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+MSM SoC HSUSB controllers
+
+EHCI
+
+Required properties:
+- compatible: Should contain "qcom,ehci-host"
+- regs: offset and length of the register set in the memory map
+- usb-phy: phandle for the PHY device
+
+Example EHCI controller device node:
+
+ ehci: ehci@f9a55000 {
+ compatible = "qcom,ehci-host";
+ reg = <0xf9a55000 0x400>;
+ usb-phy = <&usb_otg>;
+ };
+
+USB PHY with optional OTG:
+
+Required properties:
+- compatible: Should contain:
+ "qcom,usb-otg-ci" for chipsets with ChipIdea 45nm PHY
+ "qcom,usb-otg-snps" for chipsets with Synopsys 28nm PHY
+
+- regs: Offset and length of the register set in the memory map
+- interrupts: interrupt-specifier for the OTG interrupt.
+
+- clocks: A list of phandle + clock-specifier pairs for the
+ clocks listed in clock-names
+- clock-names: Should contain the following:
+ "phy" USB PHY reference clock
+ "core" Protocol engine clock
+ "iface" Interface bus clock
+ "alt_core" Protocol engine clock for targets with asynchronous
+ reset methodology. (optional)
+
+- vdccx-supply: phandle to the regulator for the vdd supply for
+ digital circuit operation.
+- v1p8-supply: phandle to the regulator for the 1.8V supply
+- v3p3-supply: phandle to the regulator for the 3.3V supply
+
+- resets: A list of phandle + reset-specifier pairs for the
+ resets listed in reset-names
+- reset-names: Should contain the following:
+ "phy" USB PHY controller reset
+ "link" USB LINK controller reset
+
+- qcom,otg-control: OTG control (VBUS and ID notifications) can be one of
+ 1 - PHY control
+ 2 - PMIC control
+
+Optional properties:
+- dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg"
+
+- switch-gpio: A phandle + gpio-specifier pair. Some boards are using Dual
+ SPDT USB Switch, witch is controlled by GPIO to de/multiplex
+ D+/D- USB lines between connectors.
+
+- qcom,phy-init-sequence: PHY configuration sequence values. This is related to Device
+ Mode Eye Diagram test. Start address at which these values will be
+ written is ULPI_EXT_VENDOR_SPECIFIC. Value of -1 is reserved as
+ "do not overwrite default value at this address".
+ For example: qcom,phy-init-sequence = < -1 0x63 >;
+ Will update only value at address ULPI_EXT_VENDOR_SPECIFIC + 1.
+
+- qcom,phy-num: Select number of pyco-phy to use, can be one of
+ 0 - PHY one, default
+ 1 - Second PHY
+ Some platforms may have configuration to allow USB
+ controller work with any of the two HSPHYs present.
+
+- qcom,vdd-levels: This property must be a list of three integer values
+ (no, min, max) where each value represents either a voltage
+ in microvolts or a value corresponding to voltage corner.
+
+- qcom,manual-pullup: If present, vbus is not routed to USB controller/phy
+ and controller driver therefore enables pull-up explicitly
+ before starting controller using usbcmd run/stop bit.
+
+- extcon: phandles to external connector devices. First phandle
+ should point to external connector, which provide "USB"
+ cable events, the second should point to external connector
+ device, which provide "USB-HOST" cable events. If one of
+ the external connector devices is not required empty <0>
+ phandle should be specified.
+
+Example HSUSB OTG controller device node:
+
+ usb@f9a55000 {
+ compatible = "qcom,usb-otg-snps";
+ reg = <0xf9a55000 0x400>;
+ interrupts = <0 134 0>;
+ dr_mode = "peripheral";
+
+ clocks = <&gcc GCC_XO_CLK>, <&gcc GCC_USB_HS_SYSTEM_CLK>,
+ <&gcc GCC_USB_HS_AHB_CLK>;
+
+ clock-names = "phy", "core", "iface";
+
+ vddcx-supply = <&pm8841_s2_corner>;
+ v1p8-supply = <&pm8941_l6>;
+ v3p3-supply = <&pm8941_l24>;
+
+ resets = <&gcc GCC_USB2A_PHY_BCR>, <&gcc GCC_USB_HS_BCR>;
+ reset-names = "phy", "link";
+
+ qcom,otg-control = <1>;
+ qcom,phy-init-sequence = < -1 0x63 >;
+ qcom,vdd-levels = <1 5 7>;
+ };