u-boot-x86.h 2.2 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091
  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * (C) Copyright 2002
  4. * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
  5. */
  6. #ifndef _U_BOOT_I386_H_
  7. #define _U_BOOT_I386_H_ 1
  8. struct global_data;
  9. extern char gdt_rom[];
  10. /* cpu/.../cpu.c */
  11. int arch_cpu_init(void);
  12. int x86_cpu_init_f(void);
  13. int cpu_init_f(void);
  14. void setup_gdt(struct global_data *id, u64 *gdt_addr);
  15. /*
  16. * Setup FSP execution environment GDT to use the one we used in
  17. * arch/x86/cpu/start16.S and reload the segment registers.
  18. */
  19. void setup_fsp_gdt(void);
  20. int init_cache(void);
  21. int cleanup_before_linux(void);
  22. /* cpu/.../timer.c */
  23. void timer_isr(void *);
  24. typedef void (timer_fnc_t) (void);
  25. int register_timer_isr (timer_fnc_t *isr_func);
  26. unsigned long get_tbclk_mhz(void);
  27. void timer_set_base(uint64_t base);
  28. int i8254_init(void);
  29. /* cpu/.../interrupts.c */
  30. int cpu_init_interrupts(void);
  31. int cleanup_before_linux(void);
  32. int x86_cleanup_before_linux(void);
  33. void x86_enable_caches(void);
  34. void x86_disable_caches(void);
  35. int x86_init_cache(void);
  36. ulong board_get_usable_ram_top(ulong total_size);
  37. int default_print_cpuinfo(void);
  38. /* Set up a UART which can be used with printch(), printhex8(), etc. */
  39. int setup_internal_uart(int enable);
  40. void setup_pcat_compatibility(void);
  41. void isa_unmap_rom(u32 addr);
  42. u32 isa_map_rom(u32 bus_addr, int size);
  43. /* arch/x86/lib/... */
  44. int video_bios_init(void);
  45. /* arch/x86/lib/fsp/... */
  46. /**
  47. * fsp_save_s3_stack() - save stack address to CMOS for next S3 boot
  48. *
  49. * At the end of pre-relocation phase, save the new stack address
  50. * to CMOS and use it as the stack on next S3 boot for fsp_init()
  51. * continuation function.
  52. *
  53. * @return: 0 if OK, -ve on error
  54. */
  55. int fsp_save_s3_stack(void);
  56. void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn));
  57. void board_init_f_r(void) __attribute__ ((noreturn));
  58. int arch_misc_init(void);
  59. /* Read the time stamp counter */
  60. static inline __attribute__((no_instrument_function)) 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. void quick_ram_check(void);
  70. #define PCI_VGA_RAM_IMAGE_START 0xc0000
  71. #endif /* _U_BOOT_I386_H_ */