xref: /openbmc/u-boot/arch/arm/dts/sun5i-r8-chip.dts (revision ed4708aa) 
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";
56
57	aliases {
58		i2c0 = &i2c0;
59		i2c2 = &i2c2;
60		serial0 = &uart1;
61		serial1 = &uart3;
62	};
63
64	chosen {
65		stdout-path = "serial0:115200n8";
66	};
67
68	wifi_reg_on: wifi_reg_on {
69		compatible = "regulator-fixed";
70		pinctrl-names = "default";
71		pinctrl-0 = <&chip_wifi_reg_on_pin>;
72
73		regulator-name = "wifi-reg-on";
74		regulator-min-microvolt = <3300000>;
75		regulator-max-microvolt = <3300000>;
76		gpio = <&pio 2 19 GPIO_ACTIVE_HIGH>; /* PC19 */
77		enable-active-high;
78	};
79};
80
81&codec {
82	status = "okay";
83};
84
85&cpu0 {
86	cpu-supply = <&reg_dcdc2>;
87};
88
89&ehci0 {
90	status = "okay";
91};
92
93&i2c0 {
94	pinctrl-names = "default";
95	pinctrl-0 = <&i2c0_pins_a>;
96	status = "okay";
97
98	axp209: pmic@34 {
99		reg = <0x34>;
100
101		/*
102		 * The interrupt is routed through the "External Fast
103		 * Interrupt Request" pin (ball G13 of the module)
104		 * directly to the main interrupt controller, without
105		 * any other controller interfering.
106		 */
107		interrupts = <0>;
108	};
109};
110
111#include "axp209.dtsi"
112
113&i2c2 {
114	pinctrl-names = "default";
115	pinctrl-0 = <&i2c2_pins_a>;
116	status = "okay";
117
118	xio: gpio@38 {
119		compatible = "nxp,pcf8574a";
120		reg = <0x38>;
121
122		gpio-controller;
123		#gpio-cells = <2>;
124
125		interrupt-parent = <&pio>;
126		interrupts = <6 0 IRQ_TYPE_EDGE_FALLING>;
127		interrupt-controller;
128		#interrupt-cells = <2>;
129	};
130};
131
132&mmc0_pins_a {
133	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
134};
135
136&mmc0 {
137	pinctrl-names = "default";
138	pinctrl-0 = <&mmc0_pins_a>;
139	vmmc-supply = <&wifi_reg_on>;
140	bus-width = <4>;
141	non-removable;
142	status = "okay";
143};
144
145&ohci0 {
146	status = "okay";
147};
148
149&otg_sram {
150	status = "okay";
151};
152
153&pio {
154	chip_vbus_pin: chip_vbus_pin@0 {
155		allwinner,pins = "PB10";
156		allwinner,function = "gpio_out";
157		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
158		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
159	};
160
161	chip_wifi_reg_on_pin: chip_wifi_reg_on_pin@0 {
162		allwinner,pins = "PC19";
163		allwinner,function = "gpio_out";
164		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
165		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
166	};
167
168	chip_id_det_pin: chip_id_det_pin@0 {
169		allwinner,pins = "PG2";
170		allwinner,function = "gpio_in";
171		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
172		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
173	};
174};
175
176&reg_dcdc2 {
177	regulator-min-microvolt = <1000000>;
178	regulator-max-microvolt = <1400000>;
179	regulator-name = "cpuvdd";
180	regulator-always-on;
181};
182
183&reg_dcdc3 {
184	regulator-min-microvolt = <1000000>;
185	regulator-max-microvolt = <1300000>;
186	regulator-name = "corevdd";
187	regulator-always-on;
188};
189
190&reg_ldo1 {
191	regulator-name = "rtcvdd";
192};
193
194&reg_ldo2 {
195	regulator-min-microvolt = <2700000>;
196	regulator-max-microvolt = <3300000>;
197	regulator-name = "avcc";
198	regulator-always-on;
199};
200
201&reg_ldo3 {
202	regulator-min-microvolt = <3300000>;
203	regulator-max-microvolt = <3300000>;
204	regulator-name = "vdd-wifi1";
205	regulator-always-on;
206};
207
208&reg_ldo4 {
209	regulator-min-microvolt = <3300000>;
210	regulator-max-microvolt = <3300000>;
211	regulator-name = "vdd-wifi2";
212	regulator-always-on;
213};
214
215&reg_ldo5 {
216	regulator-min-microvolt = <1800000>;
217	regulator-max-microvolt = <1800000>;
218	regulator-name = "vcc-1v8";
219};
220
221&reg_usb0_vbus {
222	pinctrl-0 = <&chip_vbus_pin>;
223	vin-supply = <&reg_vcc5v0>;
224	gpio = <&pio 1 10 GPIO_ACTIVE_HIGH>; /* PB10 */
225	status = "okay";
226};
227
228&uart1 {
229	pinctrl-names = "default";
230	pinctrl-0 = <&uart1_pins_b>;
231	status = "okay";
232};
233
234&uart3 {
235	pinctrl-names = "default";
236	pinctrl-0 = <&uart3_pins_a>,
237		    <&uart3_pins_cts_rts_a>;
238	status = "okay";
239};
240
241&usb_otg {
242	dr_mode = "otg";
243	status = "okay";
244};
245
246&usb_power_supply {
247	status = "okay";
248};
249
250&usbphy {
251	pinctrl-names = "default";
252	pinctrl-0 = <&chip_id_det_pin>;
253	status = "okay";
254
255	usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
256	usb0_vbus_power-supply = <&usb_power_supply>;
257	usb0_vbus-supply = <&reg_usb0_vbus>;
258	usb1_vbus-supply = <&reg_vcc5v0>;
259};
260