[PATCH 7/7] Documentation: devicetree: add ar8xxx binding

[Mathieu Olivari]

Add device-tree binding for ar8xxx switch families.

Signed-off-by: Mathieu Olivari <math...@codeaurora.org>
---
 .../devicetree/bindings/net/dsa/qca-ar8xxx.txt     | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/dsa/qca-ar8xxx.txt

diff --git a/Documentation/devicetree/bindings/net/dsa/qca-ar8xxx.txt 
b/Documentation/devicetree/bindings/net/dsa/qca-ar8xxx.txt
new file mode 100644
index 0000000..f4fd3f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/qca-ar8xxx.txt
@@ -0,0 +1,70 @@
+* Qualcomm Atheros AR8xxx switch family
+
+Required properties:
+
+- compatible: should be "qca,ar8xxx"
+- dsa,mii-bus: phandle to the MDIO bus controller, see dsa/dsa.txt
+- dsa,ethernet: phandle to the CPU network interface controller, see 
dsa/dsa.txt
+- #size-cells: must be 0
+- #address-cells: must be 2, see dsa/dsa.txt
+
+Subnodes:
+
+The integrated switch subnode should be specified according to the binding
+described in dsa/dsa.txt.
+
+Optional properties:
+
+- qca,port6-phy-mode: if specified, the driver will configure Port 6 in the
+  given phy-mode. See Documentation/devicetree/bindings/net/ethernet.txt for
+  the list of valid phy-mode.
+
+- qca,port6-phy-id: if specified, the driver will connect Port 6 to the PHY
+  given as a parameter. In this case, Port6 and the corresponding PHY will be
+  isolated from the rest of the switch. From a system perspective, they will
+  act as a regular PHY.
+
+Example:
+
+       dsa@0 {
+               compatible = "qca,ar8xxx";
+               #address-cells = <2>;
+               #size-cells = <0>;
+
+               dsa,ethernet = <&ethernet0>;
+               dsa,mii-bus = <&mii_bus0>;
+
+               switch@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0 0>;    /* MDIO address 0, switch 0 in tree */
+
+                       qca,port6-phy-mode = "sgmii";
+                       qca,port6-phy-id = <4>;
+
+                       port@0 {
+                               reg = <11>;
+                               label = "cpu";
+                       };
+
+                       port@1 {
+                               reg = <0>;
+                               label = "lan1";
+                       };
+
+                       port@2 {
+                               reg = <1>;
+                               label = "lan2";
+                       };
+
+                       port@3 {
+                               reg = <2>;
+                               label = "lan3";
+                       };
+
+                       port@4 {
+                               reg = <3>;
+                               label = "lan4";
+                       };
+               };
+       };
-- 
2.1.4

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