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 /* Exports from the Linker Script */
28 extern ulong __text_start;
29 extern ulong __data_end;
30 extern ulong __rel_dyn_start;
31 extern ulong __rel_dyn_end;
32 extern ulong __bss_start;
33 extern ulong __bss_end;
36 int x86_cpu_init_r(void);
38 int x86_cpu_init_f(void);
40 void init_gd(gd_t *id, u64 *gdt_addr);
41 void setup_gdt(gd_t *id, u64 *gdt_addr);
43 int cleanup_before_linux(void);
46 void timer_isr(void *);
47 typedef void (timer_fnc_t) (void);
48 int register_timer_isr (timer_fnc_t *isr_func);
50 /* Architecture specific - can be in arch/x86/cpu/, arch/x86/lib/, or $(BOARD)/ */
51 int dram_init_f(void);
53 /* cpu/.../interrupts.c */
54 int cpu_init_interrupts(void);
59 void setup_pcat_compatibility(void);
61 void isa_unmap_rom(u32 addr);
62 u32 isa_map_rom(u32 bus_addr, int size);
64 /* arch/x86/lib/... */
65 int video_bios_init(void);
67 void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn));
68 void board_init_f_r(void) __attribute__ ((noreturn));
70 /* Read the time stamp counter */
71 static inline uint64_t rdtsc(void)
74 __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high));
75 return (((uint64_t)high) << 32) | low;
79 void timer_set_tsc_base(uint64_t new_base);
80 uint64_t timer_get_tsc(void);
82 #endif /* _U_BOOT_I386_H_ */