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powerpc/pci: Merge ppc32 and ppc64 versions of phb_scan()

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The two versions are doing almost exactly the same thing.  No need to
maintain them as separate files.  This patch also has the side effect
of making the PCI device tree scanning code available to 32 bit powerpc
machines, but no board ports actually make use of this feature at this
point.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Grant Likely
2009-08-28 08:58:16 +00:00
committed by Benjamin Herrenschmidt
parent c5b20d3926
commit 0ed2c722c6
7 changed files with 61 additions and 66 deletions
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25
arch/powerpc/kernel/pci_32.c
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@@ -354,36 +354,15 @@ pci_create_OF_bus_map(void)
}
}
static void __devinit pcibios_scan_phb(struct pci_controller *hose)
void __devinit pcibios_setup_phb_io_space(struct pci_controller *hose)
{
struct pci_bus *bus;
struct device_node *node = hose->dn;
unsigned long io_offset;
struct resource *res = &hose->io_resource;
pr_debug("PCI: Scanning PHB %s\n",
node ? node->full_name : "<NO NAME>");
/* Create an empty bus for the toplevel */
bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose);
if (bus == NULL) {
printk(KERN_ERR "Failed to create bus for PCI domain %04x\n",
hose->global_number);
return;
}
bus->secondary = hose->first_busno;
hose->bus = bus;
/* Fixup IO space offset */
io_offset = (unsigned long)hose->io_base_virt - isa_io_base;
res->start = (res->start + io_offset) & 0xffffffffu;
res->end = (res->end + io_offset) & 0xffffffffu;
/* Wire up PHB bus resources */
pcibios_setup_phb_resources(hose);
/* Scan children */
hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
}
static int __init pcibios_init(void)
@@ -401,7 +380,7 @@ static int __init pcibios_init(void)
if (pci_assign_all_buses)
hose->first_busno = next_busno;
hose->last_busno = 0xff;
pcibios_scan_phb(hose);
pcibios_scan_phb(hose, hose);
pci_bus_add_devices(hose->bus);
if (pci_assign_all_buses || next_busno <= hose->last_busno)
next_busno = hose->last_busno + pcibios_assign_bus_offset;