alistair23-linux/arch/arm/boot/dts/sun9i-a80-optimus.dts

/*
 * Copyright 2014 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.
 *
 *     You should have received a copy of the GNU General Public
 *     License along with this file; if not, write to the Free
 *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
 *     MA 02110-1301 USA
 *
 * 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 "sun9i-a80.dtsi"
#include "sunxi-common-regulators.dtsi"

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

/ {
	model = "Merrii A80 Optimus Board";
	compatible = "merrii,a80-optimus", "allwinner,sun9i-a80";

	aliases {
		serial0 = &uart0;
		serial1 = &uart4;
	};

	chosen {
		bootargs = "earlyprintk console=ttyS0,115200";
	};

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

		/* The LED names match those found on the board */

		led2 {
			label = "optimus:led2:usr";
			gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>;
		};

		/* led3 is on PM15, in R_PIO */

		led4 {
			label = "optimus:led4:usr";
			gpios = <&pio 7 0 GPIO_ACTIVE_HIGH>;
		};
	};
};

&i2c3 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c3_pins_a>;
	status = "okay";
};

&i2c3_pins_a {
	/* Enable internal pull-up */
	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
};

&pio {
	led_pins_optimus: led-pins@0 {
		allwinner,pins = "PH0", "PH1";
		allwinner,function = "gpio_out";
		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
	};

	mmc0_cd_pin_optimus: mmc0_cd_pin@0 {
		allwinner,pins = "PH18";
		allwinner,function = "gpio_in";
		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
	};
};

&mmc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins>, <&mmc0_cd_pin_optimus>;
	vmmc-supply = <&reg_vcc3v0>;
	bus-width = <4>;
	cd-gpios = <&pio 7 18 GPIO_ACTIVE_HIGH>; /* PH8 */
	cd-inverted;
	status = "okay";
};

&mmc2 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc2_8bit_pins>;
	vmmc-supply = <&reg_vcc3v0>;
	bus-width = <8>;
	non-removable;
	status = "okay";
};

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

&uart4 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart4_pins_a>;
	status = "okay";
};

&uart4_pins_a {
	/* Enable internal pull-up */
	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
};