Re: [PATCH net-next v7 1/4] dt-bindings: ethernet: eswin: add clock sampling control

Andrew Lunn
2026-04-29T01:28:31Z

> For the TX path of eth1, there is also a skew between the TX clock
> and data on the MAC controller inside the silicon. This skew happens
> to be approximately 2 ns. Therefore, it can be considered that the
> 2 ns delay of TX is provided by the MAC, so the TX is compliant with
> the RGMII standard.

> tx-internal-delay-ps:
> - enum: [0, 200, 600, 1200, 1600, 1800, 2000, 2200, 2400]
> + minimum: 0
> + maximum: 2540
> + multipleOf: 20

This does not seem correct for eth1. Isn't minimum 2000, maximum 4540?
You have this fixed 2ns you cannot turn off.

Andrew