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 led-0 {
74 label = "chip:white:status";
75 gpios = <&axp_gpio 2 GPIO_ACTIVE_HIGH>;
76 default-state = "on";
77 };
78 };
79
80 mmc0_pwrseq: 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 = <®_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 = <®_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 ®_dcdc2 {
175 regulator-min-microvolt = <1000000>;
176 regulator-max-microvolt = <1400000>;
177 regulator-name = "cpuvdd";
178 regulator-always-on;
179 };
180
181 ®_dcdc3 {
182 regulator-min-microvolt = <1000000>;
183 regulator-max-microvolt = <1300000>;
184 regulator-name = "corevdd";
185 regulator-always-on;
186 };
187
188 ®_ldo1 {
189 regulator-name = "rtcvdd";
190 };
191
192 ®_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 ®_ldo3 {
208 regulator-min-microvolt = <3300000>;
209 regulator-max-microvolt = <3300000>;
210 regulator-name = "vcc-wifi-1";
211 regulator-always-on;
212 };
213
214 ®_ldo4 {
215 regulator-min-microvolt = <3300000>;
216 regulator-max-microvolt = <3300000>;
217 regulator-name = "vcc-wifi-2";
218 regulator-always-on;
219 };
220
221 ®_ldo5 {
222 regulator-min-microvolt = <1800000>;
223 regulator-max-microvolt = <1800000>;
224 regulator-name = "vcc-1v8";
225 };
226
227 ®_usb0_vbus {
228 vin-supply = <®_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 bluetooth {
260 compatible = "realtek,rtl8723bs-bt";
261 device-wake-gpios = <&axp_gpio 3 GPIO_ACTIVE_HIGH>;
262 host-wake-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
263 };
264 };
265
266 &usb_otg {
267 dr_mode = "otg";
268 status = "okay";
269 };
270
271 &usb_power_supply {
272 status = "okay";
273 };
274
275 &usbphy {
276 status = "okay";
277
278 usb0_id_det-gpios = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
279 usb0_vbus_power-supply = <&usb_power_supply>;
280 usb0_vbus-supply = <®_usb0_vbus>;
281 usb1_vbus-supply = <®_vcc5v0>;
282 };
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