From: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@xxxxxxxxxxxx>
Add documentation for USB3 PHY available in NS2 SoC
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@xxxxxxxxxxxx>
Signed-off-by: Jon Mason <jon.mason@xxxxxxxxxxxx>
---
.../devicetree/bindings/phy/brcm,ns2-usb3-phy.txt | 48 ++++++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/brcm,ns2-usb3-phy.txt
diff --git a/Documentation/devicetree/bindings/phy/brcm,ns2-usb3-phy.txt b/Documentation/devicetree/bindings/phy/brcm,ns2-usb3-phy.txt
new file mode 100644
index 000000000000..b1c058c37d54
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,ns2-usb3-phy.txt
@@ -0,0 +1,48 @@
+Broadcom USB3 dual port phy for Northstar2 SoC
+This is a child bus node of "brcm,mdio-mux-iproc" node.
+
+Required mdio bus properties:
+- reg: MDIO Bus number for the MDIO interface
+- #address-cells: must be 1
+- #size-cells: must be 0
+
+Required PHY properties:
+- compatible: should be "brcm,ns2-usb3-phy"
+- reg: MDIO Phy ID for the MDIO interface
+- #phy-cells: must be 0
+- #address-cells: must be 1
+- #size-cells: must be 0
+
+Sub-nodes:
+ Each port's PHY should be represented as a sub-node.
+
+Sub-nodes required properties:
+ - reg: the PHY number
+ - phy-cells: from the generic PHY bindings, must be 0
+
+Example:
+
+mdio@1 {
+ reg = <0x1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb3_phy: usb3_phy@0 {
+ compatible = "brcm,ns2-usb3-phy";
+ reg = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb3_phy0: usb3_phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+
+ usb3_phy1: usb_phy@1 {
+ reg = <1>;
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+ };
+};
--
2.7.4
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