Hi,

On Tue Jun 24, 2025 at 12:53 PM CEST, Matthias Schiffer wrote:

All am65-cpsw controllers have a fixed TX delay, so the PHY interface
mode must be fixed up to account for this.

Modes that claim to a delay on the PCB can't actually work. Warn people
to update their Device Trees if one of the unsupported modes is specified.

Signed-off-by: Matthias Schiffer <redacted>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>

For whatever reason, this patch is breaking network on our board
(just transmission). We have rgmii-id in our devicetree which is now
modified to be just rgmii-rxid. The board has a TI AM67A (J722S) with a
Broadcom BCM54210E PHY. I'm not sure, if AM67A MAC doesn't add any
delay or if it's too small. I'll need to ask around if there are any
measurements but my colleague doing the measurements is on holiday
at the moment.

-michael