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

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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>
This commit is contained in:
Pavel Roskin 2007-02-04 03:16:08 -05:00 committed by Paul Mackerras
parent 6e47a0f382
commit a1fdf6940a
1 changed files with 2 additions and 0 deletions
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arch/powerpc/sysdev/grackle.c
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@ -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 ??? */