From: Maxime Chevallier <maxime.chevallier@bootlin.com>
Date: Wed, 17 Aug 2022 12:32:53 +0000 (+0200)
Subject: dt-bindings: net: ethernet-controller: add QUSGMII mode
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0932b12a7496fd3f9f4bd9c7de2c19a8ec9a01e9;p=linux.git

dt-bindings: net: ethernet-controller: add QUSGMII mode

Add a new QUSGMII mode, standing for "Quad Universal Serial Gigabit
Media Independent Interface", a derivative of USGMII which, similarly to
QSGMII, allows to multiplex 4 1Gbps links to a Quad-PHY.

The main difference with QSGMII is that QUSGMII can include an extension
instead of the standard 7bytes ethernet preamble, allowing to convey
arbitrary data such as Timestamps.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
index c138a10228797..4b3c590fcebf0 100644
--- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
@@ -67,6 +67,7 @@ properties:
       - gmii
       - sgmii
       - qsgmii
+      - qusgmii
       - tbi
       - rev-mii
       - rmii