1 files changed, 9 insertions, 3 deletions

diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index ae2e2a31a705..68bcd2824bc6 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -29,6 +29,7 @@
 #include <asm/delay.h>
 #include <asm/uaccess.h>
 #include <asm/lmb.h>
+#include <asm/udbg.h>
 
 struct rtas_t rtas = {
         .lock = SPIN_LOCK_UNLOCKED
@@ -52,7 +53,7 @@ EXPORT_SYMBOL(rtas_flash_term_hook);
  * are designed only for very early low-level debugging, which
  * is why the token is hard-coded to 10.
  */
-void call_rtas_display_status(unsigned char c)
+static void call_rtas_display_status(char c)
 {
         struct rtas_args *args = &rtas.args;
         unsigned long s;
@@ -65,14 +66,14 @@ void call_rtas_display_status(unsigned char c)
         args->nargs = 1;
         args->nret  = 1;
         args->rets  = (rtas_arg_t *)&(args->args[1]);
-        args->args[0] = (int)c;
+        args->args[0] = (unsigned char)c;
 
         enter_rtas(__pa(args));
 
         spin_unlock_irqrestore(&rtas.lock, s);
 }
 
-void call_rtas_display_status_delay(unsigned char c)
+static void call_rtas_display_status_delay(char c)
 {
         static int pending_newline = 0;  /* did last write end with unprinted newline? */
         static int width = 16;
@@ -96,6 +97,11 @@ void call_rtas_display_status_delay(unsigned char c)
         }
 }
 
+void __init udbg_init_rtas(void)
+{
+        udbg_putc = call_rtas_display_status_delay;
+}
+
 void rtas_progress(char *s, unsigned short hex)
 {
         struct device_node *root;