alistair23-linux/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts

/*
 * Copyright (C) 2016 Icenowy Zheng <icenowy@aosc.xyz>
 *
 * Based on sun8i-h3-orangepi-one.dts, which is:
 *   Copyright (C) 2016 Hans de Goede <hdegoede@redhat.com>
 *
 * This file is dual-licensed: you can use it either under the terms
 * of the GPL or the X11 license, at your option. Note that this dual
 * licensing only applies to this file, and not this project as a
 * whole.
 *
 *  a) This file is free software; you can redistribute it and/or
 *     modify it under the terms of the GNU General Public License as
 *     published by the Free Software Foundation; either version 2 of the
 *     License, or (at your option) any later version.
 *
 *     This file is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 * Or, alternatively,
 *
 *  b) Permission is hereby granted, free of charge, to any person
 *     obtaining a copy of this software and associated documentation
 *     files (the "Software"), to deal in the Software without
 *     restriction, including without limitation the rights to use,
 *     copy, modify, merge, publish, distribute, sublicense, and/or
 *     sell copies of the Software, and to permit persons to whom the
 *     Software is furnished to do so, subject to the following
 *     conditions:
 *
 *     The above copyright notice and this permission notice shall be
 *     included in all copies or substantial portions of the Software.
 *
 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *     OTHER DEALINGS IN THE SOFTWARE.
 */

/dts-v1/;
#include "sun8i-h3.dtsi"
#include "sunxi-common-regulators.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
	model = "Xunlong Orange Pi Zero";
	compatible = "xunlong,orangepi-zero", "allwinner,sun8i-h2-plus";

	aliases {
		serial0 = &uart0;
		/* ethernet0 is the H3 emac, defined in sun8i-h3.dtsi */
		ethernet1 = &xr819;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	leds {
		compatible = "gpio-leds";

		pwr_led {
			label = "orangepi:green:pwr";
			gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>;
			default-state = "on";
		};

		status_led {
			label = "orangepi:red:status";
			gpios = <&pio 0 17 GPIO_ACTIVE_HIGH>;
		};
	};

	reg_vcc_wifi: reg_vcc_wifi {
		compatible = "regulator-fixed";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-name = "vcc-wifi";
		enable-active-high;
		gpio = <&pio 0 20 GPIO_ACTIVE_HIGH>;
	};

	wifi_pwrseq: wifi_pwrseq {
		compatible = "mmc-pwrseq-simple";
		reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>;
		post-power-on-delay-ms = <200>;
	};
};

&ehci0 {
	status = "okay";
};

&ehci1 {
	status = "okay";
};

&mmc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins_a>;
	vmmc-supply = <&reg_vcc3v3>;
	bus-width = <4>;
	cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
	cd-inverted;
	status = "okay";
};

&mmc1 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc1_pins_a>;
	vmmc-supply = <&reg_vcc_wifi>;
	mmc-pwrseq = <&wifi_pwrseq>;
	bus-width = <4>;
	non-removable;
	status = "okay";

	/*
	 * Explicitly define the sdio device, so that we can add an ethernet
	 * alias for it (which e.g. makes u-boot set a mac-address).
	 */
	xr819: sdio_wifi@1 {
		reg = <1>;
	};
};

&mmc1_pins_a {
	bias-pull-up;
};

&ohci0 {
	status = "okay";
};

&ohci1 {
	status = "okay";
};

&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_pins_a>;
	status = "okay";
};

&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart1_pins>;
	status = "disabled";
};

&uart2 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart2_pins>;
	status = "disabled";
};

&usb_otg {
	dr_mode = "peripheral";
	status = "okay";
};

&usbphy {
	/*
	 * USB Type-A port VBUS is always on. However, MicroUSB VBUS can only
	 * power up the board; when it's used as OTG port, this VBUS is
	 * always off even if the board is powered via GPIO pins.
	 */
	status = "okay";
	usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
};