John Marino added tuning support within GCC 4.4 for the Geode CPU. Waaaay back when, these were x86 -compatible Cyrix chips. Nowadays I think they are most common in single–board computers.
A running description of activity related to DragonFly BSD.
The geode chips are made by AMD (or were). Some of the newest models contain Wes acceleration as well. See http://WWW.pcengines.ch for systems using these chips. BTW they are great!