u-boot-x86.h 2.0 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283
  1. /*
  2. * (C) Copyright 2002
  3. * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
  4. *
  5. * SPDX-License-Identifier: GPL-2.0+
  6. */
  7. #ifndef _U_BOOT_I386_H_
  8. #define _U_BOOT_I386_H_ 1
  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(gd_t *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. void reset_cpu(ulong addr);
  37. ulong board_get_usable_ram_top(ulong total_size);
  38. void dram_init_banksize(void);
  39. int default_print_cpuinfo(void);
  40. /* Set up a UART which can be used with printch(), printhex8(), etc. */
  41. int setup_internal_uart(int enable);
  42. void setup_pcat_compatibility(void);
  43. void isa_unmap_rom(u32 addr);
  44. u32 isa_map_rom(u32 bus_addr, int size);
  45. /* arch/x86/lib/... */
  46. int video_bios_init(void);
  47. /* arch/x86/lib/fsp/... */
  48. int x86_fsp_init(void);
  49. void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn));
  50. void board_init_f_r(void) __attribute__ ((noreturn));
  51. int arch_misc_init(void);
  52. /* Read the time stamp counter */
  53. static inline __attribute__((no_instrument_function)) uint64_t rdtsc(void)
  54. {
  55. uint32_t high, low;
  56. __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high));
  57. return (((uint64_t)high) << 32) | low;
  58. }
  59. /* board/... */
  60. void timer_set_tsc_base(uint64_t new_base);
  61. uint64_t timer_get_tsc(void);
  62. void board_quiesce_devices(void);
  63. void quick_ram_check(void);
  64. #define PCI_VGA_RAM_IMAGE_START 0xc0000
  65. #endif /* _U_BOOT_I386_H_ */