ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/m68k/include/asm/div64.h b/marvell/linux/arch/m68k/include/asm/div64.h
new file mode 100644
index 0000000..365f39f
--- /dev/null
+++ b/marvell/linux/arch/m68k/include/asm/div64.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _M68K_DIV64_H
+#define _M68K_DIV64_H
+
+#ifdef CONFIG_CPU_HAS_NO_MULDIV64
+#include <asm-generic/div64.h>
+#else
+
+#include <linux/types.h>
+
+/* n = n / base; return rem; */
+
+#define do_div(n, base) ({ \
+ union { \
+ unsigned long n32[2]; \
+ unsigned long long n64; \
+ } __n; \
+ unsigned long __rem, __upper; \
+ unsigned long __base = (base); \
+ \
+ __n.n64 = (n); \
+ if ((__upper = __n.n32[0])) { \
+ asm ("divul.l %2,%1:%0" \
+ : "=d" (__n.n32[0]), "=d" (__upper) \
+ : "d" (__base), "0" (__n.n32[0])); \
+ } \
+ asm ("divu.l %2,%1:%0" \
+ : "=d" (__n.n32[1]), "=d" (__rem) \
+ : "d" (__base), "1" (__upper), "0" (__n.n32[1])); \
+ (n) = __n.n64; \
+ __rem; \
+})
+
+#endif /* CONFIG_CPU_HAS_NO_MULDIV64 */
+
+#endif /* _M68K_DIV64_H */