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

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Message-ID: <ffa044e2-ee9e-4a34-af6a-2e45294144f7@lunn.ch>
Date: Wed, 7 May 2025 02:10:48 +0200
From: Andrew Lunn <andrew@...n.ch>
To: 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 Wed, May 07, 2025 at 06:24:29AM +0800, Inochi Amaoto wrote:
> 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";

And this is why i ask, because this is broken. For more information,
please see:

https://patchwork.kernel.org/project/netdevbpf/patch/20250430-v6-15-rc3-net-rgmii-delays-v2-1-099ae651d5e5@lunn.ch/

	Andrew