i.MX8MM U-Boot Upgrade v2022.10 including Cleanups and SWUpdate Improvements
This MR provides a new U-Boot version for Kontron i.MX8MM boards. See sw/misc/u-boot!20 (merged) for details about this version.
- Cleanup: Remove unused recipe and patch files
- Instead of a separate U-Boot Environment, use
u-boot-initial-envin Userspace (for SWUpdate/libubootenv) - Overwrite the board's environment text file in the U-Boot source tree to add vendor-specific boot scripts for A/B boot
- The provided environment contains scripts from the U-Boot standard distro boot and vendor-specific scripts prefixed with
vendor_ - To use standard distro boot flow (extlinux, UEFI, etc.) do
setenv bootcmd distro_bootcmd - To use vendor boot flow (SWUpdate) do
setenv bootcmd vendor_bootcmd
- The provided environment contains scripts from the U-Boot standard distro boot and vendor-specific scripts prefixed with
- Instead of handling SPL and U-Boot proper separately, use the combined
flash.binfile created by U-Boot (binman)- This is actually how flash.bin was originally intended to be used, in our v2020.01 configuration
flash.binwrongly contained only SPL - This also affects the SPI NOR MTD partitions which have already been adjusted in the kernel
- This is actually how flash.bin was originally intended to be used, in our v2020.01 configuration
- Add a recipe for v2022.10 and switch all KTN i.MX8MM boards to use it as default
Edited by Frieder Schrempf