linux-kernel - Re: [PATCH v2] net: dsa: mv88e6xxx: fix external smi for mv88e6176

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Message-ID: <3c5a8746-4d57-49d5-8a3d-5af7514c46b3@lunn.ch>
Date: Mon, 16 Jun 2025 19:55:21 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Robert Cross <quantumcross@...il.com>
Cc: netdev@...r.kernel.org, bpf@...r.kernel.org, olteanv@...il.com,
	davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: dsa: mv88e6xxx: fix external smi for mv88e6176

On Mon, Jun 16, 2025 at 12:20:25PM -0400, Robert Cross wrote:
> (Sorry this is my second attempt, I fixed my email client)
> 
> I was trying to enable external SMI on a mv88e6176.

        MV88E6XXX_FAMILY_6352,  /* 6172 6176 6240 6352 */

So it is part of the 6352 family. That family does not have an
internal and external MDIO bus. It has a single bus which is both
internal and external.

It is only the 6390 family and above which has two MDIO busses.

    Andrew

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