Artesyn COMX-P40x0 ENP2, Manual

Page: 108 / 130

BSP
COMX-P40x0 ENP2 Installation and Use (6806800R95B )
108
U-Boot provides "rcw" utilities to switch SerDes lanes among the twelve SerDes/RCW options.
A checking feature is also supported. Below is a usage sample of the utilities.
The steps below are used to activate specific SerDes/RCW options.

Run "rcw active <option#>" to activate the SerDes/RCW option#.

Power off the board.

For RCW options #7 or #8, a means to change the SERDES clock settings must be provided
by the customer's carrier board.

Power up the board.
rcw list - Lists the status of RCW sections
rcw active <option#> - active <option#> RCW. <option#> range [1..12]
rcw check current - Checks the current RCW with which system boots up
rcw check active - Checks the status of the active RCW section
rcw check backup
[option#] - Checks the status of all or # backup RCW section(s).
<option#> range [1..12]