From: Scott Wood <scottwood@freescale.com>
To: Leonid <Leonid@a-k-a.net>
Cc: Balajee Premraj <balajee@a-k-a.net>, linuxppc-embedded@ozlabs.org
Subject: Re: 2 PCI devices behind PCI bridge on Yosemite board.
Date: Thu, 30 Nov 2006 14:26:28 -0600 [thread overview]
Message-ID: <456F3E74.9070405@freescale.com> (raw)
In-Reply-To: <406A31B117F2734987636D6CCC93EE3C99D709@ehost011-3.exch011.intermedia.net>
Leonid wrote:
> On Dreamchip board itself I couldn't find how to mask the interrupt, but
> I'll search more. Can you recommend example for "real" IRQ handler for
> Dreamchip? I just don't what the system crash.
The IRQ handler must clear whatever event triggered the interrupt.
> BTW, what will happen if
> Dreamchip and Silicon Image will assert interrupt simultaneously?
Nothing special. Both handlers run every time either device interrupts;
if they both have events pending, then both handlers handle them.
-Scott
prev parent reply other threads:[~2006-11-30 20:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-30 19:52 2 PCI devices behind PCI bridge on Yosemite board Leonid
2006-11-30 20:07 ` Scott Wood
2006-11-30 20:18 ` Leonid
2006-11-30 20:26 ` Scott Wood [this message]
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