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1/*
2 * Copyright 2016 Free Electrons
3 * Copyright 2016 NextThing Co
4 *
5 * Mylène Josserand <mylene.josserand@free-electrons.com>
6 *
7 * This file is dual-licensed: you can use it either under the terms
8 * of the GPL or the X11 license, at your option. Note that this dual
9 * licensing only applies to this file, and not this project as a
10 * whole.
11 *
12 *  a) This file is free software; you can redistribute it and/or
13 *     modify it under the terms of the GNU General Public License as
14 *     published by the Free Software Foundation; either version 2 of the
15 *     License, or (at your option) any later version.
16 *
17 *     This file is distributed in the hope that it will be useful,
18 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
19 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 *     GNU General Public License for more details.
21 *
22 * Or, alternatively,
23 *
24 *  b) Permission is hereby granted, free of charge, to any person
25 *     obtaining a copy of this software and associated documentation
26 *     files (the "Software"), to deal in the Software without
27 *     restriction, including without limitation the rights to use,
28 *     copy, modify, merge, publish, distribute, sublicense, and/or
29 *     sell copies of the Software, and to permit persons to whom the
30 *     Software is furnished to do so, subject to the following
31 *     conditions:
32 *
33 *     The above copyright notice and this permission notice shall be
34 *     included in all copies or substantial portions of the Software.
35 *
36 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
37 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
38 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
39 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
40 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
41 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
42 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
43 *     OTHER DEALINGS IN THE SOFTWARE.
44 */
45
46/dts-v1/;
47#include "sun5i-gr8.dtsi"
48#include "sunxi-common-regulators.dtsi"
49
50#include <dt-bindings/gpio/gpio.h>
51#include <dt-bindings/input/input.h>
52#include <dt-bindings/interrupt-controller/irq.h>
53
54/ {
55	model = "NextThing GR8-EVB";
56	compatible = "nextthing,gr8-evb", "nextthing,gr8";
57
58	aliases {
59		i2c0 = &i2c0;
60		i2c1 = &i2c1;
61		i2c2 = &i2c2;
62		serial0 = &uart1;
63		serial1 = &uart2;
64	};
65
66	chosen {
67		stdout-path = "serial0:115200n8";
68	};
69
70	backlight: backlight {
71		compatible = "pwm-backlight";
72		pwms = <&pwm 0 10000 0>;
73		enable-gpios = <&axp_gpio 1 GPIO_ACTIVE_HIGH>;
74
75		brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
76		default-brightness-level = <8>;
77	};
78
79	sound-analog {
80		compatible = "simple-audio-card";
81		simple-audio-card,name = "gr8-evb-wm8978";
82		simple-audio-card,format = "i2s";
83		simple-audio-card,mclk-fs = <512>;
84
85		simple-audio-card,cpu {
86			sound-dai = <&i2s0>;
87		};
88
89		simple-audio-card,codec {
90			sound-dai = <&wm8978>;
91		};
92	};
93
94	sound-spdif {
95		compatible = "simple-audio-card";
96		simple-audio-card,name = "On-board SPDIF";
97
98		simple-audio-card,cpu {
99			sound-dai = <&spdif>;
100		};
101
102		simple-audio-card,codec {
103			sound-dai = <&spdif_out>;
104		};
105	};
106
107	spdif_out: spdif-out {
108		#sound-dai-cells = <0>;
109		compatible = "linux,spdif-dit";
110	};
111};
112
113&be0 {
114	status = "okay";
115};
116
117&codec {
118	status = "okay";
119};
120
121&ehci0 {
122	status = "okay";
123};
124
125&i2c0 {
126	pinctrl-names = "default";
127	pinctrl-0 = <&i2c0_pins_a>;
128	status = "okay";
129
130	axp209: pmic@34 {
131		reg = <0x34>;
132
133		/*
134		* The interrupt is routed through the "External Fast
135		* Interrupt Request" pin (ball G13 of the module)
136		* directly to the main interrupt controller, without
137		* any other controller interfering.
138		*/
139		interrupts = <0>;
140	};
141};
142
143#include "axp209.dtsi"
144
145&i2c1 {
146	pinctrl-names = "default";
147	pinctrl-0 = <&i2c1_pins_a>;
148	status = "okay";
149
150	wm8978: codec@1a {
151		#sound-dai-cells = <0>;
152		compatible = "wlf,wm8978";
153		reg = <0x1a>;
154	};
155
156	pcf8563: rtc@51 {
157		compatible = "phg,pcf8563";
158		reg = <0x51>;
159	};
160};
161
162&i2c2 {
163	pinctrl-names = "default";
164	pinctrl-0 = <&i2c2_pins_a>;
165	status = "okay";
166};
167
168&i2s0 {
169	pinctrl-names = "default";
170	pinctrl-0 = <&i2s0_mclk_pins_a>, <&i2s0_data_pins_a>;
171	status = "okay";
172};
173
174&ir0 {
175	pinctrl-names = "default";
176	pinctrl-0 = <&ir0_rx_pins_a>;
177	status = "okay";
178};
179
180&lradc {
181	vref-supply = <&reg_ldo2>;
182	status = "okay";
183
184	button@190 {
185		label = "Volume Up";
186		linux,code = <KEY_VOLUMEUP>;
187		channel = <0>;
188		voltage = <190000>;
189	};
190
191	button@390 {
192		label = "Volume Down";
193		linux,code = <KEY_VOLUMEDOWN>;
194		channel = <0>;
195		voltage = <390000>;
196	};
197
198	button@600 {
199		label = "Menu";
200		linux,code = <KEY_MENU>;
201		channel = <0>;
202		voltage = <600000>;
203	};
204
205	button@800 {
206		label = "Search";
207		linux,code = <KEY_SEARCH>;
208		channel = <0>;
209		voltage = <800000>;
210	};
211
212	button@980 {
213		label = "Home";
214		linux,code = <KEY_HOMEPAGE>;
215		channel = <0>;
216		voltage = <980000>;
217	};
218
219	button@1180 {
220		label = "Esc";
221		linux,code = <KEY_ESC>;
222		channel = <0>;
223		voltage = <1180000>;
224	};
225
226	button@1400 {
227		label = "Enter";
228		linux,code = <KEY_ENTER>;
229		channel = <0>;
230		voltage = <1400000>;
231	};
232};
233
234&mmc0 {
235	pinctrl-names = "default";
236	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_gr8_evb>;
237	vmmc-supply = <&reg_vcc3v3>;
238	bus-width = <4>;
239	cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
240	status = "okay";
241};
242
243&nfc {
244	pinctrl-names = "default";
245	pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
246
247	/* MLC Support sucks for now */
248	status = "disabled";
249};
250
251&ohci0 {
252	status = "okay";
253};
254
255&otg_sram {
256	status = "okay";
257};
258
259&pio {
260	mmc0_cd_pin_gr8_evb: mmc0-cd-pin@0 {
261		pins = "PG0";
262		function = "gpio_in";
263	};
264
265	usb0_id_pin_gr8_evb: usb0-id-pin@0 {
266		pins = "PG2";
267		function = "gpio_in";
268	};
269
270	usb0_vbus_det_pin_gr8_evb: usb0-vbus-det-pin@0 {
271		pins = "PG1";
272		function = "gpio_in";
273	};
274
275	usb1_vbus_pin_gr8_evb: usb1-vbus-pin@0 {
276		pins = "PG13";
277		function = "gpio_out";
278	};
279};
280
281&pwm {
282	pinctrl-names = "default";
283	pinctrl-0 = <&pwm0_pins>;
284	status = "okay";
285};
286
287&reg_dcdc2 {
288	regulator-min-microvolt = <1000000>;
289	regulator-max-microvolt = <1400000>;
290	regulator-name = "vdd-cpu";
291	regulator-always-on;
292};
293
294&reg_dcdc3 {
295	regulator-min-microvolt = <1000000>;
296	regulator-max-microvolt = <1300000>;
297	regulator-name = "vdd-sys";
298	regulator-always-on;
299};
300
301&reg_ldo1 {
302	regulator-name = "vdd-rtc";
303};
304
305&reg_ldo2 {
306	regulator-min-microvolt = <2700000>;
307	regulator-max-microvolt = <3300000>;
308	regulator-name = "avcc";
309	regulator-always-on;
310};
311
312&reg_usb1_vbus {
313	pinctrl-0 = <&usb1_vbus_pin_gr8_evb>;
314	gpio = <&pio 6 13 GPIO_ACTIVE_HIGH>;
315	status = "okay";
316};
317
318&rtp {
319	allwinner,ts-attached;
320};
321
322&spdif {
323	pinctrl-names = "default";
324	pinctrl-0 = <&spdif_tx_pins_a>;
325	status = "okay";
326};
327
328&tve0 {
329	status = "okay";
330};
331
332&uart1 {
333	pinctrl-names = "default";
334	pinctrl-0 = <&uart1_pins_b>, <&uart1_cts_rts_pins_a>;
335	status = "okay";
336};
337
338&usb_otg {
339	/*
340	 * The GR8-EVB has a somewhat interesting design. There's a
341	 * pin supposed to control VBUS, an ID pin, a VBUS detect pin,
342	 * so everything should work just fine.
343	 *
344	 * Except that the pin supposed to control VBUS is not
345	 * connected to any controllable output, neither to the SoC
346	 * through a GPIO or to the PMIC, and it is pulled down,
347	 * meaning that we will never be able to enable VBUS on this
348	 * board.
349	 */
350	dr_mode = "otg";
351	status = "okay";
352};
353
354&usb_power_supply {
355	status = "okay";
356};
357
358&usbphy {
359	pinctrl-names = "default";
360	pinctrl-0 = <&usb0_id_pin_gr8_evb>, <&usb0_vbus_det_pin_gr8_evb>;
361	usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
362	usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */
363	usb0_vbus_power-supply = <&usb_power_supply>;
364	usb1_vbus-supply = <&reg_usb1_vbus>;
365	status = "okay";
366};
367