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PROCESSOR-SDK-AM57X: Turning off unused cores

Part Number: PROCESSOR-SDK-AM57X


I am using TI SDK 3.02

Is there an easy way to turn off unused cores so that they don't consume power? 

I have disabled the following in the device tree:

&ipu2 {
status = "disable";
};

&ipu1 {
status = "disable";
};

dsp2 {
status = "disable";
/* memory-region = <&dsp2_cma_pool_2>; */
};

Is this adequate for these devices?  Or do I need to do more?    It seems I can do the same for the pruss cores too.

But I'm not sure how to disable the 2nd ARM core and the GPU cores.   Not sure if these can be done in the device tree or not.