[coreboot] unstable AMD Fam10h boot

Rudolf Marek r.marek at assembler.cz
Fri Sep 4 19:07:54 CEST 2009

> Isn't there a way to do MMCONF cycles from the NB?

No, I think only newer fam10h cpus can do that.


So, the K8 internal devices are not accessible with the mmconf aperture which is 
NB dependent anyway. That post says that it may work for newer fam10h cpus. I 
think this is related: F1x[EC:E0] Configuration Map Registers and
DisCohLdtCfg: disable coherent link configuration accesses.

I think linux has some test which test what devices can be accessed through 
type1 and what it sees on mmconf.


I think the only proper way is to do type1 and maybe some locking is necessary.

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