> There is just the CPU and 690 or 780. The AMD 600 or 700 is connect > with Alink, not HT. You're right. I didn't look closely enough.
> > early_ht.c: Just enumerate the southbridge chain in case that's needed > for > > serial initialization or ROM access. > > > > incoherent_ht.c: Enumerate all chains so that they can be optimized > before > > the first reset. > > > > hypertransport.c: Enumerate the chains according to the device tree. > > Is early_ht.c, enumerate_ht_chain(), even needed. The subtractive path > should work. Maybe depends on the southbridge/configuration. For K8, early_ht.c doesn't even get compiled in if you set CONFIG_HT_CHAIN_UNITID_BASE to 0. It's needed for the case where there is a tunnel, then the southbridge. Serengeti Cheetah is a good example. You can't get to the southbridge until you've moved the 8131 or 8132 out of the way. > For Fam10, I think that where problems happen is the early_ht.c sets > values that are found and used by the AGESA based code that has a > slightly different search algorithm. This happens in ht3init.c, > process_link(). Failures in process_link() cause the system to halt > even if it could continue based on the early setup. I wish I knew more about Fam10, but I don't have a board, so I haven't been that motivated to look into it further. Thanks, Myles -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
