Commit | Line | Data |
---|---|---|
1494a1f6 FB |
1 | Generic USB Properties |
2 | ||
3 | Optional properties: | |
4 | - maximum-speed: tells USB controllers we want to work up to a certain | |
1eb69bfd JK |
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 | |
9 | capability. | |
1494a1f6 FB |
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 | |
14 | OTG. | |
32f2ed86 WW |
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. | |
b5513ded LJ |
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 | |
25 | 0x0200 or above. | |
5095cb89 | 26 | - companion: phandle of a companion |
b5513ded LJ |
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. | |
451d15a1 CY |
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.txt. | |
dd2d0d1f JS |
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 | |
42 | specified. | |
43 | ||
1494a1f6 FB |
44 | |
45 | This is an attribute to a USB controller such as: | |
46 | ||
47 | dwc3@4a030000 { | |
48 | compatible = "synopsys,dwc3"; | |
49 | reg = <0x4a030000 0xcfff>; | |
50 | interrupts = <0 92 4> | |
51 | usb-phy = <&usb2_phy>, <&usb3,phy>; | |
52 | maximum-speed = "super-speed"; | |
53 | dr_mode = "otg"; | |
32f2ed86 | 54 | phy_type = "utmi_wide"; |
b5513ded LJ |
55 | otg-rev = <0x0200>; |
56 | adp-disable; | |
1494a1f6 | 57 | }; |