[POWERPC] 4xx: Add early udbg support for 40x processors
This adds some basic real mode based early udbg support for 40x
in order to debug things more easily
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/include/asm-powerpc/udbg.h b/include/asm-powerpc/udbg.h
index a9e0b0e..6418cee 100644
--- a/include/asm-powerpc/udbg.h
+++ b/include/asm-powerpc/udbg.h
@@ -48,6 +48,7 @@
extern void __init udbg_init_debug_beat(void);
extern void __init udbg_init_btext(void);
extern void __init udbg_init_44x_as1(void);
+extern void __init udbg_init_40x_realmode(void);
extern void __init udbg_init_cpm(void);
#endif /* __KERNEL__ */