linux-kernel - Re: [PATCH net-next] net: phy: Synchronize c45_ids to phy

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Message-ID: <4c14bb4887acf67ec5a4893c8e3f736c2a77a4a3@linux.dev>
Date: Sat, 24 May 2025 01:36:16 +0000
From: "Yajun Deng" <yajun.deng@...ux.dev>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: "Andrew Lunn" <andrew@...n.ch>, hkallweit1@...il.com,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] net: phy: Synchronize c45_ids to phy_id

May 24, 2025 at 1:37 AM, "Russell King (Oracle)" <linux@...linux.org.uk> wrote:



> 
> On Fri, May 23, 2025 at 02:10:00AM +0000, Yajun Deng wrote:
> 
> > 
> > I noticed that. I tested the BCM89890, 88X3310 and 88Q2110 PHY devices,
> > 
> >  and the ID is always the same in different MMDs.
> > 
> 
> The 88x3310 PHY uses:
> 
>  Device ID Package ID OUI
> 
> MMD 1: 0x002b09aa 0x002b09aa 00:0a:c2
> 
> MMD 3: 0x002b09aa 0x002b09aa 00:0a:c2
> 
> MMD 4: 0x01410daa 0x01410daa 00:50:43
> 
> MMD 7: 0x002b09aa 0x002b09aa 00:0a:c2
> 
> other MMDs do not contain an ID.
> 
> According to https://hwaddress.com/oui-iab/00-0A-C2/, 00:0a:c2 is/was
> 
> Wuhan FiberHome Digital Technology Co.
> 
> 00:50:43 is Marvell Semiconductor.
> 
> Not all PHYs have a single ID. IEEE 802.3 allows for this.
> 

Okay, thank you. I'll add the c45_ids entry for the c45 device.

> -- 
> 
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> 
> FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
>