85 lines
4.2 KiB
Plaintext
85 lines
4.2 KiB
Plaintext
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Microchip USB 2.0 Hi-Speed Hub Controller
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The device node for the configuration of a Microchip USB251x/xBi USB 2.0
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Hi-Speed Controller.
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Required properties :
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- compatible : Should be "microchip,usb251xb" or one of the specific types:
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"microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",
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"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi",
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"microchip,usb2517", "microchip,usb2517i"
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- reg : I2C address on the selected bus (default is <0x2C>)
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Optional properties :
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- reset-gpios : Should specify the gpio for hub reset
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- skip-config : Skip Hub configuration, but only send the USB-Attach command
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- vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424)
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- product-id : Set USB Product ID of the hub (16 bit, default depends on type)
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- device-id : Set USB Device ID of the hub (16 bit, default is 0x0bb3)
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- language-id : Set USB Language ID (16 bit, default is 0x0000)
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- manufacturer : Set USB Manufacturer string (max 31 characters long)
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- product : Set USB Product string (max 31 characters long)
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- serial : Set USB Serial string (max 31 characters long)
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- {bus,self}-powered : selects between self- and bus-powered operation
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(boolean, default is self-powered)
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- disable-hi-speed : disable USB Hi-Speed support (boolean)
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- {multi,single}-tt : selects between multi- and single-transaction-translator
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(boolean, default is multi-tt)
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- disable-eop : disable End of Packet generation in full-speed mode (boolean)
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- {ganged,individual}-sensing : select over-current sense type in self-powered
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mode (boolean, default is individual)
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- {ganged,individual}-port-switching : select port power switching mode
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(boolean, default is individual)
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- dynamic-power-switching : enable auto-switching from self- to bus-powered
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operation if the local power source is removed or unavailable (boolean)
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- oc-delay-us : Delay time (in microseconds) for filtering the over-current
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sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If
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an invalid value is given, the default is used instead.
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- compound-device : indicate the hub is part of a compound device (boolean)
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- port-mapping-mode : enable port mapping mode (boolean)
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- led-{usb,speed}-mode : led usb/speed indication mode selection
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(boolean, default is speed mode)
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- string-support : enable string descriptor support (required for manufacturer,
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product and serial string configuration)
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- non-removable-ports : Should specify the ports which have a non-removable
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device connected.
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- sp-disabled-ports : Specifies the ports which will be self-power disabled
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- bp-disabled-ports : Specifies the ports which will be bus-power disabled
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- sp-max-total-current-microamp: Specifies max current consumed by the hub
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from VBUS when operating in self-powered hub. It includes the hub
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silicon along with all associated circuitry including a permanently
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attached peripheral (range: 0 - 100000 uA, default 1000 uA)
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- bp-max-total-current-microamp: Specifies max current consumed by the hub
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from VBUS when operating in self-powered hub. It includes the hub
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silicon along with all associated circuitry including a permanently
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attached peripheral (range: 0 - 510000 uA, default 100000 uA)
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- sp-max-removable-current-microamp: Specifies max current consumed by the hub
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from VBUS when operating in self-powered hub. It includes the hub
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silicon along with all associated circuitry excluding a permanently
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attached peripheral (range: 0 - 100000 uA, default 1000 uA)
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- bp-max-removable-current-microamp: Specifies max current consumed by the hub
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from VBUS when operating in self-powered hub. It includes the hub
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silicon along with all associated circuitry excluding a permanently
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attached peripheral (range: 0 - 510000 uA, default 100000 uA)
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- power-on-time-ms : Specifies the time it takes from the time the host
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initiates the power-on sequence to a port until the port has adequate
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power. The value is given in ms in a 0 - 510 range (default is 100ms).
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Examples:
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usb2512b@2c {
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compatible = "microchip,usb2512b";
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reg = <0x2c>;
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reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
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};
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usb2514b@2c {
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compatible = "microchip,usb2514b";
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reg = <0x2c>;
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vendor-id = /bits/ 16 <0x0000>;
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product-id = /bits/ 16 <0x0000>;
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string-support;
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manufacturer = "Foo";
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product = "Foo-Bar";
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serial = "1234567890A";
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};
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