/*
 * Device Tree file for Synology DS414
 *
 * Copyright (C) 2014, Arnaud EBALARD <arno@natisbad.org>
 *
 * This program 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.
 *
 * Note: this Device Tree assumes that the bootloader has remapped the
 * internal registers to 0xf1000000 (instead of the old 0xd0000000).
 * The 0xf1000000 is the default used by the recent, DT-capable, U-Boot
 * bootloaders provided by Marvell. It is used in recent versions of
 * DSM software provided by Synology. Nonetheless, some earlier boards
 * were delivered with an older version of u-boot that left internal
 * registers mapped at 0xd0000000. If you have such a device you will
 * not be able to directly boot a kernel based on this Device Tree. In
 * that case, the preferred solution is to update your bootloader (e.g.
 * by upgrading to latest version of DSM, or building a new one and
 * installing it from u-boot prompt) or adjust the Devive Tree
 * (s/0xf1000000/0xd0000000/ in 'ranges' below).
 */

/dts-v1/;

#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include "armada-xp-mv78230.dtsi"

/ {
	model = "Synology DS414";
	compatible = "synology,ds414", "marvell,armadaxp-mv78230",
		     "marvell,armadaxp", "marvell,armada-370-xp";

	chosen {
		bootargs = "console=ttyS0,115200 earlyprintk";
		stdout-path = &uart0;
	};

	aliases {
		spi0 = &spi0;
	};

	memory {
		device_type = "memory";
		reg = <0 0x00000000 0 0x40000000>; /* 1GB */
	};

	soc {
		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000>;

		pcie-controller {
			status = "okay";

			/*
			 * Connected to Marvell 88SX7042 SATA-II controller
			 * handling the four disks.
			 */
			pcie@1,0 {
				/* Port 0, Lane 0 */
				status = "okay";
			};

			/*
			 * Connected to EtronTech EJ168A XHCI controller
			 * providing the two rear USB 3.0 ports.
			 */
			pcie@5,0 {
				/* Port 1, Lane 0 */
				status = "okay";
			};
		};

		internal-regs {

			/* RTC is provided by Seiko S-35390A below */
			rtc@10300 {
				status = "disabled";
			};

			spi0: spi@10600 {
				status = "okay";
				u-boot,dm-pre-reloc;

				spi-flash@0 {
					u-boot,dm-pre-reloc;
					#address-cells = <1>;
					#size-cells = <1>;
					compatible = "micron,n25q064";
					reg = <0>; /* Chip select 0 */
					spi-max-frequency = <20000000>;

					/*
					 * Warning!
					 *
					 * Synology u-boot uses its compiled-in environment
					 * and it seems Synology did not care to change u-boot
					 * default configuration in order to allow saving a
					 * modified environment at a sensible location. So,
					 * if you do a 'saveenv' under u-boot, your modified
					 * environment will be saved at 1MB after the start
					 * of the flash, i.e. in the middle of the uImage.
					 * For that reason, it is strongly advised not to
					 * change the default environment, unless you know
					 * what you are doing.
					 */
					partition@00000000 { /* u-boot */
						label = "RedBoot";
						reg = <0x00000000 0x000d0000>; /* 832KB */
					};

					partition@000c0000 { /* uImage */
						label = "zImage";
						reg = <0x000d0000 0x002d0000>; /* 2880KB */
					};

					partition@003a0000 { /* uInitramfs */
						label = "rd.gz";
						reg = <0x003a0000 0x00430000>; /* 4250KB */
					};

					partition@007d0000 { /* MAC address and serial number */
						label = "vendor";
						reg = <0x007d0000 0x00010000>; /* 64KB */
					};

					partition@007e0000 {
						label = "RedBoot config";
						reg = <0x007e0000 0x00010000>; /* 64KB */
					};

					partition@007f0000 {
						label = "FIS directory";
						reg = <0x007f0000 0x00010000>; /* 64KB */
					};
				};
			};

			i2c@11000 {
				clock-frequency = <400000>;
				status = "okay";

				s35390a: s35390a@30 {
					 compatible = "sii,s35390a";
					 reg = <0x30>;
				};
			};

			/* Connected to a header on device's PCB. This
			 * provides the main console for the device.
			 *
			 * Warning: the device may not boot with a 3.3V
			 * USB-serial converter connected when the power
			 * button is pressed. The converter needs to be
			 * connected a few seconds after pressing the
			 * power button. This is possibly due to UART0_TXD
			 * pin being sampled at reset (bit 0 of SAR).
			 */
			serial@12000 {
				status = "okay";
				u-boot,dm-pre-reloc;
			};

			/* Connected to a Microchip PIC16F883 for power control */
			serial@12100 {
				status = "okay";
			};

			poweroff@12100 {
				compatible = "synology,power-off";
				reg = <0x12100 0x100>;
				clocks = <&coreclk 0>;
			};

			/* Front USB 2.0 port */
			usb@50000 {
				status = "okay";
			};

			mdio {
				phy0: ethernet-phy@0 { /* Marvell 88E1512 */
					reg = <0>;
				};

				phy1: ethernet-phy@1 { /* Marvell 88E1512 */
					reg = <1>;
				};
			};

			ethernet@70000 {
				status = "okay";
				pinctrl-0 = <&ge0_rgmii_pins>;
				pinctrl-names = "default";
				phy = <&phy1>;
				phy-mode = "rgmii-id";
			};

			ethernet@74000 {
				pinctrl-0 = <&ge1_rgmii_pins>;
				pinctrl-names = "default";
				status = "okay";
				phy = <&phy0>;
				phy-mode = "rgmii-id";
			};
		};
	};

	regulators {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <0>;
		pinctrl-0 = <&sata1_pwr_pin &sata2_pwr_pin
			     &sata3_pwr_pin &sata4_pwr_pin>;
		pinctrl-names = "default";

		sata1_regulator: sata1-regulator {
			compatible = "regulator-fixed";
			reg = <1>;
			regulator-name = "SATA1 Power";
			regulator-min-microvolt = <5000000>;
			regulator-max-microvolt = <5000000>;
			startup-delay-us = <2000000>;
			enable-active-high;
			regulator-always-on;
			regulator-boot-on;
			gpio = <&gpio1 10 GPIO_ACTIVE_HIGH>;
		};

		sata2_regulator: sata2-regulator {
			compatible = "regulator-fixed";
			reg = <2>;
			regulator-name = "SATA2 Power";
			regulator-min-microvolt = <5000000>;
			regulator-max-microvolt = <5000000>;
			startup-delay-us = <4000000>;
			enable-active-high;
			regulator-always-on;
			regulator-boot-on;
			gpio = <&gpio1 12 GPIO_ACTIVE_HIGH>;
		};

		sata3_regulator: sata3-regulator {
			compatible = "regulator-fixed";
			reg = <3>;
			regulator-name = "SATA3 Power";
			regulator-min-microvolt = <5000000>;
			regulator-max-microvolt = <5000000>;
			startup-delay-us = <6000000>;
			enable-active-high;
			regulator-always-on;
			regulator-boot-on;
			gpio = <&gpio1 13 GPIO_ACTIVE_HIGH>;
		};

		sata4_regulator: sata4-regulator {
			compatible = "regulator-fixed";
			reg = <4>;
			regulator-name = "SATA4 Power";
			regulator-min-microvolt = <5000000>;
			regulator-max-microvolt = <5000000>;
			startup-delay-us = <8000000>;
			enable-active-high;
			regulator-always-on;
			regulator-boot-on;
			gpio = <&gpio1 14 GPIO_ACTIVE_HIGH>;
		};
	};
};

&pinctrl {
	sata1_pwr_pin: sata1-pwr-pin {
		marvell,pins = "mpp42";
		marvell,function = "gpio";
	};

	sata2_pwr_pin: sata2-pwr-pin {
		marvell,pins = "mpp44";
		marvell,function = "gpio";
	};

	sata3_pwr_pin: sata3-pwr-pin {
		marvell,pins = "mpp45";
		marvell,function = "gpio";
	};

	sata4_pwr_pin: sata4-pwr-pin {
		marvell,pins = "mpp46";
		marvell,function = "gpio";
	};

	sata1_pres_pin: sata1-pres-pin {
		marvell,pins = "mpp34";
		marvell,function = "gpio";
	};

	sata2_pres_pin: sata2-pres-pin {
		marvell,pins = "mpp35";
		marvell,function = "gpio";
	};

	sata3_pres_pin: sata3-pres-pin {
		marvell,pins = "mpp40";
		marvell,function = "gpio";
	};

	sata4_pres_pin: sata4-pres-pin {
		marvell,pins = "mpp41";
		marvell,function = "gpio";
	};

	syno_id_bit0_pin: syno-id-bit0-pin {
		marvell,pins = "mpp26";
		marvell,function = "gpio";
	};

	syno_id_bit1_pin: syno-id-bit1-pin {
		marvell,pins = "mpp28";
		marvell,function = "gpio";
	};

	syno_id_bit2_pin: syno-id-bit2-pin {
		marvell,pins = "mpp29";
		marvell,function = "gpio";
	};

	fan1_alarm_pin: fan1-alarm-pin {
		marvell,pins = "mpp33";
		marvell,function = "gpio";
	};

	fan2_alarm_pin: fan2-alarm-pin {
		marvell,pins = "mpp32";
		marvell,function = "gpio";
	};
};
