linux-kernel - Re: [PATCH 4/7] disable broadcomm legacy boot interrupt generation

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Message-ID: <20080603172758.GF22600@suse.de>
Date:	Tue, 3 Jun 2008 19:27:58 +0200
From:	Olaf Dabrunz <od@...e.de>
To:	Jon Masters <jonathan@...masters.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	Stefan Assmann <sassmann@...e.de>
Subject: Re: [PATCH 4/7] disable broadcomm legacy boot interrupt generation

On 03-Jun-08, Jon Masters wrote:
> 
> On Tue, 2008-06-03 at 17:59 +0200, Olaf Dabrunz wrote:
> > On 03-Jun-08, Jon Masters wrote:
> > > On Mon, 2008-06-02 at 14:45 +0200, Olaf Dabrunz wrote:
> > > 
> > > > Add a quirk to disable legacy boot interrupt generation on broadcomm HT1000.
> > > 
> > > This one interests me, because I got access to the Broadcom HT-1000
> > > datasheet and could not find this feature mentioned in there. I'd
> > > appreciate knowing how you figured this one out :)
> > 
> > I had a sharp look at it... ;)
> 
> Me too. It's ***NOT*** mentioned in there :)

That's right. :)

> > Actually, I looked through the datasheet three times, and did not find
> > anything. Then I looked at the IRQ routing picture until I had an idea
> > of how it is supposed to work and the solution was becoming clear. The
> > register descriptions made me believe it could work, and testing
> > confirmed this.
> 
> Oh, ok, now that takes some inordinate amount of dedication (on the
> level of commitable...I mean dude, WTF? :P). Someone should call the LHC
> and let them know you've got a way to detect the undetectable.

xD *grin* :)

-- 
Olaf Dabrunz (od/odabrunz), SUSE Linux Products GmbH, Nürnberg

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