diff options
Diffstat (limited to 'Documentation/devicetree/bindings/usb/usb251xb.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/usb251xb.txt | 46 |
1 files changed, 32 insertions, 14 deletions
diff --git a/Documentation/devicetree/bindings/usb/usb251xb.txt b/Documentation/devicetree/bindings/usb/usb251xb.txt index 3957d4edaa74..168ff819e827 100644 --- a/Documentation/devicetree/bindings/usb/usb251xb.txt +++ b/Documentation/devicetree/bindings/usb/usb251xb.txt @@ -1,16 +1,17 @@ Microchip USB 2.0 Hi-Speed Hub Controller -The device node for the configuration of a Microchip USB251xB/xBi USB 2.0 +The device node for the configuration of a Microchip USB251x/xBi USB 2.0 Hi-Speed Controller. Required properties : - compatible : Should be "microchip,usb251xb" or one of the specific types: "microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b", - "microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi" - - reset-gpios : Should specify the gpio for hub reset + "microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi", + "microchip,usb2517", "microchip,usb2517i" - reg : I2C address on the selected bus (default is <0x2C>) Optional properties : + - reset-gpios : Should specify the gpio for hub reset - skip-config : Skip Hub configuration, but only send the USB-Attach command - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424) - product-id : Set USB Product ID of the hub (16 bit, default depends on type) @@ -19,29 +20,47 @@ Optional properties : - manufacturer : Set USB Manufacturer string (max 31 characters long) - product : Set USB Product string (max 31 characters long) - serial : Set USB Serial string (max 31 characters long) - - {bus,self}-powered : selects between self- and bus-powered operation (default - is self-powered) - - disable-hi-speed : disable USB Hi-Speed support + - {bus,self}-powered : selects between self- and bus-powered operation + (boolean, default is self-powered) + - disable-hi-speed : disable USB Hi-Speed support (boolean) - {multi,single}-tt : selects between multi- and single-transaction-translator - (default is multi-tt) - - disable-eop : disable End of Packet generation in full-speed mode + (boolean, default is multi-tt) + - disable-eop : disable End of Packet generation in full-speed mode (boolean) - {ganged,individual}-sensing : select over-current sense type in self-powered - mode (default is individual) + mode (boolean, default is individual) - {ganged,individual}-port-switching : select port power switching mode - (default is individual) + (boolean, default is individual) - dynamic-power-switching : enable auto-switching from self- to bus-powered - operation if the local power source is removed or unavailable + operation if the local power source is removed or unavailable (boolean) - oc-delay-us : Delay time (in microseconds) for filtering the over-current sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If an invalid value is given, the default is used instead. - - compound-device : indicate the hub is part of a compound device - - port-mapping-mode : enable port mapping mode + - compound-device : indicate the hub is part of a compound device (boolean) + - port-mapping-mode : enable port mapping mode (boolean) + - led-{usb,speed}-mode : led usb/speed indication mode selection + (boolean, default is speed mode) - string-support : enable string descriptor support (required for manufacturer, product and serial string configuration) - non-removable-ports : Should specify the ports which have a non-removable device connected. - sp-disabled-ports : Specifies the ports which will be self-power disabled - bp-disabled-ports : Specifies the ports which will be bus-power disabled + - sp-max-total-current-microamp: Specifies max current consumed by the hub + from VBUS when operating in self-powered hub. It includes the hub + silicon along with all associated circuitry including a permanently + attached peripheral (range: 0 - 100000 uA, default 1000 uA) + - bp-max-total-current-microamp: Specifies max current consumed by the hub + from VBUS when operating in self-powered hub. It includes the hub + silicon along with all associated circuitry including a permanently + attached peripheral (range: 0 - 510000 uA, default 100000 uA) + - sp-max-removable-current-microamp: Specifies max current consumed by the hub + from VBUS when operating in self-powered hub. It includes the hub + silicon along with all associated circuitry excluding a permanently + attached peripheral (range: 0 - 100000 uA, default 1000 uA) + - bp-max-removable-current-microamp: Specifies max current consumed by the hub + from VBUS when operating in self-powered hub. It includes the hub + silicon along with all associated circuitry excluding a permanently + attached peripheral (range: 0 - 510000 uA, default 100000 uA) - power-on-time-ms : Specifies the time it takes from the time the host initiates the power-on sequence to a port until the port has adequate power. The value is given in ms in a 0 - 510 range (default is 100ms). @@ -56,7 +75,6 @@ Examples: usb2514b@2c { compatible = "microchip,usb2514b"; reg = <0x2c>; - reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>; vendor-id = /bits/ 16 <0x0000>; product-id = /bits/ 16 <0x0000>; string-support; |