* spurious interrupts
@ 2002-01-07 16:30 mschmid
2002-01-07 18:30 ` Mark A. Greer
0 siblings, 1 reply; 2+ messages in thread
From: mschmid @ 2002-01-07 16:30 UTC (permalink / raw)
To: linuxppc-embedded
Hi all.
I started porting the linux kernel 2.2.12 on our MPC8240 based board (own
board design).
The MPC8240 EPIC is used as interrupt controller.
After external interrupts are enabled in start_kernel() the CPU loops
endless within the interrupt handler, because of spurious interrupts.
I reduced the initialization of OpenPic to a minimum to find the source
generating the spurious interrupts, but nothing changed.
I searched for this problem in the archiv of the mailing list but i did not
find any solution.
With kernel 2.4.2 i recognized the same problem so i think there is
something wrong within my port.
Have anyone had this probleme before ?
Mathias
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: spurious interrupts
2002-01-07 16:30 spurious interrupts mschmid
@ 2002-01-07 18:30 ` Mark A. Greer
0 siblings, 0 replies; 2+ messages in thread
From: Mark A. Greer @ 2002-01-07 18:30 UTC (permalink / raw)
To: mschmid; +Cc: linuxppc-embedded
Double check the polarity of the interrupts lines. If one is wrong,
you'll do nothing but get interrupts.
Mark
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
^ permalink raw reply [flat|nested] 2+ messages in thread
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