arch/arm/mach-u300/include/mach/memory.h

   1 /*
   2  *
   3  * arch/arm/mach-u300/include/mach/memory.h
   4  *
   5  *
   6  * Copyright (C) 2007-2009 ST-Ericsson AB
   7  * License terms: GNU General Public License (GPL) version 2
   8  * Memory virtual/physical mapping constants.
   9  * Author: Linus Walleij <linus.walleij@stericsson.com>
  10  * Author: Jonas Aaberg <jonas.aberg@stericsson.com>
  11  */
  12
  13 #ifndef __MACH_MEMORY_H
  14 #define __MACH_MEMORY_H
  15
  16 #ifdef CONFIG_MACH_U300_DUAL_RAM
  17
  18 #define PHYS_OFFSET             UL(0x48000000)
  19 #define BOOT_PARAMS_OFFSET      (PHYS_OFFSET + 0x100)
  20
  21 #else
  22
  23 #ifdef CONFIG_MACH_U300_2MB_ALIGNMENT_FIX
  24 #define PHYS_OFFSET (0x28000000 + \
  25              (CONFIG_MACH_U300_ACCESS_MEM_SIZE - \
  26              (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024)
  27 #else
  28 #define PHYS_OFFSET (0x28000000 + \
  29              (CONFIG_MACH_U300_ACCESS_MEM_SIZE +        \
  30              (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024)
  31 #endif
  32 #define BOOT_PARAMS_OFFSET (0x28000000 + \
  33             (CONFIG_MACH_U300_ACCESS_MEM_SIZE +         \
  34             (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024 + 0x100)
  35 #endif
  36
  37 /*
  38  * TCM memory whereabouts
  39  */
  40 #define ITCM_OFFSET     0xffff2000
  41 #define ITCM_END        0xffff3fff
  42 #define DTCM_OFFSET     0xffff4000
  43 #define DTCM_END        0xffff5fff
  44
  45 /*
  46  * We enable a real big DMA buffer if need be.
  47  */
  48 #define CONSISTENT_DMA_SIZE SZ_4M
  49
  50 #endif