From: Josh Boyer <jwboyer@linux.vnet.ibm.com>
To: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: PCI interrupt assignment on sequoia board
Date: Wed, 9 Jan 2008 10:18:26 -0600 [thread overview]
Message-ID: <20080109101826.51c6799c@zod.rchland.ibm.com> (raw)
In-Reply-To: <200801091653.22478.matthias.fuchs@esd-electronics.com>
On Wed, 9 Jan 2008 16:53:22 +0100
Matthias Fuchs <matthias.fuchs@esd-electronics.com> wrote:
> Hi,
>
> I noticed that Josh's 'for-2.5.25' does not assign PCI interrupts correctly:
>
> bash-3.00# lspci -v
> 00:00.0 Class 0680: 1014:027f
> Subsystem: 10e8:cafe
> Flags: bus master, medium devsel, latency 0, IRQ 16
> Memory at <unassigned> (32-bit, prefetchable)
> Capabilities: [58] Power Management version 2
>
> 00:0a.0 Class 0b20: 1014:027f (this is a PPC440EPx PCI target board in a sequoia PCI slot)
> Subsystem: 12fe:0441
> Flags: bus master, medium devsel, latency 128, IRQ 16
> Memory at 0000000180000000 (32-bit, prefetchable) [size=64M]
> Memory at 0000000184000000 (32-bit, prefetchable) [size=16M]
> Capabilities: [58] Power Management version 2
>
> 00:0c.0 Class 0200: 168c:0013 (rev 01)
> Subsystem: 14b7:0a60
> Flags: bus master, medium devsel, latency 128, IRQ 16
> Memory at 0000000185000000 (32-bit, non-prefetchable) [size=64K]
> Capabilities: [44] Power Management version 2
>
> bash-3.00# uname -a
> Linux sequoia 2.6.24-rc6-g78994e24 #5 Wed Jan 9 16:22:31 CET 2008 ppc ppc ppc GNU/Linux
>
>
> All interrupts are '16'. But I expected 67 as correctly stated in the device tree.
> This test has been made with the uboot wrapper code.
>
> Any idea?
Does lspci display the virtual IRQ number that is assigned when the
device tree is parsed and interrupts are mapped? I think so. If you
look at the other devices in /proc/interrupts you'll see they have the
virtual IRQ numbers as well.
josh
prev parent reply other threads:[~2008-01-09 16:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-09 15:53 PCI interrupt assignment on sequoia board Matthias Fuchs
2008-01-09 16:04 ` Stefan Roese
2008-01-09 16:18 ` Josh Boyer [this message]
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