// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Device Tree file for Buffalo LinkStation LS421DE
 *
 * Copyright (C) 2020 Daniel González Cabanelas <dgcbueu@gmail.com>
 */

/dts-v1/;

#include "armada-370.dtsi"
#include "mvebu-linkstation-fan.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
	model = "Buffalo LinkStation LS421DE";
	compatible = "buffalo,ls421de", "marvell,armada370", "marvell,armada-370-xp";

	aliases {
		led-boot = &led_boot;
		led-failsafe = &led_failsafe;
		led-running = &led_power;
		led-upgrade = &led_upgrade;
	};

	chosen {
		bootargs = "console=ttyS0,115200 earlyprintk noinitrd rootfstype=squashfs";
		stdout-path = "serial0:115200n8";
		append-rootblock = "nullparameter="; /* override the bootloader args */
	};

	memory {
		device_type = "memory";
		reg = <0x00000000 0x20000000>; /* 512 MB */
	};

	soc {
		ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
			  MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000
			  MBUS_ID(0x09, 0x01) 0 0xf1100000 0x10000>;
	};

	gpio_fan {
		gpios = <&gpio0 13 GPIO_ACTIVE_HIGH
			 &gpio0 14 GPIO_ACTIVE_HIGH>;
		alarm-gpios = <&gpio0 10 GPIO_ACTIVE_HIGH>;
	};

	gpio_keys {
		compatible = "gpio-keys";
		#address-cells = <1>;
		#size-cells = <0>;
		pinctrl-0 = <&pmx_buttons>;
		pinctrl-names = "default";

		power {
			label = "Power Switch";
			linux,code = <KEY_POWER>;
			linux,input-type = <EV_SW>;
			gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
		};

		function {
			label = "Function Button";
			linux,code = <KEY_CONFIG>;
			gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
		};
	};

	gpio_leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&pmx_leds1 &pmx_leds2>;

		system_red {
			label = "ls421de:red:system";
			gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
		};

		led_power: power_white {
			label = "ls421de:white:power";
			gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
			default-state = "on";
		};

		led_failsafe: power_red {
			label = "ls421de:red:power";
			gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
		};

		led_upgrade: power_orange {
			label = "ls421de:orange:power";
			gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
		};

		led_boot: system_white {
			label = "ls421de:white:system";
			gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
		};

		hdd1_red {
			label = "ls421de:red:hdd1";
			gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
			default-state = "off";
			linux,default-trigger = "disk-activity";
		};

		hdd2_red {
			label = "ls421de:red:hdd2";
			gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
			default-state = "off";
			linux,default-trigger = "disk-activity";
		};
	};

	regulators {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <0>;
		pinctrl-0 = <&pmx_power_usb &pmx_power_hdd1 &pmx_power_hdd2>;
		pinctrl-names = "default";

		usb_power: regulator@0 {
			compatible = "regulator-fixed";
			reg = <0>;
			regulator-name = "USB";
			regulator-min-microvolt = <5000000>;
			regulator-max-microvolt = <5000000>;
			enable-active-high;
			regulator-always-on;
			regulator-boot-on;
			gpio = <&gpio0 5 GPIO_ACTIVE_HIGH>;
		};

		sata1_power: regulator@1 {
			compatible = "regulator-fixed";
			reg = <1>;
			regulator-name = "HDD1";
			regulator-min-microvolt = <12000000>;
			regulator-max-microvolt = <12000000>;
			startup-delay-us = <2000000>;
			enable-active-high;
			regulator-always-on;
			regulator-boot-on;
			gpio = <&gpio0 8 GPIO_ACTIVE_HIGH>;
		};

		sata2_power: regulator@2 {
			compatible = "regulator-fixed";
			reg = <2>;
			regulator-name = "HDD2";
			regulator-min-microvolt = <12000000>;
			regulator-max-microvolt = <12000000>;
			startup-delay-us = <4000000>;
			enable-active-high;
			regulator-always-on;
			regulator-boot-on;
			gpio = <&gpio0 9 GPIO_ACTIVE_HIGH>;
		};
	};

	/* FIXME: this driver needs to be aware of the LED2 eth phy use,
	   which must be set to off state before shutting down the machine */
	restart_poweroff {
		compatible = "restart-poweroff";
	};
};

&eth1 {
	pinctrl-0 = <&ge1_rgmii_pins>;
	pinctrl-names = "default";
	status = "okay";
	phy-handle = <&ethphy0>;
	phy-connection-type = "rgmii-id";
};

&i2c0 {
	pinctrl-0 = <&i2c0_pins>;
	pinctrl-names = "default";
	clock-frequency = <100000>;
	status = "okay";

	rs5c372a: rs5c372a@32 {
		compatible = "ricoh,rs5c372a";
		reg = <0x32>;
	};
};

&mdio {
	pinctrl-0 = <&mdio_pins>;
	pinctrl-names = "default";

	ethphy0: ethernet-phy@0 { /* Marvell 88E1518 */
		reg = <0>;
		/*
		 * LED2 is used to inform, at restart time, if the power
		 * switch was slided to the "off" position.
		 * Page 0x3, Register 0x10, bits 8-11:
		 *     0x800: LED2 off, power off the machine
		 *     0x900: LED2 on, boot the machine
		 */
		marvell,reg-init = <0x3 0x10 0x1 0x1991>, /* LED function */
				   <0x3 0x11 0x1 0x4401>, /* LED polarity */
				   <0x3 0x12 0x1 0x4905>; /* LED timer */
	};
};

&pciec {
	status = "okay";
	/* Connected to uPD720202 USB 3.0 Host */
	pcie@1,0 {
		status = "okay";
	};
};

&pmsu {
	pinctrl-0 = <&pmx_power_cpu>;
	pinctrl-names = "default";
};

&rtc {
	status = "disabled";
};

&sata {
	nr-ports = <2>;
	status = "okay";
};

&sdio {
	pinctrl-0 = <&sdio_pins2>;
	pinctrl-names = "default";
	status = "okay";
	/* No CD or WP GPIOs */
	broken-cd;
};

&uart0 {
	status = "okay";
};

&usb0 {
	status = "okay";
};

&nand_controller {
	status = "okay";

	nand@0 {
		reg = <0>;
		label = "pxa3xx_nand-0";
		nand-rb = <0>;
		marvell,nand-keep-config;
		nand-on-flash-bbt;
		nand-ecc-strength = <4>;
		nand-ecc-step-size = <512>;

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				label = "kernel";
				reg = <0x00000000 0x02000000>;  /* 32 MiB */
			};

			partition@2000000 {
				label = "ubi";
				reg = <0x02000000 0x1e000000>;  /* 480 MiB */
			};
		};
	};
};

&spi0 {
	status = "okay";
	pinctrl-0 = <&spi0_pins2>;
	pinctrl-names = "default";

	spi-flash@0 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "mxicy,mx25l8005", "jedec,spi-nor";
		reg = <0>; /* Chip select 0 */
		spi-max-frequency = <50000000>;

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				reg = <0x00000 0xf0000>; /* 960 KiB*/
				label = "u-boot";
				read-only;
			};
			partition@f0000 {
				reg = <0xf0000 0x10000>; /* 64 KiB */
				label = "u-boot-env";
			};
		};
	};
};

&pinctrl {
	pmx_power_cpu: pmx-power-cpu {
		marvell,pins = "mpp4";
		marvell,function = "vdd";
	};
	pmx_power_usb: pmx-power-usb {
		marvell,pins = "mpp5";
		marvell,function = "gpo";
	};
	pmx_power_hdd1: pmx-power-hdd1 {
		marvell,pins = "mpp8";
		marvell,function = "gpio";
	};
	pmx_power_hdd2: pmx-power-hdd2 {
		marvell,pins = "mpp9";
		marvell,function = "gpo";
	};
	pmx_fan_lock: pmx-fan-lock {
		marvell,pins = "mpp10";
		marvell,function = "gpio";
	};
	pmx_hdd_present: pmx-hdd-present {
		marvell,pins = "mpp11", "mpp12";
		marvell,function = "gpio";
	};
	pmx_fan_high: pmx-fan-high {
		marvell,pins = "mpp13";
		marvell,function = "gpio";
	};
	pmx_fan_low: pmx-fan-low {
		marvell,pins = "mpp14";
		marvell,function = "gpio";
	};
	pmx_buttons: pmx-buttons {
		marvell,pins = "mpp15", "mpp16";
		marvell,function = "gpio";
	};
	pmx_leds1: pmx-leds {
		marvell,pins = "mpp7", "mpp54", "mpp59", "mpp61";
		marvell,function = "gpo";
	};
	pmx_leds2: pmx-leds {
		marvell,pins = "mpp55", "mpp57", "mpp62";
		marvell,function = "gpio";
	};
};