board_f.c

		!defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
	reserve_legacy_video,
# endif
#endif /* CONFIG_DM_VIDEO */
	reserve_trace,
#if !defined(CONFIG_BLACKFIN)
	reserve_uboot,
#endif
#ifndef CONFIG_SPL_BUILD
	reserve_malloc,
	reserve_board,
#endif
	setup_machine,
	reserve_global_data,
	reserve_fdt,
	reserve_arch,
	reserve_stacks,
	setup_dram_config,
	show_dram_config,
#if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
	setup_board_part1,
#endif
#if defined(CONFIG_PPC) || defined(CONFIG_M68K)
	INIT_FUNC_WATCHDOG_RESET
	setup_board_part2,
#endif
	display_new_sp,
#ifdef CONFIG_SYS_EXTBDINFO
	setup_board_extra,
#endif
	INIT_FUNC_WATCHDOG_RESET
	reloc_fdt,
	setup_reloc,
#if defined(CONFIG_X86) || defined(CONFIG_ARC)
	copy_uboot_to_ram,
	clear_bss,
	do_elf_reloc_fixups,
#endif
#if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
	jump_to_copy,
#endif
	NULL,
};

void board_init_f(ulong boot_flags)
{
#ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
	/*
	 * For some archtectures, global data is initialized and used before
	 * calling this function. The data should be preserved. For others,
	 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
	 * here to host global data until relocation.
	 */
	gd_t data;

	gd = &data;

	/*
	 * Clear global data before it is accessed at debug print
	 * in initcall_run_list. Otherwise the debug print probably
	 * get the wrong vaule of gd->have_console.
	 */
	zero_global_data();
#endif

	gd->flags = boot_flags;
	gd->have_console = 0;

	if (initcall_run_list(init_sequence_f))
		hang();

#if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
		!defined(CONFIG_EFI_APP)
	/* NOTREACHED - jump_to_copy() does not return */
	hang();
#endif
}

#if defined(CONFIG_X86) || defined(CONFIG_ARC)
/*
 * For now this code is only used on x86.
 *
 * init_sequence_f_r is the list of init functions which are run when
 * U-Boot is executing from Flash with a semi-limited 'C' environment.
 * The following limitations must be considered when implementing an
 * '_f_r' function:
 *  - 'static' variables are read-only
 *  - Global Data (gd->xxx) is read/write
 *
 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
 * supported).  It _should_, if possible, copy global data to RAM and
 * initialise the CPU caches (to speed up the relocation process)
 *
 * NOTE: At present only x86 uses this route, but it is intended that
 * all archs will move to this when generic relocation is implemented.
 */
static init_fnc_t init_sequence_f_r[] = {
	init_cache_f_r,

	NULL,
};

void board_init_f_r(void)
{
	if (initcall_run_list(init_sequence_f_r))
		hang();

	/*
	 * The pre-relocation drivers may be using memory that has now gone
	 * away. Mark serial as unavailable - this will fall back to the debug
	 * UART if available.
	 */
	gd->flags &= ~GD_FLG_SERIAL_READY;

	/*
	 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
	 * Transfer execution from Flash to RAM by calculating the address
	 * of the in-RAM copy of board_init_r() and calling it
	 */
	(board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);

	/* NOTREACHED - board_init_r() does not return */
	hang();
}
#endif /* CONFIG_X86 */