1/* 2 * arch/arm/mach-lpc32xx/include/mach/hardware.h 3 * 4 * Copyright (c) 2005 MontaVista Software, Inc. <source@mvista.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 17#ifndef __ASM_ARCH_HARDWARE_H 18#define __ASM_ARCH_HARDWARE_H 19 20/* 21 * Start of virtual addresses for IO devices 22 */ 23#define IO_BASE 0xF0000000 24 25/* 26 * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0 27 */ 28#define IO_ADDRESS(x) IOMEM(((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\ 29 IO_BASE) 30 31#define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x)) 32#define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff)) 33 34#endif 35