Yes, I know how to compile images. I'm still learning how to use git efficiently, though.
Git bisect, I had never heard of before; but from what I read, is seems to be the right tool to find the breaking commit. But before I start into this possibly lengthy process, I came up with one theory, that I intend to check first:
The initial assumption was, that the error is due to an API incompatibility in the Arm Trusted Firmware. My first intention was, to check if a newer version of the ATF was available, I just didn't know for wich part exactly I should look.
Now I found out, that the working Image starts the "BL31"-thing right at the point where the current images fail:
So, the first thing for me to check will be which version of "BL31" is used for the current images and if a newer version would be available and could be used instead.
Unfortunately, i might not be able to work on this until next week. But I will report back as soon as there is new information.,