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-rw-r--r--arch/nios2/include/asm/io.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/nios2/include/asm/io.h b/arch/nios2/include/asm/io.h
index 8ee48e08d3..59eea73ac2 100644
--- a/arch/nios2/include/asm/io.h
+++ b/arch/nios2/include/asm/io.h
@@ -22,6 +22,8 @@
#include <asm/byteorder.h>
+#define IO_SPACE_LIMIT 0
+
#define __raw_writeb(v, a) (*(volatile unsigned char *)(a) = (v))
#define __raw_writew(v, a) (*(volatile unsigned short *)(a) = (v))
#define __raw_writel(v, a) (*(volatile unsigned int *)(a) = (v))