From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grygorii Strashko Subject: Re: [PATCH 4/6] net: ethernet: ti: cpts: add ptp pps support Date: Tue, 6 Dec 2016 14:43:49 -0600 Message-ID: References: <20161128230428.6872-1-grygorii.strashko@ti.com> <20161128230428.6872-5-grygorii.strashko@ti.com> <20161130100519.GD28680@localhost.localdomain> <20161206180857.GA20680@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20161206180857.GA20680@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org To: Richard Cochran Cc: "David S. Miller" , netdev@vger.kernel.org, Mugunthan V N , Sekhar Nori , linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, Rob Herring , devicetree@vger.kernel.org, Murali Karicheri , Wingman Kwok List-Id: devicetree@vger.kernel.org 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