MPC8xx exception handling (or is somebody using 4.5 with MPC8xx)

[Erwin Rol]

I tried our BSP on 4.5 and it crashed :-) i didn't have time
to look into it and it might be something simple.

we have a 860T based board.

- Erwin



Eric Valette wrote:
> 
> Peer Stritzinger wrote:
> >
> > Hi,
> >
> > I'm trying to build a BSP for a MPC850 board using the bare BSP
> > (MPC860) using RTEMS 4.5.0beta3.
> >
> > At the moment I have troubles getting the exception handling to run
> > for the on chip ``external'' interrupts.
> >
> > In the file:
> >
> > rtems-4.5.0-beta3/c/src/exec/score/cpu/powerpc/old_exception_processing/cpu.c
> >
> > there is support for the on chip interrupt handler irq's that are
> > routed to the external interrupt (at 0x500).  For example when I want
> > to have a handler for the LVL1 irq I can install it at vector
> > PPC_IRQ_LVL1.  This installs a pseudo irq stub but this stub is never
> > called because there is no generic external interrupt handler (that
> > should be installed at 0x500) to reroute the irq to the pseudo stub.
> >
> > Did I miss something?
> >
> > Is anybody using 4.5 with MPC8xx?
> >
> > If yes how are is the on chip interrupt handler used?
> >
> > Peer Stritzinger
> 
> I'm currently porting new_exception_processing to 8xx... FYI
> 
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