release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-rpc/include/mach/memory.h

   1 /*
   2  *  arch/arm/mach-rpc/include/mach/memory.h
   3  *
   4  *  Copyright (C) 1996,1997,1998 Russell King.
   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 version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  *  Changelog:
  11  *   20-Oct-1996 RMK    Created
  12  *   31-Dec-1997 RMK    Fixed definitions to reduce warnings
  13  *   11-Jan-1998 RMK    Uninlined to reduce hits on cache
  14  *   08-Feb-1998 RMK    Added __virt_to_bus and __bus_to_virt
  15  *   21-Mar-1999 RMK    Renamed to memory.h
  16  *               RMK    Added TASK_SIZE and PAGE_OFFSET
  17  */
  18 #ifndef __ASM_ARCH_MEMORY_H
  19 #define __ASM_ARCH_MEMORY_H
  20
  21 /*
  22  * Physical DRAM offset.
  23  */
  24 #define PHYS_OFFSET     UL(0x10000000)
  25
  26 /*
  27  * Cache flushing area - ROM
  28  */
  29 #define FLUSH_BASE_PHYS         0x00000000
  30 #define FLUSH_BASE              0xdf000000
  31
  32 /*
  33  * Sparsemem support.  Each section is a maximum of 64MB.  The sections
  34  * are offset by 128MB and can cover 128MB, so that gives us a maximum
  35  * of 29 physmem bits.
  36  */
  37 #define MAX_PHYSMEM_BITS        29
  38 #define SECTION_SIZE_BITS       26
  39
  40 #endif