On Wed, Jan 15, 2025 at 02:57:04AM +0000, Jacky Chou wrote:

Hi Andrew and Ninad,

quoted

quoted

Thanks. What will be the "phy-mode" value after you make these changes?

Will it be "rgmii-id" for MAC1..4?

It should be.

Perhaps we will keep using "rgmii"

No. It is wrong.

The reason is we cannot be sure all PHYs have support for phy-mode property.
We will refer to the other MACs and PHYs driver about phy-mode and 
rx/tx-internal-delay-ps properties how they implement.

Currently, we will plan to implement RGMII delay in ftgmac100 driver based on
ethernet-controller.yaml.

At same time, we will think how to configure these phy-mode "rgmii-rxid", "rgmii-txid" 
and "rgmii-id in MAC driver.

I already explain how this works once. Please read this thread
again.... The MAC can apply the delays, but it must mask the phy-mode
it passes to the PHY.

	Andrew