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Date:   Sat, 23 Feb 2019 16:40:51 +0100
From:   Andrew Lunn <andrew@lunn.ch>
To:     Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc:     davem@davemloft.net, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Florian Fainelli <f.fainelli@gmail.com>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        linux-arm-kernel@lists.infradead.org,
        Antoine Tenart <antoine.tenart@bootlin.com>,
        thomas.petazzoni@bootlin.com, gregory.clement@bootlin.com,
        miquel.raynal@bootlin.com, nadavh@marvell.com, stefanc@marvell.com,
        mw@semihalf.com
Subject: Re: [PATCH net-next v2 5/7] net: phy: marvell10g: Force reading of
 2.5/5G
Message-ID: <20190223154051.GJ10693@lunn.ch>
References: <20190222233744.25735-1-maxime.chevallier@bootlin.com>
 <20190222233744.25735-6-maxime.chevallier@bootlin.com>
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On Sat, Feb 23, 2019 at 12:37:42AM +0100, Maxime Chevallier wrote:
> As per 802.3bz, if bit 14 of (1.11) "PMA Extended Abilities" indicates
> whether or not we should read register (1.21) "2.52/5G PMA Extended
> Abilities", which contains information on the support of 2.5GBASET and
> 5GBASET.
> 
> After testing on several variants of PHYS of this family, it appears
> that bit 14 in (1.11) isn't always set when it should be.
> 
> PHYs 88X3310 (on MacchiatoBin) and 88E2010 do support 2.5G and 5GBASET,
> but don't have 1.11.14 set. Their register 1.21 is filled with the
> correct values, indicating 2.5G and 5G support.
> 
> PHYs 88E2110 do have their 1.11.14 bit set, as it should.
> 
> Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>

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

    Andrew