[U-Boot] Help starting u-boot on an at91sam9260ek

Fabio Porcedda Fabio.Porcedda at telit.com
Fri Oct 28 18:42:36 CEST 2011


On Fri, 2011-10-28 at 14:45 +0200, Stefano Babic wrote:
> On 10/28/2011 11:21 AM, Fabio Porcedda wrote:
> > Hi all,
> > i'm trying to use the u-boot on an at91sam9260ek board,
> > i cannot start successfull the u-boot binary.
> >
>
> Hi Fabio,
>
Hi Stefano,

> > Hit any key to stop autoboot:  0
> > U-Boot> loadb
> > ## Ready for binary (kermit) download to 0x22000000 at 115200 bps...
> >
>
> Well, it is not clear to me why you want to run u-boot as single
> application, instead of replacing the version you have now on target.
> And why are you loading u-boot at 0x22000000, because if I see in the
> include/configs/at91sam9260ek.h CONFIG_SYS_TEXT_BASE is set to 0x21f00000...

Loading u-boot at 0x21f00000 solved the issue! Thank you very much!
I'm loading as single application, because if make some mistake it's
faster to change the binary, and it's easy to change the load address
too.

> Apart of that, you should also check the bootstrap code (not part of
> u-boot), and maybe you have to fix it if the addresses do not correspond
> or a smaller image from NAND flash as u-boot is copied.

Now i check the bootstrap code for the correct load address.

> Best regards,
> Stefano Babic
>
Thank you very much
Fabio Porcedda


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