[coreboot] Timings v2

Peter Stuge peter at stuge.se
Tue Apr 21 14:32:41 CEST 2009

Kevin O'Connor wrote:
> > I think you're as close as you will get without multibyte
> > Firmware Memory Read:
> Thanks Peter.
> I don't think my epia-cn has FWH.

You're right. EPIA-CN uses LPC flash.

> With FWH, will a cache-line fill result in a 128byte flash read,
> or does one have to implement special instructions to make use of
> it?

That would be at the discretion of the LPC bus master, ie. the

I speculate that no southbridge actually does this.

> As a side note, things will also improve a little with lzma
> compression of the roms.

Yep, that's a good point.


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