Embedded module TQMT10xx - YOCTO Linux BSP documentation

To update U-Boot or RCW in a running system you have to copy the images in your tftp directory and upload them to the NOR flash.

Please see How to setup TFTP Server

1. Boot from NOR flash and stop autoboot in U-Boot

Hit any key to stop autoboot:  0
=>

3. Connect device via ethernet to a tftp server supplying the image

4. Prepare network interface:

Set network settings manually

Set network settings using DHCP

5. Provide U-Boot the file name of the desired image on the tftp server:

• For U-Boot update: ⇒ setenv uboot <filename>
  
• For RCW update: ⇒ setenv fdt_file <filename>
  

6. Perform Update:

• U-Boot update: ⇒ run upd_uboot
  
• RCW update: ⇒ run upd_rcw