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1/*
2 * Copyright 2015 Free Electrons
3 * Copyright 2015 NextThing Co
4 *
5 * Maxime Ripard <maxime.ripard@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-r8.dtsi"
48#include "sunxi-common-regulators.dtsi"
49
50#include <dt-bindings/gpio/gpio.h>
51#include <dt-bindings/interrupt-controller/irq.h>
52
53/ {
54	model = "NextThing C.H.I.P.";
55	compatible = "nextthing,chip", "allwinner,sun5i-r8", "allwinner,sun5i-a13";
56
57	aliases {
58		i2c0 = &i2c0;
59		i2c1 = &i2c1;
60		i2c2 = &i2c2;
61		serial0 = &uart1;
62		serial1 = &uart3;
63		spi0 = &spi2;
64	};
65
66	chosen {
67		stdout-path = "serial0:115200n8";
68	};
69
70	leds {
71		compatible = "gpio-leds";
72
73		status {
74			label = "chip:white:status";
75			gpios = <&axp_gpio 2 GPIO_ACTIVE_HIGH>;
76			default-state = "on";
77		};
78	};
79
80	mmc0_pwrseq: mmc0_pwrseq {
81		compatible = "mmc-pwrseq-simple";
82		reset-gpios = <&pio 2 19 GPIO_ACTIVE_LOW>; /* PC19 */
83	};
84
85	onewire {
86		compatible = "w1-gpio";
87		gpios = <&pio 3 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PD2 */
88	};
89};
90
91&be0 {
92	status = "okay";
93};
94
95&codec {
96	status = "okay";
97};
98
99&cpu0 {
100	cpu-supply = <&reg_dcdc2>;
101};
102
103&ehci0 {
104	status = "okay";
105};
106
107&i2c0 {
108	status = "okay";
109
110	axp209: pmic@34 {
111		reg = <0x34>;
112
113		/*
114		 * The interrupt is routed through the "External Fast
115		 * Interrupt Request" pin (ball G13 of the module)
116		 * directly to the main interrupt controller, without
117		 * any other controller interfering.
118		 */
119		interrupts = <0>;
120	};
121};
122
123#include "axp209.dtsi"
124
125&ac_power_supply {
126	status = "okay";
127};
128
129&battery_power_supply {
130	status = "okay";
131};
132
133&i2c1 {
134	status = "disabled";
135};
136
137&i2c2 {
138	status = "okay";
139
140	xio: gpio@38 {
141		compatible = "nxp,pcf8574a";
142		reg = <0x38>;
143
144		gpio-controller;
145		#gpio-cells = <2>;
146
147		interrupt-parent = <&pio>;
148		interrupts = <6 0 IRQ_TYPE_EDGE_FALLING>;
149		interrupt-controller;
150		#interrupt-cells = <2>;
151	};
152};
153
154&mmc0_pins {
155	bias-pull-up;
156};
157
158&mmc0 {
159	vmmc-supply = <&reg_vcc3v3>;
160	mmc-pwrseq = <&mmc0_pwrseq>;
161	bus-width = <4>;
162	non-removable;
163	status = "okay";
164};
165
166&ohci0 {
167	status = "okay";
168};
169
170&otg_sram {
171	status = "okay";
172};
173
174&reg_dcdc2 {
175	regulator-min-microvolt = <1000000>;
176	regulator-max-microvolt = <1400000>;
177	regulator-name = "cpuvdd";
178	regulator-always-on;
179};
180
181&reg_dcdc3 {
182	regulator-min-microvolt = <1000000>;
183	regulator-max-microvolt = <1300000>;
184	regulator-name = "corevdd";
185	regulator-always-on;
186};
187
188&reg_ldo1 {
189	regulator-name = "rtcvdd";
190};
191
192&reg_ldo2 {
193	regulator-min-microvolt = <2700000>;
194	regulator-max-microvolt = <3300000>;
195	regulator-name = "avcc";
196	regulator-always-on;
197};
198
199/*
200 * Both LDO3 and LDO4 are used in parallel to power up the WiFi/BT
201 * Chip.
202 *
203 * If those are not enabled, the SDIO part will not enumerate, and
204 * since there's no way currently to pass DT infos to an SDIO device,
205 * we cannot really do better than this ugly hack for now.
206 */
207&reg_ldo3 {
208	regulator-min-microvolt = <3300000>;
209	regulator-max-microvolt = <3300000>;
210	regulator-name = "vcc-wifi-1";
211	regulator-always-on;
212};
213
214&reg_ldo4 {
215	regulator-min-microvolt = <3300000>;
216	regulator-max-microvolt = <3300000>;
217	regulator-name = "vcc-wifi-2";
218	regulator-always-on;
219};
220
221&reg_ldo5 {
222	regulator-min-microvolt = <1800000>;
223	regulator-max-microvolt = <1800000>;
224	regulator-name = "vcc-1v8";
225};
226
227&reg_usb0_vbus {
228	vin-supply = <&reg_vcc5v0>;
229	gpio = <&pio 1 10 GPIO_ACTIVE_HIGH>; /* PB10 */
230	status = "okay";
231};
232
233&spi2 {
234	pinctrl-names = "default";
235	pinctrl-0 = <&spi2_pe_pins>;
236	status = "disabled";
237};
238
239&tcon0 {
240	status = "okay";
241};
242
243&tve0 {
244	status = "okay";
245};
246
247&uart1 {
248	pinctrl-names = "default";
249	pinctrl-0 = <&uart1_pg_pins>;
250	status = "okay";
251};
252
253&uart3 {
254	pinctrl-names = "default";
255	pinctrl-0 = <&uart3_pg_pins>,
256		    <&uart3_cts_rts_pg_pins>;
257	status = "okay";
258};
259
260&usb_otg {
261	dr_mode = "otg";
262	status = "okay";
263};
264
265&usb_power_supply {
266	status = "okay";
267};
268
269&usbphy {
270	status = "okay";
271
272	usb0_id_det-gpios = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
273	usb0_vbus_power-supply = <&usb_power_supply>;
274	usb0_vbus-supply = <&reg_usb0_vbus>;
275	usb1_vbus-supply = <&reg_vcc5v0>;
276};
277