Hi Emilian,

I chatted today with Holger from reproducible.debian.net and couldn't resist doing reproducible builds ;).
These patches need additonal work, but they are working when the git tree is clean.
You can test coreboot reproducible when building without payload. Or a more advanced way integrate my seabios git-tree
into coreboot's payload target.

coreboot needs 2 patches (one is very dirty ;) to build reproducible.
http://review.coreboot.org/#/c/8611/
http://review.coreboot.org/#/c/8612/

SeaBIOS requires one patch.
https://github.com/lynxis/seabios/commit/487ef74fc6cb1b1020fb25c9bb3f166602ca926c

Best,
lynxis