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DPAA Backplane Device Bindings

CONTENTS
  - SerDes Node
  - PCS Phy Node

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SerDes Node

DESCRIPTION

SerDes (Serializer/Deserializer) HW peripheral

PROPERTIES

- compatible
		Usage: required
		Value type: <stringlist>
		Definition: Specifies the type of SerDes.
		Must include the prefix "fsl,serdes"
		SerDes can be of different types:
		- 10G SerDes must be specified as: "fsl,serdes-10g"
		- 28G SerDes must be specified as: "fsl,serdes-28g"

- reg
		Usage: required
		Value type: <prop-encoded-array>
		Definition: Specifies the offset of the SerDes configuration registers

- little-endian
		Usage: optional
		Value type: <Boolean>
		Definition: Specifies endianness access to SerDes registers.
		If omitted, big-endian will be used
		See common-properties.txt for complete definition

EXAMPLE

Example of 10G SerDes node:

serdes1: serdes@1ea0000 {
		compatible = "fsl,serdes-10g";
		reg = <0x0 0x1ea0000 0 0x00002000>;
		little-endian;
};

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PCS Phy Node

DESCRIPTION

PCS Phy (Physical Coding Sublayer / Physical layer) node

PROPERTIES

- compatible
		Usage: required
		Value type: <stringlist>
		Definition: A standard property. Specifies the IEEE 802.3 Clause
		Different IEEE 802.3 Clauses can be specified:
		- Clause 22 must be specified as: "ethernet-phy-ieee802.3-c22"
		- Clause 45 must be specified as: "ethernet-phy-ieee802.3-c45"
		For complete definition see:
		Documentation/devicetree/bindings/net/phy.txt

- reg
		Usage: required
		Value type: <prop-encoded-array>
		Definition: A standard property. 
		Specifies the offset of the PCS Phy configuration registers
		For complete definition see:
		Documentation/devicetree/bindings/net/phy.txt		

- backplane-mode
		Usage: required
		Value type: <stringlist>
		Definition: Specifies the speed and type of the protocol used
		Different speeds and backplane protocol types can be used:
		- 10GBase-KR must be specified as: "10gbase-kr"
		- 40GBase-KR must be specified as: "40gbase-kr"

- fsl,lane-handle
		Usage: required
		Value type: <phandle>
		Definition: Specifies the reference to a node representing the SerDes
		device

- fsl,lane-reg
		Usage: required
		Value type: <prop-encoded-array>
		Definition: Specifies the offsets of the SerDes lanes configuration
		registers

EXAMPLE

Example of pcs phy node for 10GBase-KR:

pcs_phy1: ethernet-phy@0 {
	compatible = "ethernet-phy-ieee802.3-c45";
	backplane-mode = "10gbase-kr";
	reg = <0x0>;
	fsl,lane-handle = <&serdes1>;
	fsl,lane-reg = <0xE00>; /* lane G */
};