--- zzzz-none-000/linux-4.4.271/Documentation/devicetree/bindings/usb/usb-ehci.txt	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/Documentation/devicetree/bindings/usb/usb-ehci.txt	2023-04-19 10:22:27.000000000 +0000
@@ -19,6 +19,10 @@
  - phys : phandle + phy specifier pair
  - phy-names : "usb"
  - resets : phandle + reset specifier pair
+ - qca_force_host_mode: Set, if host mode to be forced for ATH79 SoCs
+ - qca_force_16bit_ptw: Set, if 16bit ptw to be forced for ATH79 SoCs
+ - caps-offset: Specify the caps offset
+
 
 Example (Sequoia 440EPx):
     ehci@e0000300 {
@@ -38,3 +42,17 @@
 	   phys = <&usbphy 1>;
 	   phy-names = "usb";
    };
+
+Example (Qualcomm Atheros ATH79 SoC)
+
+   ehci0: usb@1b000000 {
+	   compatible = "qca,ath79-ehci", "qca,ap135-ehci", qca,ap137-ehci", "qca,ap147-ehci";
+	   reg = <0x1b000000 0x200>;
+	   interrupt-parent = <&ip3_int>;
+	   interrupts = <0>;
+	   has-transaction-translator;
+	   qca_force_host_mode;
+	   qca_force_16bit_ptw;
+	   caps-offset = <0x100>;
+	   status = "okay";
+   };