netdev - Re: [RFC PATCH 1/2] macb: Add 1588 support in Cadence GEM.

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Message-ID: <20160908074444.GA3341@netboy>
Date:   Thu, 8 Sep 2016 09:44:44 +0200
From:   Richard Cochran <richardcochran@...il.com>
To:     Harini Katakam <harinikatakamlinux@...il.com>
Cc:     Andrei Pistirica <andrei.pistirica@...rochip.com>,
        netdev@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>, davem@...emloft.net,
        Nicolas Ferre <nicolas.ferre@...el.com>,
        Harini Katakam <harini.katakam@...inx.com>,
        Punnaiah Choudary Kalluri <punnaia@...inx.com>,
        "michals@...inx.com" <michals@...inx.com>,
        Anirudha Sarangi <anirudh@...inx.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        alexandre.belloni@...e-electrons.com, tbultel@...elsurmer.com
Subject: Re: [RFC PATCH 1/2] macb: Add 1588 support in Cadence GEM.

On Thu, Sep 08, 2016 at 10:22:43AM +0530, Harini Katakam wrote:
> I cant be sure of the version of Cadence GEM used in SAMA5D2
> but these registers (sub ns increments alteast) only exist in
> the IP version used in Zynq Ultrascale+ MPSoC.

Then you need to find a way to make sure the driver only binds to the
correct silicon.

Thanks,
Richard