1 files changed, 41 insertions, 0 deletions
diff --git a/arch/sh/kernel/ioport.c b/arch/sh/kernel/ioport.c
new file mode 100644
index 0000000000..f39446a658
--- /dev/null
+++ b/arch/sh/kernel/ioport.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/sh/kernel/ioport.c
+ *
+ * Copyright (C) 2000  Niibe Yutaka
+ * Copyright (C) 2005 - 2007 Paul Mundt
+ */
+#include <linux/module.h>
+#include <linux/io.h>
+#include <asm/io_trapped.h>
+
+unsigned long sh_io_port_base __read_mostly = -1;
+EXPORT_SYMBOL(sh_io_port_base);
+
+void __iomem *__ioport_map(unsigned long addr, unsigned int size)
+{
+	if (sh_mv.mv_ioport_map)
+		return sh_mv.mv_ioport_map(addr, size);
+
+	return (void __iomem *)(addr + sh_io_port_base);
+}
+EXPORT_SYMBOL(__ioport_map);
+
+void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+	void __iomem *ret;
+
+	ret = __ioport_map_trapped(port, nr);
+	if (ret)
+		return ret;
+
+	return __ioport_map(port, nr);
+}
+EXPORT_SYMBOL(ioport_map);
+
+void ioport_unmap(void __iomem *addr)
+{
+	if (sh_mv.mv_ioport_unmap)
+		sh_mv.mv_ioport_unmap(addr);
+}
+EXPORT_SYMBOL(ioport_unmap);