0001 Microchip USB 2.0 Hi-Speed Hub Controller
0002
0003 The device node for the configuration of a Microchip USB251x/xBi USB 2.0
0004 Hi-Speed Controller.
0005
0006 Required properties :
0007 - compatible : Should be "microchip,usb251xb" or one of the specific types:
0008 "microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",
0009 "microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi",
0010 "microchip,usb2517", "microchip,usb2517i", "microchip,usb2422"
0011 - reg : I2C address on the selected bus (default is <0x2C>)
0012
0013 Optional properties :
0014 - reset-gpios : Should specify the gpio for hub reset
0015 - vdd-supply : Should specify the phandle to the regulator supplying vdd
0016 - skip-config : Skip Hub configuration, but only send the USB-Attach command
0017 - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424)
0018 - product-id : Set USB Product ID of the hub (16 bit, default depends on type)
0019 - device-id : Set USB Device ID of the hub (16 bit, default is 0x0bb3)
0020 - language-id : Set USB Language ID (16 bit, default is 0x0000)
0021 - manufacturer : Set USB Manufacturer string (max 31 characters long)
0022 - product : Set USB Product string (max 31 characters long)
0023 - serial : Set USB Serial string (max 31 characters long)
0024 - {bus,self}-powered : selects between self- and bus-powered operation
0025 (boolean, default is self-powered)
0026 - disable-hi-speed : disable USB Hi-Speed support (boolean)
0027 - {multi,single}-tt : selects between multi- and single-transaction-translator
0028 (boolean, default is multi-tt)
0029 - disable-eop : disable End of Packet generation in full-speed mode (boolean)
0030 - {ganged,individual}-sensing : select over-current sense type in self-powered
0031 mode (boolean, default is individual)
0032 - {ganged,individual}-port-switching : select port power switching mode
0033 (boolean, default is individual)
0034 - dynamic-power-switching : enable auto-switching from self- to bus-powered
0035 operation if the local power source is removed or unavailable (boolean)
0036 - oc-delay-us : Delay time (in microseconds) for filtering the over-current
0037 sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If
0038 an invalid value is given, the default is used instead.
0039 - compound-device : indicate the hub is part of a compound device (boolean)
0040 - port-mapping-mode : enable port mapping mode (boolean)
0041 - led-{usb,speed}-mode : led usb/speed indication mode selection
0042 (boolean, default is speed mode)
0043 - string-support : enable string descriptor support (required for manufacturer,
0044 product and serial string configuration)
0045 - non-removable-ports : Should specify the ports which have a non-removable
0046 device connected.
0047 - sp-disabled-ports : Specifies the ports which will be self-power disabled
0048 - bp-disabled-ports : Specifies the ports which will be bus-power disabled
0049 - sp-max-total-current-microamp: Specifies max current consumed by the hub
0050 from VBUS when operating in self-powered hub. It includes the hub
0051 silicon along with all associated circuitry including a permanently
0052 attached peripheral (range: 0 - 100000 uA, default 1000 uA)
0053 - bp-max-total-current-microamp: Specifies max current consumed by the hub
0054 from VBUS when operating in self-powered hub. It includes the hub
0055 silicon along with all associated circuitry including a permanently
0056 attached peripheral (range: 0 - 510000 uA, default 100000 uA)
0057 - sp-max-removable-current-microamp: Specifies max current consumed by the hub
0058 from VBUS when operating in self-powered hub. It includes the hub
0059 silicon along with all associated circuitry excluding a permanently
0060 attached peripheral (range: 0 - 100000 uA, default 1000 uA)
0061 - bp-max-removable-current-microamp: Specifies max current consumed by the hub
0062 from VBUS when operating in self-powered hub. It includes the hub
0063 silicon along with all associated circuitry excluding a permanently
0064 attached peripheral (range: 0 - 510000 uA, default 100000 uA)
0065 - power-on-time-ms : Specifies the time it takes from the time the host
0066 initiates the power-on sequence to a port until the port has adequate
0067 power. The value is given in ms in a 0 - 510 range (default is 100ms).
0068 - swap-dx-lanes : Specifies the ports which will swap the differential-pair
0069 (D+/D-), default is not-swapped.
0070
0071 Examples:
0072 usb2512b@2c {
0073 compatible = "microchip,usb2512b";
0074 reg = <0x2c>;
0075 reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
0076 };
0077
0078 usb2514b@2c {
0079 compatible = "microchip,usb2514b";
0080 reg = <0x2c>;
0081 vendor-id = /bits/ 16 <0x0000>;
0082 product-id = /bits/ 16 <0x0000>;
0083 string-support;
0084 manufacturer = "Foo";
0085 product = "Foo-Bar";
0086 serial = "1234567890A";
0087 /* correct misplaced usb connectors on port 1,2 */
0088 swap-dx-lanes = <1 2>;
0089 };
