cpufreq (was: My Gta02s wont charge / chgena = 0 by default)

Michael 'Mickey' Lauer mickey at openmoko.org
Tue Jun 24 15:05:50 CEST 2008

Am Dienstag 24 Juni 2008 14:53:56 schrieb Werner Almesberger:
> Andy Green wrote:
> > We could crank up the clock later I suppose, keeping the backlight, LCM
> > and Glamo all down if they're up at this time.  The Glamo has 80MHz PLL
> > and its own DRAM so I don't think it's that cheap to run.
> Just leaving the CPU at 200MHz (instead of cranking it up to 400MHz in
> board_init) saves 30mA, turning off the LDOs another 40mA. Almost there,
> without even trying hard :-)

Cool. This brings me back to asking why we did abandon or ignore cesars work 
towards cpufreq. Andy you said something about UARTS being endangered during 
clock switch?


More information about the openmoko-kernel mailing list