Fwd: powerpc with gigabit card hanging

[Whoops, SMTP problem.  Sorry if it's a duplicate now.]

Begin forwarded message:

From: Segher Boessenkool <redacted>
Date: 28 september 2004 0:39:32 GMT-05:00
To: Matt Porter <mporter@kernel.crashing.org>
Cc: David Gardiner <redacted>, <redacted>
Subject: Re: powerpc with gigabit card hanging

quoted

quoted

What kernel are you using?

2.6.whatever, and I've used 2.4 in the past I believe.

quoted

quoted

it's just that the irq's I'm getting for the
gigabit devices are zero (dual gigabit ethernet card) for the 2.6.9-rc2
plus patchs kernel but for the 2.4 series I was getting 12 and 9 as can
be seen below and configuring the devices worked fine.

PCI device IRQs are normally retrieved straight from the PCI device
itself.  Sounds like a firmware problem (or the bootloader, if that
sets up the PCI devices for you).

quoted

irqs for PCI devices do not come from the driver, they are platform
specific.  If you are having problems with the interrupt reported
by xyz PCI driver then that is something wrong with your platform.
On pmac, interrupt routing is retrieved from OF.

I believe Linux for PowerMac actually gets the IRQ number straight
from the device.  Some other routing might be gotten out of the OF
device-tree, yes.


Segher