1 /* 2 * (C) Copyright 2002 3 * Daniel Engström, Omicron Ceti AB, daniel@omicron.se. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef _U_BOOT_I386_H_ 9 #define _U_BOOT_I386_H_ 1 10 11 /* cpu/.../cpu.c */ 12 int x86_cpu_init_r(void); 13 int cpu_init_r(void); 14 int x86_cpu_init_f(void); 15 int cpu_init_f(void); 16 void init_gd(gd_t *id, u64 *gdt_addr); 17 void setup_gdt(gd_t *id, u64 *gdt_addr); 18 int init_cache(void); 19 int cleanup_before_linux(void); 20 void panic_puts(const char *str); 21 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 pcat_timer_init(void); 29 30 /* Architecture specific - can be in arch/x86/cpu/, arch/x86/lib/, or $(BOARD)/ */ 31 int dram_init_f(void); 32 33 /* cpu/.../interrupts.c */ 34 int cpu_init_interrupts(void); 35 36 /* board/.../... */ 37 int dram_init(void); 38 39 void setup_pcat_compatibility(void); 40 41 void isa_unmap_rom(u32 addr); 42 u32 isa_map_rom(u32 bus_addr, int size); 43 44 /* arch/x86/lib/... */ 45 int video_bios_init(void); 46 47 void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn)); 48 void board_init_f_r(void) __attribute__ ((noreturn)); 49 50 /* Read the time stamp counter */ 51 static inline __attribute__((no_instrument_function)) uint64_t rdtsc(void) 52 { 53 uint32_t high, low; 54 __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high)); 55 return (((uint64_t)high) << 32) | low; 56 } 57 58 /* board/... */ 59 void timer_set_tsc_base(uint64_t new_base); 60 uint64_t timer_get_tsc(void); 61 62 #endif /* _U_BOOT_I386_H_ */ 63