Create an image for the librem 5
We have had a go at booting a generic image on the librem 5 yesterday, without success. So one needs to be a little more familiar with how the boot process works and write a specific image for it.
So some notes about librem 5
- it uses u-boot as a bootloader
- it uses a tool called uuu to flash things / boot from usb. Not unlike fastboot, but specific to NXP.
- there is a tool called jumpdrive, that can be launched using uuu and allow flashing the internal eMMC as if it was a usb drive plugged into the computer. (https://github.com/dreemurrs-embedded/Jumpdrive/releases/tag/0.8)
- it loads u-boot from the eMMC, so we need to have an image with u-boot baked in.
/cc @jsparber @lwildberg