[POWERPC] Resolve the parent address of a PCI bus range

When parsing the OF "ranges" properties of PCI host busses to determine
the mapping of a PCI bus, we need to translate the "parent" address using
the prom_parse.c routines in order to obtain a CPU physical address.

This wasn't necessary while PCI busses were always at the root of the
device-tree but this is no longer the case on Cell where they can be
anywhere in the tree.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 88b7848..5ffab87 100644 (file)
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -967,11 +967,7 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
                res = NULL;
                pci_space = ranges[0];
                pci_addr = ((unsigned long)ranges[1] << 32) | ranges[2];
-
-               cpu_phys_addr = ranges[3];
-               if (na >= 2)
-                       cpu_phys_addr = (cpu_phys_addr << 32) | ranges[4];
-
+               cpu_phys_addr = of_translate_address(dev, &ranges[3]);
                size = ((unsigned long)ranges[na+3] << 32) | ranges[na+4];
                ranges += np;
                if (size == 0)