[PATCH 1/3] Let subordinate transparent bridges be transparent.
Jon Loeliger
jdl at freescale.com
Wed May 30 04:22:54 EST 2007
From: York Sun <yorksun at freescale.com>
In pcibios_fixup_bus(), bridges that are subordinate
to transparent bridges were still relocating their
IORESOURCE_IO start and end values.
Fix this by preventing the transparent bridge from
relocating the start and end values, thus allowing the
subordinate non-transparent bridge full molestation rights.
Signed-off-by: York Sun <yorksun at freescale.com>
Signed-off-by: Andy Fleming <afleming at freescale.com>
Signed-off-by: Jon Loeliger <jdl at freescale.com>
---
arch/powerpc/kernel/pci_32.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index e66064b..102264c 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -1372,7 +1372,9 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
continue;
if (!res->flags)
continue;
- if (io_offset && (res->flags & IORESOURCE_IO)) {
+ if (!bus->self->transparent
+ && io_offset
+ && (res->flags & IORESOURCE_IO)) {
res->start += io_offset;
res->end += io_offset;
} else if (hose->pci_mem_offset
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