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Diffstat (limited to 'kernel/Documentation/devicetree/bindings/net/fsl-fec.txt')
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/net/fsl-fec.txt | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/net/fsl-fec.txt b/kernel/Documentation/devicetree/bindings/net/fsl-fec.txt new file mode 100644 index 000000000..a9eb611be --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/net/fsl-fec.txt @@ -0,0 +1,62 @@ +* Freescale Fast Ethernet Controller (FEC) + +Required properties: +- compatible : Should be "fsl,<soc>-fec" +- reg : Address and length of the register set for the device +- interrupts : Should contain fec interrupt +- phy-mode : See ethernet.txt file in the same directory + +Optional properties: +- phy-reset-gpios : Should specify the gpio for phy reset +- phy-reset-duration : Reset duration in milliseconds. Should present + only if property "phy-reset-gpios" is available. Missing the property + will have the duration be 1 millisecond. Numbers greater than 1000 are + invalid and 1 millisecond will be used instead. +- phy-supply : regulator that powers the Ethernet PHY. +- phy-handle : phandle to the PHY device connected to this device. +- fixed-link : Assume a fixed link. See fixed-link.txt in the same directory. + Use instead of phy-handle. +- fsl,num-tx-queues : The property is valid for enet-avb IP, which supports + hw multi queues. Should specify the tx queue number, otherwise set tx queue + number to 1. +- fsl,num-rx-queues : The property is valid for enet-avb IP, which supports + hw multi queues. Should specify the rx queue number, otherwise set rx queue + number to 1. +- fsl,magic-packet : If present, indicates that the hardware supports waking + up via magic packet. + +Optional subnodes: +- mdio : specifies the mdio bus in the FEC, used as a container for phy nodes + according to phy.txt in the same directory + +Example: + +ethernet@83fec000 { + compatible = "fsl,imx51-fec", "fsl,imx27-fec"; + reg = <0x83fec000 0x4000>; + interrupts = <87>; + phy-mode = "mii"; + phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */ + local-mac-address = [00 04 9F 01 1B B9]; + phy-supply = <®_fec_supply>; +}; + +Example with phy specified: + +ethernet@83fec000 { + compatible = "fsl,imx51-fec", "fsl,imx27-fec"; + reg = <0x83fec000 0x4000>; + interrupts = <87>; + phy-mode = "mii"; + phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */ + local-mac-address = [00 04 9F 01 1B B9]; + phy-supply = <®_fec_supply>; + phy-handle = <ðphy>; + mdio { + ethphy: ethernet-phy@6 { + compatible = "ethernet-phy-ieee802.3-c22"; + reg = <6>; + max-speed = <100>; + }; + }; +}; |