SIU_INT_IRQ4 in MPC 8260

2006-07-07 Thread [EMAIL PROTECTED] 
Hi all

I am trying to set up a interrupt handler for SIU_INT_IRQ4.

The target I am using is MPC 8260 , emmbedded planet Evaluation board.

The OS is Embedded Linux .
-

void my_interrupt_handler(int irq, void *dev_id, struct pt_regs *regs)
{

 printk(*** \n);

}


 if( request_irq(SIU_INT_IRQ4,my_interrupt_handler,0,0,0)  0)
 {
 printk(\n unable to register the interrupt handler \n);
 }

-


But my_interrupt_handler isn't getting called .

Can anyone help me to fix this problem

Regards
Jagan






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SIU_INT_IRQ4 in MPC 8260

2006-07-07 Thread Li Yang-r58472 
Are you sure the IRQ4 line is generating irqs?  Did you measure the line
using an oscilloscope?

Best Regards,
Leo
 -Original Message-
 From: linuxppc-embedded-bounces+leoli=freescale.com at ozlabs.org
 [mailto:linuxppc-embedded-bounces+leoli=freescale.com at ozlabs.org] On
Behalf
 Of jagannathanjay at aim.com
 Sent: Friday, July 07, 2006 5:05 PM
 To: linuxppc-embedded at ozlabs.org
 Subject: SIU_INT_IRQ4 in MPC 8260
 
 Hi all
 
 I am trying to set up a interrupt handler for SIU_INT_IRQ4.
 
 The target I am using is MPC 8260 , emmbedded planet Evaluation board.
 
 The OS is Embedded Linux .


-
 
 void my_interrupt_handler(int irq, void *dev_id, struct pt_regs *regs)
 {
 
  printk(*** \n);
 
 }
 
 
  if( request_irq(SIU_INT_IRQ4,my_interrupt_handler,0,0,0)  0)
  {
  printk(\n unable to register the interrupt handler \n);
  }
 


-
 
 
 But my_interrupt_handler isn't getting called .
 
 Can anyone help me to fix this problem
 
 Regards
 Jagan
 
 
 
 
 


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 Linuxppc-embedded at ozlabs.org
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SIU_INT_IRQ4 in MPC 8260

2006-07-07 Thread Li Yang-r58472 
Interrupt is signal sending from external devices to CPU notifying
something has happened.  So if you want your interrupt handler be
called, first you have to make sure the device does send such signals.

Best Regards,
Leo
 -Original Message-
 From: jagannathanjay at aim.com [mailto:jagannathanjay at aim.com]
 Sent: Friday, July 07, 2006 5:24 PM
 To: Li Yang-r58472
 Subject: Re: SIU_INT_IRQ4 in MPC 8260
 
 No I haven't measured the IRQ4 line
 
 I am newbie into MPC8260 .
 
 Can u guide me as to what way I should proceed to get my interrupt
 handler working?
 
 Regards
 Jagan
 
 
 
 -Original Message-
 From: Li Yang-r58472 LeoLi at freescale.com
 To: jagannathanjay at aim.com; linuxppc-embedded at ozlabs.org
 Sent: Fri, 7 Jul 2006 17:18:54 +0800
 Subject: RE: SIU_INT_IRQ4 in MPC 8260
 
Are you sure the IRQ4 line is generating irqs?  Did you measure the
 line
 using an oscilloscope?
 
 Best Regards,
 Leo
  -Original Message-
  From: linuxppc-embedded-bounces+leoli=freescale.com at ozlabs.org
  [mailto:linuxppc-embedded-bounces+leoli=freescale.com at ozlabs.org] On
 Behalf
  Of jagannathanjay at aim.com
  Sent: Friday, July 07, 2006 5:05 PM
  To: linuxppc-embedded at ozlabs.org
  Subject: SIU_INT_IRQ4 in MPC 8260
 
  Hi all
 
  I am trying to set up a interrupt handler for SIU_INT_IRQ4.
 
  The target I am using is MPC 8260 , emmbedded planet Evaluation
board.
 
  The OS is Embedded Linux .
 


 -
  
  void my_interrupt_handler(int irq, void *dev_id, struct pt_regs
*regs)
  {
 
   printk(***
 );
 
  }
 
 
   if( request_irq(SIU_INT_IRQ4,my_interrupt_handler,0,0,0)  0)
   {
   printk(
  unable to register the interrupt handler
 );
   }
 
 


 -
  
 
  But my_interrupt_handler isn't getting called .
 
  Can anyone help me to fix this problem
 
  Regards
  Jagan
 
 
 
 
 
 


  Check Out the new free AIM(R) Mail -- 2 GB of storage and
  industry-leading spam and email virus protection.
 
  ___
  Linuxppc-embedded mailing list
  Linuxppc-embedded at ozlabs.org
  https://ozlabs.org/mailman/listinfo/linuxppc-embedded
 
 


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SIU_INT_IRQ4 in MPC 8260

2006-07-07 Thread Laurent Pinchart 
 I am trying to set up a interrupt handler for SIU_INT_IRQ4.

 The target I am using is MPC 8260 , emmbedded planet Evaluation board.
 The OS is Embedded Linux .

[snip]

 But my_interrupt_handler isn't getting called .

Make sure the CPM IRQ controller is properly configured. Here's the code I 
used to configure IRQ5 and IRQ6 in edge sensitive mode. Read the MPC8260 
datasheet to check how to set other options. If IRQ4 is multiplexed with 
other signals, make sure you configured the MPC8260 to use the external pin 
as IRQ4.

static void __init tbox_cp11_init_irq(void)
{
volatile intctl_cpm2_t *ic = cpm2_immr-im_intctl;

init_irq();

/* Make IRQ5 and IRQ6 edge sensitive */
ic-ic_siexr |= 1  (14 - (SIU_INT_IRQ5 - SIU_INT_IRQ1));
irq_desc[SIU_INT_IRQ5].status = ~IRQ_LEVEL;

ic-ic_siexr |= 1  (14 - (SIU_INT_IRQ6 - SIU_INT_IRQ1));
irq_desc[SIU_INT_IRQ6].status = ~IRQ_LEVEL;
}

void __init m82xx_board_init(void)
{
init_irq = ppc_md.init_IRQ;
ppc_md.init_IRQ = tbox_cp11_init_irq;

}

Laurent Pinchart