[PATCH] powerpc: Unify udbg (#2)
This patch unifies udbg for both ppc32 and ppc64 when building the
merged achitecture. xmon now has a single "back end". The powermac udbg
stuff gets enriched with some ADB capabilities and btext output. In
addition, the early_init callback is now called on ppc32 as well,
approx. in the same order as ppc64 regarding device-tree manipulations.
The init sequences of ppc32 and ppc64 are getting closer, I'll unify
them in a later patch.
For now, you can force udbg to the scc using "sccdbg" or to btext using
"btextdbg" on powermacs. I'll implement a cleaner way of forcing udbg
output to something else than the autodetected OF output device in a
later patch.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/include/asm-powerpc/udbg.h b/include/asm-powerpc/udbg.h
index 4049a96..8d6b44c 100644
--- a/include/asm-powerpc/udbg.h
+++ b/include/asm-powerpc/udbg.h
@@ -13,8 +13,8 @@
#include <linux/compiler.h>
#include <linux/init.h>
-extern void (*udbg_putc)(unsigned char c);
-extern unsigned char (*udbg_getc)(void);
+extern void (*udbg_putc)(char c);
+extern char (*udbg_getc)(void);
extern int (*udbg_getc_poll)(void);
extern void udbg_puts(const char *s);
@@ -30,5 +30,8 @@
unsigned int clock);
struct device_node;
-extern void udbg_init_scc(struct device_node *np);
+extern void udbg_scc_init(int force_scc);
+extern int udbg_adb_init(int force_btext);
+extern void udbg_adb_init_early(void);
+
#endif /* _ASM_POWERPC_UDBG_H */