| developer | fc6be59 | 2020-10-14 15:08:25 +0800 | [diff] [blame] | 1 | Generic USB Properties |
| 2 | |
| 3 | Optional properties: |
| 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 |
| 9 | capability. |
| 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. |
| 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 | |
| 21 | This is an attribute to a USB controller such as: |
| 22 | |
| 23 | dwc3@4a030000 { |
| 24 | compatible = "synopsys,dwc3"; |
| 25 | reg = <0x4a030000 0xcfff>; |
| 26 | interrupts = <0 92 4> |
| 27 | usb-phy = <&usb2_phy>, <&usb3,phy>; |
| 28 | maximum-speed = "super-speed"; |
| 29 | dr_mode = "otg"; |
| 30 | phy_type = "utmi_wide"; |
| 31 | }; |