[POWERPC] Assign all PCI busses on G3 Blue & White

G3 Blue & White is misconfigured by default so that CardBus controllers
in PCI slots don't work.  The PCI bridge is programmed to only allow
access to bus 1 but not higher busses.

The patch forces the PCI busses to be reassigned if a Grackle controller
is found and the machine identifies itself as "PowerMac1,1"

Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/powerpc/sysdev/grackle.c b/arch/powerpc/sysdev/grackle.c
index b6ec793a23be..42053625f498 100644
--- a/arch/powerpc/sysdev/grackle.c
+++ b/arch/powerpc/sysdev/grackle.c
@@ -56,6 +56,8 @@ static inline void grackle_set_loop_snoop(struct pci_controller *bp, int enable)
 void __init setup_grackle(struct pci_controller *hose)
 {
         setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
+        if (machine_is_compatible("PowerMac1,1"))
+                pci_assign_all_buses = 1;
         if (machine_is_compatible("AAPL,PowerBook1998"))
                 grackle_set_loop_snoop(hose, 1);
 #if 0   /* Disabled for now, HW problems ??? */