1 files changed, 14 insertions, 1 deletions

diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 28626ec2d289..0af3772efcb7 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -30,7 +30,20 @@ static void putstr(const char *ptr);
 #include <asm/arch/uncompress.h>
 
 #ifdef CONFIG_DEBUG_ICEDCC
-extern void icedcc_putc(int ch);
+static void icedcc_putc(int ch)
+{
+        int status, i = 0x4000000;
+
+        do {
+                if (--i < 0)
+                        return;
+
+                asm("mrc p14, 0, %0, c0, c0, 0" : "=r" (status));
+        } while (status & 2);
+
+        asm("mcr p15, 0, %0, c1, c0, 0" : : "r" (ch));
+}
+
 #define putc(ch)        icedcc_putc(ch)
 #define flush() do { } while (0)
 #endif