It could be supported.
1. Ck804 support is in the tree. 2. athlon64 support is in the tree. But need to check to make it support 1 above dimms 3. Athlon64 FX support need to use fidvid to set correct FID, otherwise it will only run at low freq. ---- we need to provide enable_fid_change_on_sb for Ck804.
You can start from make a clone mb and target dir for it from tyan s2891...
YH