> root@debian:~# dmesg | grep -i 'bad'
> [   22.284760] Scanning device for bad blocks
> [   22.289172] Bad eraseblock 7 at 0x0000000e0000
>

DS414	Marvell Armada XP MV78230	Dual Core	2	Yes	Armadaxp	DDR3 1 GB

 #: name                 size		         offset		    mask_flags
 0: u-boot              0x000000500000		0x000000000000		1
 1: uImage              0x000000600000		0x000000500000		0
 2: uRamdisk            0x000000500000		0x000000b00000		0
 3: image.cfs           0x00000b900000		0x000001000000		0
 4: rescue_fw           0x000000f00000		0x00000c900000		0
 5: config              0x000001400000		0x00000d800000		0
 6: reserve1            0x000000a00000		0x00000ec00000		0
 7: reserve2            0x000000900000		0x00000f600000		0

setenv mtdparts mtdparts=armada-nand:5m(u-boot)ro,6m@5m(uImage),5m@11m(uRamdisk),185m@16m(image.cfs),15m@201m(rescue_fw),20m@216m(config),10m@236m(reserve1),9m@246m(reserve2)
saveenv

[    0.000000][     TO] INITRD: 0x00f00000+0x004b1000 overlaps in-use memory region - disabling initrd

usb start
fatload usb 0:1 0xa00000 uImage
fatload usb 0:1 0x2000000 uRamdisk
bootm 0xa00000 0x2000000

setenv bootargs root=/dev/ram console=ttyS0,115200
setenv bootcmd 'nand read.e 0x0a00000 0x0500000 0x0500000;nand read.e 0x2000000 0x0a00000 0x0500000;bootm 0x0a00000 0x2000000'
saveenv

Quote
CyberPK
> Look to my post:
> https://forum.doozan.com/read.php?2,28939,98649#msg-98649

[   27.480958] r8188eu 1-1.3:1.0 wlxxxxxxxxxxxxx: renamed from wlan0

root@debian:~# apt-get install grub
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package grub is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  grub2-common

E: Package 'grub' has no installation candidate

Quote

10. Set up netconsole. It's important to set up neconsole if you don't already have serial console connected. If you have serial console, don't set up netconsole at this moment, because it will interfere with serial console.

If you've flashed the default environments in step 8 then activate netconsole with the following envs:

Adjust 192.168.0.xxx and 192.168.0.yyy below to the real numbers in your network configuration. 192.168.0.xxx is this plug IP address, and 192.168.0.yyy is the IP address of the netconsole server where it will monitor the output from the this plug (adjust them to the real values in your own local network settings).

fw_setenv preboot_nc 'setenv nc_ready 0; for pingstat in 1 2 3 4 5; do; sleep 1; if run if_netconsole; then setenv nc_ready 1; fi; done; if test $nc_ready -eq 1; then run start_netconsole; fi'
fw_setenv preboot 'run preboot_nc'
fw_setenv ipaddr '192.168.0.xxx'
fw_setenv serverip '192.168.0.yyy'

/*
 * Device Tree file for Marvell Armada 375 evaluation board
 * (DB-88F6720)
 *
 *  Copyright (C) 2014 Marvell
 *
 * Gregory CLEMENT <gregory.clement@free-electrons.com>
 * Thomas Petazzoni <thomas.petazzoni@free-electrons.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/;
#include <dt-bindings/gpio/gpio.h>
#include "armada-385.dtsi"

/ {
	model = "WD MyCloud Ex2 Ultra: Marvell Armada 385";
	compatible = "marvell,a385-db-ap", "marvell,armada385", "marvell,armada380";

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

	memory@0 {
		device_type = "memory";
		reg = <0x00000000 0x40000000>; /* 512 MB */
	};

	soc {
		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
			  MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
			  MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000
			  MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000
			  MBUS_ID(0x0c, 0x04) 0 0xf1200000 0x100000>;

		internal-regs {
			i2c@11000 {
				status = "okay";
				clock-frequency = <100000>;
				
				/*
				eeprom@54 {
					compatible = "atmel,24c64";
					reg = <0x54>;
				};
				*/
			};

			i2c@11100 {
				status = "okay";
				clock-frequency = <100000>;
			};
			
			sdhci@d8000 {
				broken-cd;
				wp-inverted;
				bus-width = <8>;
				status = "disabled";
				no-1-8-v;
			};

			serial@12000 {
				status = "okay";
			};

			serial@12100 {
				status = "okay";
			};

			pinctrl@18000 {
			/*
				sata_sd_pins: sata-sd-pins {
					marvell,pins = "mpp63", "mpp66";
					marvell,function = "gpio";
				};
			*/
				/* use only one pin for UART1, as mpp20 is used by sata0 */
				uart1_pins: uart-pins-1 {
					marvell,pins = "mpp19";
					marvell,function = "ua1";
				};

				xhci0_vbus_pins: xhci0-vbus-pins {
					marvell,pins = "mpp26";
					marvell,function = "gpio";
				};

				xhci1_vbus_pins: xhci1-vbus-pins {
					marvell,pins = "mpp27";
					marvell,function = "gpio";
				};

				sata0_pins: sata-pins-0 {
					marvell,pins = "mpp55";
					marvell,function = "sata0";
				};

				sata1_pins: sata-pins-1 {
					marvell,pins = "mpp56";
					marvell,function = "sata1";
				};

				led_pins: led-pins {
					marvell,pins = "mpp43", "mpp52", "mpp53", "mpp54", "mpp48", "mpp58";
					marvell,function = "gpio";
				};

				btn_pins: btn-pins {
					marvell,pins = "mpp50";
					marvell,function = "gpio";
				};
			};

			mdio@72004 {
				phy0: ethernet-phy@0 {
					marvell,reg-init = <3 16 0 0x101e>;	// Init eth leds
					reg = <0>;
				};
			};

			ethernet@34000 {
				phy = <&phy0>;
				phy-mode = "sgmii";
				buffer-manager = <&bm>;
				bm,pool-long = <0>;
				bm,pool-short = <1>;
				status = "okay";
			};

			rtc@a3800 {
				status = "okay";
			};

			usb0: usb@58000 {
				status = "okay";
			};
			
			sata@a8000 {
				pinctrl-names = "default";
				//pinctrl-0 = <&sata0_pins &sata1_pins>;
				#address-cells = <1>;
				#size-cells = <0>;
				status = "okay";
				/*
				sata0: sata-port@0 {
					reg = <0>;
					target-supply = <&reg_5v_sata0>;
				};
				
				sata1: sata-port@1 {
					reg = <0>;
					target-supply = <&reg_5v_sata1>;
				};
				*/
			};
			
			nfc: flash@d0000 {
				status = "okay";
				num-cs = <1>;
				nand-ecc-strength = <4>;
				nand-ecc-step-size = <512>;
				marvell,nand-keep-config;
				marvell,nand-enable-arbiter;
				nand-on-flash-bbt;

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

					partition@0 {
						label = "u-boot";
						reg = <0x0000000 0x00500000>;
						read-only;
					};

					partition@500000 {
						label = "uImage";
						reg = <0x00500000 0x00500000>;
					};

					partition@a00000 {
						label = "uRamdisk";
						reg = <0x00a00000 0x00500000>;
					};

					partition@f00000 {
						label = "image.cfs";
						reg = <0x00f00000 0x0b900000>;
					};

					partition@c800000 {
						label = "Recovery";
						reg = <0x0c800000 0x00f00000>;
					};

					partition@d70000 {
						label = "config";
						reg = <0x0d700000 0x01400000>;
					};

					partition@eb00000 {
						label = "reserve1";
						reg = <0x0eb00000 0x00a00000>;
					};

					partition@f500000 {
						label = "reserve2";
						reg = <0x0f500000 0x00a00000>;
					};
				};
			};
			
			crypto@9D000 {
				status = "okay";
			};

			usb3@f0000 {
				usb-phy = <&usb3_0_phy>;
				status = "okay";
			};

			usb3@f8000 {
				usb-phy = <&usb3_1_phy>;
				status = "okay";
			};
		};
		
		/*pcie {
			status = "okay";
			pcie@1,0 {
				status = "okay";
			};

			pcie@2,0 {
				status = "okay";
			};

			pcie@3,0 {
				status = "okay";
			};
		};
		*/
	};
	
	gpio-leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&led_pins>;

		// Triggers for kernel v4.14:
		// [none] timer oneshot disk-activity ide-disk mtd nand-disk heartbeat backlight gpio cpu cpu0 cpu1 default-on panic
		hdd1-red {
			label = "Disk1:red";
			gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "disk-activity";
		};
		hdd2-red {
			label = "Disk2:red";
			gpios = <&gpio1 20 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "panic";
		};
		hdd1-blue {
			label = "Disk1:blue";
			gpios = <&gpio1 21 GPIO_ACTIVE_LOW>;
			default-state = "keep";
			//linux,default-trigger = "gpio";
		};
		hdd2-blue {
			label = "Disk2:blue";
			gpios = <&gpio1 22 GPIO_ACTIVE_LOW>;
			default-state = "keep";
			//linux,default-trigger = "gpio";
		};
	};

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

		btn-reset {
			label = "Reset";
			linux,code = <0x198>; // Restart=0x198, Power=0x116
			gpios = <&gpio1 18 GPIO_ACTIVE_LOW>;
			gpio-key,wakeup;
		};
	};

	usb3_0_phy: usb3_0_phy {
		compatible = "usb-nop-xceiv";
		vcc-supply = <&reg_usb3_0_vbus>;
	};
	
	usb3_1_phy: usb3_1_phy {
		compatible = "usb-nop-xceiv";
		vcc-supply = <&reg_usb3_1_vbus>;
	};

	reg_usb3_0_vbus: usb3-vbus0 {
		compatible = "regulator-fixed";
		regulator-name = "usb3-vbus0";
		pinctrl-names = "default";
		pinctrl-0 = <&xhci0_vbus_pins>;
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		regulator-always-on;
		gpio = <&gpio0 26 GPIO_ACTIVE_HIGH>;
	};

	reg_usb3_1_vbus: usb3-vbus1 {
		compatible = "regulator-fixed";
		regulator-name = "usb3-vbus1";
		pinctrl-names = "default";
		pinctrl-0 = <&xhci1_vbus_pins>;
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		regulator-always-on;
		gpio = <&gpio0 27 GPIO_ACTIVE_HIGH>;
	};
/*
	reg_sata0: pwr-sata0 {
		compatible = "regulator-fixed";
		regulator-name = "pwr_en_sata0";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		enable-active-high;
		regulator-boot-on;
		gpio = <&gpio1 23 GPIO_ACTIVE_HIGH>;
	};

	reg_5v_sata0: v5-sata0 {
		compatible = "regulator-fixed";
		regulator-name = "v5.0-sata0";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		vin-supply = <&reg_sata0>;
	};

	reg_12v_sata0: v12-sata0 {
		compatible = "regulator-fixed";
		regulator-name = "v12.0-sata0";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		vin-supply = <&reg_sata0>;
	};
	
	reg_sata1: pwr-sata1 {
		compatible = "regulator-fixed";
		regulator-name = "pwr_en_sata1";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		enable-active-high;
		regulator-boot-on;
		gpio = <&gpio1 24 GPIO_ACTIVE_HIGH>;
	};

	reg_5v_sata1: v5-sata1 {
		compatible = "regulator-fixed";
		regulator-name = "v5.0-sata1";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		vin-supply = <&reg_sata1>;
	};

	reg_12v_sata1: v12-sata1 {
		compatible = "regulator-fixed";
		regulator-name = "v12.0-sata1";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		vin-supply = <&reg_sata1>;
	};
	*/
};
/*
&ahci0 {
	status = "okay";
};

&ahci1 {
	status = "okay";
};
*/

&cesa {
	status = "okay";
};

&bm {
	status = "okay";
};

&bm_bppi {
	status = "okay";
};

Quote
You can try to assign another memory location for the uRamdisk, please try at 0x2000000

Quote
overlaps in-use memory region - disabling initrd

Quote
Does it mean that Kernel is still too big? Or I need to make uRamdisk smaller? Or the only solution is to patch the U-Boot?

Here is the config file for syslogd. If that SYSLOG_OPTS line is commented out like below, 
then the system logging will be back to disk (var/log). 

cat /etc/default/busybox-syslogd

# Defaults for busybox-syslogd initscript
# This is a POSIX shell fragment sourced by /etc/init.d/busybox-syslogd

# Additional options that are passed to the daemons.  Default is to log
# to ring buffer (to be read with logread(1)) and drop duplicates.
SYSLOG_OPTS="-C128"
KLOG_OPTS=""


Temporarily remove the option by commenting it out.

#SYSLOG_OPTS="-C128"

And then restart busybox-syslogd, or reboot the system.

VFS: Cannot open root device "ram" on unknown-block(1,0)

usb start
fatload usb 0:1 0xa00000 boot\uImage
fatload usb 0:1 0x2000000 boot\uRamdisk
bootm 0xa00000 0x2000000

Quote
vzhilov
Does it mean that Kernel is still too big? Or I need to make uRamdisk smaller? Or the only solution is to patch the U-Boot?

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Device Tree file for Western Digital My Cloud Expert Series EX2 Ultra
 * (BVBZ/Ranger Peak)
 *
 * Copyright (C) 2020
 *
 * Based on the code from:
 *
 * Copyright (C) 2019 Evgeny Kolesnikov <evgenyz@gmail.com>
 * Copyright (C) 2016 Martin Mueller <mm@sig21.net>
 * Copyright (C) 2013 Gregory CLEMENT <gregory.clement@free-electrons.com>
 * Copyright (C) 2014 Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 *
 */

/dts-v1/;
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
#include "armada-385.dtsi"

/ {
	model = "My Cloud Expert Series EX2 Ultra (BVBZ/Ranger Peak)";
	compatible = "wd,mcex2u", "marvell,armada385", "marvell,armada380";

	chosen {
		stdout-path = "console=ttyS0,115200 root=LABEL=rootfs earlyprintk";
	};

	memory {
		device_type = "memory";
		reg = <0x00000000 0x40000000>; /* 1024 MB */
	};

	soc {
		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
			  MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
			  MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000        /* CESA0: PHYS=0xf1100000 size 64K */
			  MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000        /* CESA1: PHYS=0xf1110000 */
			  MBUS_ID(0x0c, 0x04) 0 0xf1200000 0x100000       /*    BM: PHYS=0xf1200000 size 1M */
			  MBUS_ID(0x0b, 0x04) 0 0xf1300000 0x100000>;     /*   PNC: PHYS=0xf1300000 size 1M */

		internal-regs {
			timer@c200 {
				status = "okay";
			};

			i2c@11000 {
				status = "disabled";
			};

			i2c@11100 {
				status = "disabled";
			};

			uart0: serial@12000 {
				status = "okay";
			};

			/* Connected to Welltrend 6703F-OG240WT MCU
			 * which controls power, fan and other things
			 */
			uart1: serial@12100 {
				status = "okay";
			};

			poweroff@12100 {
				compatible = "uart-poweroff";
				reg = <0x12100 0x100>;
				clocks = <&coreclk 0>;
				baud = <19200>;
				cmd = [fa 03 03 01 00 00 fb];
				status = "okay";
			};

			restart@12100 {
				compatible = "uart-restart";
				reg = <0x12100 0x100>;
				clocks = <&coreclk 0>;
				baud = <19200>;
				cmd = [fa 03 03 02 00 00 fb];
				override;
				status = "okay";
			};
			
			pinctrl: pinctrl@18000 {
				xhci0_vbus_pins: xhci0-vbus-pins {
					marvell,pins = "mpp26";
					marvell,function = "gpio";
				};

				xhci1_vbus_pins: xhci1-vbus-pins {
					marvell,pins = "mpp27";
					marvell,function = "gpio";
				};

				sata0_pins: sata-pins-0 {
					marvell,pins = "mpp55";
					marvell,function = "gpio";
				};

				sata1_pins: sata-pins-1 {
					marvell,pins = "mpp56";
					marvell,function = "gpio";
				};

				sata_leds: sata-leds {
					marvell,pins = "mpp43", "mpp52", "mpp53", "mpp54", "mpp48", "mpp58";
					marvell,function = "gpio";
				};

				btn_pins: btn-pins {
					marvell,pins = "mpp50";
					marvell,function = "gpio";
				};
			};

			usb0: usb@58000 {
				status = "okay";
			};

			eth2: ethernet@34000 {
				status = "okay";
				phy = <&phy0>;
				phy-mode = "sgmii";
				buffer-manager = <&bm>;
				bm,pool-long = <0>;
				bm,pool-short = <1>;
			};

			mdio: mdio@72004 {
				phy0: ethernet-phy@0 {
					/* Init ETH LEDs */
					marvell,reg-init = <3 16 0 0x101e>;
					reg = <0>;
				};
			};

			cesa: crypto@90000 {
				status = "okay";
			};

			rtc: rtc@a3800 {
				status = "okay";
			};

			ahci0: sata@a8000 {
				pinctrl-names = "default";
				pinctrl-0 = <&sata0_pins>, <&sata1_pins>;
				status = "okay";
				#address-cells = <1>;
				#size-cells = <0>;

				sata0: sata-port@0 {
					reg = <0>;
					target-supply = <&reg_sata0>;
				};

				sata1: sata-port@1 {
					reg = <1>;
					target-supply = <&reg_sata1>;
				};

			};

			bm: bm@c8000 {
				status = "okay";
			};

			nand_controller: nand-controller@d0000 {
				status = "okay";

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

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

						partition@00000000 {
							label = "U-Boot";
							reg = <0x00000000 0x00500000>;    /*   5 MB */
							read-only;
						};

						partition@00500000 {
							label = "uImage";
							reg = <0x00500000 0x00500000>;    /*   5 MB */
						};

						partition@00a00000 {
							label = "uRamdisk";
							reg = <0x00a00000 0x00500000>;    /*   5 MB */
						};
							
						partition@00f00000 {
							label = "image.cfs";
							reg = <0x00f00000 0x0b900000>;    /* 185 MB */
						};

						partition@c800000 {
							label = "rescue fw";
							reg = <0x0c800000 0x00f00000>;    /*  15 MB */
						};
							
						partition@d70000 {
							label = "config";
							reg = <0x0d700000 0x01400000>;    /*  20 MB */
						};
							
						partition@eb00000 {
							label = "reserve1";
							reg = <0x0eb00000 0x00a00000>;    /*  10 MB */
						};
							
						partition@f500000 {
							label = "reserve2";
							reg = <0x0f500000 0x00a00000>;    /*  10 MB */
						};
					};
				};
			};

			usb3_0: usb3@f0000 {
				usb-phy = <&usb3_0_phy>;
				status = "okay";
			};

			usb3_1: usb3@f8000 {
				usb-phy = <&usb3_1_phy>;
				status = "okay";
			};
		};

		bm_bppi: bm-bppi {
			status = "okay";
		};
	};

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

		sata1-red-led {
			label = "wdmcex2u:red:hdd1";
			gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
			default-state = keep;
			panic-indicator;
		};
		sata2-red-led {
			label = "wdmcex2u:red:hdd2";
			gpios = <&gpio1 20 GPIO_ACTIVE_HIGH>;
			default-state = keep;
			panic-indicator;
		};
		sata1-blue-led {
			label = "wdmcex2u:blue:hdd1";
			gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;
			default-state = keep;
		};
		sata2-blue-led {
			label = "wdmcex2u:blue:hdd2";
			gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
			default-state = keep;
		};
	};

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

		reset {
			label = "reset";
			linux,code = <KEY_RESTART>;  // Restart=0x198, Power=0x116
			gpios = <&gpio1 18 GPIO_ACTIVE_LOW>;
			debounce-interval = <60>;
			wakeup-source;
		};
	};

	usb3_0_phy: usb3_0_phy {
		compatible = "usb-nop-xceiv";
		vcc-supply = <&reg_usb3_0_vbus>;
	};

	usb3_1_phy: usb3_1_phy {
		compatible = "usb-nop-xceiv";
		vcc-supply = <&reg_usb3_1_vbus>;
	};

	reg_usb3_0_vbus: usb3-vbus0 {
		compatible = "regulator-fixed";
		regulator-name = "usb3-vbus0";
		pinctrl-names = "default";
		pinctrl-0 = <&xhci0_vbus_pins>;
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		regulator-always-on;
		gpio = <&gpio0 26 GPIO_ACTIVE_HIGH>;
	};

	reg_usb3_1_vbus: usb3-vbus1 {
		compatible = "regulator-fixed";
		regulator-name = "usb3-vbus1";
		pinctrl-names = "default";
		pinctrl-0 = <&xhci1_vbus_pins>;
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		regulator-always-on;
		gpio = <&gpio0 27 GPIO_ACTIVE_HIGH>;
	};

	reg_sata0: pwr-sata0 {
		compatible = "regulator-fixed";
		regulator-name = "pwr_en_sata0";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		enable-active-high;
		regulator-boot-on;
		gpio = <&gpio1 23 GPIO_ACTIVE_HIGH>;
	};
	
	reg_sata1: pwr-sata1 {
		compatible = "regulator-fixed";
		regulator-name = "pwr_en_sata1";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		enable-active-high;
		regulator-boot-on;
		gpio = <&gpio1 24 GPIO_ACTIVE_HIGH>;
	};
};

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Device Tree file for Western Digital My Cloud Mirror Gen 2
 * (BWVZ/Grand Teton)
 *
 * Copyright (C) 2020
 *
 * Based on the code from:
 *
 * Copyright (C) 2019 Evgeny Kolesnikov <evgenyz@gmail.com>
 * Copyright (C) 2016 Martin Mueller <mm@sig21.net>
 * Copyright (C) 2013 Gregory CLEMENT <gregory.clement@free-electrons.com>
 * Copyright (C) 2014 Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 *
 */

/dts-v1/;
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
#include "armada-385.dtsi"

/ {
	model = "WD MyCloud Mirror Gen 2 (BWVZ/Grand Teton)";
	compatible = "wd,mcmg2", "marvell,armada385", "marvell,armada380";

	chosen {
		stdout-path = "console=ttyS0,115200";
	};

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

	soc {
		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
			  MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
			  MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000        /* CESA0: PHYS=0xf1100000 size 64K */
			  MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000        /* CESA1: PHYS=0xf1110000 */
			  MBUS_ID(0x0c, 0x04) 0 0xf1200000 0x100000       /*    BM: PHYS=0xf1200000 size 1M */
			  MBUS_ID(0x0b, 0x04) 0 0xf1300000 0x100000>;     /*   PNC: PHYS=0xf1300000 size 1M */

		internal-regs {
			timer@c200 {
				status = "okay";
			};

			i2c@11000 {
				status = "disabled";
			};

			i2c@11100 {
				status = "disabled";
			};

			uart0: serial@12000 {
				status = "okay";
			};

			/* Connected to Welltrend 6703F-OG240WT MCU
			 * which controls power, fan and other things
			 */
			uart1: serial@12100 {
				status = "okay";
			};

			poweroff@12100 {
				compatible = "uart-poweroff";
				reg = <0x12100 0x100>;
				clocks = <&coreclk 0>;
				baud = <19200>;
				cmd = [fa 03 03 01 00 00 fb];
				status = "okay";
			};

			restart@12100 {
				compatible = "uart-restart";
				reg = <0x12100 0x100>;
				clocks = <&coreclk 0>;
				baud = <19200>;
				cmd = [fa 03 03 02 00 00 fb];
				override;
				status = "okay";
			};
			
			pinctrl: pinctrl@18000 {
				xhci0_vbus_pins: xhci0-vbus-pins {
					marvell,pins = "mpp26";
					marvell,function = "gpio";
				};

				xhci1_vbus_pins: xhci1-vbus-pins {
					marvell,pins = "mpp27";
					marvell,function = "gpio";
				};

				sata0_pins: sata-pins-0 {
					marvell,pins = "mpp55";
					marvell,function = "gpio";
				};

				sata1_pins: sata-pins-1 {
					marvell,pins = "mpp56";
					marvell,function = "gpio";
				};

				sata_leds: sata-leds {
					marvell,pins = "mpp43", "mpp52", "mpp53", "mpp54", "mpp48", "mpp58";
					marvell,function = "gpio";
				};

				btn_pins: btn-pins {
					marvell,pins = "mpp50";
					marvell,function = "gpio";
				};
			};

			usb0: usb@58000 {
				status = "okay";
			};

			eth2: ethernet@34000 {
				status = "okay";
				phy = <&phy0>;
				phy-mode = "sgmii";
				buffer-manager = <&bm>;
				bm,pool-long = <0>;
				bm,pool-short = <1>;
			};

			mdio: mdio@72004 {
				phy0: ethernet-phy@0 {
					/* Init ETH LEDs */
					marvell,reg-init = <3 16 0 0x101e>;
					reg = <0>;
				};
			};

			cesa: crypto@90000 {
				status = "okay";
			};

			rtc: rtc@a3800 {
				status = "okay";
			};

			ahci0: sata@a8000 {
				pinctrl-names = "default";
				pinctrl-0 = <&sata0_pins>, <&sata1_pins>;
				status = "okay";
				#address-cells = <1>;
				#size-cells = <0>;

				sata0: sata-port@0 {
					reg = <0>;
					target-supply = <&reg_sata0>;
				};

				sata1: sata-port@1 {
					reg = <1>;
					target-supply = <&reg_sata1>;
				};

			};

			bm: bm@c8000 {
				status = "okay";
			};

			nand_controller: nand-controller@d0000 {
				status = "okay";

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

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

						partition@00000000 {
							label = "U-Boot";
							reg = <0x00000000 0x00500000>;    /*   5 MB */
							read-only;
						};

						partition@00500000 {
							label = "uImage";
							reg = <0x00500000 0x00500000>;    /*   5 MB */
						};

						partition@00a00000 {
							label = "uRamdisk";
							reg = <0x00a00000 0x00500000>;    /*   5 MB */
						};
							
						partition@00f00000 {
							label = "image.cfs";
							reg = <0x00f00000 0x0b900000>;    /* 185 MB */
						};

						partition@c800000 {
							label = "rescue fw";
							reg = <0x0c800000 0x00f00000>;    /*  15 MB */
						};
							
						partition@d70000 {
							label = "config";
							reg = <0x0d700000 0x01400000>;    /*  20 MB */
						};
							
						partition@eb00000 {
							label = "reserve1";
							reg = <0x0eb00000 0x00a00000>;    /*  10 MB */
						};
							
						partition@f500000 {
							label = "reserve2";
							reg = <0x0f500000 0x00a00000>;    /*  10 MB */
						};
					};
				};
			};

			usb3_0: usb3@f0000 {
				usb-phy = <&usb3_0_phy>;
				status = "okay";
			};

			usb3_1: usb3@f8000 {
				usb-phy = <&usb3_1_phy>;
				status = "okay";
			};
		};

		bm_bppi: bm-bppi {
			status = "okay";
		};
	};

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

		sata1-red-led {
			label = "wdmcmg2:red:hdd1";
			gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
			default-state = keep;
			panic-indicator;
		};
		sata2-red-led {
			label = "wdmcmg2:red:hdd2";
			gpios = <&gpio1 20 GPIO_ACTIVE_HIGH>;
			default-state = keep;
			panic-indicator;
		};
		sata1-blue-led {
			label = "wdmcmg2:blue:hdd1";
			gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;
			default-state = keep;
		};
		sata2-blue-led {
			label = "wdmcmg2:blue:hdd2";
			gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
			default-state = keep;
		};
	};

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

		reset {
			label = "reset";
			linux,code = <KEY_RESTART>;  // Restart=0x198, Power=0x116
			gpios = <&gpio1 18 GPIO_ACTIVE_LOW>;
			debounce-interval = <60>;
			wakeup-source;
		};
	};

	usb3_0_phy: usb3_0_phy {
		compatible = "usb-nop-xceiv";
		vcc-supply = <&reg_usb3_0_vbus>;
	};

	usb3_1_phy: usb3_1_phy {
		compatible = "usb-nop-xceiv";
		vcc-supply = <&reg_usb3_1_vbus>;
	};

	reg_usb3_0_vbus: usb3-vbus0 {
		compatible = "regulator-fixed";
		regulator-name = "usb3-vbus0";
		pinctrl-names = "default";
		pinctrl-0 = <&xhci0_vbus_pins>;
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		regulator-always-on;
		gpio = <&gpio0 26 GPIO_ACTIVE_HIGH>;
	};

	reg_usb3_1_vbus: usb3-vbus1 {
		compatible = "regulator-fixed";
		regulator-name = "usb3-vbus1";
		pinctrl-names = "default";
		pinctrl-0 = <&xhci1_vbus_pins>;
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		regulator-always-on;
		gpio = <&gpio0 27 GPIO_ACTIVE_HIGH>;
	};

	reg_sata0: pwr-sata0 {
		compatible = "regulator-fixed";
		regulator-name = "pwr_en_sata0";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		enable-active-high;
		regulator-boot-on;
		gpio = <&gpio1 23 GPIO_ACTIVE_HIGH>;
	};
	
	reg_sata1: pwr-sata1 {
		compatible = "regulator-fixed";
		regulator-name = "pwr_en_sata1";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
		enable-active-high;
		regulator-boot-on;
		gpio = <&gpio1 24 GPIO_ACTIVE_HIGH>;
	};
};

patch -p1 -d linux-stable < GrandTeton-20170708.patch

setenv bootcmd 'nand read.e 0x02000020 0x0500000 0x0500000; nand read.e 0x2900000 0x0a00000 0x0500000; bootm 0x02000020 0x2900000'
saveenv

Quote
When I boot from USB with reset button pressed I get kernel panic with ...

setenv set_bootargs_stock 'setenv bootargs root=/dev/ram console=ttyS0,115200'
setenv bootcmd_stock 'echo Booting from stock ... ; run set_bootargs_stock; printenv bootargs; nand read.e 0xa00000 0x500000 0x500000;nand read.e 0xf00000 0xa00000 0x500000;bootm 0xa00000 0xf00000'
setenv bootdev 'usb'
setenv device '0:1'
setenv load_image_addr '0x02000020'
setenv load_initrd_addr '0x2900000'
setenv load_image 'echo loading Image ...; ext2load $bootdev $device $load_image_addr /boot/uImage'
setenv load_initrd 'echo loading uInitrd ...; ext2load $bootdev $device $load_initrd_addr /boot/uInitrd'

setenv usb_set_bootargs 'setenv bootargs "console=ttyS0,115200 root=LABEL=rootfs rootdelay=10 $mtdparts earlyprintk=serial init=/bin/systemd"'
setenv bootcmd_usb 'echo Booting from USB ...; usb start; run usb_set_bootargs; if run load_image; then if run load_initrd; then bootm $load_image_addr $load_initrd_addr; else bootm $load_image_addr; fi; fi; usb stop'
setenv bootcmd 'setenv fdt_skip_update yes; setenv usbActive 0; run bootcmd_usb; setenv usbActive 1; run bootcmd_usb; setenv fdt_skip_update no; run bootcmd_stock; reset'

saveenv
reset

cp GrandTeton-20170708.patch u-boot/u-boot-2013.01-2014_T3.0p2
cd u-boot/u-boot-2013.01-2014_T3.0p2
patch -p1 < GrandTeton-20170708.patch
sudo ./xbuid.sh build

kwboot -t -B 115200 /dev/ttyUSB0 -b uboot_DS414r1.bin -p -a