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Diffstat (limited to 'arch/i386/pci/i386.c')
-rw-r--r--arch/i386/pci/i386.c49
1 files changed, 16 insertions, 33 deletions
diff --git a/arch/i386/pci/i386.c b/arch/i386/pci/i386.c
index 93a364c8215..3cc480998a4 100644
--- a/arch/i386/pci/i386.c
+++ b/arch/i386/pci/i386.c
@@ -170,43 +170,26 @@ static void __init pcibios_allocate_resources(int pass)
static int __init pcibios_assign_resources(void)
{
struct pci_dev *dev = NULL;
- int idx;
- struct resource *r;
-
- for_each_pci_dev(dev) {
- int class = dev->class >> 8;
-
- /* Don't touch classless devices and host bridges */
- if (!class || class == PCI_CLASS_BRIDGE_HOST)
- continue;
-
- for(idx=0; idx<6; idx++) {
- r = &dev->resource[idx];
-
- /*
- * Don't touch IDE controllers and I/O ports of video cards!
- */
- if ((class == PCI_CLASS_STORAGE_IDE && idx < 4) ||
- (class == PCI_CLASS_DISPLAY_VGA && (r->flags & IORESOURCE_IO)))
- continue;
-
- /*
- * We shall assign a new address to this resource, either because
- * the BIOS forgot to do so or because we have decided the old
- * address was unusable for some reason.
- */
- if (!r->start && r->end)
- pci_assign_resource(dev, idx);
- }
+ struct resource *r, *pr;
- if (pci_probe & PCI_ASSIGN_ROMS) {
+ if (!(pci_probe & PCI_ASSIGN_ROMS)) {
+ /* Try to use BIOS settings for ROMs, otherwise let
+ pci_assign_unassigned_resources() allocate the new
+ addresses. */
+ for_each_pci_dev(dev) {
r = &dev->resource[PCI_ROM_RESOURCE];
- r->end -= r->start;
- r->start = 0;
- if (r->end)
- pci_assign_resource(dev, PCI_ROM_RESOURCE);
+ if (!r->flags || !r->start)
+ continue;
+ pr = pci_find_parent_resource(dev, r);
+ if (!pr || request_resource(pr, r) < 0) {
+ r->end -= r->start;
+ r->start = 0;
+ }
}
}
+
+ pci_assign_unassigned_resources();
+
return 0;
}