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 *  arch/arm/mach-footbridge/include/mach/memory.h
 *  Copyright (C) 1996-1999 Russell King.
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *  Changelog:
 *   20-Oct-1996 RMK    Created
 *   31-Dec-1997 RMK    Fixed definitions to reduce warnings.
 *   17-May-1998 DAG    Added __virt_to_bus and __bus_to_virt functions.
 *   21-Nov-1998 RMK    Changed __virt_to_bus and __bus_to_virt to macros.
 *   21-Mar-1999 RMK    Added PAGE_OFFSET for co285 architecture.
 *                Renamed to memory.h
 *                Moved PAGE_OFFSET and TASK_SIZE here

 * If we may be using add-in footbridge mode, then we must
 * use the out-of-line translation that makes use of the
#ifndef __ASSEMBLY__
extern unsigned long __virt_to_bus(unsigned long);
extern unsigned long __bus_to_virt(unsigned long);
extern unsigned long __pfn_to_bus(unsigned long);
extern unsigned long __bus_to_pfn(unsigned long);
#define __virt_to_bus   __virt_to_bus
#define __bus_to_virt   __bus_to_virt


 * The footbridge is programmed to expose the system RAM at 0xe0000000.
 * The requirement is that the RAM isn't placed at bus address 0, which
 * would clash with VGA cards.
#define BUS_OFFSET            0xe0000000
#define __virt_to_bus(x)      ((x) + (BUS_OFFSET - PAGE_OFFSET))
#define __bus_to_virt(x)      ((x) - (BUS_OFFSET - PAGE_OFFSET))
#define __pfn_to_bus(x)       (__pfn_to_phys(x) + (BUS_OFFSET - PHYS_OFFSET))
#define __bus_to_pfn(x)       __phys_to_pfn((x) - (BUS_OFFSET - PHYS_OFFSET))


#error "Undefined footbridge mode"


 * Cache flushing area.
#define FLUSH_BASE            0xf9000000

 * Physical DRAM offset.
#define PHYS_OFFSET           UL(0x00000000)

#define FLUSH_BASE_PHYS       0x50000000


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