[U-Boot] ttyO2 and ttyS2 in console bootcmd.

Bedia, Vaibhav vaibhav.bedia at ti.com
Mon May 2 07:15:29 CEST 2011


On Monday, May 02, 2011 4:46 AM, Chris Rodley wrote:
> Hi,
> 
>  How does uboot specify whether it accepts ttySO or ttyS2 in
>  the console part of the boot cmd. I am trying to boot the
> 2.6.39 kernel .. my new uboot works with 2.6.32 using ttyS2. 
> 
>  It does not work with the new 2.6.39, but I can get that to
>  boot by compiling uboot for the BeagleBoard and using ttySO.
> I have spent a lot of time looking at the differences in the
> code and have not been able to work out what it is that needs
> to be changed on my custom uboot to make it work.   
> 
> 
> Any ideas?
>  Thanks,
> 
>  CJ

Are you sure that its ttyS0 and not ttyO2 that fixes the problem?

Latest OMAP kernels use ttyO* instead of ttyS* and the necessary change are already there in U-Boot.

Look at "include/configs/omap3_beagle.h" in the U-Boot sources.

Regards,
Vaibhav


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