mpc8248 SEC -- interrupt handler not invoked

[Kim Phillips]

On Fri, 29 Jul 2005 11:40:27 -0400 (EDT)
"Vikas Aggarwal" <va824363 at albany.edu> wrote:

> Hi All,
>   Will  appreciate if someone can guide me how to debug this inside SEC
> (security co-processor) core.
> 
>  The linux driver is writing descriptor into the FETCH-Register(0x2048) 
> for Random Number generation execution unit(RNG-EU). The request came
> through a test program from user space. The RNG generation request never
> seems to complete as my ISR is not invoked.
>  I checked the CCPSR(Crypto Channel Pointer Status register = 0x2010) and
> it has value=0:7(0-31 : 32-63 bits). 7 means "channel_error". But its
> always there even before I write the RNG descriptor to Fetch-register.

a value of 7 in bits 56-63 (PAIR_PTR) can suggest processing has not begun.

can you verify you are writing the upper bits of the FR (i.e. 0x204c)?

Kim