Re: [coreboot] tiny bootblock problem

[Peter Stuge]

Nils wrote:
> > > Is that a caching problem introduced by tiny bootblock?
> > > What is needed to get it right?
> >
> > Probably MTRRs. With tinybootblock, these are set at slightly
> > different times.
> > GX2 uses Cache-As-RAM, right? That affects MTRRs, too (as CAR is a 
> > "special" MTRR setup)
>
> Correct me if i'm wrong but Geode GX2/LX doesn't have MTRRs.
> Cache is setup via MSR registers.
> So all that MTRR stuf in tiny bootblok/coreboot is useless to Geode.
> Which regions are used for tiny bootblock that need caching?

The flash chip, most importantly.

//Peter