TS-4100 Update U-Boot

From embeddedTS Manuals
WARNING: Installing a custom U-Boot is not recommended and may cause the device to fail to boot.

The TS-4100 uses slightly different U-Boot binaries for the 512 MB and 1 GB RAM variants. This is due to different DDR timing that needs to be set up at the start of U-Boot. When updating U-Boot, be sure to use the script that exists in U-Boot discussed below as it will use the correct file name and will reduce any potential issues

The latest U-Boot binary can be downloaded from the TS-4100 FTP site. Copy these files to /boot/ on the 1st partition of the SD card (or eMMC). The U-Boot binary can be updated by inserting that SD card in to the TS-4100, setting the jumpers to boot from SD, power up the unit, and enter the U-Boot shell. At the U-Boot prompt, the following command can be used: 

run update-uboot

The above script will use the /boot/u-boot-${imx_type}.imx file from the SD card or eMMC, depending on the state of the SD Boot jumper.

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