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Date: Mon, 03 Mar 2008 15:11:08 -0600
From: Scott Wood <scottwood@freescale.com>
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To: Philippe De Muyter <phdm@macqel.be>
Subject: Re: ARCH=ppc -> ARCH=powerpc : help needed for dts file
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Philippe De Muyter wrote:
> Is the PCI-interrupt map that part of the dts file :
> 
>                 interrupt-map = <
> 
>                         /* IDSEL 0x02 */
>                         1000 0 0 1 &mpic 1 1
>                         1000 0 0 2 &mpic 2 1
>                         1000 0 0 3 &mpic 3 1
>                         1000 0 0 4 &mpic 4 1
> 
>                         /* IDSEL 0x03 */
>                         1800 0 0 1 &mpic 4 1
>                         1800 0 0 2 &mpic 1 1
>                         1800 0 0 3 &mpic 2 1
>                         1800 0 0 4 &mpic 3 1
> 
> 			...

Yes.

> I do not understand anything there :(

It maps PCI interrupts to mpic interrupts.  The first three cells are 
the PCI address (only the device number is unmasked), then the PCI 
interrupt (INTA=1, INTB=2, etc.), then a phandle to the parent interrupt 
controller, then the interrupt specifier for the parent controller.

-Scott