[PATCH net v3 2/4] dt-bindings: ethernet-phy: add MII-Lite phy interface type
From: Kamil Horák - 2N <hidden>
Date: 2025-06-30 11:31:02
Also in:
linux-devicetree, lkml
Subsystem:
networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
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 <redacted> --- 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 7cbf11bbe99c..66b1cfbbfe22 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
--
2.39.5