mirror of https://gitee.com/openkylin/linux.git
70 lines
2.2 KiB
Plaintext
70 lines
2.2 KiB
Plaintext
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* MDIO IO device
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The MDIO is a bus to which the PHY devices are connected. For each
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device that exists on this bus, a child node should be created. See
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the definition of the PHY node below for an example of how to define
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a PHY.
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Required properties:
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- reg : Offset and length of the register set for the device
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- compatible : Should define the compatible device type for the
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mdio. Currently, this is most likely to be "fsl,gianfar-mdio"
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Example:
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mdio@24520 {
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reg = <24520 20>;
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compatible = "fsl,gianfar-mdio";
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ethernet-phy@0 {
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......
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};
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};
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* Gianfar-compatible ethernet nodes
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Required properties:
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- device_type : Should be "network"
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- model : Model of the device. Can be "TSEC", "eTSEC", or "FEC"
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- compatible : Should be "gianfar"
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- reg : Offset and length of the register set for the device
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- mac-address : List of bytes representing the ethernet address of
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this controller
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- interrupts : <a b> where a is the interrupt number and b is a
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field that represents an encoding of the sense and level
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information for the interrupt. This should be encoded based on
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the information in section 2) depending on the type of interrupt
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controller you have.
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- interrupt-parent : the phandle for the interrupt controller that
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services interrupts for this device.
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- phy-handle : The phandle for the PHY connected to this ethernet
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controller.
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- fixed-link : <a b c d e> where a is emulated phy id - choose any,
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but unique to the all specified fixed-links, b is duplex - 0 half,
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1 full, c is link speed - d#10/d#100/d#1000, d is pause - 0 no
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pause, 1 pause, e is asym_pause - 0 no asym_pause, 1 asym_pause.
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Recommended properties:
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- phy-connection-type : a string naming the controller/PHY interface type,
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i.e., "mii" (default), "rmii", "gmii", "rgmii", "rgmii-id", "sgmii",
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"tbi", or "rtbi". This property is only really needed if the connection
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is of type "rgmii-id", as all other connection types are detected by
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hardware.
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Example:
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ethernet@24000 {
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#size-cells = <0>;
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device_type = "network";
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model = "TSEC";
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compatible = "gianfar";
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reg = <24000 1000>;
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mac-address = [ 00 E0 0C 00 73 00 ];
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interrupts = <d 3 e 3 12 3>;
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interrupt-parent = <40000>;
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phy-handle = <2452000>
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};
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