2023–08–02:
Update on the Pinephone Pro U-Boot build
NotKamui in Pinephone chat room pointed out that my U-Boot doesn't start
correctly from SPI NOR flash.
I was a bit too aggressive configuring the SPI NOR frequency used by U-Boot
SPL for loading u-boot.itb, resulting in failures of U-Boot to show GUI on some
Pinephone Pro (because SPI access failed due to signal integrity issues).
If you have this issue (my U-Boot build for Pinephone Pro doesn't show GUI
when loaded from SPI), you can try the fixed build that's uploaded to my
server.
See: