Subject: Re: Freescale Interrupt enabling

From: David Gibson <[email-masked]>
Date: Fri, 19 Oct 2007 11:46:10 +1000

On Thu, Oct 18, 2007 at 08:41:35AM -0600, Alan Bennett wrote:
> We were developing with Linux 2.6.10 and a Planetcore boot loader,
> however, recent work has us up and running with 2.6.23+ and U-boot
> 1.2.0.  However, we are now running into a few challenges regarding
> the differences.
> 
> Our driver writer's code isn't functioning, but it was with 2.6.10 and
> planet core.  The best I can tell is that the default interrupt
> controller configuration isn't where it was in the planetcore/2.6.10
> version.
> 
> for example, let's look at enabling timer1 / interrupt number 12
> 
> simple description.
> 	       timer1 {
> 	 	       name = "timer1";
>  		       compatible = "fsl,mpc8248_timer";
> 		       interrupts = <c 8>;
> 		       interrupt-parent = <&PIC>;

Device tree nodes should really describe an actual device, not just
some random floating interrupt.  You need to work out what device this
interrupt actually belongs to, and describe that.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson