]>
git.ipfire.org Git - people/ms/u-boot.git/blob - arch/x86/include/asm/u-boot-x86.h
3 * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
5 * SPDX-License-Identifier: GPL-2.0+
8 #ifndef _U_BOOT_I386_H_
9 #define _U_BOOT_I386_H_ 1
11 extern char gdt_rom
[];
14 int arch_cpu_init(void);
15 int x86_cpu_init_f(void);
17 void setup_gdt(gd_t
*id
, u64
*gdt_addr
);
19 * Setup FSP execution environment GDT to use the one we used in
20 * arch/x86/cpu/start16.S and reload the segment registers.
22 void setup_fsp_gdt(void);
24 int cleanup_before_linux(void);
27 void timer_isr(void *);
28 typedef void (timer_fnc_t
) (void);
29 int register_timer_isr (timer_fnc_t
*isr_func
);
30 unsigned long get_tbclk_mhz(void);
31 void timer_set_base(uint64_t base
);
34 /* cpu/.../interrupts.c */
35 int cpu_init_interrupts(void);
37 int cleanup_before_linux(void);
38 int x86_cleanup_before_linux(void);
39 void x86_enable_caches(void);
40 void x86_disable_caches(void);
41 int x86_init_cache(void);
42 void reset_cpu(ulong addr
);
43 ulong
board_get_usable_ram_top(ulong total_size
);
44 int dram_init_banksize(void);
45 int default_print_cpuinfo(void);
47 /* Set up a UART which can be used with printch(), printhex8(), etc. */
48 int setup_internal_uart(int enable
);
50 void setup_pcat_compatibility(void);
52 void isa_unmap_rom(u32 addr
);
53 u32
isa_map_rom(u32 bus_addr
, int size
);
55 /* arch/x86/lib/... */
56 int video_bios_init(void);
58 void board_init_f_r_trampoline(ulong
) __attribute__ ((noreturn
));
59 void board_init_f_r(void) __attribute__ ((noreturn
));
61 int arch_misc_init(void);
63 /* Read the time stamp counter */
64 static inline __attribute__((no_instrument_function
)) uint64_t rdtsc(void)
67 __asm__
__volatile__("rdtsc" : "=a" (low
), "=d" (high
));
68 return (((uint64_t)high
) << 32) | low
;
72 void timer_set_tsc_base(uint64_t new_base
);
73 uint64_t timer_get_tsc(void);
74 void board_quiesce_devices(void);
76 void quick_ram_check(void);
78 #define PCI_VGA_RAM_IMAGE_START 0xc0000
80 #endif /* _U_BOOT_I386_H_ */