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

Andrew Lunn andrew at lunn.ch
Wed Aug 20 12:43:34 AEST 2025


On Wed, Aug 20, 2025 at 12:40:02AM +0000, Jacky Chou wrote:
> Hi Andrew,
> 
> Thank you for your reply.
> 
> > > 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".

	Andrew


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