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linux-next/arch/arm/mach-lpc32xx/include/mach/hardware.h
Kevin Wells 437db59036 ARM: LPC32XX: Initial arch header files
Header files for the LPC32xx arch

Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-07-27 03:08:08 -07:00

35 lines
1.1 KiB
C

/*
* 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