b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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_ */ |