1 files changed, 63 insertions, 0 deletions

diff --git a/arch/m68knommu/lib/memcpy.c b/arch/m68knommu/lib/memcpy.c
new file mode 100644
index 000000000000..0d5577569e4c
--- /dev/null
+++ b/arch/m68knommu/lib/memcpy.c
@@ -0,0 +1,63 @@
+
+#include <linux/types.h>
+#include <linux/autoconf.h>
+
+void * memcpy(void * to, const void * from, size_t n)
+{
+#ifdef CONFIG_COLDFIRE
+  void *xto = to;
+  size_t temp;
+
+  if (!n)
+    return xto;
+  if ((long) to & 1)
+    {
+      char *cto = to;
+      const char *cfrom = from;
+      *cto++ = *cfrom++;
+      to = cto;
+      from = cfrom;
+      n--;
+    }
+  if (n > 2 && (long) to & 2)
+    {
+      short *sto = to;
+      const short *sfrom = from;
+      *sto++ = *sfrom++;
+      to = sto;
+      from = sfrom;
+      n -= 2;
+    }
+  temp = n >> 2;
+  if (temp)
+    {
+      long *lto = to;
+      const long *lfrom = from;
+      for (; temp; temp--)
+        *lto++ = *lfrom++;
+      to = lto;
+      from = lfrom;
+    }
+  if (n & 2)
+    {
+      short *sto = to;
+      const short *sfrom = from;
+      *sto++ = *sfrom++;
+      to = sto;
+      from = sfrom;
+    }
+  if (n & 1)
+    {
+      char *cto = to;
+      const char *cfrom = from;
+      *cto = *cfrom;
+    }
+  return xto;
+#else
+  const char *c_from = from;
+  char *c_to = to;
+  while (n-- > 0)
+    *c_to++ = *c_from++;
+  return((void *) to);
+#endif
+}