netdev - Re: [PATCH 2/2] net: mdio: support c45 peripherals on c22 busses

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Message-ID: <YGcOBkr2V1onxWDt@lunn.ch>
Date:   Fri, 2 Apr 2021 14:28:54 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Danilo Krummrich <danilokrummrich@...develop.de>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        davem@...emloft.net, hkallweit1@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, jeremy.linton@....com
Subject: Re: [PATCH 2/2] net: mdio: support c45 peripherals on c22 busses

> > Do you actually have a requirement for this?
> >
> Yes, the Marvell 88Q2112 1000Base-T1 PHY. But actually, I just recognize that it
> should be possible to just register it with the compatible string
> "ethernet-phy-ieee802.3-c22" instead of "ethernet-phy-ieee802.3-c45", this
> should result in probing it as c22 PHY and doing indirect accesses through
> phy_*_mmd().

Hi Danilo

Do you plan to submit a driver for this?

Does this device have an ID in register 2 and 3 in C22 space?

     Andrew