1/*
2 * Copyright 2015 Adam Sampson <ats@offog.org>
3 *
4 * This file is dual-licensed: you can use it either under the terms
5 * of the GPL or the X11 license, at your option. Note that this dual
6 * licensing only applies to this file, and not this project as a
7 * whole.
8 *
9 *  a) This file is free software; you can redistribute it and/or
10 *     modify it under the terms of the GNU General Public License as
11 *     published by the Free Software Foundation; either version 2 of the
12 *     License, or (at your option) any later version.
13 *
14 *     This file is distributed in the hope that it will be useful,
15 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *     GNU General Public License for more details.
18 *
19 * Or, alternatively,
20 *
21 *  b) Permission is hereby granted, free of charge, to any person
22 *     obtaining a copy of this software and associated documentation
23 *     files (the "Software"), to deal in the Software without
24 *     restriction, including without limitation the rights to use,
25 *     copy, modify, merge, publish, distribute, sublicense, and/or
26 *     sell copies of the Software, and to permit persons to whom the
27 *     Software is furnished to do so, subject to the following
28 *     conditions:
29 *
30 *     The above copyright notice and this permission notice shall be
31 *     included in all copies or substantial portions of the Software.
32 *
33 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
34 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
35 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
36 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
37 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
38 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
39 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
40 *     OTHER DEALINGS IN THE SOFTWARE.
41 */
42
43/dts-v1/;
44#include "sun7i-a20.dtsi"
45#include "sunxi-common-regulators.dtsi"
46#include <dt-bindings/gpio/gpio.h>
47#include <dt-bindings/interrupt-controller/arm-gic.h>
48
49/ {
50	model = "LinkSprite pcDuino3 Nano";
51	compatible = "linksprite,pcduino3-nano", "allwinner,sun7i-a20";
52
53	aliases {
54		serial0 = &uart0;
55	};
56
57	chosen {
58		stdout-path = "serial0:115200n8";
59	};
60
61	leds {
62		compatible = "gpio-leds";
63		pinctrl-names = "default";
64		pinctrl-0 = <&led_pins_pcduino3_nano>;
65
66		/* Marked "LED3" on the PCB. */
67		usr1 {
68			label = "pcduino3-nano:green:usr1";
69			gpios = <&pio 7 16 GPIO_ACTIVE_LOW>; /* PH16 */
70		};
71
72		/* Marked "LED4" on the PCB. */
73		usr2 {
74			label = "pcduino3-nano:green:usr2";
75			gpios = <&pio 7 15 GPIO_ACTIVE_LOW>; /* PH15 */
76		};
77	};
78};
79
80&ahci {
81	target-supply = <&reg_ahci_5v>;
82	status = "okay";
83};
84
85&cpu0 {
86	cpu-supply = <&reg_dcdc2>;
87};
88
89&ehci0 {
90	status = "okay";
91};
92
93&ehci1 {
94	status = "okay";
95};
96
97&gmac {
98	pinctrl-names = "default";
99	pinctrl-0 = <&gmac_pins_rgmii_a>;
100	phy = <&phy1>;
101	phy-mode = "rgmii";
102	status = "okay";
103
104	phy1: ethernet-phy@1 {
105		reg = <1>;
106	};
107};
108
109&i2c0 {
110	pinctrl-names = "default";
111	pinctrl-0 = <&i2c0_pins_a>;
112	status = "okay";
113
114	axp209: pmic@34 {
115		reg = <0x34>;
116		interrupt-parent = <&nmi_intc>;
117		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
118	};
119};
120
121&ir0 {
122	pinctrl-names = "default";
123	pinctrl-0 = <&ir0_rx_pins_a>;
124	status = "okay";
125};
126
127&mmc0 {
128	pinctrl-names = "default";
129	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
130	vmmc-supply = <&reg_vcc3v3>;
131	bus-width = <4>;
132	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
133	cd-inverted;
134	status = "okay";
135};
136
137&ohci0 {
138	status = "okay";
139};
140
141&ohci1 {
142	status = "okay";
143};
144
145&otg_sram {
146	status = "okay";
147};
148
149&pio {
150	ahci_pwr_pin_pcduino3_nano: ahci_pwr_pin@0 {
151		allwinner,pins = "PH2";
152		allwinner,function = "gpio_out";
153		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
154		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
155	};
156
157	led_pins_pcduino3_nano: led_pins@0 {
158		allwinner,pins = "PH16", "PH15";
159		allwinner,function = "gpio_out";
160		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
161		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
162	};
163
164	usb0_id_detect_pin: usb0_id_detect_pin@0 {
165		allwinner,pins = "PH4";
166		allwinner,function = "gpio_in";
167		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
168		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
169	};
170
171	usb1_vbus_pin_pcduino3_nano: usb1_vbus_pin@0 {
172		allwinner,pins = "PD2";
173		allwinner,function = "gpio_out";
174		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
175		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
176	};
177};
178
179&reg_ahci_5v {
180	pinctrl-0 = <&ahci_pwr_pin_pcduino3_nano>;
181	gpio = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
182	status = "okay";
183};
184
185#include "axp209.dtsi"
186
187&reg_dcdc2 {
188	regulator-always-on;
189	regulator-min-microvolt = <1000000>;
190	regulator-max-microvolt = <1400000>;
191	regulator-name = "vdd-cpu";
192};
193
194&reg_dcdc3 {
195	regulator-always-on;
196	regulator-min-microvolt = <1000000>;
197	regulator-max-microvolt = <1400000>;
198	regulator-name = "vdd-int-pll";
199};
200
201&reg_ldo1 {
202	regulator-name = "vdd-rtc";
203};
204
205&reg_ldo2 {
206	regulator-always-on;
207	regulator-min-microvolt = <3000000>;
208	regulator-max-microvolt = <3000000>;
209	regulator-name = "avcc";
210};
211
212/* A single regulator (U24) powers both USB host ports. */
213&reg_usb1_vbus {
214	pinctrl-0 = <&usb1_vbus_pin_pcduino3_nano>;
215	gpio = <&pio 3 2 GPIO_ACTIVE_HIGH>; /* PD2 */
216	status = "okay";
217};
218
219&uart0 {
220	pinctrl-names = "default";
221	pinctrl-0 = <&uart0_pins_a>;
222	status = "okay";
223};
224
225&usb_otg {
226	dr_mode = "otg";
227	status = "okay";
228};
229
230&usbphy {
231	pinctrl-names = "default";
232	pinctrl-0 = <&usb0_id_detect_pin>;
233	usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
234	usb1_vbus-supply = <&reg_usb1_vbus>;
235	usb2_vbus-supply = <&reg_usb1_vbus>;
236	status = "okay";
237};
238