Re: [PATCH 4/6] net: ethernet: ti: cpts: add ptp pps support

From
Grygorii Strashko <grygorii.strashko@ti.com>
Date
2016-12-06 22:34:16
Also in
linux-devicetree, linux-omap, lkml
Reply to
Richard Cochran, 2016-12-06

On 12/06/2016 12:08 PM, Richard Cochran wrote:
On Wed, Nov 30, 2016 at 11:05:19AM +0100, Richard Cochran wrote:
quoted
Can you adjust the frequency of the keystone devices in hardware?  If
so, then please implement it, and just disable PPS for the CPSW.

The only reason I used the timecounter for frequency adjustment was
because the am335x HW is broken.  But this shouldn't hold back other
newer HW without the same silicon flaws.
I am talking here about the ADPLLLJ units.  Are they usable on the
keystone?

If so, please implement the frequency adjustment with them.
No, I think it's not impossible (at least as I know now).
i'll drop this patch for now.

By the way, I've tested am335 (BBB)+ HW_TS_PUSH + PWM.
Seems works.

-- 
regards,
-grygorii
Thread (37 messages) 37 messages, 5 authors, last reply 2016-12-09
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