_aldo1 {
163 regulator-always-on;
164 regulator-min-microvolt = <3000000>;
165 regulator-max-microvolt = <3000000>;
166 regulator-name = "vcc-io";
167};
168
169&reg_aldo2 {
170 regulator-always-on;
171 regulator-min-microvolt = <2350000>;
172 regulator-max-microvolt = <2650000>;
173 regulator-name = "vdd-dll";
174};
175
176&reg_aldo3 {
177 regulator-always-on;
178 regulator-min-microvolt = <2700000>;
179 regulator-max-microvolt = <3300000>;
180 regulator-name = "vcc-pll-avcc";
181};
182
183&reg_dc1sw {
184 regulator-name = "vcc-lcd";
185};
186
187&reg_dc5ldo {
188 regulator-always-on;
189 regulator-min-microvolt = <900000>;
190 regulator-max-microvolt = <1400000>;
191 regulator-name = "vdd-cpus";
192};
193
194&reg_dcdc1 {
195 regulator-always-on;
196 regulator-min-microvolt = <3000000>;
197 regulator-max-microvolt = <3000000>;
198 regulator-name = "vcc-3v0";
199};
200
201&reg_dcdc2 {
202 regulator-always-on;
203 regulator-min-microvolt = <900000>;
204 regulator-max-microvolt = <1400000>;
205 regulator-name = "vdd-sys";
206};
207
208&reg_dcdc3 {
209 regulator-always-on;
210 regulator-min-microvolt = <900000>;
211 regulator-max-microvolt = <1400000>;
212 regulator-name = "vdd-cpu";
213};
214
215&reg_dcdc5 {
216 regulator-always-on;
217 regulator-min-microvolt = <1500000>;
218 regulator-max-microvolt = <1500000>;
219 regulator-name = "vcc-dram";
220};
221
222&reg_rtc_ldo {
223 regulator-name = "vcc-rtc";
224};
225
226&simplefb_lcd {
227 vcc-lcd-supply = <&reg_dc1sw>;
228};
229
230/*
231 * FIXME for now we only support host mode and rely on u-boot to have
232 * turned on Vbus which is controlled by the axp223 pmic on the board.
233 *
234 * Once we have axp223 support we should switch to fully supporting otg.
235 */
236&usb_otg {
237 dr_mode = "host";
238 status = "okay";
239};
240
241&usbphy {
242 status = "okay";
243};