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
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/snps,dwc3.yaml
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