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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /Documentation/devicetree/bindings/usb/omap-usb.txt
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+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;
+};
+