The wiki is being retired!
Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to https://doc.coreboot.org/. Contributions welcome!
see http://review.coreboot.org/#/c/8714/ on gerrit, not yet merged in coreboot
flashing/disassembly guide http://libreboot.org/gitdocs/install/t400_external.html (this page is generic, it is not libreboot-specific. it can be used for coreboot as well)