> Hi Andrew, > > I've just thought about this issue again. As mentioned, a number of MAC > drivers(*) implement what is described here: > > https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/net/ethernet-controller.yaml?h=v6.13#n77 > > > That is, the delay is either added by the PHY or the MAC; having a delay on the > PCB is simply not supported. Yes it is, you are reading it wrong. First off, as said a number of times in the last couple of months, this description is from the perspective of the PHY. It is not the board perspective. So: # RX and TX delays are added by the MAC when required - rgmii
