From: Grygorii Strashko <grygorii.strashko@ti.com>
To: Richard Cochran <richardcochran@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>, <netdev@vger.kernel.org>,
Mugunthan V N <mugunthanvnm@ti.com>, Sekhar Nori <nsekhar@ti.com>,
<linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
Rob Herring <robh+dt@kernel.org>, <devicetree@vger.kernel.org>,
Murali Karicheri <m-karicheri2@ti.com>,
Wingman Kwok <w-kwok2@ti.com>
Subject: Re: [PATCH 4/6] net: ethernet: ti: cpts: add ptp pps support
Date: Tue, 6 Dec 2016 14:43:49 -0600 [thread overview]
Message-ID: <e67cfba3-7e57-cc1d-6654-00c0a5378382@ti.com> (raw)
In-Reply-To: <20161206180857.GA20680@localhost.localdomain>
On 12/06/2016 12:08 PM, Richard Cochran wrote:
> On Wed, Nov 30, 2016 at 11:05:19AM +0100, Richard Cochran wrote:
>> 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
next prev parent reply other threads:[~2016-12-06 22:34 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-28 23:04 [PATCH 0/6] net: ethernet: ti: cpts: update and enable support on keystone 2 socs Grygorii Strashko
2016-11-28 23:04 ` [PATCH 1/6] net: ethernet: ti: netcp: add support of cpts Grygorii Strashko
2016-11-30 9:44 ` Richard Cochran
2016-11-30 17:31 ` Grygorii Strashko
2016-11-30 18:22 ` Richard Cochran
2016-12-05 14:49 ` Rob Herring
2016-12-05 18:25 ` Grygorii Strashko
2016-12-05 19:30 ` Richard Cochran
2016-11-28 23:04 ` [PATCH 2/6] net: ethernet: ti: cpts: add support for ext rftclk selection Grygorii Strashko
2016-11-30 9:56 ` Richard Cochran
2016-11-30 17:35 ` Grygorii Strashko
2016-12-06 19:39 ` Grygorii Strashko
2016-12-06 20:25 ` Richard Cochran
2016-12-06 20:40 ` Grygorii Strashko
2016-12-09 0:47 ` Stephen Boyd
2016-12-09 23:29 ` Grygorii Strashko
2016-12-05 14:51 ` Rob Herring
2016-11-28 23:04 ` [PATCH 3/6] net: ethernet: ti: cpts: add support of cpts HW_TS_PUSH Grygorii Strashko
2016-11-30 10:19 ` Richard Cochran
2016-11-30 11:08 ` Jan Lübbe
2016-11-30 20:15 ` Grygorii Strashko
2016-12-03 23:21 ` Richard Cochran
2016-12-08 19:04 ` Grygorii Strashko
2016-12-09 8:50 ` Richard Cochran
2016-11-28 23:04 ` [PATCH 4/6] net: ethernet: ti: cpts: add ptp pps support Grygorii Strashko
2016-11-30 10:05 ` Richard Cochran
2016-12-06 18:08 ` Richard Cochran
2016-12-06 20:43 ` Grygorii Strashko [this message]
2016-11-30 11:01 ` Jan Lübbe
2016-11-30 18:45 ` Richard Cochran
2016-11-30 20:43 ` Grygorii Strashko
2016-11-30 22:17 ` Richard Cochran
2016-12-02 9:58 ` Richard Cochran
2016-12-02 17:58 ` Grygorii Strashko
2016-12-02 19:28 ` Richard Cochran
2016-11-28 23:04 ` [PATCH 5/6] ARM: keystone: dts: fix netcp clocks and add names Grygorii Strashko
2016-11-28 23:04 ` [PATCH 6/6] ARM: dts: keystone: enable time synchronization (cpts) submodule Grygorii Strashko
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