1. 根目录:
2. arch
3. arm
4. mach-integrator
5. include
6. mach
7. hardware.h

/*
 *  arch/arm/mach-integrator/include/mach/hardware.h
 *
 *  This file contains the hardware definitions of the Integrator.
 *
 *  Copyright (C) 1999 ARM Limited.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#ifndef __ASM_ARCH_HARDWARE_H
#define __ASM_ARCH_HARDWARE_H

#include <asm/sizes.h>

/*
 * Where in virtual memory the IO devices (timers, system controllers
 * and so on)
 */
#define IO_BASE			0xF0000000                 // VA of IO 
#define IO_SIZE			0x0B000000                 // How much?
#define IO_START		INTEGRATOR_HDR_BASE        // PA of IO

/* macro to get at IO space when running virtually */
#ifdef CONFIG_MMU
#define IO_ADDRESS(x)	(((x) & 0x000fffff) | (((x) >> 4) & 0x0ff00000) | IO_BASE)
#else
#define IO_ADDRESS(x)	(x)
#endif

#define __io_address(n)		((void __iomem *)IO_ADDRESS(n))

#endif