Hi Grant,
I've been unable to boot mmotm on the G5 for a few weeks; and now that
the problem has reached Linus, I've bisected and it converges on your:
commit b5d937de0367d26f65b9af1aef5f2c34c1939be0
powerpc/pci: Make both ppc32 and ppc64 use sysdata for pci_controller
Currently, ppc32 uses sysdata for the pci_controller pointer, and
ppc64 uses it to hold the device_node pointer. This patch moves the
of_node pointer into (struct pci_bus*)->dev.of_node and
(struct pci_dev*)->dev.of_node so that sysdata can be converted to always
use the pci_controller pointer instead. It also fixes up the
allocating of pci devices so that the of_node pointer gets assigned
consistently and increments the ref count.
The last message I see on screen when booting is
mpic: ISU size: 124, shift: 7, mask: 7f
Usually that would be followed by
mpic: Initializing for 124 sources
but with your commit it just hangs; revert that commit,
from mmotm or from Linus's current git, and all is fine.
Config available privately on request. Noticing that patch is a
PPC OF PCI thing, and that I have CONFIG_PPC_OF_PLATFORM_PCI off,
I did try switching that on, but it made no difference.
Thanks,
Hugh
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