diff options
Diffstat (limited to 'Documentation/devicetree/bindings/usb/dwc3.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/dwc3.txt | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index c977a3ba2f35..70876c55a11c 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -4,7 +4,21 @@ DWC3- USB3 CONTROLLER. Complies to the generic USB binding properties as described in 'usb/generic.txt' Required properties: - - compatible: must be "snps,dwc3" + - compatible: must be "snps,dwc3" and (if applicable) may contain a + chip-specific compatible string in front of it to allow dwc3 driver be + able to update cache type configuration accordingly, otherwise + Layerscape SoC will encounter USB init failure when adding property + dma-coherent on device tree. + Example: + * "fsl,ls1012a-dwc3", "snps,dwc3" + * "fsl,ls1021a-dwc3", "snps,dwc3" + * "fsl,ls1028a-dwc3", "snps,dwc3" + * "fsl,ls1043a-dwc3", "snps,dwc3" + * "fsl,ls1046a-dwc3", "snps,dwc3" + * "fsl,ls1088a-dwc3", "snps,dwc3" + * "fsl,ls2088a-dwc3", "snps,dwc3" + * "fsl,lx2160a-dwc3", "snps,dwc3" + - reg : Address and length of the register set for the device - interrupts: Interrupts used by the dwc3 controller. - clock-names: should contain "ref", "bus_early", "suspend" @@ -111,6 +125,10 @@ Optional properties: more than one value, which means undefined length INCR burst type enabled. The values can be 1, 4, 8, 16, 32, 64, 128 and 256. + - snps,host-vbus-glitches: Power off all Root Hub ports immediately after + setting host mode to avoid vbus (negative) glitch happen in later + xhci reset. And the vbus will back to 5V automatically when reset done. + - in addition all properties from usb-xhci.txt from the current directory are supported as well |