From: Tuomas K. <tu...@ku...> - 2010-04-05 14:43:25
|
Steve Sakoman wrote: > On Sat, Apr 3, 2010 at 5:09 AM, Tuomas Kulve <tu...@ku...> wrote: >> That's about 2 watts which sounds a bit high to me. Does somebody have >> more detailed information about the power consumption of different >> hardware components? > > I have a Fire/Tobi setup and see around .5A when running the processor > at 600 Mhz with wifi and ethernet active. So that is pretty > consistent with what you are seeing. > > (to change the processor clock rate you can set the u-boot mpurate > environment variable, i.e. setenv mpurate 600) Based on this, it looks like there's no CPUfreq support elsewhere but in the pm tree: http://elinux.org/OMAP_Power_Management#What.27s_left_in_PM_branch I tried to compile the pm tree but the default config for Overo didn't boot and the other configs I tried didn't seem to enable the CPUfreq. Overo should be supported: http://elinux.org/OMAP_Power_Management#Supported_platforms_.28OMAP3_only.29 There is e.g. CPUidle but I don't know how that affects the power consumption or how to configure it. -- Tuomas |