Failure of request_irq() for MPC8313 using arch=powerpc
DaveLiu at freescale.com
Wed Jul 16 12:09:02 EST 2008
If current PowerPC linux is using the virq to request_irq,
you need do the irq_of_parse_and_map(np, 0) to get the virq.
virq = irq_of_parse_and_map(np, 0)
Hope it can help you.
From: linuxppc-embedded-bounces+daveliu=freescale.com at ozlabs.org [mailto:linuxppc-embedded-bounces+daveliu=freescale.com at ozlabs.org] On Behalf Of Duy-Ky Nguyen
Sent: 2008?7?16? 8:59 AM
To: linuxppc-embedded at ozlabs.org
Subject: Failure of request_irq() for MPC8313 using arch=powerpc
I had no problem in using request_irq() for MPC8272 with arch=ppc from Montavista Linux
But I have failure for MPC8313 with arch=powerpc from FreeScale LTIB Linux with error code -38
I found its header file mpc83xx.h under include/asm-ppc, while it's supposed to be under include/asm-powerpc.
I did try to copy the header file to directory asm-powerpc
From MPC8313 datasheet, I have
GPIO_IRQ = 74
and I use
DEVICE_NAME = "ppc"
IRQ_FLAG = IRQF_SHARED // use new flag
here my function call
I'd appreciate any help on this problem.
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