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authorIvan Kokshaysky <ink@jurassic.park.msu.ru>2007-05-23 17:50:02 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-05-31 19:56:37 -0400
commit73a74ed3a6f8fcb817fdffa2c2718f96d0108b7f (patch)
tree1f9ec603c1cfd0fa9eba12cdd5fd0af35399dca1 /arch/i386
parent3c92c57af9a24a08b8d2f76650b1209239914fcd (diff)
PCI: i386: fixup for Siemens Nixdorf AG FSC Multiprocessor Interrupt Controllers
Wolfgang gets: PCI: Cannot allocate resource region 0 of device 0000:00:04.0 PCI: Error while updating region 0000:00:04.0/0 (a8008000 != fec08000) Note that the BAR seems to have high address bits hardwired to fec00000. And device 0000:00:04.0 is 00:04.0 System peripheral: Siemens Nixdorf AG FSC Multiprocessor Interrupt Controller (rev 02) I'd guess that when we try to reassign this resource, PCI interrupts might just stop working. This could explain SCSI timeouts and other weird things. Cc: Wolfgang Erig <Wolfgang.Erig@gmx.de> Cc: Chuck Ebbert <cebbert@redhat.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/pci/fixup.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c
index b62eafb997bc..b95b42950ed4 100644
--- a/arch/i386/pci/fixup.c
+++ b/arch/i386/pci/fixup.c
@@ -436,3 +436,14 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY,
436 pci_early_fixup_cyrix_5530); 436 pci_early_fixup_cyrix_5530);
437DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, 437DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY,
438 pci_early_fixup_cyrix_5530); 438 pci_early_fixup_cyrix_5530);
439
440/*
441 * Siemens Nixdorf AG FSC Multiprocessor Interrupt Controller:
442 * prevent update of the BAR0, which doesn't look like a normal BAR.
443 */
444static void __devinit pci_siemens_interrupt_controller(struct pci_dev *dev)
445{
446 dev->resource[0].flags |= IORESOURCE_PCI_FIXED;
447}
448DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SIEMENS, 0x0015,
449 pci_siemens_interrupt_controller);