xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/usb/usb-xhci.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunUSB xHCI controllers
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun  - compatible: should be one or more of
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun    - "generic-xhci" for generic XHCI device
7*4882a593Smuzhiyun    - "marvell,armada3700-xhci" for Armada 37xx SoCs
8*4882a593Smuzhiyun    - "marvell,armada-375-xhci" for Armada 375 SoCs
9*4882a593Smuzhiyun    - "marvell,armada-380-xhci" for Armada 38x SoCs
10*4882a593Smuzhiyun    - "brcm,bcm7445-xhci" for Broadcom STB SoCs with XHCI
11*4882a593Smuzhiyun    - "xhci-platform" (deprecated)
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun    When compatible with the generic version, nodes must list the
14*4882a593Smuzhiyun    SoC-specific version corresponding to the platform first
15*4882a593Smuzhiyun    followed by the generic version.
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun  - reg: should contain address and length of the standard XHCI
18*4882a593Smuzhiyun    register set for the device.
19*4882a593Smuzhiyun  - interrupts: one XHCI interrupt should be described here.
20*4882a593Smuzhiyun
21*4882a593SmuzhiyunOptional properties:
22*4882a593Smuzhiyun  - clocks: reference to the clocks
23*4882a593Smuzhiyun  - clock-names: mandatory if there is a second clock, in this case
24*4882a593Smuzhiyun    the name must be "core" for the first clock and "reg" for the
25*4882a593Smuzhiyun    second one
26*4882a593Smuzhiyun  - usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
27*4882a593Smuzhiyun  - usb3-lpm-capable: determines if platform is USB3 LPM capable
28*4882a593Smuzhiyun  - quirk-broken-port-ped: set if the controller has broken port disable mechanism
29*4882a593Smuzhiyun  - quirk-skip-phy-init: indicate that do not manage the PHY state in the HCD core
30*4882a593Smuzhiyun    and handle this in the controller's driver.
31*4882a593Smuzhiyun  - imod-interval-ns: default interrupt moderation interval is 5000ns
32*4882a593Smuzhiyun  - phys : see usb-hcd.yaml in the current directory
33*4882a593Smuzhiyun  - offload: supporting USB offload feature, 0: disabled, 1: audio
34*4882a593Smuzhiyun
35*4882a593Smuzhiyunadditionally the properties from usb-hcd.yaml (in the current directory) are
36*4882a593Smuzhiyunsupported.
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun
39*4882a593SmuzhiyunExample:
40*4882a593Smuzhiyun	usb@f0931000 {
41*4882a593Smuzhiyun		compatible = "generic-xhci";
42*4882a593Smuzhiyun		reg = <0xf0931000 0x8c8>;
43*4882a593Smuzhiyun		interrupts = <0x0 0x4e 0x0>;
44*4882a593Smuzhiyun	};
45