From: Maxime Chevallier Date: Thu, 8 Jan 2026 08:00:26 +0000 (+0100) Subject: dt-bindings: net: Introduce the ethernet-connector description X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb7a8d0786e491e8dbd5fd72d5a5d042901c8076;p=thirdparty%2Fkernel%2Flinux.git dt-bindings: net: Introduce the ethernet-connector description The ability to describe the physical ports of Ethernet devices is useful to describe multi-port devices, as well as to remove any ambiguity with regard to the nature of the port. Moreover, describing ports allows for a better description of features that are tied to connectors, such as PoE through the PSE-PD devices. Introduce a binding to allow describing the ports, for now with 2 attributes : - The number of pairs, which is a quite generic property that allows differentating between multiple similar technologies such as BaseT1 and "regular" BaseT (which usually means BaseT4). - The media that can be used on that port, such as BaseT for Twisted Copper, BaseC for coax copper, BaseS/L for Fiber, BaseK for backplane ethernet, etc. This allows defining the nature of the port, and therefore avoids the need for vendor-specific properties such as "micrel,fiber-mode" or "ti,fiber-mode". The port description lives in its own file, as it is intended in the future to allow describing the ports for phy-less devices. Signed-off-by: Maxime Chevallier Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260108080041.553250-2-maxime.chevallier@bootlin.com Signed-off-by: Jakub Kicinski --- diff --git a/Documentation/devicetree/bindings/net/ethernet-connector.yaml b/Documentation/devicetree/bindings/net/ethernet-connector.yaml new file mode 100644 index 0000000000000..9ad7a00d4d01b --- /dev/null +++ b/Documentation/devicetree/bindings/net/ethernet-connector.yaml @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/ethernet-connector.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic Ethernet Connector + +maintainers: + - Maxime Chevallier + +description: + An Ethernet Connector represents the output of a network component such as + a PHY, an Ethernet controller with no PHY, or an SFP module. + +properties: + + pairs: + description: + Defines the number of BaseT pairs that are used on the connector. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2, 4] + + media: + description: + The mediums, as defined in 802.3, that can be used on the port. + enum: + - BaseT + - BaseK + - BaseS + - BaseC + - BaseL + - BaseD + - BaseE + - BaseF + - BaseV + - BaseMLD + +required: + - media + +allOf: + - if: + properties: + media: + const: BaseT + then: + required: + - pairs + else: + properties: + pairs: false + +additionalProperties: true + +... diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml index bb4c49fc5fd88..58634fee9fc4d 100644 --- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml +++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml @@ -281,6 +281,17 @@ properties: additionalProperties: false + mdi: + type: object + + patternProperties: + '^connector-[0-9]+$': + $ref: /schemas/net/ethernet-connector.yaml# + + unevaluatedProperties: false + + additionalProperties: false + required: - reg @@ -317,5 +328,12 @@ examples: default-state = "keep"; }; }; + /* Fast Ethernet port, with only 2 pairs wired */ + mdi { + connector-0 { + pairs = <2>; + media = "BaseT"; + }; + }; }; }; diff --git a/MAINTAINERS b/MAINTAINERS index 6a0635fe11f98..bb2007c5cf089 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9395,6 +9395,7 @@ R: Russell King L: netdev@vger.kernel.org S: Maintained F: Documentation/ABI/testing/sysfs-class-net-phydev +F: Documentation/devicetree/bindings/net/ethernet-connector.yaml F: Documentation/devicetree/bindings/net/ethernet-phy.yaml F: Documentation/devicetree/bindings/net/mdio* F: Documentation/devicetree/bindings/net/qca,ar803x.yaml