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Date: Wed, 3 Aug 2005 14:33:26 -0400 (EDT)
From: "Vikas Aggarwal" <va824363@albany.edu>
To: "Kim Phillips" <kim.phillips@freescale.com>
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Cc: linuxppc-embedded@ozlabs.org
Subject: Re: mpc8248  SEC -- interrupt handler 'is' invoked
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I will try the new BSP but meanwhile like to debug my ported driver.

Is there a way , like kernel level single-stepping to know why the
"interrupt status register"  gets a value of "0x0000000000000040" which
means TEA , transfer error acknowledge.

I changed and tested ur latest advice but same error in "interrupt status
register"

-vikas


> On Tue, 2 Aug 2005 11:45:15 -0400 (EDT)
> "Vikas Aggarwal" <va824363@albany.edu> wrote:
>
>>
>> This is how i write the address of RNG buffer(sec1_dpd.c.
>> DPDPTR->fld[i].ptr = virt_to_phys(*(unsigned int *) ((unsigned int)pReq
>> +
>> pDesc->fld[i].ptrOffset1st));
>>
>
> everything looks good except I'd try changing the above to something like:
>
> DPDPTR->fld[i].ptr = dma_map_single(NULL, ...ptrOffset1st,
> 		...lenOffset1st, DMA_TO_DEVICE);
>
> and change the DMA_BIDIRECTIONAL to DMA_TO_DEVICE in the DPD's address
> assignment.
>
> btw, a BSP upgrade (based on 2.6.11) for your platform should be available
> in a couple of weeks.  I'll let you know the status of the SEC driver for
> it.
>
> Kim
>