BBB CPU clock (was: Re: FreeBSD on Cubieboard 2, UDOO and Galaxy Note 10.1 (Exynos).

[Tim Kientzle]

On Sep 29, 2013, at 9:41 AM, Jia-Shiun Li <jiashiun at gmail.com> wrote:
> 
> According the the manual, the PMIC does not seems to do too much different
> between two power supply sources.
> Only that USB input has lower current limit, and AC is preferred when
> both are connected.

My understanding:

  * We should query the PMIC to determine whether we're running from 5V supply or USB.

   * Based on that, we should adjust the CPU clocks.  We should be able to run 1GHz from 5v supply.

Connecting cpufreq would be a nice addition.

Tim