VAR-SOM-MX6 Yocto NAND Recovery V60plus: Difference between revisions

Revision as of 09:01, 23 June 2016

Variscite provides a recovery SD card image that can be used to install the pre-built U-Boot, Linux kernel and the UBI file system into the NAND-Flash This SD card image includes a script (nand-recovery.sh) that installs all the boot images and root file-system.

Preparing a rescue SD card

Download mx6-som-nand-recovery-sd.vXX.img.gz (latest) which is available on Variscite's FTP: ftp://customerv:Variscite1@ftp.variscite.com/VAR-SOM-MX6/Software/
Plug-in the SD card to your Linux HOST PC, run dmesg and see which device is added (i.e. /dev/sdX or /dev/mmcblkX)

$ gunzip mx6-som-nand-recovery-sd.XX.img.gz
$ sudo dd if=mx6-som-nand-recovery-sd.vXX.img of=/dev/sdX bs=128k

(Replace /dev/sdX with your actual device)

Recover NAND Flash

Power-off the board.
Insert the SD card into the SD/MMC slot of the carrier board (DVK)
Press and hold the boot-select button, and power-on the board while button is pressed
The board will automatically boot into Linux from SD card

Flash from GUI

Click on the right arrowhead on the upper right corner to change the desktop into Utilities.

Click the appropriate button:

Yocto Jethro SOLOCB NAND: Flash Yocto on NAND-Flash, on VAR-SOLOCUSTOMBOARD
Yocto Jethro SOLOCB eMMC: Flash Yocto on eMMC, on VAR-SOLOCUSTOMBOARD
Yocto Jethro MX6CB Res NAND: Flash Yocto Resistive touch panel on NAND-Flash, on VAR-MX66CUSTOMBOARD
Yocto Jethro MX6CB CAP NAND: Flash Yocto Capacitive touche panel on NAND-Flash, on VAR-MX66CUSTOMBOARD
Yocto Jethro MX6CB Res eMMC: Flash Yocto Resistive touch panel on eMMC, on VAR-MX66CUSTOMBOARD
Yocto Jethro MX6CB CAP eMMC: Flash Yocto Capacitive touche panel on eMMC, on VAR-MX66CUSTOMBOARD
Yocto Jethro DART eMMC: Flash Yocto on eMMC, on DART-BOARD
Android SOLOCB eMMC: Flash Yocto on eMMC, on VAR-SOLOCUSTOMBOARD
Android MX6CB CAP: Flash Yocto on eMMC, on VAR-MX66CUSTOMBOARD
Android DART: Flash Yocto on eMMC, on DART-BOARD

Flash from command line

Login as root (no password)
From Linux command line, type one of flash options

$ install_android.sh 	- Flash Android into eMMC (Follow instructions)
$ install_yocto.sh	- Flash Yocto into eMMC or NAND Flash (Follow instructions)

SD card image file tree

/opt/images/
├── Android
│       ├── SPL
│       ├── SPL.mmc
│       ├── boot-imx6q-var-dart.img
│       ├── boot-som-mx6dl-c.img
│       ├── boot-som-mx6dl-r.img
│       ├── boot-som-mx6q-c.img
│       ├── boot-som-mx6q-r.img
│       ├── boot-som-mx6q-vsc.img
│       ├── boot-som-solo-c.img
│       ├── boot-som-solo-r.img
│       ├── boot-som-solo-vsc.img
│       ├── boot.img
│       ├── recovery-imx6q-var-dart.img
│       ├── recovery-som-mx6dl-c.img
│       ├── recovery-som-mx6dl-r.img
│       ├── recovery-som-mx6q-c.img
│       ├── recovery-som-mx6q-r.img
│       ├── recovery-som-mx6q-vsc.img
│       ├── recovery-som-solo-c.img
│       ├── recovery-som-solo-r.img
│       ├── recovery-som-solo-vsc.img
│       ├── recovery.img
│       ├── system.img
│       ├── u-boot-var-imx6-nand.img
│       └── u-boot-var-imx6-sd.img
└── Yocto
    ├── SPL
    ├── SPL.mmc
    ├── rootfs.tar.bz2
    ├── rootfs.ubi.img
    ├── u-boot.img
    ├── u-boot.img.mmc
    ├── uImage
    ├── uImage-imx6dl-var-som-solo-vsc.dtb
    ├── uImage-imx6dl-var-som-solo.dtb
    ├── uImage-imx6dl-var-som.dtb
    ├── uImage-imx6q-var-dart.dtb
    ├── uImage-imx6q-var-som-vsc.dtb
    └── uImage-imx6q-var-som.dtb

@@ Line 19: / Line 19: @@
 *The board will automatically boot into Linux from SD card
 === Flash from GUI ===
-[[File:Applications_Fido_10_1.png]]
+[[File:Applications_Jethro.png]]
 *Click on the right arrowhead on the upper right corner to change the desktop into Utilities.
-[[File:Utilities_Fido_10_1.png]]
+[[File:Utilities_Jethro.png]]
 <br><br>
 Click the appropriate button: