linux-kernel - Re: [PATCH v3 4/4] net: phy: marvell-88q2xxx: add driver for the Marvell 88Q2220 PHY

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Date: Thu, 21 Dec 2023 14:47:57 +0100
From: Stefan Eichenberger <eichest@...il.com>
To: Dimitri Fedrau <dima.fedrau@...il.com>
Cc: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/4] net: phy: marvell-88q2xxx: add driver for the
 Marvell 88Q2220 PHY

Hi Dimitri,

On Thu, Dec 21, 2023 at 08:28:51AM +0100, Dimitri Fedrau wrote:
> Add a driver for the Marvell 88Q2220. This driver allows to detect the
> link, switch between 100BASE-T1 and 1000BASE-T1 and switch between
> master and slave mode and autonegotiation.
> 
> Signed-off-by: Dimitri Fedrau <dima.fedrau@...il.com>

I tried to make your patch work in my setup but I'm unable to force a
link speed. Were you able to force a different link speed with the
following command?
ethtool -s eth0 speed 100 autoneg off

Regards,
Stefan