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Date:   Fri, 15 Feb 2019 17:23:44 +0000
From:   Stefan Chulski <>
To:     Russell King - ARM Linux admin <>,
        Antoine Tenart <>
CC:     "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        Nadav Haklai <>,
        Yan Markman <>,
        "" <>
Subject: RE: [PATCH net-next 10/13] net: mvpp2: reset the XPCS while
 reconfiguring the serdes lanes

> On Fri, Feb 15, 2019 at 04:32:38PM +0100, Antoine Tenart wrote:
> > The documentation advises to set the XPCS in reset while reconfiguring
> > the serdes lanes. This seems to be a good thing to do, but the PPv2
> > driver wasn't doing it. This patch fixes it.
> Hmm.  That statment seems to have some ambiguity in it - we do two
> "reconfigurations" - one may be upon initialisation, where the lane is already
> configured for 10Gbase-KR, and we're re-initialising it for the same mode.
> The other case is when we're switching between 10Gbase-KR and SGMII, or
> as will be the case with 2.5G support for the Alaska PHYs, 2500base-X.

Exist one mode that we should add to PPv2&COMPHY 5Gbase-KR(5GBASE-T).

Best Regards.

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