The length of the wire is actually more an issue of capacitance and interferences. But these issues are easily mitigated by reducing the spi speed

This has some “yes do as I say” vibes

I don’t know what’s stupid to say about Gesellschaft für Software und Systementwicklung mit beschränkter Haftung

Hmm, I’m not sure… I must admit, I only use SeaBIOS, not GRUB, so I wouldn’t know how to configure it

Yeah, that’s basically right. I believe flashprog is also included in libreboot, have a look in the elf/ directory. After that, it should work as expected

Oh you can still do that. The path changed to elf/cbfstool/[TREE]/cbfstool (replace [TREE] with the tree concerened). Note that since the switch to the libre RAM init code, mrc.bin is not included anymore

I’m not sure what you mean by “checking the ROM”…