diff --git a/include/asm-m32r/div64.h b/include/asm-m32r/div64.h
new file mode 100644
index 0000000..417a51b
--- /dev/null
+++ b/include/asm-m32r/div64.h
@@ -0,0 +1,38 @@
+#ifndef _ASM_M32R_DIV64
+#define _ASM_M32R_DIV64
+
+/* $Id$ */
+
+/* unsigned long long division.
+ * Input:
+ *  unsigned long long  n
+ *  unsigned long  base
+ * Output:
+ *  n = n / base;
+ *  return value = n % base;
+ */
+#define do_div(n, base)						\
+({								\
+	unsigned long _res, _high, _mid, _low;			\
+								\
+	_low = (n) & 0xffffffffUL;				\
+	_high = (n) >> 32;					\
+	if (_high) {						\
+		_mid = (_high % (unsigned long)(base)) << 16;	\
+		_high = _high / (unsigned long)(base);		\
+		_mid += _low >> 16;				\
+		_low &= 0x0000ffffUL;				\
+		_low += (_mid % (unsigned long)(base)) << 16;	\
+		_mid = _mid / (unsigned long)(base);		\
+		_res = _low % (unsigned long)(base);		\
+		_low = _low / (unsigned long)(base);		\
+		n = _low + ((long long)_mid << 16) +		\
+			((long long)_high << 32);		\
+	} else {						\
+		_res = _low % (unsigned long)(base);		\
+		n = (_low / (unsigned long)(base));		\
+	}							\
+	_res;							\
+})
+
+#endif  /* _ASM_M32R_DIV64 */