linux-kernel - Re: PIR OFFSET for AR7

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Date:	Fri, 04 Dec 2009 11:30:57 -0600
From:	myuboot@...tmail.fm
To:	"Thomas Bogendoerfer" <tsbogend@...ha.franken.de>
Cc:	linux-kernel@...r.kernel.org,
	"linux-mips" <linux-mips@...ux-mips.org>
Subject: Re: PIR OFFSET for AR7

Thomas,

Sorry, you are right. I mistook PM_OFFSET for PIR_OFFSET.

Thanks, Andrew
On Fri, 04 Dec 2009 17:03 +0100, "Thomas Bogendoerfer"
<tsbogend@...ha.franken.de> wrote:
> On Thu, Dec 03, 2009 at 07:52:30PM -0600, myuboot@...tmail.fm wrote:
> > Hi, What is the use of PIR register for AR7 board in file
> > arch/mips/ar7/irq.c?
> 
> it gives back the channel and line of the pending interrupt with the
> highest priority.
> 
> > If I understand it right, PIR is used to define the
> > polarity of the interrupts. It seems to me that it needs to initialized?
> 
> no, it's a read only register. Why do you think it has something to do
> with interrupt polarity ?
> 
> Thomas.
> 
> -- 
> Crap can work. Given enough thrust pigs will fly, but it's not necessary
> a
> good idea.                                                [ RFC1925, 2.3
> ]
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