1* MDIO IO device 2 3The MDIO is a bus to which the PHY devices are connected. For each 4device that exists on this bus, a child node should be created. See 5the definition of the PHY node in booting-without-of.txt for an example 6of how to define a PHY. 7 8Required 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 13Example: 14 15 mdio@24520 { 16 reg = <24520 20>; 17 compatible = "fsl,gianfar-mdio"; 18 19 ethernet-phy@0 { 20 ...... 21 }; 22 }; 23 24* TBI Internal MDIO bus 25 26As of this writing, every tsec is associated with an internal TBI PHY. 27This PHY is accessed through the local MDIO bus. These buses are defined 28similarly to the mdio buses, except they are compatible with "fsl,gianfar-tbi". 29The TBI PHYs underneath them are similar to normal PHYs, but the reg property 30is considered instructive, rather than descriptive. The reg property should 31be chosen so it doesn't interfere with other PHYs on the bus. 32 33* Gianfar-compatible ethernet nodes 34 35Properties: 36 37 - device_type : Should be "network" 38 - model : Model of the device. Can be "TSEC", "eTSEC", or "FEC" 39 - compatible : Should be "gianfar" 40 - reg : Offset and length of the register set for the device 41 - local-mac-address : List of bytes representing the ethernet address of 42 this controller 43 - interrupts : For FEC devices, the first interrupt is the device's 44 interrupt. For TSEC and eTSEC devices, the first interrupt is 45 transmit, the second is receive, and the third is error. 46 - phy-handle : The phandle for the PHY connected to this ethernet 47 controller. 48 - fixed-link : <a b c d e> where a is emulated phy id - choose any, 49 but unique to the all specified fixed-links, b is duplex - 0 half, 50 1 full, c is link speed - d#10/d#100/d#1000, d is pause - 0 no 51 pause, 1 pause, e is asym_pause - 0 no asym_pause, 1 asym_pause. 52 - phy-connection-type : a string naming the controller/PHY interface type, 53 i.e., "mii" (default), "rmii", "gmii", "rgmii", "rgmii-id", "sgmii", 54 "tbi", or "rtbi". This property is only really needed if the connection 55 is of type "rgmii-id", as all other connection types are detected by 56 hardware. 57 - fsl,magic-packet : If present, indicates that the hardware supports 58 waking up via magic packet. 59 - bd-stash : If present, indicates that the hardware supports stashing 60 buffer descriptors in the L2. 61 - rx-stash-len : Denotes the number of bytes of a received buffer to stash 62 in the L2. 63 - rx-stash-idx : Denotes the index of the first byte from the received 64 buffer to stash in the L2. 65 66Example: 67 ethernet@24000 { 68 device_type = "network"; 69 model = "TSEC"; 70 compatible = "gianfar"; 71 reg = <0x24000 0x1000>; 72 local-mac-address = [ 00 E0 0C 00 73 00 ]; 73 interrupts = <29 2 30 2 34 2>; 74 interrupt-parent = <&mpic>; 75 phy-handle = <&phy0> 76 }; 77