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-rw-r--r--arch/sh/kernel/ioport.c41
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 000000000..f39446a65
--- /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);