arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts - third_party/linux - Git at Google

 /*
  * Copyright 2015 Chen-Yu Tsai
  *
  * Chen-Yu Tsai <wens@csie.org>
  *
  * 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-a83t.dtsi"

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

 / {
 	model = "Cubietech Cubietruck Plus";
 	compatible = "cubietech,cubietruck-plus", "allwinner,sun8i-a83t";

 	aliases {
 		ethernet0 = &emac;
 		serial0 = &uart0;
 	};

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

 	leds {
 		compatible = "gpio-leds";

 		blue {
 			label = "cubietruck-plus:blue:usr";
 			gpios = <&pio 3 25 GPIO_ACTIVE_HIGH>; /* PD25 */
 		};

 		orange {
 			label = "cubietruck-plus:orange:usr";
 			gpios = <&pio 3 26 GPIO_ACTIVE_HIGH>; /* PD26 */
 		};

 		white {
 			label = "cubietruck-plus:white:usr";
 			gpios = <&pio 3 27 GPIO_ACTIVE_HIGH>; /* PD27 */
 		};

 		green {
 			label = "cubietruck-plus:green:usr";
 			gpios = <&pio 4 4 GPIO_ACTIVE_HIGH>; /* PE4 */
 		};
 	};

 	usb-hub {
 		/* I2C is not connected */
 		compatible = "smsc,usb3503";
 		initial-mode = <1>; /* initialize in HUB mode */
 		disabled-ports = <1>;
 		intn-gpios = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
 		reset-gpios = <&pio 4 16 GPIO_ACTIVE_HIGH>; /* PE16 */
 		connect-gpios = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* PE17 */
 		refclk-frequency = <19200000>;
 	};

 	reg_usb1_vbus: reg-usb1-vbus {
 		compatible = "regulator-fixed";
 		regulator-name = "usb1-vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		regulator-boot-on;
 		enable-active-high;
 		gpio = <&pio 3 29 GPIO_ACTIVE_HIGH>; /* PD29 */
 	};

 	reg_usb2_vbus: reg-usb2-vbus {
 		compatible = "regulator-fixed";
 		regulator-name = "usb2-vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		regulator-boot-on;
 		enable-active-high;
 		gpio = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
 	};

 	sound {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "On-board SPDIF";

 		simple-audio-card,cpu {
 			sound-dai = <&spdif>;
 		};

 		simple-audio-card,codec {
 			sound-dai = <&spdif_out>;
 		};
 	};

 	spdif_out: spdif-out {
 		#sound-dai-cells = <0>;
 		compatible = "linux,spdif-dit";
 	};

 	wifi_pwrseq: wifi_pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		clocks = <&ac100_rtc 1>;
 		clock-names = "ext_clock";
 		/* The WiFi low power clock must be 32768 Hz */
 		assigned-clocks = <&ac100_rtc 1>;
 		assigned-clock-rates = <32768>;
 		/* enables internal regulator and de-asserts reset */
 		reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 WL-PMU-EN */
 	};
 };

 &ehci0 {
 	/* GL830 USB-to-SATA bridge here */
 	status = "okay";
 };

 &ehci1 {
 	/* USB3503 HSIC USB 2.0 hub here */
 	status = "okay";
 };

 &emac {
 	pinctrl-names = "default";
 	pinctrl-0 = <&emac_rgmii_pins>;
 	phy-supply = <&reg_dldo4>;
 	phy-handle = <&rgmii_phy>;
 	phy-mode = "rgmii";
 	status = "okay";
 };

 &mdio {
 	rgmii_phy: ethernet-phy@1 {
 		compatible = "ethernet-phy-ieee802.3-c22";
 		reg = <1>;
 	};
 };

 &mmc0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc0_pins>;
 	vmmc-supply = <&reg_dcdc1>;
 	bus-width = <4>;
 	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
 	status = "okay";
 };

 &mmc1 {
 	vmmc-supply = <&reg_dcdc1>;
 	vqmmc-supply = <&reg_sw>;
 	mmc-pwrseq = <&wifi_pwrseq>;
 	bus-width = <4>;
 	non-removable;
 	status = "okay";
 };

 &mmc2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc2_8bit_emmc_pins>;
 	vmmc-supply = <&reg_dcdc1>;
 	bus-width = <8>;
 	non-removable;
 	cap-mmc-hw-reset;
 	status = "okay";
 };

 &r_rsb {
 	status = "okay";

 	axp81x: pmic@3a3 {
 		compatible = "x-powers,axp818", "x-powers,axp813";
 		reg = <0x3a3>;
 		interrupt-parent = <&r_intc>;
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
 		eldoin-supply = <&reg_dcdc1>;
 		swin-supply = <&reg_dcdc1>;
 		x-powers,drive-vbus-en;
 	};

 	ac100: codec@e89 {
 		compatible = "x-powers,ac100";
 		reg = <0xe89>;

 		ac100_codec: codec {
 			compatible = "x-powers,ac100-codec";
 			interrupt-parent = <&r_pio>;
 			interrupts = <0 11 IRQ_TYPE_LEVEL_LOW>; /* PL11 */
 			#clock-cells = <0>;
 			clock-output-names = "4M_adda";
 		};

 		ac100_rtc: rtc {
 			compatible = "x-powers,ac100-rtc";
 			interrupt-parent = <&r_intc>;
 			interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&ac100_codec>;
 			#clock-cells = <1>;
 			clock-output-names = "cko1_rtc",
 					     "cko2_rtc",
 					     "cko3_rtc";
 		};
 	};
 };

 #include "axp81x.dtsi"

 &reg_aldo1 {
 	regulator-always-on;
 	regulator-min-microvolt = <1800000>;
 	regulator-max-microvolt = <1800000>;
 	regulator-name = "vcc-1v8";
 };

 &reg_aldo2 {
 	regulator-always-on;
 	regulator-min-microvolt = <1800000>;
 	regulator-max-microvolt = <1800000>;
 	regulator-name = "dram-pll";
 };

 &reg_aldo3 {
 	regulator-always-on;
 	regulator-min-microvolt = <3000000>;
 	regulator-max-microvolt = <3000000>;
 	regulator-name = "avcc";
 };

 &reg_dcdc1 {
 	/*
 	 * The schematics say this should be 3.3V, but the FEX file says
 	 * it should be 3V. The latter makes sense, as the WiFi module's
 	 * I/O is indirectly powered from DCDC1, through SW. It is rated
 	 * at 2.98V maximum.
 	 */
 	regulator-always-on;
 	regulator-min-microvolt = <3000000>;
 	regulator-max-microvolt = <3000000>;
 	regulator-name = "vcc-3v";
 };

 &reg_dcdc2 {
 	regulator-always-on;
 	regulator-min-microvolt = <700000>;
 	regulator-max-microvolt = <1100000>;
 	regulator-name = "vdd-cpua";
 };

 &reg_dcdc3 {
 	regulator-always-on;
 	regulator-min-microvolt = <700000>;
 	regulator-max-microvolt = <1100000>;
 	regulator-name = "vdd-cpub";
 };

 &reg_dcdc4 {
 	regulator-min-microvolt = <700000>;
 	regulator-max-microvolt = <1100000>;
 	regulator-name = "vdd-gpu";
 };

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

 &reg_dcdc6 {
 	regulator-always-on;
 	regulator-min-microvolt = <900000>;
 	regulator-max-microvolt = <900000>;
 	regulator-name = "vdd-sys";
 };

 &reg_dldo2 {
 	regulator-min-microvolt = <3300000>;
 	regulator-max-microvolt = <3300000>;
 	regulator-name = "dp-pwr";
 };

 &reg_dldo3 {
 	regulator-always-on;
 	regulator-min-microvolt = <2500000>;
 	regulator-max-microvolt = <2500000>;
 	regulator-name = "ephy-io";
 };

 &reg_dldo4 {
 	/*
 	 * The PHY requires 20ms after all voltages are applied until core
 	 * logic is ready and 30ms after the reset pin is de-asserted.
 	 * Set a 100ms delay to account for PMIC ramp time and board traces.
 	 */
 	regulator-enable-ramp-delay = <100000>;
 	regulator-min-microvolt = <3300000>;
 	regulator-max-microvolt = <3300000>;
 	regulator-name = "ephy";
 };

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

 &reg_eldo1 {
 	regulator-min-microvolt = <1200000>;
 	regulator-max-microvolt = <1200000>;
 	regulator-name = "dp-bridge-1";
 };

 &reg_eldo2 {
 	regulator-min-microvolt = <1200000>;
 	regulator-max-microvolt = <1200000>;
 	regulator-name = "dp-bridge-2";
 };

 &reg_fldo1 {
 	/* TODO should be handled by USB PHY */
 	regulator-always-on;
 	regulator-min-microvolt = <1080000>;
 	regulator-max-microvolt = <1320000>;
 	regulator-name = "vdd12-hsic";
 };

 &reg_fldo2 {
 	/*
 	 * Despite the embedded CPUs core not being used in any way,
 	 * this must remain on or the system will hang.
 	 */
 	regulator-always-on;
 	regulator-min-microvolt = <700000>;
 	regulator-max-microvolt = <1100000>;
 	regulator-name = "vdd-cpus";
 };

 &reg_rtc_ldo {
 	regulator-name = "vcc-rtc";
 };

 &reg_sw {
 	regulator-name = "vcc-wifi-io";
 };

 &spdif {
 	status = "okay";
 };

 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pb_pins>;
 	status = "okay";
 };

 &usbphy {
 	usb1_vbus-supply = <&reg_usb1_vbus>;
 	usb2_vbus-supply = <&reg_usb2_vbus>;
 	status = "okay";
 };
	/*
	* Copyright 2015 Chen-Yu Tsai
	*
	* Chen-Yu Tsai <wens@csie.org>
	*
	* 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-a83t.dtsi"

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

	/ {
	model = "Cubietech Cubietruck Plus";
	compatible = "cubietech,cubietruck-plus", "allwinner,sun8i-a83t";

	aliases {
	ethernet0 = &emac;
	serial0 = &uart0;
	};

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

	leds {
	compatible = "gpio-leds";

	blue {
	label = "cubietruck-plus:blue:usr";
	gpios = <&pio 3 25 GPIO_ACTIVE_HIGH>; /* PD25 */
	};

	orange {
	label = "cubietruck-plus:orange:usr";
	gpios = <&pio 3 26 GPIO_ACTIVE_HIGH>; /* PD26 */
	};

	white {
	label = "cubietruck-plus:white:usr";
	gpios = <&pio 3 27 GPIO_ACTIVE_HIGH>; /* PD27 */
	};

	green {
	label = "cubietruck-plus:green:usr";
	gpios = <&pio 4 4 GPIO_ACTIVE_HIGH>; /* PE4 */
	};
	};

	usb-hub {
	/* I2C is not connected */
	compatible = "smsc,usb3503";
	initial-mode = <1>; /* initialize in HUB mode */
	disabled-ports = <1>;
	intn-gpios = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
	reset-gpios = <&pio 4 16 GPIO_ACTIVE_HIGH>; /* PE16 */
	connect-gpios = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* PE17 */
	refclk-frequency = <19200000>;
	};

	reg_usb1_vbus: reg-usb1-vbus {
	compatible = "regulator-fixed";
	regulator-name = "usb1-vbus";
	regulator-min-microvolt = <5000000>;
	regulator-max-microvolt = <5000000>;
	regulator-boot-on;
	enable-active-high;
	gpio = <&pio 3 29 GPIO_ACTIVE_HIGH>; /* PD29 */
	};

	reg_usb2_vbus: reg-usb2-vbus {
	compatible = "regulator-fixed";
	regulator-name = "usb2-vbus";
	regulator-min-microvolt = <5000000>;
	regulator-max-microvolt = <5000000>;
	regulator-boot-on;
	enable-active-high;
	gpio = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
	};

	sound {
	compatible = "simple-audio-card";
	simple-audio-card,name = "On-board SPDIF";

	simple-audio-card,cpu {
	sound-dai = <&spdif>;
	};

	simple-audio-card,codec {
	sound-dai = <&spdif_out>;
	};
	};

	spdif_out: spdif-out {
	#sound-dai-cells = <0>;
	compatible = "linux,spdif-dit";
	};

	wifi_pwrseq: wifi_pwrseq {
	compatible = "mmc-pwrseq-simple";
	clocks = <&ac100_rtc 1>;
	clock-names = "ext_clock";
	/* The WiFi low power clock must be 32768 Hz */
	assigned-clocks = <&ac100_rtc 1>;
	assigned-clock-rates = <32768>;
	/* enables internal regulator and de-asserts reset */
	reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 WL-PMU-EN */
	};
	};

	&ehci0 {
	/* GL830 USB-to-SATA bridge here */
	status = "okay";
	};

	&ehci1 {
	/* USB3503 HSIC USB 2.0 hub here */
	status = "okay";
	};

	&emac {
	pinctrl-names = "default";
	pinctrl-0 = <&emac_rgmii_pins>;
	phy-supply = <&reg_dldo4>;
	phy-handle = <&rgmii_phy>;
	phy-mode = "rgmii";
	status = "okay";
	};

	&mdio {
	rgmii_phy: ethernet-phy@1 {
	compatible = "ethernet-phy-ieee802.3-c22";
	reg = <1>;
	};
	};

	&mmc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins>;
	vmmc-supply = <&reg_dcdc1>;
	bus-width = <4>;
	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
	status = "okay";
	};

	&mmc1 {
	vmmc-supply = <&reg_dcdc1>;
	vqmmc-supply = <&reg_sw>;
	mmc-pwrseq = <&wifi_pwrseq>;
	bus-width = <4>;
	non-removable;
	status = "okay";
	};

	&mmc2 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc2_8bit_emmc_pins>;
	vmmc-supply = <&reg_dcdc1>;
	bus-width = <8>;
	non-removable;
	cap-mmc-hw-reset;
	status = "okay";
	};

	&r_rsb {
	status = "okay";

	axp81x: pmic@3a3 {
	compatible = "x-powers,axp818", "x-powers,axp813";
	reg = <0x3a3>;
	interrupt-parent = <&r_intc>;
	interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
	eldoin-supply = <&reg_dcdc1>;
	swin-supply = <&reg_dcdc1>;
	x-powers,drive-vbus-en;
	};

	ac100: codec@e89 {
	compatible = "x-powers,ac100";
	reg = <0xe89>;

	ac100_codec: codec {
	compatible = "x-powers,ac100-codec";
	interrupt-parent = <&r_pio>;
	interrupts = <0 11 IRQ_TYPE_LEVEL_LOW>; /* PL11 */
	#clock-cells = <0>;
	clock-output-names = "4M_adda";
	};

	ac100_rtc: rtc {
	compatible = "x-powers,ac100-rtc";
	interrupt-parent = <&r_intc>;
	interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
	clocks = <&ac100_codec>;
	#clock-cells = <1>;
	clock-output-names = "cko1_rtc",
	"cko2_rtc",
	"cko3_rtc";
	};
	};
	};

	#include "axp81x.dtsi"

	&reg_aldo1 {
	regulator-always-on;
	regulator-min-microvolt = <1800000>;
	regulator-max-microvolt = <1800000>;
	regulator-name = "vcc-1v8";
	};

	&reg_aldo2 {
	regulator-always-on;
	regulator-min-microvolt = <1800000>;
	regulator-max-microvolt = <1800000>;
	regulator-name = "dram-pll";
	};

	&reg_aldo3 {
	regulator-always-on;
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "avcc";
	};

	&reg_dcdc1 {
	/*
	* The schematics say this should be 3.3V, but the FEX file says
	* it should be 3V. The latter makes sense, as the WiFi module's
	* I/O is indirectly powered from DCDC1, through SW. It is rated
	* at 2.98V maximum.
	*/
	regulator-always-on;
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "vcc-3v";
	};

	&reg_dcdc2 {
	regulator-always-on;
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1100000>;
	regulator-name = "vdd-cpua";
	};

	&reg_dcdc3 {
	regulator-always-on;
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1100000>;
	regulator-name = "vdd-cpub";
	};

	&reg_dcdc4 {
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1100000>;
	regulator-name = "vdd-gpu";
	};

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

	&reg_dcdc6 {
	regulator-always-on;
	regulator-min-microvolt = <900000>;
	regulator-max-microvolt = <900000>;
	regulator-name = "vdd-sys";
	};

	&reg_dldo2 {
	regulator-min-microvolt = <3300000>;
	regulator-max-microvolt = <3300000>;
	regulator-name = "dp-pwr";
	};

	&reg_dldo3 {
	regulator-always-on;
	regulator-min-microvolt = <2500000>;
	regulator-max-microvolt = <2500000>;
	regulator-name = "ephy-io";
	};

	&reg_dldo4 {
	/*
	* The PHY requires 20ms after all voltages are applied until core
	* logic is ready and 30ms after the reset pin is de-asserted.
	* Set a 100ms delay to account for PMIC ramp time and board traces.
	*/
	regulator-enable-ramp-delay = <100000>;
	regulator-min-microvolt = <3300000>;
	regulator-max-microvolt = <3300000>;
	regulator-name = "ephy";
	};

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

	&reg_eldo1 {
	regulator-min-microvolt = <1200000>;
	regulator-max-microvolt = <1200000>;
	regulator-name = "dp-bridge-1";
	};

	&reg_eldo2 {
	regulator-min-microvolt = <1200000>;
	regulator-max-microvolt = <1200000>;
	regulator-name = "dp-bridge-2";
	};

	&reg_fldo1 {
	/* TODO should be handled by USB PHY */
	regulator-always-on;
	regulator-min-microvolt = <1080000>;
	regulator-max-microvolt = <1320000>;
	regulator-name = "vdd12-hsic";
	};

	&reg_fldo2 {
	/*
	* Despite the embedded CPUs core not being used in any way,
	* this must remain on or the system will hang.
	*/
	regulator-always-on;
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1100000>;
	regulator-name = "vdd-cpus";
	};

	&reg_rtc_ldo {
	regulator-name = "vcc-rtc";
	};

	&reg_sw {
	regulator-name = "vcc-wifi-io";
	};

	&spdif {
	status = "okay";
	};

	&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_pb_pins>;
	status = "okay";
	};

	&usbphy {
	usb1_vbus-supply = <&reg_usb1_vbus>;
	usb2_vbus-supply = <&reg_usb2_vbus>;
	status = "okay";
	};