Hi,
Seems that I messed up the conversion of the coreboot_apc stuff over to kconfig. Short version: It doesn't build, and we never noticed.
It affects amd/serengeti_cheetah and supermicro/h8dme, the other two APC boards in newconfig lost that flag on transition (amd/serengeti_cheetah_fam10 and iwill/dk8_htx), where amd/s_c_fam10 doesn't really support that mode anyway.
So there are at most three boards that require this feature (which seems to be about distributing ram training across the CPUs). I'm not sure how much time is saved by that (it doesn't do RAM clearing for ECC in the AP-local code, as far as I can see!), and it would be a rather large special mode in the build system for three boards (though that could probably be expanded to 'all K8 boards')
Where to go from here, shall we fix it, or drop it?
Patrick