Hi ,
I am using AT91SAM9260 and i have a query regarding the debug unit. The debug unit is associated with GPIOs PB14 and PB15 pins and the default console comes up with this USART6 (debug unit). My issue is , i need to change the console port to one another USART ,say USART 2 which uses PB8 and PB9 as TXD and RXD. Is it possible to get all the console logs on a USART port other than debug unit USART ? I tried bootargs , but it causes a change only after U -boot initialization.More over that i need it to be hard coded to USART2 so that user dont need to enter the bootargs every time.I have done a few changes in the bootstrap and u - boot codes but, all the efforts were successful failure. How can i get the bootstrap , u -boot and kernel initialization logs in USART2 . Anticipating your valuable advice.

thank you

bootargs is actually used for the kernel command line, so its contents only take effect after the kernel has started. Any changes to bootargs (or any other U-Boot environment variables) can be saved with the command.

Use of the debug port begins in ROMboot, and then in AT91Bootstrap, and then in U-Boot. Good luck trying to change the code in ROMboot. IOW you might be able to redirect the console I/O in a modified AT91Bootstrap and U-Boot, but re-purposing PB14 & PB15 is questionable.

Regards