| * 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-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. |
| - fsl,err006687-workaround-present: If present indicates that the system has |
| the hardware workaround for ERR006687 applied and does not need a software |
| workaround. |
| -interrupt-names: names of the interrupts listed in interrupts property in |
| the same order. The defaults if not specified are |
| __Number of interrupts__ __Default__ |
| 1 "int0" |
| 2 "int0", "pps" |
| 3 "int0", "int1", "int2" |
| 4 "int0", "int1", "int2", "pps" |
| The order may be changed as long as they correspond to the interrupts |
| property. Currently, only i.mx7 uses "int1" and "int2". They correspond to |
| tx/rx queues 1 and 2. "int0" will be used for queue 0 and ENET_MII interrupts. |
| For imx6sx, "int0" handles all 3 queues and ENET_MII. "pps" is for the pulse |
| per second interrupt associated with 1588 precision time protocol(PTP). |
| |
| 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 |
| |
| Deprecated optional properties: |
| To avoid these, create a phy node according to phy.txt in the same |
| directory, and point the fec's "phy-handle" property to it. Then use |
| the phy's reset binding, again described by phy.txt. |
| - 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-reset-active-high : If present then the reset sequence using the GPIO |
| specified in the "phy-reset-gpios" property is reversed (H=reset state, |
| L=operation state). |
| - phy-reset-post-delay : Post reset delay in milliseconds. If present then |
| a delay of phy-reset-post-delay milliseconds will be observed after the |
| phy-reset-gpios has been toggled. Can be omitted thus no delay is |
| observed. Delay is in range of 1ms to 1000ms. Other delays are invalid. |
| |
| Example: |
| |
| ethernet@83fec000 { |
| compatible = "fsl,imx51-fec", "fsl,imx27-fec"; |
| reg = <0x83fec000 0x4000>; |
| interrupts = <87>; |
| phy-mode = "mii"; |
| phy-reset-gpios = <&gpio2 14 GPIO_ACTIVE_LOW>; /* 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 GPIO_ACTIVE_LOW>; /* 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>; |
| }; |
| }; |
| }; |