From: Jon Loeliger <jdl@freescale.com>
To: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>
Subject: [PATCH 1/3] Let subordinate transparent bridges be transparent.
Date: Tue, 29 May 2007 13:22:54 -0500 [thread overview]
Message-ID: <1180462974.13106.61.camel@ld0161-tx32> (raw)
From: York Sun <yorksun@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@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jon Loeliger <jdl@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
next reply other threads:[~2007-05-29 18:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-29 18:22 Jon Loeliger [this message]
2007-05-31 6:53 ` [PATCH 1/3] Let subordinate transparent bridges be transparent Zang Roy-r61911
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