[PATCH] powerpc: Recognize /chaos bridge on old pmacs as PCI
paulus at samba.org
Sat Jan 14 14:34:36 EST 2006
The first generation of PCI powermacs had a host bridge called /chaos
which was for all intents and purposes a PCI host bridge, but has a
device_type of "vci" in the device tree (presumably it's not really
PCI at the hardware level or something).
The OF parsing stuff in arch/powerpc/kernel/prom_parse.c currently
doesn't recognize it as a PCI bridge, which means that controlfb.c
can't get its device addresses.
This makes prom_parse.c recognize a device_type of "vci" as indicating
a PCI host bridge. With this, controlfb works again.
Signed-off-by: Paul Mackerras <paulus at samba.org>
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 309ae1d..a8099c8 100644
@@ -113,7 +113,8 @@ static unsigned int of_bus_default_get_f
static int of_bus_pci_match(struct device_node *np)
- return !strcmp(np->type, "pci");
+ /* "vci" is for the /chaos bridge on 1st-gen PCI powermacs */
+ return !strcmp(np->type, "pci") || !strcmp(np->type, "vci");
static void of_bus_pci_count_cells(struct device_node *np,
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