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-rw-r--r--arch/mn10300/kernel/io.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/mn10300/kernel/io.c b/arch/mn10300/kernel/io.c
new file mode 100644
index 000000000000..e96fdf6bb542
--- /dev/null
+++ b/arch/mn10300/kernel/io.c
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+/* MN10300 Misaligned multibyte-word I/O
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <asm/io.h>
+
+/*
+ * output data from a potentially misaligned buffer
+ */
+void __outsl(unsigned long addr, const void *buffer, int count)
+{
+ const unsigned char *buf = buffer;
+ unsigned long val;
+
+ while (count--) {
+ memcpy(&val, buf, 4);
+ outl(val, addr);
+ buf += 4;
+ }
+}
+EXPORT_SYMBOL(__outsl);