Hi,
Had a new request for the custom board that I'm working on bringing up. Need to use cpufreq to control the CPU clock frequency.
But I don't see an am335x specific driver. There is a generic ARM Big Little cpufreq driver but many functions appear to be stubbed out.
I've spent quite a bit of time searching for details but haven't been able to ferret out details yet. Looking in the forum, general online searches and the am335x documentation.
I've seen references to needing to control the voltage in order to change the frequency, and if that is a real requirement then the current spin of the HW doesn't provide a way for me to do that.
Is there a document that clearly explains what has to be done to change the CPU frequency from user space INCLUDING any required device drivers, hardware specific support on the board, etc.?
Thanks,
Burt
