alistair23-linux/arch/arm/boot/dts/sun6i-a31s-yones-toptech-bs1078-v2.dts

/*
 * Copyright 2015 Lawrence Yu <lyu@micile.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 "sun6i-a31s.dtsi"
#include "sunxi-common-regulators.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/sun4i-a10.h>

/ {
	model = "Yones TopTech BS1078 v2 Tablet";
	compatible = "yones-toptech,bs1078-v2", "allwinner,sun6i-a31s";

	aliases {
		serial0 = &uart0;
		i2c1 = &i2c1;
		i2c2 = &i2c2;
	};

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

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

&i2c2 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c2_pins_a>;
	status = "okay";
};

&ehci0 {
	status = "okay";
};

&ehci1 {
	status = "okay";
};

&ohci0 {
	status = "okay";
};

&ohci1 {
	status = "okay";
};

&pio {
	mmc0_cd_pin_bs1078v2: mmc0_cd_pin@0 {
		allwinner,pins = "PA8";
		allwinner,function = "gpio_in";
		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
	};
};

&mmc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_bs1078v2>;
	vmmc-supply = <&reg_vcc3v0>;
	bus-width = <4>;
	cd-gpios = <&pio 0 8 GPIO_ACTIVE_HIGH>; /* PA8 */
	cd-inverted;
	status = "okay";
};

&mmc0_pins_a {
	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
};

&p2wi {
	status = "okay";

	axp22x: pmic@68 {
		compatible = "x-powers,axp221";
		reg = <0x68>;
		interrupt-parent = <&nmi_intc>;
		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
	};
};

#include "axp22x.dtsi"

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

&reg_dc1sw {
	regulator-name = "vcc-lcd-usb2";
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
};

&reg_dc5ldo {
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1320000>;
	regulator-name = "vdd-cpus";
};

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

&reg_dcdc2 {
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1320000>;
	regulator-name = "vdd-gpu";
};

&reg_dcdc3 {
	regulator-always-on;
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1320000>;
	regulator-name = "vdd-cpu";
};

&reg_dcdc4 {
	regulator-always-on;
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1320000>;
	regulator-name = "vdd-sys-dll";
};

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

&reg_dldo1 {
	regulator-min-microvolt = <3300000>;
	regulator-max-microvolt = <3300000>;
	regulator-name = "vcc-wifi";
};

/* Voltage source for I2C pullup resistors for I2C Bus 0 */
&reg_dldo3 {
	regulator-min-microvolt = <2800000>;
	regulator-max-microvolt = <2800000>;
	regulator-name = "vddio-csi";
};

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

&usbphy {
	usb1_vbus-supply = <&reg_dldo1>;
	usb2_vbus-supply = <&reg_dc1sw>;
	status = "okay";
};