> I am interested in knowing where that is documented. I want to RTM I
> grepped for a few different words but came up empty
Hi Dan
It probably is not well documented, but one example would be
Documentation/devicetree/bindings/net/ethernet-controller.yaml
says:
# RX and TX delays are added by the MAC when required
- rgmii
# RGMII with internal RX and TX delays provided by the PHY,
# the MAC should not add the RX or TX delays in this case
- rgmii-id
# RGMII with internal RX delay provided by the PHY, the MAC
# should not add an RX delay in this case
- rgmii-rxid
# RGMII with internal TX delay provided by the PHY, the MAC
# should not add an TX delay in this case
Andrew
