[U-Boot] Special memory test Question

[Wolfgang Denk]

Dear Martin,

please keep the ML on Cc:.

In message <001201c92a17$ee1381c0$4201a8c0 at amil> you wrote:
> 
> > Is there by chance any watchdog on your system that mith have such a
> > timeout / reset period?
...
> Thank you for your quick reply.  U-Boot appears to work properly apart from 
> the "loop" command.  I have not run Linux, but different versions of my 
> application will normally fail in a similar way to what happens when using 
> the loop command (but after different periods of time i.e 0 to 30 seconds).
> 
> If I type
> loop .b <SDRAM address>
> or
> loop .b <internal SRAM address>
> U-boot, after about 20 seconds, produces the dump copied below.
> 
> However if I type
> loop .b <Flash memory address>
> e.g. loop .  40000
> the code appears to go into an infinate loop.
> 
> Would a dump be produced if the loop command was terminated by a watchdog?

No, not as you describe.

I think there are two likely reasons for your problem remaining:  (1)
incorrect  initialization  of  your  RAM  (see  FAQ  #  1), and (2) a
hardware problem.

Best regards,

Wolfgang Denk

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