diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index e1656fc..7524689 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -56,8 +56,8 @@
 static inline unsigned long do_swap(volatile unsigned long *ptr,
 				    unsigned long val)
 {
-	__asm__ __volatile__("swapa [%1] %2, %0\n\t" : "=&r"(val)
-			     : "r"(ptr), "i"(ASI_LEON_DCACHE_MISS)
+	__asm__ __volatile__("swapa [%2] %3, %0\n\t" : "=&r"(val)
+			     : "0"(val), "r"(ptr), "i"(ASI_LEON_DCACHE_MISS)
 			     : "memory");
 	return val;
 }