[U-Boot] U-Boot Crashes with Dumps

[anup behare]

Thanks Stenfan for your valuable inputs.

I have implemented the code suggested by you after completing the ddr
initialization :

#if defined(CONFIG_DDR_DATA_EYE)
               /*
                * Running denali_core_search_data_eye() when ECC is enabled
                * causes non-ECC machine checks.  This clears them.
                */
               print_mcsr();
               mtspr(SPRN_MCSR, mfspr(SPRN_MCSR));
               print_mcsr();
#endif

before mtspr and after mtspr i am getting the same prints i.e EE,ME,CE
disabled.

I am further debugging the same issue.





On Thu, Jan 14, 2010 at 3:54 PM, Stefan Roese <sr at denx.de> wrote:

> On Thursday 14 January 2010 10:39:57 anupbehare at gmail.com wrote:
> > now as I am getting u-boot prompt that means DDR initilised properly.
> > now I am debuging for trap_init and flash_init().
>
> Could be that your DDR init code somehow generates an exception that is
> triggered once trap_init() is called. This is also know to happen in the
> common denali_data_eye code. See here:
>
> #if defined(CONFIG_DDR_DATA_EYE)
>                /*
>                 * Running denali_core_search_data_eye() when ECC is enabled
>                 * causes non-ECC machine checks.  This clears them.
>                 */
>                print_mcsr();
>                mtspr(SPRN_MCSR, mfspr(SPRN_MCSR));
>                print_mcsr();
> #endif
>
> I suggest you analyse this and the Denali registers for any source/status
> of a
> generated exception.
>
> Cheers,
> Stefan
>
> --
> DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
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