netdev - 回覆: 回覆: [net-next v2 0/4] Add AST2600 RGMII delay into ftgmac100

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Message-ID:
 <SEYPR06MB5134C67403A80C14797F8F859D33A@SEYPR06MB5134.apcprd06.prod.outlook.com>
Date: Wed, 20 Aug 2025 06:09:51 +0000
From: Jacky Chou <jacky_chou@...eedtech.com>
To: Andrew Lunn <andrew@...n.ch>
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>, Joel Stanley <joel@....id.au>, Andrew Jeffery
	<andrew@...econstruct.com.au>, Simon Horman <horms@...nel.org>, Heiner
 Kallweit <hkallweit1@...il.com>, Uwe Kleine-König
	<u.kleine-koenig@...libre.com>, Po-Yu Chuang <ratbert@...aday-tech.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-aspeed@...ts.ozlabs.org"
	<linux-aspeed@...ts.ozlabs.org>, "taoren@...a.com" <taoren@...a.com>
Subject:
 回覆: 回覆: [net-next v2 0/4] Add AST2600 RGMII delay into ftgmac100

> > > > This patch series adds support for configuring RGMII internal
> > > > delays for the Aspeed AST2600 FTGMAC100 Ethernet MACs.
> > >
> > > So i think you are doing things in the wrong order. You first need
> > > to sort out the mess of most, if not all, AST2600 have the wrong
> > > phy-mode, because the RGMII delay configuration is hidden, and set
> wrongly.
> > >
> > > Please fix that first.
> > >
> >
> > The RGMII delay is configured in U-boot stage, and it is not changed
> > when booting to Linux. I want to know whether the first thing to
> > correct here is whether the phy-mode in aspeed-ast2600-evb.dts is
> > rgmii-id. Our AST2600 EVB, there is no delay on board, so, I need to change
> > the phy-mode to "rgmii-id" to meet the RGMII usage first?
> 
> If there is no delay on the PCB, then phy-mode is "rgmii-id".
> 

I will submit a single patch to correct the phy-mode to "rgmii-id" in our EVB dts,
aspeed-ast2600-evb.dts.

Thanks,
Jacky