> -----Original Message-----
> From: Richard Cochran [mailto:richardcoch...@gmail.com]
> Sent: Wednesday, May 22, 2019 7:03 PM
> To: Sanjay Bhandari <san...@ziffusion.com>
> Cc: linuxptp-users@lists.sourceforge.net
> Subject: Re: [Linuxptp-users] question on "-a" option in phc2sys (and
> boundary clock
> etc.)
>
> On Wed, May 22, 2019 at 04:01:18PM -0400, Sanjay Bhandari wrote:
> > My question is about the scenario where they do share the same hardware
> > clock (as described in the manual).
>
> The only HW I know is the Freescale (nxp) ETSEC with three ports, all
> sharing one clock.
>
> Maybe there are other such devices, but I haven't seen them or even
> heard of them.
>
> Thanks,
> Richard
>
Several of the Intel cards share the same clock source internally, but there's
no way to keep all the registers in sync, so they have to be treated as just a
bunch of clocks.
Thanks,
Jake
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