arch/mips/include/asm/mach-loongson64/mem.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2009 Lemote, Inc.
   4  * Author: Wu Zhangjin <wuzhangjin@gmail.com>
   5  */
   6
   7 #ifndef __ASM_MACH_LOONGSON64_MEM_H
   8 #define __ASM_MACH_LOONGSON64_MEM_H
   9
  10 /*
  11  * high memory space
  12  *
  13  * in loongson2e, starts from 512M
  14  * in loongson2f, starts from 2G 256M
  15  */
  16 #ifdef CONFIG_CPU_LOONGSON2E
  17 #define LOONGSON_HIGHMEM_START  0x20000000
  18 #else
  19 #define LOONGSON_HIGHMEM_START  0x90000000
  20 #endif
  21
  22 /*
  23  * the peripheral registers(MMIO):
  24  *
  25  * On the Lemote Loongson 2e system, reside between 0x1000:0000 and 0x2000:0000.
  26  * On the Lemote Loongson 2f system, reside between 0x1000:0000 and 0x8000:0000.
  27  */
  28
  29 #define LOONGSON_MMIO_MEM_START 0x10000000
  30
  31 #ifdef CONFIG_CPU_LOONGSON2E
  32 #define LOONGSON_MMIO_MEM_END   0x20000000
  33 #else
  34 #define LOONGSON_MMIO_MEM_END   0x80000000
  35 #endif
  36
  37 #endif /* __ASM_MACH_LOONGSON64_MEM_H */