Shawn Guo a3caad0a16 net: fec: add phy-reset-duration for device tree probe
Different boards may require different phy reset duration.  Add property
phy-reset-duration for device tree probe, so that the boards that need
a longer reset duration can specify it in their device tree.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-27 21:22:06 -07:00

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* 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 : String, operation mode of the PHY interface.
Supported values are: "mii", "gmii", "sgmii", "tbi", "rmii",
"rgmii", "rgmii-id", "rgmii-rxid", "rgmii-txid", "rtbi", "smii".
Optional properties:
- local-mac-address : 6 bytes, mac address
- 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.
Example:
ethernet@83fec000 {
compatible = "fsl,imx51-fec", "fsl,imx27-fec";
reg = <0x83fec000 0x4000>;
interrupts = <87>;
phy-mode = "mii";
phy-reset-gpios = <&gpio1 14 0>; /* GPIO2_14 */
local-mac-address = [00 04 9F 01 1B B9];
};