From c23bfc3835173f5229b2503e3b616001a28affad Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 10 Mar 2012 12:49:16 +0000 Subject: ARM: PCI: provide a default bus scan implementation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Hałasa Signed-off-by: Russell King --- arch/arm/kernel/bios32.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'arch/arm/kernel/bios32.c') diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index d22e35168e88..00a506f13f70 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!"); -- cgit v1.2.3