Re: [PATCH net-next v2 5/7] net: phy: marvell10g: Force reading of 2.5/5G
From: Andrew Lunn
Date: Sat Feb 23 2019 - 10:40:56 EST
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
> 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@xxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>