From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Yajun Deng <yajun.deng@linux.dev>
Cc: Andrew Lunn <andrew@lunn.ch>,
hkallweit1@gmail.com, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next] net: phy: Synchronize c45_ids to phy_id
Date: Fri, 23 May 2025 18:37:04 +0100 [thread overview]
Message-ID: <aDCyQOdcREDJTa-V@shell.armlinux.org.uk> (raw)
In-Reply-To: <5d16e7c3201df22074019574d947dab1b5934b87@linux.dev>
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.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2025-05-23 17:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-22 13:19 [PATCH net-next] net: phy: Synchronize c45_ids to phy_id Yajun Deng
2025-05-22 13:26 ` Russell King (Oracle)
2025-05-22 13:39 ` Andrew Lunn
2025-05-23 2:10 ` Yajun Deng
2025-05-23 13:03 ` Andrew Lunn
2025-05-23 17:39 ` Russell King (Oracle)
2025-05-23 17:37 ` Russell King (Oracle) [this message]
2025-05-24 1:36 ` Yajun Deng
2025-05-28 6:35 ` kernel test robot
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