path: root/arch/arm/kernel/bios32.c
diff options
authorRussell King <rmk+kernel@arm.linux.org.uk>2012-03-10 12:49:16 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-05-13 17:12:17 +0100
commitc23bfc3835173f5229b2503e3b616001a28affad (patch)
tree109f74ea29224587bead91289f55f2d30032b615 /arch/arm/kernel/bios32.c
parentdaeb4c0c3bf2df72d0cd6e4330bad9e2e520552b (diff)
ARM: PCI: provide a default bus scan implementation
Most PCI implementations perform simple root bus scanning. Rather than having each group of platforms provide a duplicated bus scan function, provide the PCI configuration ops structure via the hw_pci structure, and call the root bus scanning function from core ARM PCI code. Acked-by: Krzysztof HaƂasa <khc@pm.waw.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/bios32.c')
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index d22e35168e8..00a506f13f7 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -452,7 +452,11 @@ static void __init pcibios_init_hw(struct hw_pci *hw)
&iomem_resource, sys->mem_offset);
- sys->bus = hw->scan(nr, sys);
+ if (hw->scan)
+ sys->bus = hw->scan(nr, sys);
+ else
+ sys->bus = pci_scan_root_bus(NULL, sys->busnr,
+ hw->ops, sys, &sys->resources);
if (!sys->bus)
panic("PCI: unable to scan bus!");