diff --git a/arch/arm/mach-at91/include/mach/system_rev.h b/arch/arm/mach-at91/include/mach/system_rev.h
deleted file mode 100644
index ef79a9aafc08..000000000000
--- a/arch/arm/mach-at91/include/mach/system_rev.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
- *
- * Under GPLv2 only
- */
-
-#ifndef __ARCH_SYSTEM_REV_H__
-#define __ARCH_SYSTEM_REV_H__
-
-#include <asm/system_info.h>
-
-/*
- * board revision encoding
- * mach specific
- * the 16-31 bit are reserved for at91 generic information
- *
- * bit 31:
- *	0 => nand 8 bit
- *	1 => nand 16 bit
- */
-#define BOARD_HAVE_NAND_16BIT	(1 << 31)
-static inline int board_have_nand_16bit(void)
-{
-	return (system_rev & BOARD_HAVE_NAND_16BIT) ? 1 : 0;
-}
-
-#endif /* __ARCH_SYSTEM_REV_H__ */