Re: [Linuxptp-users] Adding LinuxPTP to Arria 10 SoC

[John L. <joh...@fo...>]

Richard,

That's what I was afraid of.  It seemed as though SW timestamping was
working,  but then I had a problem with my rootfs in my Linux build, and I
didn't go back to try it again.  

The Altera TSE MAC is listed as supported (whereas the ARM EMAC is not,
specifically), would you suspect I would have more luck with that?  It's
only listed as supporting software timestamping - not PHC.  

Thank you,

John

-----Original Message-----
From: Richard Cochran [mailto:ric...@gm...] 
Sent: Thursday, May 18, 2017 8:27 AM
To: John Lemonovich <joh...@fo...>
Cc: lin...@li...
Subject: Re: [Linuxptp-users] Adding LinuxPTP to Arria 10 SoC

On Wed, May 17, 2017 at 02:29:09PM -0500, John Lemonovich wrote:
> Now I am trying with the -H option for PHC to achieve better timing 
> (hopefully).  Should it work for the EMAC with the 4.1.22-ltsi-altera 
> kernel?

IIRC, last time I looked, the altera HW and drivers are hopelessly broken.
Ditto for the similar xilinx parts.

Neither have drivers in mainline Linux, IIRC.

Thanks,
Richard