arch/mips/include/asm/mach-loongson/mem.h

   1 /*
   2  * Copyright (C) 2009 Lemote, Inc.
   3  * Author: Wu Zhangjin <wuzhangjin@gmail.com>
   4  *
   5  * This program is free software; you can redistribute  it and/or modify it
   6  * under  the terms of  the GNU General  Public License as published by the
   7  * Free Software Foundation;  either version 2 of the  License, or (at your
   8  * option) any later version.
   9  */
  10
  11 #ifndef __ASM_MACH_LOONGSON_MEM_H
  12 #define __ASM_MACH_LOONGSON_MEM_H
  13
  14 /*
  15  * high memory space
  16  *
  17  * in loongson2e, starts from 512M
  18  * in loongson2f, starts from 2G 256M
  19  */
  20 #ifdef CONFIG_CPU_LOONGSON2E
  21 #define LOONGSON_HIGHMEM_START  0x20000000
  22 #else
  23 #define LOONGSON_HIGHMEM_START  0x90000000
  24 #endif
  25
  26 /*
  27  * the peripheral registers(MMIO):
  28  *
  29  * On the Lemote Loongson 2e system, reside between 0x1000:0000 and 0x2000:0000.
  30  * On the Lemote Loongson 2f system, reside between 0x1000:0000 and 0x8000:0000.
  31  */
  32
  33 #define LOONGSON_MMIO_MEM_START 0x10000000
  34
  35 #ifdef CONFIG_CPU_LOONGSON2E
  36 #define LOONGSON_MMIO_MEM_END   0x20000000
  37 #else
  38 #define LOONGSON_MMIO_MEM_END   0x80000000
  39 #endif
  40
  41 #endif /* __ASM_MACH_LOONGSON_MEM_H */