usb251xb.txt (4627B)
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", "microchip,usb2422" 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 - vdd-supply : Should specify the phandle to the regulator supplying vdd 16 - skip-config : Skip Hub configuration, but only send the USB-Attach command 17 - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424) 18 - product-id : Set USB Product ID of the hub (16 bit, default depends on type) 19 - device-id : Set USB Device ID of the hub (16 bit, default is 0x0bb3) 20 - language-id : Set USB Language ID (16 bit, default is 0x0000) 21 - manufacturer : Set USB Manufacturer string (max 31 characters long) 22 - product : Set USB Product string (max 31 characters long) 23 - serial : Set USB Serial string (max 31 characters long) 24 - {bus,self}-powered : selects between self- and bus-powered operation 25 (boolean, default is self-powered) 26 - disable-hi-speed : disable USB Hi-Speed support (boolean) 27 - {multi,single}-tt : selects between multi- and single-transaction-translator 28 (boolean, default is multi-tt) 29 - disable-eop : disable End of Packet generation in full-speed mode (boolean) 30 - {ganged,individual}-sensing : select over-current sense type in self-powered 31 mode (boolean, default is individual) 32 - {ganged,individual}-port-switching : select port power switching mode 33 (boolean, default is individual) 34 - dynamic-power-switching : enable auto-switching from self- to bus-powered 35 operation if the local power source is removed or unavailable (boolean) 36 - oc-delay-us : Delay time (in microseconds) for filtering the over-current 37 sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If 38 an invalid value is given, the default is used instead. 39 - compound-device : indicate the hub is part of a compound device (boolean) 40 - port-mapping-mode : enable port mapping mode (boolean) 41 - led-{usb,speed}-mode : led usb/speed indication mode selection 42 (boolean, default is speed mode) 43 - string-support : enable string descriptor support (required for manufacturer, 44 product and serial string configuration) 45 - non-removable-ports : Should specify the ports which have a non-removable 46 device connected. 47 - sp-disabled-ports : Specifies the ports which will be self-power disabled 48 - bp-disabled-ports : Specifies the ports which will be bus-power disabled 49 - sp-max-total-current-microamp: Specifies max current consumed by the hub 50 from VBUS when operating in self-powered hub. It includes the hub 51 silicon along with all associated circuitry including a permanently 52 attached peripheral (range: 0 - 100000 uA, default 1000 uA) 53 - bp-max-total-current-microamp: Specifies max current consumed by the hub 54 from VBUS when operating in self-powered hub. It includes the hub 55 silicon along with all associated circuitry including a permanently 56 attached peripheral (range: 0 - 510000 uA, default 100000 uA) 57 - sp-max-removable-current-microamp: Specifies max current consumed by the hub 58 from VBUS when operating in self-powered hub. It includes the hub 59 silicon along with all associated circuitry excluding a permanently 60 attached peripheral (range: 0 - 100000 uA, default 1000 uA) 61 - bp-max-removable-current-microamp: Specifies max current consumed by the hub 62 from VBUS when operating in self-powered hub. It includes the hub 63 silicon along with all associated circuitry excluding a permanently 64 attached peripheral (range: 0 - 510000 uA, default 100000 uA) 65 - power-on-time-ms : Specifies the time it takes from the time the host 66 initiates the power-on sequence to a port until the port has adequate 67 power. The value is given in ms in a 0 - 510 range (default is 100ms). 68 - swap-dx-lanes : Specifies the ports which will swap the differential-pair 69 (D+/D-), default is not-swapped. 70 71Examples: 72 usb2512b@2c { 73 compatible = "microchip,usb2512b"; 74 reg = <0x2c>; 75 reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>; 76 }; 77 78 usb2514b@2c { 79 compatible = "microchip,usb2514b"; 80 reg = <0x2c>; 81 vendor-id = /bits/ 16 <0x0000>; 82 product-id = /bits/ 16 <0x0000>; 83 string-support; 84 manufacturer = "Foo"; 85 product = "Foo-Bar"; 86 serial = "1234567890A"; 87 /* correct misplaced usb connectors on port 1,2 */ 88 swap-dx-lanes = <1 2>; 89 };