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Date:   Sat, 23 Feb 2019 16:38:49 +0100
From:   Andrew Lunn <>
To:     Maxime Chevallier <>
        Florian Fainelli <>,
        Heiner Kallweit <>,
        Russell King <>,,
        Antoine Tenart <>,,,,,,
Subject: Re: [PATCH net-next v2 3/7] net: phy: marvell10g: Use 2500BASEX when
 using 2.5GBASET

On Sat, Feb 23, 2019 at 12:37:40AM +0100, Maxime Chevallier wrote:
> The Marvell Alaska family of PHYs supports 2.5GBaseT and 5GBaseT modes,
> as defined in the 802.3bz specification.
> Upon establishing a 2.5GBASET link, the PHY will reconfigure it's MII
> interface to 2500BASEX.
> At 5G, the PHY will reconfigure it's interface to 5GBASE-R, but this
> mode isn't supported by any MAC for now.
> This was tested with :
>  - The 88X3310, which is on the MacchiatoBin
>  - The 88E2010, an Alaska PHY that has no fiber interfaces, and is
>    limited to 5G maximum speed.
> Signed-off-by: Maxime Chevallier <>

Reviewed-by: Andrew Lunn <>


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