[coreboot] coreboot_apc woes

[Patrick Georgi]

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