From: Carlos Munoz <cmu...@cavium.com>

Add bindings for Common Ethernet Interface (BGX) block.

Acked-by: Rob Herring <r...@kernel.org>
Signed-off-by: Carlos Munoz <cmu...@cavium.com>
Signed-off-by: Steven J. Hill <steven.h...@cavium.com>
Signed-off-by: David Daney <david.da...@cavium.com>
---
 .../devicetree/bindings/net/cavium-bgx.txt         | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/cavium-bgx.txt

diff --git a/Documentation/devicetree/bindings/net/cavium-bgx.txt 
b/Documentation/devicetree/bindings/net/cavium-bgx.txt
new file mode 100644
index 000000000000..830c5f08dddd
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/cavium-bgx.txt
@@ -0,0 +1,61 @@
+* Common Ethernet Interface (BGX) block
+
+Properties:
+
+- compatible: "cavium,octeon-7890-bgx": Compatibility with all cn7xxx SOCs.
+
+- reg: The base address of the BGX block.
+
+- #address-cells: Must be <1>.
+
+- #size-cells: Must be <0>.  BGX addresses have no size component.
+
+A BGX block has several children, each representing an Ethernet
+interface.
+
+
+* Ethernet Interface (BGX port) connects to PKI/PKO
+
+Properties:
+
+- compatible: "cavium,octeon-7890-bgx-port": Compatibility with all
+             cn7xxx SOCs.
+
+             "cavium,octeon-7360-xcv": Compatibility with cn73xx SOCs
+             for RGMII.
+
+- reg: The index of the interface within the BGX block.
+
+Optional properties:
+
+- local-mac-address: Mac address for the interface.
+
+- phy-handle: phandle to the phy node connected to the interface.
+
+- phy-mode: described in ethernet.txt.
+
+- fixed-link: described in fixed-link.txt.
+
+Example:
+
+       ethernet-mac-nexus@11800e0000000 {
+               compatible = "cavium,octeon-7890-bgx";
+               reg = <0x00011800 0xe0000000 0x00000000 0x01000000>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               ethernet@0 {
+                       compatible = "cavium,octeon-7360-xcv";
+                       reg = <0>;
+                       local-mac-address = [ 00 01 23 45 67 89 ];
+                       phy-handle = <&phy3>;
+                       phy-mode = "rgmii-rxid"
+               };
+               ethernet@1 {
+                       compatible = "cavium,octeon-7890-bgx-port";
+                       reg = <1>;
+                       local-mac-address = [ 00 01 23 45 67 8a ];
+                       phy-handle = <&phy4>;
+                       phy-mode = "sgmii"
+               };
+       };
-- 
2.14.3

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