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io.h：源码内容

							/*
 * linux/include/asm-arm/arch-h720x/io.h
 *
 * Copyright (C) 2000 Steve Hill (sjhill@cotw.com)
 *
 * Changelog:
 *
 *  09-19-2001	JJKIM
 *  		Created from linux/include/asm-arm/arch-l7200/io.h
 *
 *  03-27-2003  Robert Schwebel <r.schwebel@pengutronix.de>:
 *  		re-unified header files for h720x
 */
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H
#include <asm/arch/hardware.h>
#define IO_SPACE_LIMIT 0xffffffff
#define __io(a)		((void __iomem *)(a))
#define __mem_pci(a)	(a)
#endif

						