linux-kernel - Re: [PATCH net-next v8 2/3] arm64: dts: nuvoton: Add Ethernet nodes

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Message-ID: <04df4909-4fdb-4046-917f-2f2e47832c62@lunn.ch>
Date: Mon, 19 Jan 2026 16:22:22 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Joey Lu <a0987203069@...il.com>
Cc: andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org, mcoquelin.stm32@...il.com,
	richardcochran@...il.com, alexandre.torgue@...s.st.com,
	joabreu@...opsys.com, ychuang3@...oton.com, schung@...oton.com,
	yclu4@...oton.com, peppe.cavallaro@...com,
	linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	openbmc@...ts.ozlabs.org, linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH net-next v8 2/3] arm64: dts: nuvoton: Add Ethernet nodes

On Mon, Jan 19, 2026 at 03:33:40PM +0800, Joey Lu wrote:
> Add GMAC nodes for our MA35D1 development boards:
> two RGMII interfaces for SOM board, and one RGMII
> and one RMII interface for IoT board.
> 
> Signed-off-by: Joey Lu <a0987203069@...il.com>
> ---
>  .../boot/dts/nuvoton/ma35d1-iot-512m.dts      | 12 +++++
>  .../boot/dts/nuvoton/ma35d1-som-256m.dts      | 10 ++++
>  arch/arm64/boot/dts/nuvoton/ma35d1.dtsi       | 54 +++++++++++++++++++

I'm somewhat confused with your naming here.

A SoM generally needs a carrier board. So the SoM is described as a
.dtsi file, which the carrier board .dts file can then include.

Where are the PHYs? Sometimes the PHYs are on the SoM, sometimes they
are on the carrier board. If they are not actually on the SoM, the
PHYs should not be listed as part of the SoM.

     Andrew