linux-kernel - Re: MPC85xx External/Internal Interrupts

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Message-ID: <20090910131544.GB23433@Chamillionaire.breakpoint.cc>
Date:	Thu, 10 Sep 2009 15:15:44 +0200
From:	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>
To:	Scott Wood <scottwood@...escale.com>
Cc:	Alemao <xcarandiru@...il.com>, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org
Subject: Re: MPC85xx External/Internal Interrupts

* Scott Wood | 2009-09-09 13:28:57 [-0500]:

>> That's why you always have an offset of 16 between every internal
>> interupt source number in the MPC855ERM document and those weired
>> numbers in the device tree :)
>
>This seems to be a common point of confusion -- we should probably put
>something in the dts bindings that explains it.  Am I correct in assuming
>that this particular internal/external split is Freescale-specific and
>not a general OpenPIC thing?
Yes it looks like this. I can see this split in all mpc85xx boards and
mpc8610 boards from Freescale. There just two boards where I don't see
this kind of split: holly & kurobox and I don't the have the reference
manual for both of them to check. I also don't have an OpenPIC spec to
check there.
So from this it looks like e500/e600 thing and FSL only so far.

>
>-Scott

Sebastian
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