Artesyn COMX-P40x0 ENP2 Installation and Use (August 2014) - Manual (Page 107)

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COMX-P40x0 ENP2 Installation and Use (6806800R95B) 107
U-Boot provides "usb" utilities to operate the USB sticks:
Note that "usb start/reset" must be executed before the other commands can be run. Below
are usage samples of "usb start.
7.19 SerDes
The COMX-P40x0 has three Serializer/Deserializer (SerDes) banks, including a total of 18 lanes.
For more information on the SerDes, see SERDES Block on page 62 . This includes the SerDes
lane distribution and options when it is routed to the COM-E connectors.
Utility Function
usb reset Resets or rescans USB controller
usb stop [f] Stops USB [f]=force stop
usb tree Shows USB device tree
usb info [dev] Shows available USB devices
usb storage Shows details of USB storage devices
usb dev [dev] Shows or set current USB storage device
usb part [dev] Prints partition table of one or all USB storage devices
usb read addr blk# cnt Reads `cnt' blocks starting at block `blk#' to memory address
`addr‘
usb write addr blk# cnt Writes `cnt' blocks starting at block `blk#' from memory
address `addr'
=> usb start
(Re)start USB...
USB: Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 3 USB Device(s) found
scanning bus for storage devices... 1 Storage Device(s) found