tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1USB xHCI controllers
2
3Required properties:
4 - compatible: should be one or more of
5
6 - "generic-xhci" for generic XHCI device
7 - "marvell,armada3700-xhci" for Armada 37xx SoCs
8 - "marvell,armada-375-xhci" for Armada 375 SoCs
9 - "marvell,armada-380-xhci" for Armada 38x SoCs
10 - "renesas,xhci-r8a7743" for r8a7743 SoC
11 - "renesas,xhci-r8a7744" for r8a7744 SoC
12 - "renesas,xhci-r8a774a1" for r8a774a1 SoC
13 - "renesas,xhci-r8a774b1" for r8a774b1 SoC
14 - "renesas,xhci-r8a774c0" for r8a774c0 SoC
15 - "renesas,xhci-r8a7790" for r8a7790 SoC
16 - "renesas,xhci-r8a7791" for r8a7791 SoC
17 - "renesas,xhci-r8a7793" for r8a7793 SoC
18 - "renesas,xhci-r8a7795" for r8a7795 SoC
19 - "renesas,xhci-r8a7796" for r8a77960 SoC
20 - "renesas,xhci-r8a77961" for r8a77961 SoC
21 - "renesas,xhci-r8a77965" for r8a77965 SoC
22 - "renesas,xhci-r8a77990" for r8a77990 SoC
23 - "renesas,rcar-gen2-xhci" for a generic R-Car Gen2 or RZ/G1 compatible
24 device
25 - "renesas,rcar-gen3-xhci" for a generic R-Car Gen3 or RZ/G2 compatible
26 device
27 - "xhci-platform" (deprecated)
28
29 When compatible with the generic version, nodes must list the
30 SoC-specific version corresponding to the platform first
31 followed by the generic version.
32
33 - reg: should contain address and length of the standard XHCI
34 register set for the device.
35 - interrupts: one XHCI interrupt should be described here.
36
37Optional properties:
38 - clocks: reference to the clocks
39 - clock-names: mandatory if there is a second clock, in this case
40 the name must be "core" for the first clock and "reg" for the
41 second one
42 - usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
43 - usb3-lpm-capable: determines if platform is USB3 LPM capable
44 - quirk-broken-port-ped: set if the controller has broken port disable mechanism
45 - imod-interval-ns: default interrupt moderation interval is 5000ns
46 - phys : see usb-hcd.yaml in the current directory
47
48additionally the properties from usb-hcd.yaml (in the current directory) are
49supported.
50
51
52Example:
53 usb@f0931000 {
54 compatible = "generic-xhci";
55 reg = <0xf0931000 0x8c8>;
56 interrupts = <0x0 0x4e 0x0>;
57 };