Add basic documentation and example.
Signed-off-by: Kurt Kanzenbach <kurt@xxxxxxxxxxxxx>
---
.../devicetree/bindings/net/dsa/hellcreek.txt | 72 +++++++++++++++++++
1 file changed, 72 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/dsa/hellcreek.txt
diff --git a/Documentation/devicetree/bindings/net/dsa/hellcreek.txt b/Documentation/devicetree/bindings/net/dsa/hellcreek.txt
new file mode 100644
index 000000000000..9ea6494dc554
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/hellcreek.txt
@@ -0,0 +1,72 @@
+Hirschmann hellcreek switch driver
+==================================
+
+Required properties:
+
+- compatible:
+ Must be one of:
+ - "hirschmann,hellcreek"
+
+See Documentation/devicetree/bindings/net/dsa/dsa.txt for the list of standard
+DSA required and optional properties.
+
+Example
+-------
+
+Ethernet switch connected memory mapped to the host, CPU port wired to gmac0:
+
+soc {
+ switch0: switch@0xff240000 {
+ compatible = "hirschmann,hellcreek";
+ status = "okay";
+ reg = <0xff240000 0x1000 /* TSN base */
+ 0xff250000 0x1000>; /* PTP base */
+ dsa,member = <0 0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "cpu";
+ ethernet = <&gmac0>;
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan0";
+ phy-handle = <&phy1>;
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan1";
+ phy-handle = <&phy2>;
+ };
+ };
+ };
+};
+
+&gmac0 {
+ status = "okay";
+ phy-mode = "mii";
+
+ fixed-link {
+ speed = <100>;
+ full-duplex;
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "snps,dwmac-mdio";
+
+ phy1: ethernet-phy@1 {
+ reg = <1>;
+ };
+ phy2: ethernet-phy@2 {
+ reg = <2>;
+ };
+ };
+};
--
2.20.1
