1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2011 The Chromium OS Authors.
4 * (C) Copyright 2002-2006
8 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
14 #include <bootstage.h>
15 #include <clock_legacy.h>
20 #include <display_options.h>
23 #include <env_internal.h>
40 #include <status_led.h>
46 #include <asm/cache.h>
47 #include <asm/global_data.h>
49 #include <asm/sections.h>
51 #include <linux/errno.h>
52 #include <linux/log2.h>
54 DECLARE_GLOBAL_DATA_PTR;
58 * refactored to a single function, something like:
60 * void led_set_state(enum led_colour_t colour, int on);
62 /************************************************************************
63 * Coloured LED functionality
64 ************************************************************************
65 * May be supplied by boards if desired
67 __weak void coloured_LED_init(void) {}
68 __weak void red_led_on(void) {}
69 __weak void red_led_off(void) {}
70 __weak void green_led_on(void) {}
71 __weak void green_led_off(void) {}
72 __weak void yellow_led_on(void) {}
73 __weak void yellow_led_off(void) {}
74 __weak void blue_led_on(void) {}
75 __weak void blue_led_off(void) {}
78 * Why is gd allocated a register? Prior to reloc it might be better to
79 * just pass it around to each function in this file?
81 * After reloc one could argue that it is hardly used and doesn't need
82 * to be in a register. Or if it is it should perhaps hold pointers to all
83 * global data for all modules, so that post-reloc we can avoid the massive
84 * literal pool we get on ARM. Or perhaps just encourage each module to use
88 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
89 static int init_func_watchdog_init(void)
91 # if defined(CONFIG_HW_WATCHDOG) && \
92 (defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
93 defined(CONFIG_SH) || \
94 defined(CONFIG_DESIGNWARE_WATCHDOG) || \
95 defined(CONFIG_IMX_WATCHDOG))
97 puts(" Watchdog enabled\n");
104 int init_func_watchdog_reset(void)
110 #endif /* CONFIG_WATCHDOG */
112 __weak void board_add_ram_info(int use_default)
114 /* please define platform specific board_add_ram_info() */
117 static int init_baud_rate(void)
119 gd->baudrate = env_get_ulong("baudrate", 10, CONFIG_BAUDRATE);
123 static int display_text_info(void)
125 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP)
126 ulong bss_start, bss_end, text_base;
128 bss_start = (ulong)&__bss_start;
129 bss_end = (ulong)&__bss_end;
131 #ifdef CONFIG_SYS_TEXT_BASE
132 text_base = CONFIG_SYS_TEXT_BASE;
134 text_base = CONFIG_SYS_MONITOR_BASE;
137 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
138 text_base, bss_start, bss_end);
144 #ifdef CONFIG_SYSRESET
145 static int print_resetinfo(void)
151 ret = uclass_first_device_err(UCLASS_SYSRESET, &dev);
153 debug("%s: No sysreset device found (error: %d)\n",
155 /* Not all boards have sysreset drivers available during early
156 * boot, so don't fail if one can't be found.
161 if (!sysreset_get_status(dev, status, sizeof(status)))
162 printf("%s", status);
168 #if defined(CONFIG_DISPLAY_CPUINFO) && CONFIG_IS_ENABLED(CPU)
169 static int print_cpuinfo(void)
175 dev = cpu_get_current_dev();
177 debug("%s: Could not get CPU device\n",
182 ret = cpu_get_desc(dev, desc, sizeof(desc));
184 debug("%s: Could not get CPU description (err = %d)\n",
189 printf("CPU: %s\n", desc);
195 static int announce_dram_init(void)
202 * From input size calculate its nearest rounded unit scale (multiply of 2^10)
203 * and value in calculated unit scale multiplied by 10 (as fractional fixed
204 * point number with one decimal digit), which is human natural format,
205 * same what uses print_size() function for displaying. Mathematically it is:
206 * round_nearest(val * 2^scale) = size * 10; where: 10 <= val < 10240.
208 * For example for size=87654321 we calculate scale=20 and val=836 which means
209 * that input has natural human format 83.6 M (mega = 2^20).
211 #define compute_size_scale_val(size, scale, val) do { \
212 scale = ilog2(size) / 10 * 10; \
213 val = (10 * size + ((1ULL << scale) >> 1)) >> scale; \
214 if (val == 10240) { val = 10; scale += 10; } \
218 * Check if the sizes in their natural units written in decimal format with
219 * one fraction number are same.
221 static int sizes_near(unsigned long long size1, unsigned long long size2)
223 unsigned int size1_scale, size1_val, size2_scale, size2_val;
225 compute_size_scale_val(size1, size1_scale, size1_val);
226 compute_size_scale_val(size2, size2_scale, size2_val);
228 return size1_scale == size2_scale && size1_val == size2_val;
231 static int show_dram_config(void)
233 unsigned long long size;
236 debug("\nRAM Configuration:\n");
237 for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
238 size += gd->bd->bi_dram[i].size;
239 debug("Bank #%d: %llx ", i,
240 (unsigned long long)(gd->bd->bi_dram[i].start));
242 print_size(gd->bd->bi_dram[i].size, "\n");
247 print_size(gd->ram_size, "");
248 if (!sizes_near(gd->ram_size, size)) {
249 printf(" (effective ");
250 print_size(size, ")");
252 board_add_ram_info(0);
258 __weak int dram_init_banksize(void)
260 gd->bd->bi_dram[0].start = gd->ram_base;
261 gd->bd->bi_dram[0].size = get_effective_memsize();
266 #if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
267 static int init_func_i2c(void)
276 #if defined(CONFIG_VID)
277 __weak int init_func_vid(void)
283 static int setup_mon_len(void)
285 #if defined(__ARM__) || defined(__MICROBLAZE__)
286 gd->mon_len = (ulong)&__bss_end - (ulong)_start;
287 #elif defined(CONFIG_SANDBOX)
289 #elif defined(CONFIG_EFI_APP)
290 gd->mon_len = (ulong)&_end - (ulong)_init;
291 #elif defined(CONFIG_NIOS2) || defined(CONFIG_XTENSA)
292 gd->mon_len = CONFIG_SYS_MONITOR_LEN;
293 #elif defined(CONFIG_SH) || defined(CONFIG_RISCV)
294 gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start);
295 #elif defined(CONFIG_SYS_MONITOR_BASE)
296 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
297 gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
302 static int setup_spl_handoff(void)
304 #if CONFIG_IS_ENABLED(HANDOFF)
305 gd->spl_handoff = bloblist_find(BLOBLISTT_U_BOOT_SPL_HANDOFF,
306 sizeof(struct spl_handoff));
307 debug("Found SPL hand-off info %p\n", gd->spl_handoff);
313 __weak int arch_cpu_init(void)
318 __weak int mach_cpu_init(void)
323 /* Get the top of usable RAM */
324 __weak phys_size_t board_get_usable_ram_top(phys_size_t total_size)
326 #if defined(CONFIG_SYS_SDRAM_BASE) && CONFIG_SYS_SDRAM_BASE > 0
328 * Detect whether we have so much RAM that it goes past the end of our
329 * 32-bit address space. If so, clip the usable RAM so it doesn't.
331 if (gd->ram_top < CONFIG_SYS_SDRAM_BASE)
333 * Will wrap back to top of 32-bit space when reservations
341 __weak int arch_setup_dest_addr(void)
346 static int setup_dest_addr(void)
348 debug("Monitor len: %08lX\n", gd->mon_len);
350 * Ram is setup, size stored in gd !!
352 debug("Ram size: %08llX\n", (unsigned long long)gd->ram_size);
353 #if CONFIG_VAL(SYS_MEM_TOP_HIDE)
355 * Subtract specified amount of memory to hide so that it won't
356 * get "touched" at all by U-Boot. By fixing up gd->ram_size
357 * the Linux kernel should now get passed the now "corrected"
358 * memory size and won't touch it either. This should work
359 * for arch/ppc and arch/powerpc. Only Linux board ports in
360 * arch/powerpc with bootwrapper support, that recalculate the
361 * memory size from the SDRAM controller setup will have to
364 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
366 #ifdef CONFIG_SYS_SDRAM_BASE
367 gd->ram_base = CONFIG_SYS_SDRAM_BASE;
369 gd->ram_top = gd->ram_base + get_effective_memsize();
370 gd->ram_top = board_get_usable_ram_top(gd->mon_len);
371 gd->relocaddr = gd->ram_top;
372 debug("Ram top: %08llX\n", (unsigned long long)gd->ram_top);
374 return arch_setup_dest_addr();
378 /* reserve protected RAM */
379 static int reserve_pram(void)
383 reg = env_get_ulong("pram", 10, CONFIG_PRAM);
384 gd->relocaddr -= (reg << 10); /* size is in kB */
385 debug("Reserving %ldk for protected RAM at %08lx\n", reg,
389 #endif /* CONFIG_PRAM */
391 /* Round memory pointer down to next 4 kB limit */
392 static int reserve_round_4k(void)
394 gd->relocaddr &= ~(4096 - 1);
398 __weak int arch_reserve_mmu(void)
403 static int reserve_video(void)
405 #ifdef CONFIG_DM_VIDEO
409 addr = gd->relocaddr;
410 ret = video_reserve(&addr);
413 debug("Reserving %luk for video at: %08lx\n",
414 ((unsigned long)gd->relocaddr - addr) >> 10, addr);
415 gd->relocaddr = addr;
416 #elif defined(CONFIG_LCD)
417 /* reserve memory for LCD display (always full pages) */
418 gd->relocaddr = lcd_setmem(gd->relocaddr);
419 gd->fb_base = gd->relocaddr;
425 static int reserve_trace(void)
428 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
429 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
430 debug("Reserving %luk for trace data at: %08lx\n",
431 (unsigned long)CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
437 static int reserve_uboot(void)
439 if (!(gd->flags & GD_FLG_SKIP_RELOC)) {
441 * reserve memory for U-Boot code, data & bss
442 * round down to next 4 kB limit
444 gd->relocaddr -= gd->mon_len;
445 gd->relocaddr &= ~(4096 - 1);
446 #if defined(CONFIG_E500) || defined(CONFIG_MIPS)
447 /* round down to next 64 kB limit so that IVPR stays aligned */
448 gd->relocaddr &= ~(65536 - 1);
451 debug("Reserving %ldk for U-Boot at: %08lx\n",
452 gd->mon_len >> 10, gd->relocaddr);
455 gd->start_addr_sp = gd->relocaddr;
461 * reserve after start_addr_sp the requested size and make the stack pointer
462 * 16-byte aligned, this alignment is needed for cast on the reserved memory
463 * ref = x86_64 ABI: https://reviews.llvm.org/D30049: 16 bytes
464 * = ARMv8 Instruction Set Overview: quad word, 16 bytes
466 static unsigned long reserve_stack_aligned(size_t size)
468 return ALIGN_DOWN(gd->start_addr_sp - size, 16);
471 #ifdef CONFIG_SYS_NONCACHED_MEMORY
472 static int reserve_noncached(void)
475 * The value of gd->start_addr_sp must match the value of malloc_start
476 * calculated in boatrd_f.c:initr_malloc(), which is passed to
477 * board_r.c:mem_malloc_init() and then used by
478 * cache.c:noncached_init()
480 * These calculations must match the code in cache.c:noncached_init()
482 gd->start_addr_sp = ALIGN(gd->start_addr_sp, MMU_SECTION_SIZE) -
484 gd->start_addr_sp -= ALIGN(CONFIG_SYS_NONCACHED_MEMORY,
486 debug("Reserving %dM for noncached_alloc() at: %08lx\n",
487 CONFIG_SYS_NONCACHED_MEMORY >> 20, gd->start_addr_sp);
493 /* reserve memory for malloc() area */
494 static int reserve_malloc(void)
496 gd->start_addr_sp = reserve_stack_aligned(TOTAL_MALLOC_LEN);
497 debug("Reserving %dk for malloc() at: %08lx\n",
498 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
499 #ifdef CONFIG_SYS_NONCACHED_MEMORY
506 /* (permanently) allocate a Board Info struct */
507 static int reserve_board(void)
510 gd->start_addr_sp = reserve_stack_aligned(sizeof(struct bd_info));
511 gd->bd = (struct bd_info *)map_sysmem(gd->start_addr_sp,
512 sizeof(struct bd_info));
513 memset(gd->bd, '\0', sizeof(struct bd_info));
514 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
515 sizeof(struct bd_info), gd->start_addr_sp);
520 static int reserve_global_data(void)
522 gd->start_addr_sp = reserve_stack_aligned(sizeof(gd_t));
523 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
524 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
525 sizeof(gd_t), gd->start_addr_sp);
529 static int reserve_fdt(void)
531 if (!IS_ENABLED(CONFIG_OF_EMBED)) {
533 * If the device tree is sitting immediately above our image
534 * then we must relocate it. If it is embedded in the data
535 * section, then it will be relocated with other data.
538 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob), 32);
540 gd->start_addr_sp = reserve_stack_aligned(gd->fdt_size);
541 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
542 debug("Reserving %lu Bytes for FDT at: %08lx\n",
543 gd->fdt_size, gd->start_addr_sp);
550 static int reserve_bootstage(void)
552 #ifdef CONFIG_BOOTSTAGE
553 int size = bootstage_get_size();
555 gd->start_addr_sp = reserve_stack_aligned(size);
556 gd->new_bootstage = map_sysmem(gd->start_addr_sp, size);
557 debug("Reserving %#x Bytes for bootstage at: %08lx\n", size,
564 __weak int arch_reserve_stacks(void)
569 static int reserve_stacks(void)
571 /* make stack pointer 16-byte aligned */
572 gd->start_addr_sp = reserve_stack_aligned(16);
575 * let the architecture-specific code tailor gd->start_addr_sp and
578 return arch_reserve_stacks();
581 static int reserve_bloblist(void)
583 #ifdef CONFIG_BLOBLIST
584 /* Align to a 4KB boundary for easier reading of addresses */
585 gd->start_addr_sp = ALIGN_DOWN(gd->start_addr_sp -
586 CONFIG_BLOBLIST_SIZE_RELOC, 0x1000);
587 gd->new_bloblist = map_sysmem(gd->start_addr_sp,
588 CONFIG_BLOBLIST_SIZE_RELOC);
594 static int display_new_sp(void)
596 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
601 __weak int arch_setup_bdinfo(void)
606 int setup_bdinfo(void)
608 struct bd_info *bd = gd->bd;
610 if (IS_ENABLED(CONFIG_SYS_HAS_SRAM)) {
611 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */
612 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */
615 return arch_setup_bdinfo();
619 static int init_post(void)
621 post_bootmode_init();
622 post_run(NULL, POST_ROM | post_bootmode_get(0));
628 static int reloc_fdt(void)
630 if (!IS_ENABLED(CONFIG_OF_EMBED)) {
631 if (gd->flags & GD_FLG_SKIP_RELOC)
634 memcpy(gd->new_fdt, gd->fdt_blob,
635 fdt_totalsize(gd->fdt_blob));
636 gd->fdt_blob = gd->new_fdt;
643 static int reloc_bootstage(void)
645 #ifdef CONFIG_BOOTSTAGE
646 if (gd->flags & GD_FLG_SKIP_RELOC)
648 if (gd->new_bootstage) {
649 int size = bootstage_get_size();
651 debug("Copying bootstage from %p to %p, size %x\n",
652 gd->bootstage, gd->new_bootstage, size);
653 memcpy(gd->new_bootstage, gd->bootstage, size);
654 gd->bootstage = gd->new_bootstage;
655 bootstage_relocate();
662 static int reloc_bloblist(void)
664 #ifdef CONFIG_BLOBLIST
666 * Relocate only if we are supposed to send it
668 if ((gd->flags & GD_FLG_SKIP_RELOC) &&
669 CONFIG_BLOBLIST_SIZE == CONFIG_BLOBLIST_SIZE_RELOC) {
670 debug("Not relocating bloblist\n");
673 if (gd->new_bloblist) {
674 int size = CONFIG_BLOBLIST_SIZE;
676 debug("Copying bloblist from %p to %p, size %x\n",
677 gd->bloblist, gd->new_bloblist, size);
678 bloblist_reloc(gd->new_bloblist, CONFIG_BLOBLIST_SIZE_RELOC,
680 gd->bloblist = gd->new_bloblist;
687 static int setup_reloc(void)
689 if (!(gd->flags & GD_FLG_SKIP_RELOC)) {
690 #ifdef CONFIG_SYS_TEXT_BASE
692 gd->reloc_off = gd->relocaddr - (unsigned long)__image_copy_start;
693 #elif defined(CONFIG_MICROBLAZE)
694 gd->reloc_off = gd->relocaddr - (u32)_start;
695 #elif defined(CONFIG_M68K)
697 * On all ColdFire arch cpu, monitor code starts always
698 * just after the default vector table location, so at 0x400
700 gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400);
701 #elif !defined(CONFIG_SANDBOX)
702 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
707 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
709 if (gd->flags & GD_FLG_SKIP_RELOC) {
710 debug("Skipping relocation due to flag\n");
712 debug("Relocation Offset is: %08lx\n", gd->reloc_off);
713 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
714 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
721 #ifdef CONFIG_OF_BOARD_FIXUP
722 static int fix_fdt(void)
724 return board_fix_fdt((void *)gd->fdt_blob);
728 /* ARM calls relocate_code from its crt0.S */
729 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
730 !CONFIG_IS_ENABLED(X86_64)
732 static int jump_to_copy(void)
734 if (gd->flags & GD_FLG_SKIP_RELOC)
737 * x86 is special, but in a nice way. It uses a trampoline which
738 * enables the dcache if possible.
740 * For now, other archs use relocate_code(), which is implemented
741 * similarly for all archs. When we do generic relocation, hopefully
742 * we can make all archs enable the dcache prior to relocation.
744 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
746 * SDRAM and console are now initialised. The final stack can now
747 * be setup in SDRAM. Code execution will continue in Flash, but
748 * with the stack in SDRAM and Global Data in temporary memory
751 arch_setup_gd(gd->new_gd);
752 board_init_f_r_trampoline(gd->start_addr_sp);
754 relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
761 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
762 static int initf_bootstage(void)
764 bool from_spl = IS_ENABLED(CONFIG_SPL_BOOTSTAGE) &&
765 IS_ENABLED(CONFIG_BOOTSTAGE_STASH);
768 ret = bootstage_init(!from_spl);
772 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
773 CONFIG_BOOTSTAGE_STASH_SIZE);
775 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
776 if (ret && ret != -ENOENT) {
777 debug("Failed to unstash bootstage: err=%d\n", ret);
782 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
787 static int initf_dm(void)
789 #if defined(CONFIG_DM) && CONFIG_VAL(SYS_MALLOC_F_LEN)
792 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_F, "dm_f");
793 ret = dm_init_and_scan(true);
794 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_F);
798 if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
799 ret = dm_timer_init();
808 /* Architecture-specific memory reservation */
809 __weak int reserve_arch(void)
814 __weak int checkcpu(void)
819 __weak int clear_bss(void)
824 static int misc_init_f(void)
826 return event_notify_null(EVT_MISC_INIT_F);
829 static const init_fnc_t init_sequence_f[] = {
831 #ifdef CONFIG_OF_CONTROL
834 #ifdef CONFIG_TRACE_EARLY
839 initf_bootstage, /* uses its own timer, so does not need DM */
842 #ifdef CONFIG_BLOBLIST
846 #if defined(CONFIG_CONSOLE_RECORD_INIT_F)
849 #if defined(CONFIG_HAVE_FSP)
852 arch_cpu_init, /* basic arch cpu dependent setup */
853 mach_cpu_init, /* SoC/machine dependent CPU setup */
855 #if defined(CONFIG_BOARD_EARLY_INIT_F)
858 #if defined(CONFIG_PPC) || defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K)
859 /* get CPU and bus clocks according to the environment variable */
860 get_clocks, /* get CPU and bus clocks (etc.) */
862 #if !defined(CONFIG_M68K)
863 timer_init, /* initialize timer */
865 #if defined(CONFIG_BOARD_POSTCLK_INIT)
868 env_init, /* initialize environment */
869 init_baud_rate, /* initialze baudrate settings */
870 serial_init, /* serial communications setup */
871 console_init_f, /* stage 1 init of console */
872 display_options, /* say that we are here */
873 display_text_info, /* show debugging info if required */
875 #if defined(CONFIG_SYSRESET)
878 #if defined(CONFIG_DISPLAY_CPUINFO)
879 print_cpuinfo, /* display cpu info (and speed) */
881 #if defined(CONFIG_DTB_RESELECT)
884 #if defined(CONFIG_DISPLAY_BOARDINFO)
887 INIT_FUNC_WATCHDOG_INIT
889 INIT_FUNC_WATCHDOG_RESET
890 #if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
893 #if defined(CONFIG_VID) && !defined(CONFIG_SPL)
897 dram_init, /* configure available RAM banks */
901 INIT_FUNC_WATCHDOG_RESET
902 #if defined(CONFIG_SYS_DRAM_TEST)
904 #endif /* CONFIG_SYS_DRAM_TEST */
905 INIT_FUNC_WATCHDOG_RESET
910 INIT_FUNC_WATCHDOG_RESET
912 * Now that we have DRAM mapped and working, we can
913 * relocate the code and continue running from DRAM.
915 * Reserve memory at end of RAM for (top down in that order):
916 * - area that won't get touched by U-Boot and Linux (optional)
917 * - kernel log buffer
921 * - board info struct
924 #ifdef CONFIG_OF_BOARD_FIXUP
945 INIT_FUNC_WATCHDOG_RESET
948 INIT_FUNC_WATCHDOG_RESET
953 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
958 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
959 !CONFIG_IS_ENABLED(X86_64)
965 void board_init_f(ulong boot_flags)
967 gd->flags = boot_flags;
968 gd->have_console = 0;
970 if (initcall_run_list(init_sequence_f))
973 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
974 !defined(CONFIG_EFI_APP) && !CONFIG_IS_ENABLED(X86_64) && \
976 /* NOTREACHED - jump_to_copy() does not return */
981 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
983 * For now this code is only used on x86.
985 * init_sequence_f_r is the list of init functions which are run when
986 * U-Boot is executing from Flash with a semi-limited 'C' environment.
987 * The following limitations must be considered when implementing an
989 * - 'static' variables are read-only
990 * - Global Data (gd->xxx) is read/write
992 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
993 * supported). It _should_, if possible, copy global data to RAM and
994 * initialise the CPU caches (to speed up the relocation process)
996 * NOTE: At present only x86 uses this route, but it is intended that
997 * all archs will move to this when generic relocation is implemented.
999 static const init_fnc_t init_sequence_f_r[] = {
1000 #if !CONFIG_IS_ENABLED(X86_64)
1007 void board_init_f_r(void)
1009 if (initcall_run_list(init_sequence_f_r))
1013 * The pre-relocation drivers may be using memory that has now gone
1014 * away. Mark serial as unavailable - this will fall back to the debug
1015 * UART if available.
1017 * Do the same with log drivers since the memory may not be available.
1019 gd->flags &= ~(GD_FLG_SERIAL_READY | GD_FLG_LOG_READY);
1025 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1026 * Transfer execution from Flash to RAM by calculating the address
1027 * of the in-RAM copy of board_init_r() and calling it
1029 (board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
1031 /* NOTREACHED - board_init_r() does not return */
1034 #endif /* CONFIG_X86 */