linux-kernel - Re: [PATCH net-next 0/4] riscv: sophgo: Add ethernet support for SG2042

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Message-ID: <fgao5qnim6o3gvixzl7lnftgsish6uajlia5okylxskn3nrexe@gyvgrp72jvj6>
Date: Wed, 7 May 2025 06:24:29 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Andrew Lunn <andrew@...n.ch>, Inochi Amaoto <inochiama@...il.com>
Cc: Andrew Lunn <andrew+netdev@...n.ch>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Chen Wang <unicorn_wang@...look.com>, Paul Walmsley <paul.walmsley@...ive.com>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
	Alexandre Ghiti <alex@...ti.fr>, Maxime Coquelin <mcoquelin.stm32@...il.com>, 
	Alexandre Torgue <alexandre.torgue@...s.st.com>, Richard Cochran <richardcochran@...il.com>, 
	Guo Ren <guoren@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
	Uwe Kleine-König <u.kleine-koenig@...libre.com>, "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>, 
	Romain Gantois <romain.gantois@...tlin.com>, Joe Hattori <joe@...is.s.u-tokyo.ac.jp>, 
	Lothar Rubusch <l.rubusch@...il.com>, Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, 
	Giuseppe Cavallaro <peppe.cavallaro@...com>, Jose Abreu <joabreu@...opsys.com>, netdev@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, sophgo@...ts.linux.dev, 
	linux-riscv@...ts.infradead.org, linux-stm32@...md-mailman.stormreply.com, 
	linux-arm-kernel@...ts.infradead.org, Yixun Lan <dlan@...too.org>, Longbin Li <looong.bin@...il.com>
Subject: Re: [PATCH net-next 0/4] riscv: sophgo: Add ethernet support for
 SG2042

On Tue, May 06, 2025 at 02:03:18PM +0200, Andrew Lunn wrote:
> On Tue, May 06, 2025 at 05:32:50PM +0800, Inochi Amaoto wrote:
> > The ethernet controller of SG2042 is Synopsys DesignWare IP with
> > tx clock. Add device id for it.
> > 
> > This patch can only be tested on a SG2042 x4 evb board, as pioneer
> > does not expose this device.
> 
> Do you have a patch for this EVB board? Ideally there should be a user
> added at the same time as support for a device.
> 
> 	Andrew

Yes, I have one for this device. And Han Gao told me that he will send
the board patch for the evb board. So I only send the driver.
And the fragment for the evb board is likes below, I think it is kind
of trivial:

&gmac0 {
	phy-handle = <&phy0>;
	phy-mode = "rgmii-txid";
	status = "okay";

	mdio {
		phy0: phy@0 {
			compatible = "ethernet-phy-ieee802.3-c22";
			reg = <0>;
			reset-gpios = <&port0a 27 GPIO_ACTIVE_LOW>;
			reset-assert-us = <100000>;
			reset-deassert-us = <100000>;
		};
	};
};
 
Regards,
Inochi