If you are still interested try this commit:
https://review.coreboot.org/#/c/14989/
It should work. The instructions on the wiki are not needed now, just make the payload.
On 27/05/16 08:48, David Griffith wrote:
Has anyone here been able to produce a Coreboot image that contains tint? It won't compile without a lot of tinkering and uses a really old version.