From fbe937473f3ab8e2ba163840f5563108881340dd Mon Sep 17 00:00:00 2001 From: =?utf8?q?Kamil=20Hor=C3=A1k=20-=202N?= Date: Tue, 8 Jul 2025 11:01:38 +0200 Subject: [PATCH] dt-bindings: ethernet-phy: add MII-Lite phy interface type MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Some Broadcom PHYs are capable to operate in simplified MII mode, without TXER, RXER, CRS and COL signals as defined for the MII. The MII-Lite mode can be used on most Ethernet controllers with full MII interface by just leaving the input signals (RXER, CRS, COL) inactive. The absence of COL signal makes half-duplex link modes impossible but does not interfere with BroadR-Reach link modes on Broadcom PHYs, because they are all full-duplex only. Add new interface type "mii-lite" to phy-connection-type enum. Signed-off-by: Kamil Horák - 2N Reviewed-by: Maxime Chevallier Reviewed-by: Florian Fainelli Acked-by: Rob Herring (Arm) Link: https://patch.msgid.link/20250708090140.61355-3-kamilh@axis.com Signed-off-by: Jakub Kicinski --- Documentation/devicetree/bindings/net/ethernet-controller.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml index 7cbf11bbe99ca..66b1cfbbfe221 100644 --- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml +++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml @@ -39,6 +39,7 @@ properties: # MAC. - internal - mii + - mii-lite - gmii - sgmii - psgmii -- 2.47.2