Hi, You can use Bolton datasheets, should be same/similar. http://support.amd.com/TechDocs/51192_Bolton_FCH_RRG.pdf
The said register access is forcing to use overriden EFUSE values, so I would say you have to check how their are programmed. Maybe you are trying to enable the EC without EC firmware? Or perhaps the chip does not like the override efuses.
I guess you should also use have a look to AGESA fam15h code as it has Proc/Fch directory for Hudson, no idea why you are trying to use old cimx code? (perhaps to avoid AGESA?)
Thanks Rudolf -- coreboot mailing list: [email protected] https://www.coreboot.org/mailman/listinfo/coreboot
