netdev - Re: [PATCH 1/2] net: dsa: allow XAUI phy interface mode

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Date:   Tue, 12 Dec 2017 12:44:25 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Russell King <rmk+kernel@...linux.org.uk>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>, netdev@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Stefan Agner <stefan@...er.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: Re: [PATCH 1/2] net: dsa: allow XAUI phy interface mode

On Tue, Dec 12, 2017 at 09:29:46AM +0000, Russell King wrote:
> XGMII is a 32-bit bus plus two clock signals per direction.  XAUI is
> four serial lanes per direction.  The 88e6190 supports XAUI but not
> XGMII as it doesn't have enough pins.  The same is true of 88e6176.
> 
> Match on PHY_INTERFACE_MODE_XAUI for the XAUI port type, but keep
> accepting XGMII for backwards compatibility.
> 
> Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew