[PATCH] powerpc: Fix early btext debug on PowerMac

The early btext debug wouldn't work on PowerMac when booted from BootX
due to the code looking for the wrong property name.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

 arch/powerpc/kernel/btext.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Index: linux-work/arch/powerpc/kernel/btext.c
===================================================================

--- linux-work.orig/arch/powerpc/kernel/btext.c	2007-11-13 13:39:09.000000000 +1100
+++ linux-work/arch/powerpc/kernel/btext.c	2007-11-13 13:43:23.000000000 +1100

@@ -186,7 +186,9 @@ int btext_initialize(struct device_node 
 		pitch = *prop;
 	if (pitch == 1)
 		pitch = 0x1000;
-	prop = of_get_property(np, "address", NULL);
+	prop = of_get_property(np, "linux,bootx-addr", NULL);
+	if (prop == NULL)
+		prop = of_get_property(np, "address", NULL);
 	if (prop)
 		address = *prop;