new file mode 100644
@@ -0,0 +1,69 @@
+BROADCOM CYGNUS USB PHY
+
+Required Properties:
+ - compatible: brcm,cygnus-usb-phy
+ - reg : usbphy_regs - Base address of phy registers
+ usb2h_idm_regs - Base address of host idm registers
+ usb2d_idm_regs - Base address of device idm registers
+ - phy-cells - must be 1 for each port declared. The node
+ that uses the phy must provide either PHY_CONFIG_DEVICE for device
+ or PHY_CONFIG_HOST for host
+
+NOTE: port 0 and port 1 are host only and port 2 can be configured for host or
+device.
+
+Example of phy :
+ usbphy0: usbphy@0x0301c000 {
+ compatible = "brcm,cygnus-usb-phy";
+ reg = <0x0301c000 0x2000>,
+ <0x18115000 0x1000>,
+ <0x18111000 0x1000>;
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ usbphy0_0: usbphy0@0 {
+ #phy-cells = <1>;
+ reg = <0>;
+ status = "okay";
+ phy-supply = <&vbus_p0>;
+ };
+
+ usbphy0_1: usbphy0@1 {
+ #phy-cells = <1>;
+ reg = <1>;
+ status = "okay";
+ };
+
+ usbphy0_2: usbphy0@2 {
+ #phy-cells = <1>;
+ reg = <2>;
+ status = "okay";
+ phy-supply = <&vbus_p2>;
+ };
+ };
+
+Example of node using the phy:
+
+ /* This nodes declares all three ports as host */
+
+ ehci0: usb@0x18048000 {
+ compatible = "generic-ehci";
+ reg = <0x18048000 0x100>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ phys = <&usbphy0_0 PHY_CONFIG_HOST &usbphy0_1 PHY_CONFIG_HOST &usbphy0_2 PHY_CONFIG_HOST>;
+ status = "okay";
+ };
+
+ /*
+ * This node declares port 2 phy
+ * and configures it for device
+ */
+
+ usbd_udc_dwc1: usbd_udc_dwc@0x1804c000 {
+ compatible = "iproc-udc";
+ reg = <0x1804c000 0x2000>;
+ interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+ phys = <&usbphy0_2 PHY_CONFIG_DEVICE>;
+ phy-names = "usb";
+ };
@@ -15,5 +15,7 @@
#define PHY_TYPE_PCIE 2
#define PHY_TYPE_USB2 3
#define PHY_TYPE_USB3 4
+#define PHY_USB2_CONFIG_HOST 0
+#define PHY_USB2_CONFIG_DEVICE 1
#endif /* _DT_BINDINGS_PHY */