Re: [net-next PATCH v4 07/11] dt-bindings: net: ethernet-controller: permit to define multiple PCS
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From: Sean Anderson <hidden>
Date: 2025-05-13 18:17:04
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linux-arm-kernel, linux-devicetree, linux-mediatek, lkml, llvm
On 5/11/25 16:12, Christian Marangi wrote:
quoted hunk ↗ jump to hunk
Drop the limitation of a single PCS in pcs-handle property. Multiple PCS can be defined for an ethrnet-controller node to support various PHY interface mode type. It's very common for SoCs to have a 2 or more dedicated PCS for Base-X (for example SGMII, 1000base-x, 2500base-x, ...) and Base-R (for example USXGMII,10base-r, ...) with the MAC selecting one of the other based on the attached PHY. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> --- Documentation/devicetree/bindings/net/ethernet-controller.yaml | 2 -- 1 file changed, 2 deletions(-)diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml index 7cbf11bbe99c..60605b34d242 100644 --- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml +++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml@@ -84,8 +84,6 @@ properties: pcs-handle: $ref: /schemas/types.yaml#/definitions/phandle-array - items: - maxItems: 1 description: Specifies a reference to a node representing a PCS PHY device on a MDIO bus to link with an external PHY (phy-handle) if exists.
This just specifies the default. Bindings for individual macs can override this. See fsl,fman-dtsec.yaml for an example. --Sean