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 <s...@denx.de> wrote:
> On Thursday 14 January 2010 10:39:57 anupbeh...@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
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de
>
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