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&codec {
 86	status = "okay";
 87};
 88
 89&cpu0 {
 90	cpu-supply = <&reg_dcdc2>;
 91};
 92
 93&ehci0 {
 94	status = "okay";
 95};
 96
 97&ehci1 {
 98	status = "okay";
 99};
100
101&gmac {
102	pinctrl-names = "default";
103	pinctrl-0 = <&gmac_pins_rgmii_a>;
104	phy = <&phy1>;
105	phy-mode = "rgmii";
106	status = "okay";
107
108	phy1: ethernet-phy@1 {
109		reg = <1>;
110	};
111};
112
113&i2c0 {
114	pinctrl-names = "default";
115	pinctrl-0 = <&i2c0_pins_a>;
116	status = "okay";
117
118	axp209: pmic@34 {
119		reg = <0x34>;
120		interrupt-parent = <&nmi_intc>;
121		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
122	};
123};
124
125&ir0 {
126	pinctrl-names = "default";
127	pinctrl-0 = <&ir0_rx_pins_a>;
128	status = "okay";
129};
130
131&mmc0 {
132	pinctrl-names = "default";
133	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
134	vmmc-supply = <&reg_vcc3v3>;
135	bus-width = <4>;
136	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
137	cd-inverted;
138	status = "okay";
139};
140
141&ohci0 {
142	status = "okay";
143};
144
145&ohci1 {
146	status = "okay";
147};
148
149&otg_sram {
150	status = "okay";
151};
152
153&pio {
154	ahci_pwr_pin_pcduino3_nano: ahci_pwr_pin@0 {
155		allwinner,pins = "PH2";
156		allwinner,function = "gpio_out";
157		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
158		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
159	};
160
161	led_pins_pcduino3_nano: led_pins@0 {
162		allwinner,pins = "PH16", "PH15";
163		allwinner,function = "gpio_out";
164		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
165		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
166	};
167
168	usb0_id_detect_pin: usb0_id_detect_pin@0 {
169		allwinner,pins = "PH4";
170		allwinner,function = "gpio_in";
171		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
172		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
173	};
174
175	usb1_vbus_pin_pcduino3_nano: usb1_vbus_pin@0 {
176		allwinner,pins = "PD2";
177		allwinner,function = "gpio_out";
178		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
179		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
180	};
181};
182
183&reg_ahci_5v {
184	pinctrl-0 = <&ahci_pwr_pin_pcduino3_nano>;
185	gpio = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
186	status = "okay";
187};
188
189#include "axp209.dtsi"
190
191&reg_dcdc2 {
192	regulator-always-on;
193	regulator-min-microvolt = <1000000>;
194	regulator-max-microvolt = <1400000>;
195	regulator-name = "vdd-cpu";
196};
197
198&reg_dcdc3 {
199	regulator-always-on;
200	regulator-min-microvolt = <1000000>;
201	regulator-max-microvolt = <1400000>;
202	regulator-name = "vdd-int-pll";
203};
204
205&reg_ldo1 {
206	regulator-name = "vdd-rtc";
207};
208
209&reg_ldo2 {
210	regulator-always-on;
211	regulator-min-microvolt = <3000000>;
212	regulator-max-microvolt = <3000000>;
213	regulator-name = "avcc";
214};
215
216/* A single regulator (U24) powers both USB host ports. */
217&reg_usb1_vbus {
218	pinctrl-0 = <&usb1_vbus_pin_pcduino3_nano>;
219	gpio = <&pio 3 2 GPIO_ACTIVE_HIGH>; /* PD2 */
220	status = "okay";
221};
222
223&uart0 {
224	pinctrl-names = "default";
225	pinctrl-0 = <&uart0_pins_a>;
226	status = "okay";
227};
228
229&usb_otg {
230	dr_mode = "otg";
231	status = "okay";
232};
233
234&usbphy {
235	pinctrl-names = "default";
236	pinctrl-0 = <&usb0_id_detect_pin>;
237	usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
238	usb1_vbus-supply = <&reg_usb1_vbus>;
239	usb2_vbus-supply = <&reg_usb1_vbus>;
240	status = "okay";
241};