1Microchip USB 2.0 Hi-Speed Hub Controller
2
3The device node for the configuration of a Microchip USB251x/xBi USB 2.0
4Hi-Speed Controller.
5
6Required properties :
7 - compatible : Should be "microchip,usb251xb" or one of the specific types:
8	"microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",
9	"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi",
10	"microchip,usb2517", "microchip,usb2517i"
11 - reg : I2C address on the selected bus (default is <0x2C>)
12
13Optional properties :
14 - reset-gpios : Should specify the gpio for hub reset
15 - skip-config : Skip Hub configuration, but only send the USB-Attach command
16 - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424)
17 - product-id : Set USB Product ID of the hub (16 bit, default depends on type)
18 - device-id : Set USB Device ID of the hub (16 bit, default is 0x0bb3)
19 - language-id : Set USB Language ID (16 bit, default is 0x0000)
20 - manufacturer : Set USB Manufacturer string (max 31 characters long)
21 - product : Set USB Product string (max 31 characters long)
22 - serial : Set USB Serial string (max 31 characters long)
23 - {bus,self}-powered : selects between self- and bus-powered operation
24	(boolean, default is self-powered)
25 - disable-hi-speed : disable USB Hi-Speed support (boolean)
26 - {multi,single}-tt : selects between multi- and single-transaction-translator
27	(boolean, default is multi-tt)
28 - disable-eop : disable End of Packet generation in full-speed mode (boolean)
29 - {ganged,individual}-sensing : select over-current sense type in self-powered
30	mode (boolean, default is individual)
31 - {ganged,individual}-port-switching : select port power switching mode
32	(boolean, default is individual)
33 - dynamic-power-switching : enable auto-switching from self- to bus-powered
34	operation if the local power source is removed or unavailable (boolean)
35 - oc-delay-us : Delay time (in microseconds) for filtering the over-current
36	sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If
37	an invalid value is given, the default is used instead.
38 - compound-device : indicate the hub is part of a compound device (boolean)
39 - port-mapping-mode : enable port mapping mode (boolean)
40 - led-{usb,speed}-mode : led usb/speed indication mode selection
41	(boolean, default is speed mode)
42 - string-support : enable string descriptor support (required for manufacturer,
43	product and serial string configuration)
44 - non-removable-ports : Should specify the ports which have a non-removable
45	device connected.
46 - sp-disabled-ports : Specifies the ports which will be self-power disabled
47 - bp-disabled-ports : Specifies the ports which will be bus-power disabled
48 - sp-max-total-current-microamp: Specifies max current consumed by the hub
49	from VBUS when operating in self-powered hub. It includes the hub
50	silicon along with all associated circuitry including a permanently
51	attached peripheral (range: 0 - 100000 uA, default 1000 uA)
52 - bp-max-total-current-microamp: Specifies max current consumed by the hub
53	from VBUS when operating in self-powered hub. It includes the hub
54	silicon along with all associated circuitry including a permanently
55	attached peripheral (range: 0 - 510000 uA, default 100000 uA)
56 - sp-max-removable-current-microamp: Specifies max current consumed by the hub
57	from VBUS when operating in self-powered hub. It includes the hub
58	silicon along with all associated circuitry excluding a permanently
59	attached peripheral (range: 0 - 100000 uA, default 1000 uA)
60 - bp-max-removable-current-microamp: Specifies max current consumed by the hub
61	from VBUS when operating in self-powered hub. It includes the hub
62	silicon along with all associated circuitry excluding a permanently
63	attached peripheral (range: 0 - 510000 uA, default 100000 uA)
64 - power-on-time-ms : Specifies the time it takes from the time the host
65	initiates the power-on sequence to a port until the port has adequate
66	power. The value is given in ms in a 0 - 510 range (default is 100ms).
67
68Examples:
69	usb2512b@2c {
70		compatible = "microchip,usb2512b";
71		reg = <0x2c>;
72		reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
73	};
74
75	usb2514b@2c {
76		compatible = "microchip,usb2514b";
77		reg = <0x2c>;
78		vendor-id = /bits/ 16 <0x0000>;
79		product-id = /bits/ 16 <0x0000>;
80		string-support;
81		manufacturer = "Foo";
82		product = "Foo-Bar";
83		serial = "1234567890A";
84	};
85