net/smsc911x: add device tree probe support

It adds device tree probe support for smsc911x driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Steve Glendinning <steve.glendinning@smsc.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 38 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/net/smsc911x.txt b/Documentation/devicetree/bindings/net/smsc911x.txt
new file mode 100644
index 0000000..adb5b57
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/smsc911x.txt
@@ -0,0 +1,38 @@
+* Smart Mixed-Signal Connectivity (SMSC) LAN911x/912x Controller
+
+Required properties:
+- compatible : Should be "smsc,lan<model>", "smsc,lan9115"
+- reg : Address and length of the io space for SMSC LAN
+- interrupts : Should contain SMSC LAN interrupt line
+- interrupt-parent : Should be the phandle for the interrupt controller
+  that services interrupts for this device
+- 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:
+- reg-shift : Specify the quantity to shift the register offsets by
+- reg-io-width : Specify the size (in bytes) of the IO accesses that
+  should be performed on the device.  Valid value for SMSC LAN is
+  2 or 4.  If it's omitted or invalid, the size would be 2.
+- smsc,irq-active-high : Indicates the IRQ polarity is active-high
+- smsc,irq-push-pull : Indicates the IRQ type is push-pull
+- smsc,force-internal-phy : Forces SMSC LAN controller to use
+  internal PHY
+- smsc,force-external-phy : Forces SMSC LAN controller to use
+  external PHY
+- smsc,save-mac-address : Indicates that mac address needs to be saved
+  before resetting the controller
+- local-mac-address : 6 bytes, mac address
+
+Examples:
+
+lan9220@f4000000 {
+	compatible = "smsc,lan9220", "smsc,lan9115";
+	reg = <0xf4000000 0x2000000>;
+	phy-mode = "mii";
+	interrupt-parent = <&gpio1>;
+	interrupts = <31>;
+	reg-io-width = <4>;
+	smsc,irq-push-pull;
+};