4 - maximum-speed: tells USB controllers we want to work up to a certain
5 speed. Valid arguments are "super-speed-plus",
6 "super-speed", "high-speed", "full-speed" and
7 "low-speed". In case this isn't passed via DT, USB
8 controllers should default to their maximum HW
10 - dr_mode: tells Dual-Role USB controllers that we want to work on a
11 particular mode. Valid arguments are "host",
12 "peripheral" and "otg". In case this attribute isn't
13 passed via DT, USB DRD controllers should default to
15 - phy_type: tells USB controllers that we want to configure the core to support
16 a UTMI+ PHY with an 8- or 16-bit interface if UTMI+ is
17 selected. Valid arguments are "utmi" and "utmi_wide".
18 In case this isn't passed via DT, USB controllers should
19 default to HW capability.
20 - otg-rev: tells usb driver the release number of the OTG and EH supplement
21 with which the device and its descriptors are compliant,
22 in binary-coded decimal (i.e. 2.0 is 0200H). This
23 property is used if any real OTG features(HNP/SRP/ADP)
24 is enabled, if ADP is required, otg-rev should be
26 - companion: phandle of a companion
27 - hnp-disable: tells OTG controllers we want to disable OTG HNP, normally HNP
28 is the basic function of real OTG except you want it
29 to be a srp-capable only B device.
30 - srp-disable: tells OTG controllers we want to disable OTG SRP, SRP is
31 optional for OTG device.
32 - adp-disable: tells OTG controllers we want to disable OTG ADP, ADP is
33 optional for OTG device.
34 - usb-role-switch: boolean, indicates that the device is capable of assigning
35 the USB data role (USB host or USB device) for a given
36 USB connector, such as Type-C, Type-B(micro).
37 see connector/usb-connector.yaml.
38 - role-switch-default-mode: indicating if usb-role-switch is enabled, the
39 device default operation mode of controller while usb
40 role is USB_ROLE_NONE. Valid arguments are "host" and
41 "peripheral". Defaults to "peripheral" if not
45 This is an attribute to a USB controller such as:
48 compatible = "synopsys,dwc3";
49 reg = <0x4a030000 0xcfff>;
51 usb-phy = <&usb2_phy>, <&usb3,phy>;
52 maximum-speed = "super-speed";
54 phy_type = "utmi_wide";