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Date: Tue, 26 Feb 2019 15:42:23 +0200 From: Claudiu Manoil <claudiu.manoil@....com> To: Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>, "David S . Miller" <davem@...emloft.net> Cc: alexandru.marginean@....com, Andrew Lunn <andrew@...n.ch>, linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH net-next v4 4/4] dt-bindings: net: freescale: enetc: Add connection bindings for ENETC ethernet nodes Define connection bindings (external PHY connections and internal links) for the ENETC on-chip ethernet controllers. Signed-off-by: Claudiu Manoil <claudiu.manoil@....com> --- v3 - added this patch to the set v4 - documented strictly the enetc node bindings, changed node type from "pci" to "ethernet" and added compatible string (Rob H.) .../devicetree/bindings/net/fsl-enetc.txt | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/fsl-enetc.txt diff --git a/Documentation/devicetree/bindings/net/fsl-enetc.txt b/Documentation/devicetree/bindings/net/fsl-enetc.txt new file mode 100644 index 0000000..c812e25 --- /dev/null +++ b/Documentation/devicetree/bindings/net/fsl-enetc.txt @@ -0,0 +1,69 @@ +* ENETC ethernet device tree bindings + +Depending on board design and ENETC port type (internal or +external) there are two supported link modes specified by +below device tree bindings. + +Required properties: + +- reg : Specifies PCIe Device Number and Function + Number of the ENETC endpoint device, according + to parent node bindings. +- compatible : Should be "fsl,enetc". + +1) The ENETC external port is connected to a MDIO configurable phy: + +In this case, the ENETC node should include a "mdio" sub-node +that in turn should contain the "ethernet-phy" node describing the +external phy. Below properties are required, their bindings +already defined in ethernet.txt or phy.txt, under +Documentation/devicetree/bindings/net/*. + +Required: + +- phy-handle : Phandle to a PHY on the MDIO bus. + Defined in ethernet.txt. + +- phy-connection-type : Defined in ethernet.txt. + +- mdio : "mdio" node, defined in mdio.txt. + +- ethernet-phy : "ethernet-phy" node, defined in phy.txt. + +Example: + + ethernet@0,0 { + compatible = "fsl,enetc"; + reg = <0x000000 0 0 0 0>; + phy-handle = <&sgmii_phy0>; + phy-connection-type = "sgmii"; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + sgmii_phy0: ethernet-phy@2 { + reg = <0x2>; + }; + }; + }; + +2) The ENETC port is an internal port or has a fixed-link external +connection: + +In this case, the ENETC port node defines a fixed link connection, +as specified by "fixed-link.txt", under +Documentation/devicetree/bindings/net/*. + +Required: + +- fixed-link : "fixed-link" node, defined in "fixed-link.txt". + +Example: + ethernet@0,2 { + compatible = "fsl,enetc"; + reg = <0x000200 0 0 0 0>; + fixed-link { + speed = <1000>; + full-duplex; + }; + }; -- 2.7.4
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