3 * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #ifndef _U_BOOT_I386_H_
25 #define _U_BOOT_I386_H_ 1
27 /* for the following variables, see start.S */
28 extern ulong i386boot_start; /* code start (in flash) */
29 extern ulong i386boot_end; /* code end (in flash) */
30 extern ulong i386boot_romdata_start;/* datasegment in flash (also code+rodata end) */
31 extern ulong i386boot_romdata_dest; /* data location segment in ram */
32 extern ulong i386boot_romdata_size; /* size of data segment */
33 extern ulong i386boot_bss_start; /* bss start */
34 extern ulong i386boot_bss_size; /* bss size */
35 extern ulong i386boot_stack_end; /* first usable RAM address after bss and stack */
36 extern ulong i386boot_ram_end; /* end of ram */
38 extern ulong i386boot_realmode; /* start of realmode entry code */
39 extern ulong i386boot_realmode_size;/* size of realmode entry code */
40 extern ulong i386boot_bios; /* start of BIOS emulation code */
41 extern ulong i386boot_bios_size; /* size of BIOS emulation code */
48 void timer_isr(void *);
49 typedef void (timer_fnc_t) (void);
50 int register_timer_isr (timer_fnc_t *isr_func);
52 /* Architecture specific - can be in cpu/i386/, lib_i386/, or $(BOARD)/ */
55 /* cpu/.../interrupts.c */
56 int cpu_init_interrupts(void);
62 void isa_unmap_rom(u32 addr);
63 u32 isa_map_rom(u32 bus_addr, int size);
66 int video_bios_init(void);
70 #endif /* _U_BOOT_I386_H_ */