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-rw-r--r--include/linux/io.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/io.h b/include/linux/io.h
index 1b36a2299e..a104b7e69f 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -5,6 +5,22 @@
#ifndef _LINUX_IO_H
#define _LINUX_IO_H
+#include <linux/compiler.h>
+#include <linux/types.h>
#include <asm/io.h>
+#ifndef CONFIG_HAVE_ARCH_IOREMAP
+static inline void __iomem *ioremap(resource_size_t offset,
+ resource_size_t size)
+{
+ return (void __iomem *)(unsigned long)offset;
+}
+
+static inline void iounmap(void __iomem *addr)
+{
+}
+
+#define devm_ioremap(dev, offset, size) ioremap(offset, size)
+#endif
+
#endif /* _LINUX_IO_H */