On Mon, Sep 11, 2017 at 09:59:03AM -0500, Mike Lynch wrote:
>
> phc2sys -a -r
>
>
> The issue I'm experiencing is that when both of the PTP ports are in modes
> (both are in PTP state MASTER) that disqualifies them as the "master" in
> phc2sys, the system clock is not synchronized to whichever PHC device
> phc2sys chooses as the "master" PHC device under these conditions.
So, when all of the ports of a system are in the MASTER state, then
the system is the Grand Master (GM).
Normally, a GM has some global time reference like GPS, but if you
don't have that, then you can tell phc2sys to use the GM's
CLOCK_REALTIME in that case.
phc2sys -a -r -r
With two -r flags, the PHC's will be synchronized to the local Linux
system clock. That is not exactly what you asked for, but maybe that
will work for you?
Thanks,
Richard
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