overlay.dts

/*
 * Copyright (C) 2017 Aravinth Panch <aravinth@senic.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/;
/plugin/;

/ {
    /* 
     * not sure if this needs to be included
     * model = "Senic Hub";
     */
	compatible = "friendlyarm,nanopi-neo", "allwinner,sun8i-h3";

	fragment@0 {
		target-path = "/aliases";
		__overlay__ {
			uart2 = "/soc/serial@1c28800";
			serial2 = &uart2;
		};
	};

	fragment@1 {
		target = <&leds>;
		__overlay__ {
			pinctrl-0 = <&leds_npi>, <&leds_r_npi>, <&led_senic_white>;

			/* White LED on Senic Hub Baseboard */
			senic_white {
				label = "senic_white";
				gpios = <&pio 6 6 0>;
				linux,default-trigger = "on";
			};
		};
	};
	
	fragment@2 {
		target-path = "/";
		__overlay__ {
			gpio_keys {
				compatible = "gpio-keys";
				input-name = "reset";
				pinctrl-names = "default";
				pinctrl-0 = <&button_senic_reset>;

				/* Reset Button Senic Hub Baseboard */
				reset@0 {
					label = "reset";
					linux,code = <0x198>;
					gpios = <&pio 6 7 0>;
				};
			};
		};
	};
	
	fragment@3 {
		/*
		 * enable all USB
		 */
		target = <&ehci1>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@4 {
		/*
		 * enable all USB
		 */
		target = <&ehci2>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@5 {
		/*
		 * enable all USB
		 */
		target = <&ehci3>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@6 {
		/*
		 * enable all USB
		 */
		target = <&ohci1>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@7 {
		/*
		 * enable all USB
		 */
		target = <&ohci2>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@8 {
		/*
		 * enable all USB
		 */
		target = <&ohci3>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@9 {
		/*
		 * enable all USB
		 */
		target = <&usbphy>;
		__overlay__ {
			/* USB VBUS is always on */
			status = "okay";
		};
	};

	fragment@10 {
		target = <&pio>;
		__overlay__ {
			/* White LED on Senic Hub Baseboard */
			led_senic_white: led_pins@0 {
				allwinner,pins = "PG6";
				allwinner,function = "gpio_out";
				allwinner,drive = <0x0>;
				allwinner,pull = <0x0>;
			};

			/* Reset Button Senic Hub Baseboard */
			button_senic_reset: key_pins@0 {
				allwinner,pins = "PG7";
				allwinner,function = "gpio_in";
				allwinner,drive = <0x0>;
				allwinner,pull = <0x0>;
			};
		};
	};
	
	fragment@11 {
		target = <&uart2>;
		 __overlay__ {
			pinctrl-names = "default";
			pinctrl-0 = <&uart2_pins &uart2_pins_rts_cts>;
			status = "okay";
		};
	};
};