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

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Message-ID: <YgLxYeRzruu3Ugr1@pollux>
Date:   Tue, 8 Feb 2022 23:52:44 +0100
From:   Danilo Krummrich <danilokrummrich@...develop.de>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Russell King - ARM Linux admin <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Heiner Kallweit <hkallweit1@...il.com>,
        netdev <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jeremy Linton <jeremy.linton@....com>
Subject: Re: [PATCH 2/2] net: mdio: support c45 peripherals on c22 busses

Hi Geert,

On Tue, Feb 08, 2022 at 05:30:01PM +0100, Geert Uytterhoeven wrote:
> On Sun, Apr 4, 2021 at 8:26 PM Danilo Krummrich
> <danilokrummrich@...develop.de> wrote:
> >
> > Yes, I'll get it ready once I got some spare time.
> 
> Did this ever happen? I cannot find such a patch.
> 
> I'm asking because I have access to a board with Marvell 88Q2110 PHYs
> (ID 0x002b0983).
No, it happened that I neither got access to the datasheet nor to a board I
could test on again.

I still have some reverse engineered protocol data and I/O traces from a
proprietary driver, which I can provide to you.

However, without a datasheet this might not lead to a proper driver, whereas
when having a proper datasheet this data might be needless.

> 
> Thanks!
> 
> Gr{oetje,eeting}s,
> 
>                         Geert

- Danilo