Device-tree binding documentation for xilinx gmiitorgmii converter.
Signed-off-by: Kedareswara rao Appana <appanad@xxxxxxxxxx>
---
Changes for v4:
--> Modified compatible as suggested by Rob.
--> Removed underscores from the converter node name as suggested by Rob.
Changes for v3:
--> None.
Changes for v2:
--> New patch.
.../devicetree/bindings/net/xilinx_gmii2rgmii.txt | 38 ++++++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/xilinx_gmii2rgmii.txt
diff --git a/Documentation/devicetree/bindings/net/xilinx_gmii2rgmii.txt b/Documentation/devicetree/bindings/net/xilinx_gmii2rgmii.txt
new file mode 100644
index 0000000..453680d
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/xilinx_gmii2rgmii.txt
@@ -0,0 +1,38 @@
+XILINX GMIITORGMII Converter Driver Device Tree Bindings
+--------------------------------------------------------
+
+The Gigabit Media Independent Interface (GMII) to Reduced Gigabit Media
+Independent Interface (RGMII) core provides the RGMII between RGMII-compliant
+Ethernet physical media devices (PHY) and the Gigabit Ethernet controller.
+This core can be used in all three modes of operation(10/100/1000 Mb/s).
+The Management Data Input/Output (MDIO) interface is used to configure the
+Speed of operation. This core can switch dynamically between the three
+Different speed modes by configuring the conveter register through mdio write.
+
+The MDIO is a bus to which the PHY devices are connected. For each
+device that exists on this bus, a child node should be created. See
+the definition of the PHY node in booting-without-of.txt for an example
+of how to define a PHY.
+
+This converter sits between the MAC and the external phy.
+MAC <==> GMII2RGMII <==> RGMII_PHY
+
+Required properties:
+ - compatible : Should be "xlnx,gmii-to-rgmii-1.0"
+ - reg : The ID number for the phy, usually a small integer
+ - phy-handle: Should point to the external phy device.
+ See ethernet.txt file in the same directory.
+
+Example:
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy: ethernet-phy@0 {
+ ......
+ };
+ gmiitorgmii: gmiitorgmii@8 {
+ compatible = "xlnx,gmii-to-rgmii-1.0";
+ reg = <8>;
+ phy-handle = <&phy>;
+ };
+ };
--
2.1.2
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