1OCTEON/OCTEON+ USB BLOCK
2
31) Main node
4
5   Required properties:
6
7   - compatible: must be "cavium,octeon-5750-usbn"
8
9   - reg: specifies the physical base address of the USBN block and
10     the length of the memory mapped region.
11
12   - #address-cells: specifies the number of cells needed to encode an
13     address. The value must be 2.
14
15   - #size-cells: specifies the number of cells used to represent the size
16     of an address. The value must be 2.
17
18   - ranges: specifies the translation between child address space and parent
19     address space.
20
21   - clock-frequency: speed of the USB reference clock. Allowed values are
22     12000000, 24000000 or 48000000.
23
24   - cavium,refclk-type: type of the USB reference clock. Allowed values are
25     "crystal" or "external".
26
27   - refclk-frequency: deprecated, use "clock-frequency".
28
29   - refclk-type: deprecated, use "cavium,refclk-type".
30
312) Child node
32
33   The main node must have one child node which describes the built-in
34   USB controller.
35
36   Required properties:
37
38   - compatible: must be "cavium,octeon-5750-usbc"
39
40   - reg: specifies the physical base address of the USBC block and
41     the length of the memory mapped region.
42
43   - interrupts: specifies the interrupt number for the USB controller.
44
453) Example:
46
47	usbn: usbn@1180068000000 {
48		compatible = "cavium,octeon-5750-usbn";
49		reg = <0x11800 0x68000000 0x0 0x1000>;
50		ranges; /* Direct mapping */
51		#address-cells = <2>;
52		#size-cells = <2>;
53		clock-frequency = <12000000>;
54		cavium,refclk-type = "crystal";
55
56		usbc@16f0010000000 {
57			compatible = "cavium,octeon-5750-usbc";
58			reg = <0x16f00 0x10000000 0x0 0x80000>;
59			interrupts = <0 56>;
60		};
61	};
62
63