/*
 * sun9i-a80-cx-a99.dts - Device Tree file for the Sunchip CX-A99 board.
 *
 * Copyright (C) 2017 Rask Ingemann Lambertsen <rask@formelder.dk>
 *
 * 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.
 */

/*
 * The Sunchip CX-A99 board is found in several similar Android media
 * players, such as:
 *
 * Instabox Fantasy A8 (no external antenna)
 * Jesurun CS-Q8 (ships with larger remote control)
 * Jesurun Maxone
 * Rikomagic (RKM) MK80/MK80LE
 * Tronsmart Draco AW80 Meta/Telos
 *
 * See the Sunchip CX-A99 page on the Linux-sunxi wiki for more information.
 */

/dts-v1/;
#include "sun9i-a80.dtsi"

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

/ {
	model = "Sunchip CX-A99";
	compatible = "sunchip,cx-a99", "allwinner,sun9i-a80";

	aliases {
		serial0 = &uart0;
	};

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

	leds {
		compatible = "gpio-leds";

		blue {
			gpios = <&pio 6 10 GPIO_ACTIVE_HIGH>;	/* PG10 */
			label = "cx-a99:blue:status";
		};

		red {
			gpios = <&pio 6 11 GPIO_ACTIVE_HIGH>;	/* PG11 */
			label = "cx-a99:red:status";
		};
	};

	powerseq_wifi: powerseq-wifi {
		compatible = "mmc-pwrseq-simple";
		clocks = <&ac100_rtc 1>;
		clock-names = "ext_clock";
		reset-gpios = <&r_pio 1 0 GPIO_ACTIVE_LOW>;	/* PM0 */
		post-power-on-delay-ms = <1>;	/* Minimum 2 cycles. */
	};

	/* USB 2.0 connector closest to the 12 V power connector. */
	reg_usb1_vbus: regulator-usb1-vbus {
		compatible = "regulator-fixed";
		regulator-name = "usb1-vbus";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		gpio = <&r_pio 0 7 /* no flag support */ 0>;	/* PL7 */
		enable-active-high;
	};

	/* USB 2.0 connector next to the SD card slot. */
	reg_usb3_vbus: regulator-usb3-vbus {
		compatible = "regulator-fixed";
		regulator-name = "usb3-vbus";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		gpio = <&r_pio 0 8 /* no flag support */ 0>;	/* PL8 */
		enable-active-high;
	};

	/*
	 * OZ80120 voltage regulator for the four Cortex-A15 CPU cores.
	 * Although the regulator can output 750 - 1200 mV, the permissible
	 * range for the CPU cores is only 800 - 1100 mV.
	 */
	reg_vdd_cpub: regulator-vdd-cpub {
		compatible = "regulator-gpio";

		regulator-always-on;
		regulator-min-microvolt = < 800000>;
		regulator-max-microvolt = <1100000>;
		regulator-name = "vdd-cpub";

		/* Note: GPIO flags are not supported here . */
		enable-gpio = <&r_pio 0 2 /* flags n/a */ 0>;	/* PL2 */
		enable-active-high;
		gpios = <&r_pio 0 3 /* no flag support */ 0>,	/* PL3 */
			<&r_pio 0 4 /* no flag support */ 0>,	/* PL4 */
			<&r_pio 0 5 /* no flag support */ 0>;	/* PL5 */

		gpios-states = <1 0 0>;
		states = <	 750000 0x7
				 800000 0x3
				 850000 0x5
				 900000 0x1
				 950000 0x6
				1000000 0x2
				1100000 0x4
				1200000 0x0>;
	};
};

&ehci0 {
	status = "okay";
};

&ehci2 {
	status = "okay";
};

/*
 * SD card slot. Although the GPIO pin for card detection is listed as capable
 * of generating interrupts in the "A80 User Manual", this doesn't work for
 * some unknown reason, so poll the GPIO for card detection. This is also what
 * the vendor sys_config.fex file specifies.
 */
&mmc0 {
	bus-width = <4>;
	cd-gpios = <&pio 7 17 GPIO_ACTIVE_LOW>;	/* PH17 */
	broken-cd;				/* Poll. */
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins>;
	vmmc-supply = <&reg_dcdce>;
	status = "okay";
};

/* Ampak AP6335 IEEE 802.11 a/b/g/n/ac Wifi. */
&mmc1 {
	bus-width = <4>;
	non-removable;
	pinctrl-names = "default";
	pinctrl-0 = <&mmc1_pins>;
	vmmc-supply = <&reg_cldo3>;	/* See cldo2,cldo3 note. */
	vqmmc-supply = <&reg_aldo2>;
	mmc-pwrseq = <&powerseq_wifi>;
	status = "okay";
};

/* On-board eMMC card. */
&mmc2 {
	bus-width = <8>;
	non-removable;
	pinctrl-names = "default";
	pinctrl-0 = <&mmc2_8bit_pins>;
	vmmc-supply = <&reg_dcdce>;
	status = "okay";
};

&osc32k {
	clocks = <&ac100_rtc 0>;
};

&r_ir {
	status = "okay";
};

&r_rsb {
	status = "okay";

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

		ac100_codec: codec {
			compatible = "x-powers,ac100-codec";
			interrupt-parent = <&r_pio>;
			interrupts = <0 9 IRQ_TYPE_LEVEL_LOW>;	/* PL9 */
			#clock-cells = <0>;
			clock-output-names = "4M_adda";
		};

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

	pmic@745 {
		compatible = "x-powers,axp808", "x-powers,axp806";
		x-powers,master-mode;
		reg = <0x745>;
		interrupt-parent = <&nmi_intc>;
		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
		interrupt-controller;
		#interrupt-cells = <1>;

		swin-supply = <&reg_dcdce>;

		regulators {
			reg_aldo1: aldo1 {
				regulator-boot-on;
				regulator-min-microvolt = <3000000>;
				regulator-max-microvolt = <3000000>;
				regulator-name = "vcc-3v0";
			};

			/* Supplies pin groups G and M. */
			reg_aldo2: aldo2 {
				regulator-boot-on;
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3600000>;
				regulator-name = "vddio-wifi-codec";
			};

			reg_aldo3: aldo3 {
				regulator-boot-on;
				regulator-min-microvolt = <2500000>;
				regulator-max-microvolt = <2500000>;
				regulator-name = "vddio-gmac";
			};

			reg_bldo1: bldo1 {
				regulator-always-on;	/* Hang if disabled */
				regulator-min-microvolt = <1700000>;
				regulator-max-microvolt = <1900000>;
				regulator-name = "vdd18-dll-vcc18-pll";
			};

			reg_bldo2: bldo2 {
				regulator-always-on;	/* Hang if disabled */
				regulator-min-microvolt = < 800000>;
				regulator-max-microvolt = <1100000>;
				regulator-name = "vdd-cpus";
			};

			reg_bldo3: bldo3 {
				regulator-min-microvolt = <1100000>;
				regulator-max-microvolt = <1300000>;
				regulator-name = "vcc12-hsic";
			};

			reg_bldo4: bldo4 {
				regulator-boot-on;
				regulator-min-microvolt = < 800000>;
				regulator-max-microvolt = <1100000>;
				regulator-name = "vdd09-hdmi";
			};

			/* Supplies PLx pins which control some regulators. */
			reg_cldo1: cldo1 {
				regulator-always-on;
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-name = "vcc-pl-led";
			};

			/*
			 * cldo2 and cldo3 are connected in parallel.
			 * There is currently no way to express that.
			 * For now, use regulator-always-on on cldo2 and lock
			 * the voltage on both to 3.3 V.
			 */
			reg_cldo2: cldo2 {
				regulator-always-on;
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-name = "vbat2-wifi+bt";
			};

			reg_cldo3: cldo3 {
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-name = "vbat1-wifi+bt";
			};

			reg_dcdca: dcdca {
				regulator-always-on;
				regulator-min-microvolt = < 800000>;
				regulator-max-microvolt = <1100000>;
				regulator-name = "vdd-cpua";
			};

			reg_dcdcb: dcdcb {
				regulator-always-on;
				regulator-min-microvolt = <1450000>;
				regulator-max-microvolt = <1550000>;
				regulator-name = "vcc-dram";
			};

			reg_dcdcc: dcdcc {
				regulator-min-microvolt = < 800000>;
				regulator-max-microvolt = <1100000>;
				regulator-name = "vdd-gpu";
			};

			reg_dcdcd: dcdcd {
				regulator-always-on;	/* Hang if disabled. */
				regulator-min-microvolt = < 800000>;
				regulator-max-microvolt = <1100000>;
				regulator-name = "vdd-sys";
			};

			/* Supplies pin groups B-F and H. */
			reg_dcdce: dcdce {
				regulator-always-on;
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-name = "vcc-io-mmc-spdif";
			};

			reg_sw: sw {
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-name = "vcc-gmac-codec";
			};
		};
	};
};

/*
 * 5-pin connector opposite of the SD card slot:
 * 1 = GND (pointed to by small triangle), 2 = GND, 3 = 3.3 V, 4 = RX, 5 = TX.
 */
&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_pins_a>;
	status = "okay";
};

&usbphy1 {
	phy-supply = <&reg_usb1_vbus>;
	status = "okay";
};

&usbphy3 {
	phy-supply = <&reg_usb3_vbus>;
	status = "okay";
};