[Linux-stm32] [PATCH net-next 1/2] dt-bindings: net: Add Siflower SF19A2890 GMAC
Andrew Lunn
andrew at lunn.ch
Wed Nov 4 22:29:10 CET 2026
> + rx-internal-delay-ps:
> + description:
> + Applied in steps of about 55 ps, rounded to the nearest step.
> + maximum: 14025
Please add minimum, and multipleOf.
I've not looked at the code yet, but default: 0 would also be good.
> + rx-internal-delay-ps = <550>;
> + tx-internal-delay-ps = <935>;
These values are odd. The RGMII standard says 2ns is required. Where
is the rest coming from.
> + fixed-link {
> + speed = <1000>;
> + full-duplex;
> + };
Does this mean there is a switch on the other end? Maybe look at what
the switch is doing for RGMII delays.
Andrew
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