u-boot-x86.h 2.3 KB

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  1. /*
  2. * (C) Copyright 2002
  3. * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
  4. *
  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. #ifndef _U_BOOT_I386_H_
  24. #define _U_BOOT_I386_H_ 1
  25. /* Exports from the Linker Script */
  26. extern ulong __text_start;
  27. extern ulong __data_end;
  28. extern ulong __rel_dyn_start;
  29. extern ulong __rel_dyn_end;
  30. extern ulong __bss_start;
  31. extern ulong __bss_end;
  32. extern ulong _end;
  33. /* cpu/.../cpu.c */
  34. int x86_cpu_init_r(void);
  35. int cpu_init_r(void);
  36. int x86_cpu_init_f(void);
  37. int cpu_init_f(void);
  38. void init_gd(gd_t *id, u64 *gdt_addr);
  39. void setup_gdt(gd_t *id, u64 *gdt_addr);
  40. int init_cache(void);
  41. int cleanup_before_linux(void);
  42. /* cpu/.../timer.c */
  43. void timer_isr(void *);
  44. typedef void (timer_fnc_t) (void);
  45. int register_timer_isr (timer_fnc_t *isr_func);
  46. /* Architecture specific - can be in arch/x86/cpu/, arch/x86/lib/, or $(BOARD)/ */
  47. int dram_init_f(void);
  48. /* cpu/.../interrupts.c */
  49. int cpu_init_interrupts(void);
  50. /* board/.../... */
  51. int dram_init(void);
  52. void setup_pcat_compatibility(void);
  53. void isa_unmap_rom(u32 addr);
  54. u32 isa_map_rom(u32 bus_addr, int size);
  55. /* arch/x86/lib/... */
  56. int video_bios_init(void);
  57. void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn));
  58. void board_init_f_r(void) __attribute__ ((noreturn));
  59. /* Read the time stamp counter */
  60. static inline uint64_t rdtsc(void)
  61. {
  62. uint32_t high, low;
  63. __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high));
  64. return (((uint64_t)high) << 32) | low;
  65. }
  66. /* board/... */
  67. void timer_set_tsc_base(uint64_t new_base);
  68. uint64_t timer_get_tsc(void);
  69. #endif /* _U_BOOT_I386_H_ */