I have a slightly different question related to automated install on a VIM3 using PXE boot. There are manual steps required before the board can PXE boot an image.
Step 1. Upgrade uboot to mainline uboot
Step 2. Set boot mode to SPI flash
Step 3. Setup uboot parameters and write them to SPI flash.
These steps are performed using a serial debugging tool connected to the GPIO pins on the VIM3. In my case I am using a bus pirate in transparent uart bridge mode. My goal is to scale the install across hundreds of boards. Is there a method for installing mainline uboot, configuring uboot parameters, and writing to SPI flash with Krescue KBI or with a script in the Krescue shell terminal?