| Microchip USB 2.0 Hi-Speed Hub Controller |
| |
| The device node for the configuration of a Microchip USB251xB/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" |
| - hub-reset-gpios : Should specify the gpio for hub reset |
| |
| Optional properties : |
| - reg : I2C address on the selected bus (default is <0x2C>) |
| - skip-config : Skip Hub configuration, but only send the USB-Attach command |
| - vendor-id : USB Vendor ID of the hub (16 bit, default is 0x0424) |
| - product-id : USB Product ID of the hub (16 bit, default depends on type) |
| - device-id : USB Device ID of the hub (16 bit, default is 0x0bb3) |
| - language-id : USB Language ID (16 bit, default is 0x0000) |
| - manufacturer : USB Manufacturer string (max 31 characters long) |
| - product : USB Product string (max 31 characters long) |
| - serial : 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 |
| - {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 |
| - {ganged,individual}-sensing : select over-current sense type in self-powered |
| mode (default is individual) |
| - {ganged,individual}-port-switching : select port power switching mode |
| (default is individual) |
| - dynamic-power-switching : enable auto-switching from self- to bus-powered |
| operation if the local power source is removed or unavailable |
| - oc-delay-{100us,4ms,8ms,16ms} : set over current timer delay (default is 8ms) |
| - compound-device : indicated the hub is part of a compound device |
| - port-mapping-mode : enable port mapping 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 |
| - max-sp-power : Specifies the maximum current the hub consumes from an |
| upstream port when operating as self-powered hub including the power |
| consumption of a permanently attached peripheral if the hub is |
| configured as a compound device. The value is given in mA in a 0 - 500 |
| range (default is 2). |
| - max-bp-power : Specifies the maximum current the hub consumes from an |
| upstream port when operating as bus-powered hub including the power |
| consumption of a permanently attached peripheral if the hub is |
| configured as a compound device. The value is given in mA in a 0 - 500 |
| range (default is 100). |
| - max-sp-current : Specifies the maximum current the hub consumes from an |
| upstream port when operating as self-powered hub EXCLUDING the power |
| consumption of a permanently attached peripheral if the hub is |
| configured as a compound device. The value is given in mA in a 0 - 500 |
| range (default is 2). |
| - max-bp-current : Specifies the maximum current the hub consumes from an |
| upstream port when operating as bus-powered hub EXCLUDING the power |
| consumption of a permanently attached peripheral if the hub is |
| configured as a compound device. The value is given in mA in a 0 - 500 |
| range (default is 100). |
| - power-on-time : 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). |
| |
| Examples: |
| usb2512b@2c { |
| compatible = "microchip,usb2512b"; |
| hub-reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>; |
| }; |
| |
| 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; |
| manufacturer = "Foo"; |
| product = "Foo-Bar"; |
| serial = "1234567890A"; |
| }; |
