| Richard Leitner | 3ec72a2 | 2017-02-10 09:19:27 +0100 | [diff] [blame^] | 1 | Microchip USB 2.0 Hi-Speed Hub Controller |
| 2 | |
| 3 | The device node for the configuration of a Microchip USB251xB/xBi USB 2.0 |
| 4 | Hi-Speed Controller. |
| 5 | |
| 6 | Required 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 | - hub-reset-gpios : Should specify the gpio for hub reset |
| 11 | |
| 12 | Optional properties : |
| 13 | - reg : I2C address on the selected bus (default is <0x2C>) |
| 14 | - skip-config : Skip Hub configuration, but only send the USB-Attach command |
| 15 | - vendor-id : USB Vendor ID of the hub (16 bit, default is 0x0424) |
| 16 | - product-id : USB Product ID of the hub (16 bit, default depends on type) |
| 17 | - device-id : USB Device ID of the hub (16 bit, default is 0x0bb3) |
| 18 | - language-id : USB Language ID (16 bit, default is 0x0000) |
| 19 | - manufacturer : USB Manufacturer string (max 31 characters long) |
| 20 | - product : USB Product string (max 31 characters long) |
| 21 | - serial : USB Serial string (max 31 characters long) |
| 22 | - {bus,self}-powered : selects between self- and bus-powered operation (default |
| 23 | is self-powered) |
| 24 | - disable-hi-speed : disable USB Hi-Speed support |
| 25 | - {multi,single}-tt : selects between multi- and single-transaction-translator |
| 26 | (default is multi-tt) |
| 27 | - disable-eop : disable End of Packet generation in full-speed mode |
| 28 | - {ganged,individual}-sensing : select over-current sense type in self-powered |
| 29 | mode (default is individual) |
| 30 | - {ganged,individual}-port-switching : select port power switching mode |
| 31 | (default is individual) |
| 32 | - dynamic-power-switching : enable auto-switching from self- to bus-powered |
| 33 | operation if the local power source is removed or unavailable |
| 34 | - oc-delay-{100us,4ms,8ms,16ms} : set over current timer delay (default is 8ms) |
| 35 | - compound-device : indicated the hub is part of a compound device |
| 36 | - port-mapping-mode : enable port mapping mode |
| 37 | - string-support : enable string descriptor support (required for manufacturer, |
| 38 | product and serial string configuration) |
| 39 | - non-removable-ports : Should specify the ports which have a non-removable |
| 40 | device connected. |
| 41 | - sp-disabled-ports : Specifies the ports which will be self-power disabled |
| 42 | - bp-disabled-ports : Specifies the ports which will be bus-power disabled |
| 43 | - max-sp-power : Specifies the maximum current the hub consumes from an |
| 44 | upstream port when operating as self-powered hub including the power |
| 45 | consumption of a permanently attached peripheral if the hub is |
| 46 | configured as a compound device. The value is given in mA in a 0 - 500 |
| 47 | range (default is 2). |
| 48 | - max-bp-power : Specifies the maximum current the hub consumes from an |
| 49 | upstream port when operating as bus-powered hub including the power |
| 50 | consumption of a permanently attached peripheral if the hub is |
| 51 | configured as a compound device. The value is given in mA in a 0 - 500 |
| 52 | range (default is 100). |
| 53 | - max-sp-current : Specifies the maximum current the hub consumes from an |
| 54 | upstream port when operating as self-powered hub EXCLUDING the power |
| 55 | consumption of a permanently attached peripheral if the hub is |
| 56 | configured as a compound device. The value is given in mA in a 0 - 500 |
| 57 | range (default is 2). |
| 58 | - max-bp-current : Specifies the maximum current the hub consumes from an |
| 59 | upstream port when operating as bus-powered hub EXCLUDING the power |
| 60 | consumption of a permanently attached peripheral if the hub is |
| 61 | configured as a compound device. The value is given in mA in a 0 - 500 |
| 62 | range (default is 100). |
| 63 | - power-on-time : Specifies the time it takes from the time the host initiates |
| 64 | the power-on sequence to a port until the port has adequate power. The |
| 65 | value is given in ms in a 0 - 510 range (default is 100ms). |
| 66 | |
| 67 | Examples: |
| 68 | usb2512b@2c { |
| 69 | compatible = "microchip,usb2512b"; |
| 70 | hub-reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>; |
| 71 | }; |
| 72 | |
| 73 | usb2514b@2c { |
| 74 | compatible = "microchip,usb2514b"; |
| 75 | reg = <0x2c>; |
| 76 | reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>; |
| 77 | vendor-id = /bits/ 16 <0x0000>; |
| 78 | product-id = /bits/ 16 <0x0000>; |
| 79 | string-support; |
| 80 | manufacturer = "Foo"; |
| 81 | product = "Foo-Bar"; |
| 82 | serial = "1234567890A"; |
| 83 | }; |