u-boot/arch/arm/dts/sun8i-r16-parrot.dts

/*
 * Copyright 2016 Quentin Schulz
 *
 * Quentin Schulz <quentin.schulz@free-electrons.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-a33.dtsi"
#include "sunxi-common-regulators.dtsi"

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

/ {
	model = "Allwinner R16 EVB (Parrot)";
	compatible = "allwinner,parrot", "allwinner,sun8i-a33";

	aliases {
		serial0 = &uart0;
	};

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

	leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&led_pins_parrot>;

		led1 {
			label = "parrot:led1:usr";
			gpio = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* PE17 */
		};

		led2 {
			label = "parrot:led2:usr";
			gpio = <&pio 4 16 GPIO_ACTIVE_HIGH>; /* PE16 */
		};
	};

	wifi_pwrseq: wifi_pwrseq {
		compatible = "mmc-pwrseq-simple";
		reset-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL06 */
	};

};

&codec {
	status = "okay";
};

&dai {
	status = "okay";
};

&ehci0 {
	status = "okay";
};

&i2c1 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c1_pins_a>;
	status = "okay";

	/*
	 * FIXME: An as-yet-unknown accelerometer is connected to this
	 * i2c bus.
	 */
};

&lradc {
	vref-supply = <&reg_aldo3>;
	status = "okay";

	button@0 {
		label = "V+";
		linux,code = <KEY_VOLUMEUP>;
		channel = <0>;
		voltage = <190000>;
	};

	button@1 {
		label = "V-";
		linux,code = <KEY_VOLUMEDOWN>;
		channel = <0>;
		voltage = <390000>;
	};

};

&mmc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_parrot>;
	vmmc-supply = <&reg_dcdc1>;
	cd-gpios = <&pio 3 14 GPIO_ACTIVE_LOW>; /* PD14 */
	bus-width = <4>;
	status = "okay";
};

&mmc1 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc1_pins_a>, <&wifi_reset_pin_parrot>;
	vmmc-supply = <&reg_aldo1>;
	mmc-pwrseq = <&wifi_pwrseq>;
	bus-width = <4>;
	non-removable;
	status = "okay";
};

&mmc2 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc2_8bit_pins>;
	vmmc-supply = <&reg_dcdc1>;
	bus-width = <8>;
	non-removable;
	cap-mmc-hw-reset;
	status = "okay";
};

&mmc2_8bit_pins {
	drive-strength = <40>;
	bias-pull-up;
};

&ohci0 {
	status = "okay";
};

&pio {
	mmc0_cd_pin_parrot: mmc0_cd_pin@0 {
		pins = "PD14";
		function = "gpio_in";
		bias-pull-up;
	};

	led_pins_parrot: led_pins@0 {
		pins = "PE16", "PE17";
		function = "gpio_out";
	};

	usb0_id_det: usb0_id_detect_pin@0 {
		pins = "PD10";
		function = "gpio_in";
		bias-pull-up;
	};

	usb1_vbus_pin_parrot: usb1_vbus_pin@0 {
		pins = "PD12";
		function = "gpio_out";
	};
};

&r_pio {
	wifi_reset_pin_parrot: wifi_reset_pin@0 {
		pins = "PL6";
		function = "gpio_out";
	};
};

&r_rsb {
	status = "okay";

	axp22x: pmic@3a3 {
		compatible = "x-powers,axp223";
		reg = <0x3a3>;
		interrupt-parent = <&nmi_intc>;
		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
		drivevbus-supply = <&reg_vcc5v0>;
		x-powers,drive-vbus-en;
	};
};

#include "axp223.dtsi"

&reg_aldo1 {
	regulator-always-on;
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "vcc-io";
};

&reg_aldo2 {
	regulator-always-on;
	regulator-min-microvolt = <2350000>;
	regulator-max-microvolt = <2650000>;
	regulator-name = "vdd-dll";
};

&reg_aldo3 {
	regulator-always-on;
	regulator-min-microvolt = <2700000>;
	regulator-max-microvolt = <3300000>;
	regulator-name = "vcc-pll-avcc";
};

&reg_dc5ldo {
	regulator-always-on;
	regulator-min-microvolt = <900000>;
	regulator-max-microvolt = <1400000>;
	regulator-name = "vdd-cpus";
};

&reg_dcdc1 {
	regulator-always-on;
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "vcc-3v0";
};

&reg_dcdc2 {
	regulator-always-on;
	regulator-min-microvolt = <900000>;
	regulator-max-microvolt = <1400000>;
	regulator-name = "vdd-sys";
};

&reg_dcdc3 {
	regulator-always-on;
	regulator-min-microvolt = <900000>;
	regulator-max-microvolt = <1400000>;
	regulator-name = "vdd-cpu";
};

&reg_dcdc5 {
	regulator-always-on;
	regulator-min-microvolt = <1500000>;
	regulator-max-microvolt = <1500000>;
	regulator-name = "vcc-dram";
};

&reg_dldo1 {
	/*
	 * TODO: WiFi chip needs dldo1 AND dldo2 to be on to be powered.
	 * Remove next line once it is possible to sync two regulators.
	 */
	regulator-always-on;
	regulator-min-microvolt = <3300000>;
	regulator-max-microvolt = <3300000>;
	regulator-name = "vcc-wifi0";
};

&reg_dldo2 {
	/*
	 * TODO: WiFi chip needs dldo1 AND dldo2 to be on to be powered.
	 * Remove next line once it is possible to sync two regulators.
	 */
	regulator-always-on;
	regulator-min-microvolt = <3300000>;
	regulator-max-microvolt = <3300000>;
	regulator-name = "vcc-wifi1";
};

&reg_dldo3 {
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "vcc-3v0-csi";
};

&reg_drivevbus {
	regulator-name = "usb0-vbus";
	status = "okay";
};

&reg_eldo1 {
	regulator-min-microvolt = <1200000>;
	regulator-max-microvolt = <1200000>;
	regulator-name = "vcc-1v2-hsic";
};

&reg_eldo2 {
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "vcc-dsp";
};

&reg_eldo3 {
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "eldo3";
};

&reg_usb1_vbus {
	pinctrl-names = "default";
	pinctrl-0 = <&usb1_vbus_pin_parrot>;
	gpio = <&pio 3 12 GPIO_ACTIVE_HIGH>; /* PD12 */
	status = "okay";
};

&sound {
	status = "okay";
};

&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_pins_b>;
	status = "okay";
};

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

&usb_power_supply {
	status = "okay";
};

&usbphy {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&usb0_id_det>;
	usb0_vbus-supply = <&reg_drivevbus>;
	usb0_id_det-gpios = <&pio 3 10 GPIO_ACTIVE_HIGH>; /* PD10 */
	usb0_vbus_power-supply = <&usb_power_supply>;
	usb1_vbus-supply = <&reg_usb1_vbus>;
};