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hardware.h

/*
 * arch/arm/mach-lpc32xx/include/mach/hardware.h
 *
 * Copyright (c) 2005 MontaVista Software, Inc. <source@mvista.com>
 *
 * 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.
 */

#ifndef __ASM_ARCH_HARDWARE_H
#define __ASM_ARCH_HARDWARE_H

/*
 * Start of virtual addresses for IO devices
 */
#define IO_BASE         0xF0000000

/*
 * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0
 */
#define IO_ADDRESS(x)   (((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\
                   IO_BASE)

#define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x))
#define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff))

#endif

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