> We are much more strict about this now than before. You have to use > standard units and convert to hardware values. It also makes it a lot > easier for DT writers, if they have an idea what the units mean. > > Having the MAC add small delays is something you can add later, > without breaking backwards compatibility. So if you cannot determine > what the units are now, just submit the glue driver without support > for this feature. If anybody really needs it, they can do the needed > research, maybe do some measurements, and then add the code. > > > I did an experiment, when the tx delay is not set, RGMII works a You had rgmii-id in your device tree, so that the PHY added the delays? Andrew