Re: [Linuxptp-users] Upgraded from Linuxptp2.0 on Yocto Sumo to Linuxptp2.0 on Dunfell and 1PPS isn't disciplined anymore

[Brian.Hutchinson--- via Linuxptp-users]

> -----Original Message-----
> From: Richard Cochran <richardcoch...@gmail.com>
> Sent: Friday, December 11, 2020 8:36 AM
> To: Hutchinson, Brian (US) <brian.hutchin...@l3harris.com>
> Cc: linuxptp-users@lists.sourceforge.net
> Subject: [EXTERNAL] Re: [Linuxptp-users] Upgraded from Linuxptp2.0 on
> The PPS from imx8 is, IIRC, automatically generated by the kernel device
> driver.

Ok, I'll focus on differences between the two kernels.  fec_ptp.c  it looks 
like.

> 
> > I've stared at kernel configs, device tree, and tried all kinds of
> > stuff and nothing appears to make a difference.  I'm stumped, got my
> > butt kicked, and looking for ideas on how to figure out what is going
> > on.  I see 3.1 is out.  I might try to cherry pick that just for kicks
> > to see if that makes a difference.
> 
> The linuxptp program is not involved at all.

Hmm, dumb question then, why did 1PPS from Sumo 4.14 kernel sync 1PPS out with 
GM then?  Appears there would have to be a connection with linuxptp to do that.
> 
> (don't worry, we bark but we don't bite ;)
> 

Thanks Richard.  That at least narrows my search a bit.

Regards,

Brian

  

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