[PATCH 3/3] dt-bindings: ethernet-phy: add optional mii-lite-mode flag
From: Kamil Horák (2N) <hidden>
Date: 2025-06-20 13:46:26
Also in:
lkml, netdev
Subsystem:
ethernet phy library, networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
The Broadcom bcm54810 and bcm54811 PHYs support MII and MII-Lite interface modes. The MII-Lite mode does not use TXR, RXER, CRS and COL signals. However, the hardware strapping only selects MII mode, distinction between MII and MII-Lite must be done by software. Add optional mii-lite-mode flag to switch the PHY to MII-Lite mode. Signed-off-by: Kamil Horák (2N) <redacted> --- Documentation/devicetree/bindings/net/ethernet-phy.yaml | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
index 71e2cd32580f..edfd16044770 100644
--- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml@@ -101,6 +101,14 @@ properties: 1BR-10 names. The PHY must be configured to operate in BroadR-Reach mode by software. + mii-lite-mode: + $ref: /schemas/types.yaml#/definitions/flag + description: + If set, indicates the use of MII-Lite variant of MII, without the + functions of TXER, RXER, CRS and COL signals for Broadcom PHYs. These + PHYs can be strapped to use MII mode but the MII or MII-Lite selection + must be done by software. + clocks: maxItems: 1 description:
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