mirror of
https://github.com/Fishwaldo/u-boot.git
synced 2025-03-18 21:21:37 +00:00
dt-binding: usb: add bindings for some common properties
Add bindings for common properties, include maximum-speed, dr_mode and phy_type Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
parent
a93cff24b1
commit
8faef3c756
1 changed files with 31 additions and 0 deletions
31
doc/device-tree-bindings/usb/generic.txt
Normal file
31
doc/device-tree-bindings/usb/generic.txt
Normal file
|
@ -0,0 +1,31 @@
|
|||
Generic USB Properties
|
||||
|
||||
Optional properties:
|
||||
- maximum-speed: tells USB controllers we want to work up to a certain
|
||||
speed. Valid arguments are "super-speed-plus",
|
||||
"super-speed", "high-speed", "full-speed" and
|
||||
"low-speed". In case this isn't passed via DT, USB
|
||||
controllers should default to their maximum HW
|
||||
capability.
|
||||
- dr_mode: tells Dual-Role USB controllers that we want to work on a
|
||||
particular mode. Valid arguments are "host",
|
||||
"peripheral" and "otg". In case this attribute isn't
|
||||
passed via DT, USB DRD controllers should default to
|
||||
OTG.
|
||||
- phy_type: tells USB controllers that we want to configure the core to support
|
||||
a UTMI+ PHY with an 8- or 16-bit interface if UTMI+ is
|
||||
selected. Valid arguments are "utmi" and "utmi_wide".
|
||||
In case this isn't passed via DT, USB controllers should
|
||||
default to HW capability.
|
||||
|
||||
This is an attribute to a USB controller such as:
|
||||
|
||||
dwc3@4a030000 {
|
||||
compatible = "synopsys,dwc3";
|
||||
reg = <0x4a030000 0xcfff>;
|
||||
interrupts = <0 92 4>
|
||||
usb-phy = <&usb2_phy>, <&usb3,phy>;
|
||||
maximum-speed = "super-speed";
|
||||
dr_mode = "otg";
|
||||
phy_type = "utmi_wide";
|
||||
};
|
Loading…
Add table
Reference in a new issue