On Tue, 15 Apr 2025 12:18:01 +0200, Matthias Schiffer wrote: > As discussed [1], the comments for the different rgmii(-*id) modes do not > accurately describe what these values mean. > > As the Device Tree is primarily supposed to describe the hardware and not > its configuration, the different modes need to distinguish board designs > (if a delay is built into the PCB using different trace lengths); whether > a delay is added on the MAC or the PHY side when needed should not matter. > > Unfortunately, implementation in MAC drivers is somewhat inconsistent > where a delay is fixed or configurable on the MAC side. As a first step > towards sorting this out, improve the documentation. > > Link: https://lore.kernel.org/lkml/d25b1447-c28b-4998-b238-92672434dc28@xxxxxxx/ [1] > Signed-off-by: Matthias Schiffer <matthias.schiffer@xxxxxxxxxxxxxxx> > --- > .../bindings/net/ethernet-controller.yaml | 16 +++++++++------- > 1 file changed, 9 insertions(+), 7 deletions(-) > Acked-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
