Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / usb / omap-usb.txt

diff --git a/kernel/Documentation/devicetree/bindings/usb/omap-usb.txt b/kernel/Documentation/devicetree/bindings/usb/omap-usb.txt
new file mode 100644 (file)
index 0000000..38d9bb8
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -0,0 +1,80 @@
+OMAP GLUE AND OTHER OMAP SPECIFIC COMPONENTS
+
+OMAP MUSB GLUE
+ - compatible : Should be "ti,omap4-musb" or "ti,omap3-musb"
+ - ti,hwmods : must be "usb_otg_hs"
+ - multipoint : Should be "1" indicating the musb controller supports
+   multipoint. This is a MUSB configuration-specific setting.
+ - num-eps : Specifies the number of endpoints. This is also a
+   MUSB configuration-specific setting. Should be set to "16"
+ - ram-bits : Specifies the ram address size. Should be set to "12"
+ - interface-type : This is a board specific setting to describe the type of
+   interface between the controller and the phy. It should be "0" or "1"
+   specifying ULPI and UTMI respectively.
+ - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
+   represents PERIPHERAL.
+ - power : Should be "50". This signifies the controller can supply up to
+   100mA when operating in host mode.
+ - usb-phy : the phandle for the PHY device
+ - phys : the phandle for the PHY device (used by generic PHY framework)
+ - phy-names : the names of the PHY corresponding to the PHYs present in the
+   *phy* phandle.
+
+Optional properties:
+ - ctrl-module : phandle of the control module this glue uses to write to
+   mailbox
+
+SOC specific device node entry
+usb_otg_hs: usb_otg_hs@4a0ab000 {
+       compatible = "ti,omap4-musb";
+       ti,hwmods = "usb_otg_hs";
+       multipoint = <1>;
+       num-eps = <16>;
+       ram-bits = <12>;
+       ctrl-module = <&omap_control_usb>;
+       phys = <&usb2_phy>;
+       phy-names = "usb2-phy";
+};
+
+Board specific device node entry
+&usb_otg_hs {
+       interface-type = <1>;
+       mode = <3>;
+       power = <50>;
+};
+
+OMAP DWC3 GLUE
+ - compatible : Should be
+       * "ti,dwc3" for OMAP5 and DRA7
+       * "ti,am437x-dwc3" for AM437x
+ - ti,hwmods : Should be "usb_otg_ss"
+ - reg : Address and length of the register set for the device.
+ - interrupts : The irq number of this device that is used to interrupt the
+   MPU
+ - #address-cells, #size-cells : Must be present if the device has sub-nodes
+ - utmi-mode : controls the source of UTMI/PIPE status for VBUS and OTG ID.
+   It should be set to "1" for HW mode and "2" for SW mode.
+ - ranges: the child address space are mapped 1:1 onto the parent address space
+
+Optional Properties:
+ - extcon : phandle for the extcon device omap dwc3 uses to detect
+   connect/disconnect events.
+ - vbus-supply : phandle to the regulator device tree node if needed.
+
+Sub-nodes:
+The dwc3 core should be added as subnode to omap dwc3 glue.
+- dwc3 :
+   The binding details of dwc3 can be found in:
+   Documentation/devicetree/bindings/usb/dwc3.txt
+
+omap_dwc3 {
+       compatible = "ti,dwc3";
+       ti,hwmods = "usb_otg_ss";
+       reg = <0x4a020000 0x1ff>;
+       interrupts = <0 93 4>;
+       #address-cells = <1>;
+       #size-cells = <1>;
+       utmi-mode = <2>;
+       ranges;
+};
+