mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
104 lines
2.5 KiB
104 lines
2.5 KiB
* 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 |
|
|
|
1.1. Using the local ENETC Port MDIO interface |
|
|
|
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 Documentation/devicetree/bindings/net/ethernet.txt or |
|
Documentation/devicetree/bindings/net/phy.txt. |
|
|
|
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>; |
|
}; |
|
}; |
|
}; |
|
|
|
1.2. Using the central MDIO PCIe endpoint device |
|
|
|
In this case, the mdio node should be defined as another PCIe |
|
endpoint node, at the same level with the ENETC port nodes. |
|
|
|
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-mdio". |
|
|
|
The remaining required mdio bus properties are standard, their bindings |
|
already defined in Documentation/devicetree/bindings/net/mdio.txt. |
|
|
|
Example: |
|
|
|
ethernet@0,0 { |
|
compatible = "fsl,enetc"; |
|
reg = <0x000000 0 0 0 0>; |
|
phy-handle = <&sgmii_phy0>; |
|
phy-connection-type = "sgmii"; |
|
}; |
|
|
|
mdio@0,3 { |
|
compatible = "fsl,enetc-mdio"; |
|
reg = <0x000300 0 0 0 0>; |
|
#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 Documentation/devicetree/bindings/net/fixed-link.txt. |
|
|
|
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; |
|
}; |
|
};
|
|
|