Difference between revisions of "iMX6 OpenRex Ultra Recovery"
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<div style="float:right">__TOC__</div> | <div style="float:right">__TOC__</div> | ||
== Description == | == Description == | ||
| − | + | The recovery procedure consists of following steps: | |
| − | * Loading bootloader binary over USB using | + | * Loading bootloader binary over USB using Mfgtool feature |
* Flashing new bootloader over Ethernet using TFTP | * Flashing new bootloader over Ethernet using TFTP | ||
* Erasing bootloader environment | * Erasing bootloader environment | ||
| − | * | + | * Resetting SBC |
| − | * Creating a new SD card containing filesystem ( | + | * Creating a new SD card containing filesystem |
| + | <br /> | ||
| + | Requirements: | ||
| + | * [http://downloads.voipac.com/files/iMX6_OpenRex_SBC/tools/mfgtools-Imx6Rex.zip Mfg_tool] | ||
| + | * Serial adapter with terminal application | ||
| + | * TFTP server | ||
| + | * DHCP server (optional) | ||
| + | <br /> | ||
| + | This procedure is intended to be used to erase bootloader environment or to load the default environment. | ||
| − | == | + | == Updating bootloader == |
| − | === | + | === Using Mfgtool === |
| − | + | If the board is unable to boot (e.g. when bootloader was deleted or not transferred successfully), [[iMX6 OpenRex USB Booting|USB Booting]] option should be used to load the image file. | |
| + | |||
| + | === From TFTP server === | ||
| + | Download the U-Boot image (on computer acting as TFTP server): | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
cd /srv/tftp/imx6/ | cd /srv/tftp/imx6/ | ||
| Line 20: | Line 31: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | + | Update the bootloader in U-Boot: | |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
setenv ipaddr 192.168.0.150 | setenv ipaddr 192.168.0.150 | ||
| Line 29: | Line 40: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | === | + | === From SD card === |
==== Creating SD card in Linux ==== | ==== Creating SD card in Linux ==== | ||
Create VFAT partition: | Create VFAT partition: | ||
| Line 41: | Line 52: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | + | Check if device was correctly mounted and copy bootloader into it: | |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
cd /media/user/61B3-D9BF | cd /media/user/61B3-D9BF | ||
| Line 47: | Line 58: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | + | Update the bootloader in U-Boot: | |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
mw.b 0x10800000 0xFF 0x80000; | mw.b 0x10800000 0xFF 0x80000; | ||
| Line 54: | Line 65: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | == Erasing bootloader environment | + | == Erasing bootloader environment == |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
OpenRex U-Boot > env default -f -a | OpenRex U-Boot > env default -f -a | ||
| Line 65: | Line 76: | ||
== Creating bootable SD card == | == Creating bootable SD card == | ||
| − | + | If a fresh SD card containing filesystem is needed, follow [[iMX6 OpenRex Ultra Creating Bootable microSD Card|these steps]] to prepare the device. | |
Latest revision as of 11:13, 24 April 2022
Description
The recovery procedure consists of following steps:
- Loading bootloader binary over USB using Mfgtool feature
- Flashing new bootloader over Ethernet using TFTP
- Erasing bootloader environment
- Resetting SBC
- Creating a new SD card containing filesystem
Requirements:
- Mfg_tool
- Serial adapter with terminal application
- TFTP server
- DHCP server (optional)
This procedure is intended to be used to erase bootloader environment or to load the default environment.
Updating bootloader
Using Mfgtool
If the board is unable to boot (e.g. when bootloader was deleted or not transferred successfully), USB Booting option should be used to load the image file.
From TFTP server
Download the U-Boot image (on computer acting as TFTP server):
cd /srv/tftp/imx6/ wget http://downloads.voipac.com/files/iMX6_OpenRex_SBC/software/uboot/binaries/u-boot-imx6-openrexultra-2.4.imx
Update the bootloader in U-Boot:
setenv ipaddr 192.168.0.150 setenv serverip 192.168.0.1 mw.b 0x10800000 0xFF 0x80000;if tftp 0x10800000 imx6/u-boot-imx6-openrexultra-2.4.imx; then if sf probe 2:2; then sf erase 0x0 0x80000;sf write 0x10800000 0x400 0x7fc00; fi; fi reset
From SD card
Creating SD card in Linux
Create VFAT partition:
sudo fdisk /dev/sdX
Unplug/plug SD card and format the partition afterwards:
sudo mkfs.vfat /dev/sdX1
Check if device was correctly mounted and copy bootloader into it:
cd /media/user/61B3-D9BF wget http://downloads.voipac.com/files/iMX6_OpenRex_SBC/software/uboot/binaries/u-boot-imx6-openrexultra-2.4.imx
Update the bootloader in U-Boot:
mw.b 0x10800000 0xFF 0x80000; if fatload mmc 0:1 0x10800000 u-boot-imx6-openrexultra-2.4.imx; then if sf probe 2:2; then sf erase 0x0 0x80000;sf write 0x10800000 0x400 0x7fc00; fi; fi reset
Erasing bootloader environment
OpenRex U-Boot > env default -f -a ## Resetting to default environment OpenRex U-Boot > saveenv Saving Environment to SPI Flash... SF: Detected SST26VF032B with page size 256 Bytes, erase size 4 KiB, total 4 MiB Erasing SPI flash...Writing to SPI flash...done
Creating bootable SD card
If a fresh SD card containing filesystem is needed, follow these steps to prepare the device.