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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 pinctrl-names = "default";
83 pinctrl-0 = <&chip_wifi_reg_on_pin>;
84 reset-gpios = <&pio 2 19 GPIO_ACTIVE_LOW>; /* PC19 */
85 };
86
87 onewire {
88 compatible = "w1-gpio";
89 gpios = <&pio 3 2 GPIO_ACTIVE_HIGH>; /* PD2 */
90 pinctrl-names = "default";
91 pinctrl-0 = <&chip_w1_pin>;
92 };
93};
94
95&be0 {
96 status = "okay";
97};
98
99&codec {
100 status = "okay";
101};
102
103&cpu0 {
104 cpu-supply = <®_dcdc2>;
105};
106
107&ehci0 {
108 status = "okay";
109};
110
111&i2c0 {
112 pinctrl-names = "default";
113 pinctrl-0 = <&i2c0_pins_a>;
114 status = "okay";
115
116 axp209: pmic@34 {
117 reg = <0x34>;
118
119 /*
120 * The interrupt is routed through the "External Fast
121 * Interrupt Request" pin (ball G13 of the module)
122 * directly to the main interrupt controller, without
123 * any other controller interfering.
124 */
125 interrupts = <0>;
126 };
127};
128
129#include "axp209.dtsi"
130
131&ac_power_supply {
132 status = "okay";
133};
134
135&battery_power_supply {
136 status = "okay";
137};
138
139&i2c1 {
140 pinctrl-names = "default";
141 pinctrl-0 = <&i2c1_pins_a>;
142 status = "disabled";
143};
144
145&i2c2 {
146 pinctrl-names = "default";
147 pinctrl-0 = <&i2c2_pins_a>;
148 status = "okay";
149
150 xio: gpio@38 {
151 compatible = "nxp,pcf8574a";
152 reg = <0x38>;
153
154 gpio-controller;
155 #gpio-cells = <2>;
156
157 interrupt-parent = <&pio>;
158 interrupts = <6 0 IRQ_TYPE_EDGE_FALLING>;
159 interrupt-controller;
160 #interrupt-cells = <2>;
161 };
162};
163
164&mmc0_pins_a {
165 bias-pull-up;
166};
167
168&mmc0 {
169 pinctrl-names = "default";
170 pinctrl-0 = <&mmc0_pins_a>;
171 vmmc-supply = <®_vcc3v3>;
172 mmc-pwrseq = <&mmc0_pwrseq>;
173 bus-width = <4>;
174 non-removable;
175 status = "okay";
176};
177
178&ohci0 {
179 status = "okay";
180};
181
182&otg_sram {
183 status = "okay";
184};
185
186&pio {
187 chip_vbus_pin: chip_vbus_pin@0 {
188 pins = "PB10";
189 function = "gpio_out";
190 };
191
192 chip_wifi_reg_on_pin: chip_wifi_reg_on_pin@0 {
193 pins = "PC19";
194 function = "gpio_out";
195 };
196
197 chip_id_det_pin: chip_id_det_pin@0 {
198 pins = "PG2";
199 function = "gpio_in";
200 };
201
202 chip_w1_pin: chip_w1_pin@0 {
203 pins = "PD2";
204 function = "gpio_in";
205 bias-pull-up;
206 };
207};
208
209®_dcdc2 {
210 regulator-min-microvolt = <1000000>;
211 regulator-max-microvolt = <1400000>;
212 regulator-name = "cpuvdd";
213 regulator-always-on;
214};
215
216®_dcdc3 {
217 regulator-min-microvolt = <1000000>;
218 regulator-max-microvolt = <1300000>;
219 regulator-name = "corevdd";
220 regulator-always-on;
221};
222
223®_ldo1 {
224 regulator-name = "rtcvdd";
225};
226
227®_ldo2 {
228 regulator-min-microvolt = <2700000>;
229 regulator-max-microvolt = <3300000>;
230 regulator-name = "avcc";
231 regulator-always-on;
232};
233
234/*
235 * Both LDO3 and LDO4 are used in parallel to power up the WiFi/BT
236 * Chip.
237 *
238 * If those are not enabled, the SDIO part will not enumerate, and
239 * since there's no way currently to pass DT infos to an SDIO device,
240 * we cannot really do better than this ugly hack for now.
241 */
242®_ldo3 {
243 regulator-min-microvolt = <3300000>;
244 regulator-max-microvolt = <3300000>;
245 regulator-name = "vcc-wifi-1";
246 regulator-always-on;
247};
248
249®_ldo4 {
250 regulator-min-microvolt = <3300000>;
251 regulator-max-microvolt = <3300000>;
252 regulator-name = "vcc-wifi-2";
253 regulator-always-on;
254};
255
256®_ldo5 {
257 regulator-min-microvolt = <1800000>;
258 regulator-max-microvolt = <1800000>;
259 regulator-name = "vcc-1v8";
260};
261
262®_usb0_vbus {
263 pinctrl-0 = <&chip_vbus_pin>;
264 vin-supply = <®_vcc5v0>;
265 gpio = <&pio 1 10 GPIO_ACTIVE_HIGH>; /* PB10 */
266 status = "okay";
267};
268
269&spi2 {
270 pinctrl-names = "default";
271 pinctrl-0 = <&spi2_pins_a>;
272 status = "disabled";
273};
274
275&tcon0 {
276 status = "okay";
277};
278
279&tve0 {
280 status = "okay";
281};
282
283&uart1 {
284 pinctrl-names = "default";
285 pinctrl-0 = <&uart1_pins_b>;
286 status = "okay";
287};
288
289&uart3 {
290 pinctrl-names = "default";
291 pinctrl-0 = <&uart3_pins_a>,
292 <&uart3_cts_rts_pins_a>;
293 status = "okay";
294};
295
296&usb_otg {
297 dr_mode = "otg";
298 status = "okay";
299};
300
301&usb_power_supply {
302 status = "okay";
303};
304
305&usbphy {
306 pinctrl-names = "default";
307 pinctrl-0 = <&chip_id_det_pin>;
308 status = "okay";
309
310 usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
311 usb0_vbus_power-supply = <&usb_power_supply>;
312 usb0_vbus-supply = <®_usb0_vbus>;
313 usb1_vbus-supply = <®_vcc5v0>;
314};
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 pinctrl-names = "default";
83 pinctrl-0 = <&chip_wifi_reg_on_pin>;
84 reset-gpios = <&pio 2 19 GPIO_ACTIVE_LOW>; /* PC19 */
85 };
86
87 onewire {
88 compatible = "w1-gpio";
89 gpios = <&pio 3 2 GPIO_ACTIVE_HIGH>; /* PD2 */
90 pinctrl-names = "default";
91 pinctrl-0 = <&chip_w1_pin>;
92 };
93};
94
95&be0 {
96 status = "okay";
97};
98
99&codec {
100 status = "okay";
101};
102
103&cpu0 {
104 cpu-supply = <®_dcdc2>;
105};
106
107&ehci0 {
108 status = "okay";
109};
110
111&i2c0 {
112 pinctrl-names = "default";
113 pinctrl-0 = <&i2c0_pins_a>;
114 status = "okay";
115
116 axp209: pmic@34 {
117 reg = <0x34>;
118
119 /*
120 * The interrupt is routed through the "External Fast
121 * Interrupt Request" pin (ball G13 of the module)
122 * directly to the main interrupt controller, without
123 * any other controller interfering.
124 */
125 interrupts = <0>;
126 };
127};
128
129#include "axp209.dtsi"
130
131&i2c1 {
132 pinctrl-names = "default";
133 pinctrl-0 = <&i2c1_pins_a>;
134 status = "disabled";
135};
136
137&i2c2 {
138 pinctrl-names = "default";
139 pinctrl-0 = <&i2c2_pins_a>;
140 status = "okay";
141
142 xio: gpio@38 {
143 compatible = "nxp,pcf8574a";
144 reg = <0x38>;
145
146 gpio-controller;
147 #gpio-cells = <2>;
148
149 interrupt-parent = <&pio>;
150 interrupts = <6 0 IRQ_TYPE_EDGE_FALLING>;
151 interrupt-controller;
152 #interrupt-cells = <2>;
153 };
154};
155
156&mmc0_pins_a {
157 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
158};
159
160&mmc0 {
161 pinctrl-names = "default";
162 pinctrl-0 = <&mmc0_pins_a>;
163 vmmc-supply = <®_vcc3v3>;
164 mmc-pwrseq = <&mmc0_pwrseq>;
165 bus-width = <4>;
166 non-removable;
167 status = "okay";
168};
169
170&ohci0 {
171 status = "okay";
172};
173
174&otg_sram {
175 status = "okay";
176};
177
178&pio {
179 chip_vbus_pin: chip_vbus_pin@0 {
180 allwinner,pins = "PB10";
181 allwinner,function = "gpio_out";
182 allwinner,drive = <SUN4I_PINCTRL_10_MA>;
183 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
184 };
185
186 chip_wifi_reg_on_pin: chip_wifi_reg_on_pin@0 {
187 allwinner,pins = "PC19";
188 allwinner,function = "gpio_out";
189 allwinner,drive = <SUN4I_PINCTRL_10_MA>;
190 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
191 };
192
193 chip_id_det_pin: chip_id_det_pin@0 {
194 allwinner,pins = "PG2";
195 allwinner,function = "gpio_in";
196 allwinner,drive = <SUN4I_PINCTRL_10_MA>;
197 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
198 };
199
200 chip_w1_pin: chip_w1_pin@0 {
201 allwinner,pins = "PD2";
202 allwinner,function = "gpio_in";
203 allwinner,drive = <SUN4I_PINCTRL_10_MA>;
204 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
205 };
206};
207
208®_dcdc2 {
209 regulator-min-microvolt = <1000000>;
210 regulator-max-microvolt = <1400000>;
211 regulator-name = "cpuvdd";
212 regulator-always-on;
213};
214
215®_dcdc3 {
216 regulator-min-microvolt = <1000000>;
217 regulator-max-microvolt = <1300000>;
218 regulator-name = "corevdd";
219 regulator-always-on;
220};
221
222®_ldo1 {
223 regulator-name = "rtcvdd";
224};
225
226®_ldo2 {
227 regulator-min-microvolt = <2700000>;
228 regulator-max-microvolt = <3300000>;
229 regulator-name = "avcc";
230 regulator-always-on;
231};
232
233/*
234 * Both LDO3 and LDO4 are used in parallel to power up the WiFi/BT
235 * Chip.
236 *
237 * If those are not enabled, the SDIO part will not enumerate, and
238 * since there's no way currently to pass DT infos to an SDIO device,
239 * we cannot really do better than this ugly hack for now.
240 */
241®_ldo3 {
242 regulator-min-microvolt = <3300000>;
243 regulator-max-microvolt = <3300000>;
244 regulator-name = "vcc-wifi-1";
245 regulator-always-on;
246};
247
248®_ldo4 {
249 regulator-min-microvolt = <3300000>;
250 regulator-max-microvolt = <3300000>;
251 regulator-name = "vcc-wifi-2";
252 regulator-always-on;
253};
254
255®_ldo5 {
256 regulator-min-microvolt = <1800000>;
257 regulator-max-microvolt = <1800000>;
258 regulator-name = "vcc-1v8";
259};
260
261®_usb0_vbus {
262 pinctrl-0 = <&chip_vbus_pin>;
263 vin-supply = <®_vcc5v0>;
264 gpio = <&pio 1 10 GPIO_ACTIVE_HIGH>; /* PB10 */
265 status = "okay";
266};
267
268&spi2 {
269 pinctrl-names = "default";
270 pinctrl-0 = <&spi2_pins_a>;
271 status = "disabled";
272};
273
274&tcon0 {
275 status = "okay";
276};
277
278&tve0 {
279 status = "okay";
280};
281
282&uart1 {
283 pinctrl-names = "default";
284 pinctrl-0 = <&uart1_pins_b>;
285 status = "okay";
286};
287
288&uart3 {
289 pinctrl-names = "default";
290 pinctrl-0 = <&uart3_pins_a>,
291 <&uart3_pins_cts_rts_a>;
292 status = "okay";
293};
294
295&usb_otg {
296 dr_mode = "otg";
297 status = "okay";
298};
299
300&usb_power_supply {
301 status = "okay";
302};
303
304&usbphy {
305 pinctrl-names = "default";
306 pinctrl-0 = <&chip_id_det_pin>;
307 status = "okay";
308
309 usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
310 usb0_vbus_power-supply = <&usb_power_supply>;
311 usb0_vbus-supply = <®_usb0_vbus>;
312 usb1_vbus-supply = <®_vcc5v0>;
313};