linux-kernel - Re: [PATCH] ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY ID

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Message-ID: <90978892-2086-4c70-9698-0957cc71abb8@lunn.ch>
Date: Sun, 17 Nov 2024 21:06:15 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Nobuhiro Iwamatsu <iwamatsu@...auri.org>
Cc: dinguyen@...nel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, robh+dt@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org
Subject: Re: [PATCH] ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY ID

On Sun, Nov 17, 2024 at 05:53:51PM +0900, Nobuhiro Iwamatsu wrote:
> Hi Dinh,
> 
> Please check and apply this patch?
> 
> Thanks,
>   Nobuhiro
> 
> 2024年10月4日(金) 15:16 Nobuhiro Iwamatsu <iwamatsu@...auri.org>:
> >
> > From: Nobuhiro Iwamatsu <iwamatsu@...auri.org>
> >
> > On SoCFPGA/Sodia board, mdio bus cannot be probed, so the PHY cannot be
> > found and the network device does not work.
> >
> > ```
> > stmmaceth ff702000.ethernet eth0: __stmmac_open: Cannot attach to PHY (error: -19)
> > ```
> >
> > To probe the mdio bus, add "snps,dwmac-mdio" as compatible string of the
> > mdio bus. Also the PHY ID connected to this board is 4. Therefore, change
> > to 4.

It is the address which is 4, not the ID.

	Andrew