src/arch/x86/include/arch/ebda.h

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2012 The Chromium OS Authors. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; version 2 of
   9  * the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #ifndef __ARCH_EBDA_H
  18 #define __ARCH_EBDA_H
  19
  20 #define X86_BDA_SIZE            0x200
  21 #define X86_BDA_BASE            (void *)0x400
  22 #define X86_EBDA_SEGMENT        (void *)0x40e
  23 #define X86_EBDA_LOWMEM         (void *)0x413
  24
  25 #define DEFAULT_EBDA_LOWMEM     (1024 << 10)
  26 #define DEFAULT_EBDA_SEGMENT    0xF600
  27 #define DEFAULT_EBDA_SIZE       0x400
  28
  29 void setup_ebda(u32 low_memory_size, u16 ebda_segment, u16 ebda_size);
  30 void setup_default_ebda(void);
  31
  32 #endif