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wdenk2262cfe2002-11-18 00:14:45 +00001/*
2 * (C) Copyright 2002
Albert ARIBAUDfa82f872011-08-04 18:45:45 +02003 * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
wdenk2262cfe2002-11-18 00:14:45 +00004 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 */
23
wdenk3bac3512003-03-12 10:41:04 +000024#ifndef _U_BOOT_I386_H_
25#define _U_BOOT_I386_H_ 1
wdenk2262cfe2002-11-18 00:14:45 +000026
Graeme Russ83088af2011-11-08 02:33:15 +000027/* Exports from the Linker Script */
Simon Glass716cc8c2013-03-05 14:39:39 +000028extern char __text_start[];
Graeme Russ83088af2011-11-08 02:33:15 +000029extern ulong __data_end;
30extern ulong __rel_dyn_start;
31extern ulong __rel_dyn_end;
Simon Glass716cc8c2013-03-05 14:39:39 +000032extern char __bss_start[];
Graeme Russ83088af2011-11-08 02:33:15 +000033extern ulong __bss_end;
Simon Glass716cc8c2013-03-05 14:39:39 +000034extern char _end[];
Graeme Russ83088af2011-11-08 02:33:15 +000035
wdenk2262cfe2002-11-18 00:14:45 +000036/* cpu/.../cpu.c */
Graeme Russ0ea76e92011-02-12 15:11:35 +110037int x86_cpu_init_r(void);
Graeme Russ1c409bc2009-11-24 20:04:21 +110038int cpu_init_r(void);
Graeme Russ0ea76e92011-02-12 15:11:35 +110039int x86_cpu_init_f(void);
Graeme Russ1c409bc2009-11-24 20:04:21 +110040int cpu_init_f(void);
Graeme Russ9e6c5722011-12-31 22:58:15 +110041void init_gd(gd_t *id, u64 *gdt_addr);
42void setup_gdt(gd_t *id, u64 *gdt_addr);
Graeme Russd6532442011-12-27 22:46:43 +110043int init_cache(void);
Gabe Blackf30fc4d2012-10-20 12:33:10 +000044int cleanup_before_linux(void);
Graeme Russ8c63d472009-02-24 21:14:45 +110045
46/* cpu/.../timer.c */
47void timer_isr(void *);
48typedef void (timer_fnc_t) (void);
49int register_timer_isr (timer_fnc_t *isr_func);
50
Graeme Russfea25722011-04-13 19:43:28 +100051/* Architecture specific - can be in arch/x86/cpu/, arch/x86/lib/, or $(BOARD)/ */
Graeme Russc869e2a2011-02-12 15:11:59 +110052int dram_init_f(void);
wdenk2262cfe2002-11-18 00:14:45 +000053
Graeme Russabf0cd32009-02-24 21:13:40 +110054/* cpu/.../interrupts.c */
55int cpu_init_interrupts(void);
56
wdenk2262cfe2002-11-18 00:14:45 +000057/* board/.../... */
wdenk7a8e9bed2003-05-31 18:35:21 +000058int dram_init(void);
59
Graeme Russ79ea6b82010-04-24 00:05:48 +100060void setup_pcat_compatibility(void);
61
wdenk7a8e9bed2003-05-31 18:35:21 +000062void isa_unmap_rom(u32 addr);
63u32 isa_map_rom(u32 bus_addr, int size);
64
Graeme Russfea25722011-04-13 19:43:28 +100065/* arch/x86/lib/... */
wdenk7a8e9bed2003-05-31 18:35:21 +000066int video_bios_init(void);
wdenk2262cfe2002-11-18 00:14:45 +000067
Graeme Russf48dd6f2012-01-01 15:06:39 +110068void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn));
69void board_init_f_r(void) __attribute__ ((noreturn));
wdenk2262cfe2002-11-18 00:14:45 +000070
Vadim Bendebury2f899e02012-10-23 18:04:32 +000071/* Read the time stamp counter */
72static inline uint64_t rdtsc(void)
73{
74 uint32_t high, low;
75 __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high));
76 return (((uint64_t)high) << 32) | low;
77}
78
79/* board/... */
80void timer_set_tsc_base(uint64_t new_base);
81uint64_t timer_get_tsc(void);
82
wdenk3bac3512003-03-12 10:41:04 +000083#endif /* _U_BOOT_I386_H_ */