Connecting to "PCI command write" interrupt on 4xx platforms
Benjamin Herrenschmidt
benh at kernel.crashing.org
Fri Oct 31 07:15:12 EST 2008
On Thu, 2008-10-30 at 11:58 +0100, Matthias Fuchs wrote:
> I need to connect to the "PCI command write" interrupt on a 440EPx
> platform. This is UIC0/int#5.
>
> Where should I add this interrupt in the DT? To the PCI node? In this
> case it will collide with the
> PCI interrupts.
>
> My application is a 440EPx on a PCI addon card. So the PCI node is
> disabled in the DT.
>
> Is there a way to get an interrupt number for request_irq() without
> querying the DT?
What is this interrupt precisely ? What emits it ? If it's coming from
the actual PCI bridge, then you can stick an interrupts property in the
PCI host bridge node in the DT just fine.
Cheers,
Ben.
More information about the Linuxppc-dev
mailing list