linux-kernel - Re: [PATCH v3 05/10] ARM: dts: aspeed: system1: Add RGMII support

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Message-ID: <b80b9224-d428-4ad9-a30d-40e2d30be654@lunn.ch>
Date: Wed, 8 Jan 2025 21:13:46 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Ninad Palsule <ninad@...ux.ibm.com>
Cc: minyard@....org, robh@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, andrew+netdev@...n.ch, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	ratbert@...aday-tech.com, openipmi-developer@...ts.sourceforge.net,
	netdev@...r.kernel.org, joel@....id.au, andrew@...econstruct.com.au,
	devicetree@...r.kernel.org, eajames@...ux.ibm.com,
	linux-arm-kernel@...ts.infradead.org, linux-aspeed@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 05/10] ARM: dts: aspeed: system1: Add RGMII support

On Wed, Jan 08, 2025 at 12:43:07PM -0600, Ninad Palsule wrote:
> Hello Andrew,
> 
> 
> On 1/8/25 11:03, Andrew Lunn wrote:
> > On Wed, Jan 08, 2025 at 10:36:33AM -0600, Ninad Palsule wrote:
> > > system1 has 2 transceiver connected through the RGMII interfaces. Added
> > > device tree entry to enable RGMII support.
> > > 
> > > ASPEED AST2600 documentation recommends using 'rgmii-rxid' as a
> > > 'phy-mode' for mac0 and mac1 to enable the RX interface delay from the
> > > PHY chip.
> > You appear to if ignored my comment. Please don't do that. If you have
> > no idea about RGMII delays, please say so, so i can help you debug
> > what is wrong.
> > 
> > NACK
> 
> I think there is a misunderstanding. I did not ignore your comment. I have
> contacted ASPEED and asked them to respond. I think Jacky from Aspeed
> replied to your mail.

You did not mention in the cover letter, or the patch. I asked for a
detailed explanation in the commit message why it is correct, which
you did not do.

Now we have more details, it is clear Ethernet support for this board
needs to wait until we figure out how to fix the MAC driver. Please
either wait with this patchset until that is done, or drop this one
patch for the moment and submit it later once the MAC driver is fixed.

      Andrew