diff --git a/arch/microblaze/lib/muldi3.c b/arch/microblaze/lib/muldi3.c
index 0585bccb7fad2f30d6ad8110eff7bc0b80771dff..d3659244ab6fac432bce8ff362bbf12dd5bc68cc 100644
--- a/arch/microblaze/lib/muldi3.c
+++ b/arch/microblaze/lib/muldi3.c
@@ -2,32 +2,28 @@
 
 #include "libgcc.h"
 
-#define DWtype long long
-#define UWtype unsigned long
-#define UHWtype unsigned short
-
 #define W_TYPE_SIZE 32
 
-#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
-#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
-#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
+#define __ll_B ((unsigned long) 1 << (W_TYPE_SIZE / 2))
+#define __ll_lowpart(t) ((unsigned long) (t) & (__ll_B - 1))
+#define __ll_highpart(t) ((unsigned long) (t) >> (W_TYPE_SIZE / 2))
 
 /* If we still don't have umul_ppmm, define it using plain C.  */
 #if !defined(umul_ppmm)
 #define umul_ppmm(w1, w0, u, v)						\
 	do {								\
-		UWtype __x0, __x1, __x2, __x3;				\
-		UHWtype __ul, __vl, __uh, __vh;				\
+		unsigned long __x0, __x1, __x2, __x3;			\
+		unsigned short __ul, __vl, __uh, __vh;			\
 									\
 		__ul = __ll_lowpart(u);					\
 		__uh = __ll_highpart(u);				\
 		__vl = __ll_lowpart(v);					\
 		__vh = __ll_highpart(v);				\
 									\
-		__x0 = (UWtype) __ul * __vl;				\
-		__x1 = (UWtype) __ul * __vh;				\
-		__x2 = (UWtype) __uh * __vl;				\
-		__x3 = (UWtype) __uh * __vh;				\
+		__x0 = (unsigned long) __ul * __vl;			\
+		__x1 = (unsigned long) __ul * __vh;			\
+		__x2 = (unsigned long) __uh * __vl;			\
+		__x3 = (unsigned long) __uh * __vh;			\
 									\
 		__x1 += __ll_highpart(__x0); /* this can't give carry */\
 		__x1 += __x2; /* but this indeed can */			\
@@ -47,14 +43,14 @@
 	})
 #endif
 
-DWtype __muldi3(DWtype u, DWtype v)
+long long __muldi3(long long u, long long v)
 {
 	const DWunion uu = {.ll = u};
 	const DWunion vv = {.ll = v};
 	DWunion w = {.ll = __umulsidi3(uu.s.low, vv.s.low)};
 
-	w.s.high += ((UWtype) uu.s.low * (UWtype) vv.s.high
-		+ (UWtype) uu.s.high * (UWtype) vv.s.low);
+	w.s.high += ((unsigned long) uu.s.low * (unsigned long) vv.s.high
+		+ (unsigned long) uu.s.high * (unsigned long) vv.s.low);
 
 	return w.ll;
 }