From: Paul Mackerras Date: Sat, 14 Jan 2006 04:08:50 +0000 (+1100) Subject: [PATCH] powerpc: Recognize /chaos bridge on old pmacs as PCI X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d5f079000b20887bfbc84d772a27709c5665e652;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git [PATCH] powerpc: Recognize /chaos bridge on old pmacs as PCI 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. Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index 309ae1d5fa77..a8099c806150 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -113,7 +113,8 @@ static unsigned int of_bus_default_get_flags(u32 *addr) 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,