Messages in this thread | | | Date | Tue, 23 Mar 2021 05:51:34 -0700 | From | Richard Cochran <> | Subject | Re: GTE - The hardware timestamping engine |
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On Tue, Mar 23, 2021 at 10:03:18AM +0100, Thierry Reding wrote: > I agree. My understanding is the the TSC is basically an SoC-wide clock > that can be (and is) used by several hardware blocks. There's an > interface for software to read out the value, but it's part of a block > called TKE (time-keeping engine, if I recall correctly) that implements > various clock sources and watchdog functionality.
...
> Anyway, I think given that the GTE doesn't provide that clock itself but > rather just a means of taking a snapshot of that clock and stamping > certain events with that, it makes more sense to provide that clock from > the TKE driver.
It sounds like TKE + GTE together act like a PHC, and GTE doesn't need/want its own SW interface.
Thanks, Richard
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