70 lines
1.6 KiB
Plaintext
70 lines
1.6 KiB
Plaintext
|
* 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;
|
||
|
|
};
|
||
|
|
};
|