[coreboot] Boot flow flexibility changes

Aaron Durbin adurbin at chromium.org
Fri Apr 26 02:49:25 CEST 2013


On Thu, Apr 25, 2013 at 6:00 PM, ron minnich <rminnich at gmail.com> wrote:
> Am I doing the math right ...
>
> a 32-bit microsecond timer is about 20 minutes. If we ever take more
> than 20 seconds we need a new job.
>
> That was my logic.
>

You are doing your math correctly. However, not all platforms may have
this perfect 1MHz clock. That means the microsecond resolution clock
needs to be derived off of a faster ticking hardware clock. That's
where we need to be more careful about polling intervals against the
hardware source clock. Anyway, it's not impossible; tick rates just
need to be worked out.

-Aaron



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