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Turn Off DSP to Save Power

Samuel Rasmussen
Prodigy 10 points

How do you turn off the DSP on the OMAP 3530 or 3730?  I need to reduce my device's power consumption.  Also, I was wondering if it's possible to turn off the DSP from the ARM side.  I'm currently using the ARM processor to run Linux, but I haven't started using the DSP yet.

Any suggestions for turning off the DSP would be appreciated,

Samuel

  • 0
    TI__Guru* 86820 points

    The DSP should be in reset by default if you haven't started using it yet, so it should not be drawing much power.  You could additionally try to cut the power to the IVA2 domain.  More details can be found in the "PRCM Power Manager Functional Description" section, which describe how to perform power transition for each power domain.

    REgards,

    James