| Kumar Gala | d0fc2ea | 2008-07-07 11:28:33 -0500 | [diff] [blame^] | 1 | * MDIO IO device |
| 2 | |
| 3 | The MDIO is a bus to which the PHY devices are connected. For each |
| 4 | device that exists on this bus, a child node should be created. See |
| 5 | the definition of the PHY node below for an example of how to define |
| 6 | a PHY. |
| 7 | |
| 8 | Required properties: |
| 9 | - reg : Offset and length of the register set for the device |
| 10 | - compatible : Should define the compatible device type for the |
| 11 | mdio. Currently, this is most likely to be "fsl,gianfar-mdio" |
| 12 | |
| 13 | Example: |
| 14 | |
| 15 | mdio@24520 { |
| 16 | reg = <24520 20>; |
| 17 | compatible = "fsl,gianfar-mdio"; |
| 18 | |
| 19 | ethernet-phy@0 { |
| 20 | ...... |
| 21 | }; |
| 22 | }; |
| 23 | |
| 24 | |
| 25 | * Gianfar-compatible ethernet nodes |
| 26 | |
| 27 | Required properties: |
| 28 | |
| 29 | - device_type : Should be "network" |
| 30 | - model : Model of the device. Can be "TSEC", "eTSEC", or "FEC" |
| 31 | - compatible : Should be "gianfar" |
| 32 | - reg : Offset and length of the register set for the device |
| 33 | - mac-address : List of bytes representing the ethernet address of |
| 34 | this controller |
| 35 | - interrupts : <a b> where a is the interrupt number and b is a |
| 36 | field that represents an encoding of the sense and level |
| 37 | information for the interrupt. This should be encoded based on |
| 38 | the information in section 2) depending on the type of interrupt |
| 39 | controller you have. |
| 40 | - interrupt-parent : the phandle for the interrupt controller that |
| 41 | services interrupts for this device. |
| 42 | - phy-handle : The phandle for the PHY connected to this ethernet |
| 43 | controller. |
| 44 | - fixed-link : <a b c d e> where a is emulated phy id - choose any, |
| 45 | but unique to the all specified fixed-links, b is duplex - 0 half, |
| 46 | 1 full, c is link speed - d#10/d#100/d#1000, d is pause - 0 no |
| 47 | pause, 1 pause, e is asym_pause - 0 no asym_pause, 1 asym_pause. |
| 48 | |
| 49 | Recommended properties: |
| 50 | |
| 51 | - phy-connection-type : a string naming the controller/PHY interface type, |
| 52 | i.e., "mii" (default), "rmii", "gmii", "rgmii", "rgmii-id", "sgmii", |
| 53 | "tbi", or "rtbi". This property is only really needed if the connection |
| 54 | is of type "rgmii-id", as all other connection types are detected by |
| 55 | hardware. |
| 56 | |
| 57 | |
| 58 | Example: |
| 59 | ethernet@24000 { |
| 60 | #size-cells = <0>; |
| 61 | device_type = "network"; |
| 62 | model = "TSEC"; |
| 63 | compatible = "gianfar"; |
| 64 | reg = <24000 1000>; |
| 65 | mac-address = [ 00 E0 0C 00 73 00 ]; |
| 66 | interrupts = <d 3 e 3 12 3>; |
| 67 | interrupt-parent = <40000>; |
| 68 | phy-handle = <2452000> |
| 69 | }; |