Hard Ware Tests from U-Boot
1. New Command will be added to the U-Boot:
• u-boot>chkboard
> command will get one parameter which check to run one specific check or all checks:
>chkboard RS-232 100
usage: chkboard RS-232-2 LoopCount
Loop Back Cable/Connector will be used to connect: RS232-2 Tx to RS232-2 Rx
UART2 Should be configured as RS-232 using the RS232/RS485 selection GPIO