[Query] CPUFreq: Does these machines have separate clock domains for CPUs?

Sekhar Nori nsekhar at ti.com
Thu Aug 29 06:27:44 EDT 2013


On Thursday 29 August 2013 04:00 PM, Viresh Kumar wrote:
> On 29 August 2013 15:53, Sekhar Nori <nsekhar at ti.com> wrote:
>> On DaVinci (DA850), there is an async domain available to keep some
>> peripheral clocks insulated from cpu frequency changes. But there are a
>> bunch of other clocks which do get affected by CPU frequency change
>> (they need to run at a fixed ratio to CPU frequency).
> 
> My question wasn't about how peripherals are getting clocks.. but how
> CPUs are getting them..
> 
> Does all CPUs share clock line in Davinci? i.e. if we change freq of one
> cpu then freq of other one also gets changed?
> 
> Or they are capable of running at different frequencies?

I get it now. All DaVinci devices are UP only.

Thanks,
Sekhar



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