On Thu, Dec 5, 2013 at 2:16 PM, Paul Menzel <paulepanter@users.sourceforge.net> wrote:

Dear Aaron,

thanks a lot for your quick and interesting reply!

Am Mittwoch, den 04.12.2013, 17:49 -0600 schrieb Aaron Durbin:
> On Wed, Dec 4, 2013 at 4:25 PM, Paul Menzel wrote:

> > developers at Google started upstreaming their patches for their new
> > devices. For example the boards Falco, Peppy, Pit and Slippy are now in
> > the coreboot repository. Big thanks for that.
>
> Slippy is a reference board that can't be bought.
> Peppy is the Acer C720
> Falco is the HP Chromebook 14.
>
> Those 3 are all haswell.

So what are Pit and Bolt? Can those be bought?

Pit is yet-to-be-released and uses the Samsung Exynos5420 octa-core (big.LITTLE) SoC.

I should note that although coreboot works quite well on this platform, the product itself will ship with u-boot.

> If you have questions about anything in particular can provide more
> insight.

I’d be very much interested in timing data and comparison to older
systems.

About 210ms for coreboot alone, another 330ms for the whole verified boot stuff (~540ms total). This is slightly misleading since there is a small binary blob (which is in the blobs repo) that is run before coreboot. We can only use a timer which is initialized in coreboot's bootblock on this SoC, so counting begins a few microseconds after coreboot begins.

--
David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.