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Date: Mon, 3 Mar 2008 22:26:22 +0100
From: Philippe De Muyter <phdm@macqel.be>
To: Scott Wood <scottwood@freescale.com>
Subject: Re: ARCH=ppc -> ARCH=powerpc : help needed for dts file
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Hi Scott,

On Mon, Mar 03, 2008 at 03:11:08PM -0600, Scott Wood wrote:
> 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.

Thanks

The following seems important also :

/*
                interrupts = <18 2>;
*/
                /* interrupts number are coded in hexa ! */
                interrupts = <12 2 19 2 1a 2 1b 2 35 2 36 2 37 2>;

I have replaced the interrupts spec in comments by the longer interrupts spec
below, and it seems to have some positive effect, but I do not know
precisely what I have described there.

I know that 25, 26, 27, 53, 54 and 55 decimal i(hence 19, 1a etc...) are the
interrupts numbers that I had in the ARCH=ppc version.  I added 18 because
of the error message, but it did not help.

What should be described here and how ?

Philippe