| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007 Advanced Micro Devices, Inc. |
| * Copyright (C) 2009-2010 coresystems GmbH |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef __DEVICE_OPROM_REALMODE_X86_H__ |
| #define __DEVICE_OPROM_REALMODE_X86_H__ |
| |
| #include <arch/cpu.h> |
| |
| #define REALMODE_BASE ((void *)0x600) |
| |
| struct realmode_idt { |
| u16 offset, cs; |
| }; |
| |
| void x86_exception(struct eregs *info); |
| |
| /* From x86_asm.S */ |
| extern unsigned char __idt_handler; |
| extern unsigned int __idt_handler_size; |
| extern unsigned char __realmode_code; |
| extern unsigned int __realmode_code_size; |
| |
| extern void (*realmode_call)(u32 addr, u32 eax, u32 ebx, u32 ecx, u32 edx, |
| u32 esi, u32 edi) asmlinkage; |
| |
| extern void (*realmode_interrupt)(u32 intno, u32 eax, u32 ebx, u32 ecx, u32 edx, |
| u32 esi, u32 edi) asmlinkage; |
| |
| #define FAKE_MEMORY_SIZE (1024*1024) // only 1MB |
| #define INITIAL_EBDA_SEGMENT 0xF600 |
| #define INITIAL_EBDA_SIZE 0x400 |
| |
| int int10_handler(void); |
| int int12_handler(void); |
| int int16_handler(void); |
| int int1a_handler(void); |
| |
| #endif |