1 // SPDX-License-Identifier: GPL-2.0+
4 * Texas Instruments, <www.ti.com>
6 * Aneesh V <aneesh@ti.com>
11 #include <binman_sym.h>
12 #include <bootstage.h>
22 #include <asm/global_data.h>
23 #include <asm/u-boot.h>
26 #include <u-boot/crc.h>
27 #if CONFIG_IS_ENABLED(BANNER_PRINT)
28 #include <timestamp.h>
35 #include <linux/compiler.h>
36 #include <fdt_support.h>
37 #include <bootcount.h>
40 DECLARE_GLOBAL_DATA_PTR;
42 #ifndef CONFIG_SYS_UBOOT_START
43 #define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
45 #ifndef CONFIG_SYS_MONITOR_LEN
46 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
47 #define CONFIG_SYS_MONITOR_LEN (200 * 1024)
50 u32 *boot_params_ptr = NULL;
52 /* See spl.h for information about this */
53 binman_sym_declare(ulong, u_boot_any, image_pos);
54 binman_sym_declare(ulong, u_boot_any, size);
57 binman_sym_declare(ulong, spl, image_pos);
58 binman_sym_declare(ulong, spl, size);
61 /* Define board data structure */
62 static struct bd_info bdata __attribute__ ((section(".data")));
64 #if CONFIG_IS_ENABLED(BOOTSTAGE)
66 * Board-specific Platform code can reimplement show_boot_progress () if needed
68 __weak void show_boot_progress(int val) {}
71 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) || \
72 defined(CONFIG_SPL_ATF)
73 /* weak, default platform-specific function to initialize dram banks */
74 __weak int dram_init_banksize(void)
81 * Default function to determine if u-boot or the OS should
82 * be started. This implementation always returns 1.
84 * Please implement your own board specific funcion to do this.
87 * 0 to not start u-boot
88 * positive if u-boot should start
90 #ifdef CONFIG_SPL_OS_BOOT
91 __weak int spl_start_uboot(void)
94 "Please implement spl_start_uboot() for your board\n");
95 puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
100 * Weak default function for arch specific zImage check. Return zero
101 * and fill start and end address if image is recognized.
103 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
109 /* Weak default function for arch/board-specific fixups to the spl_image_info */
110 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
114 void spl_fixup_fdt(void *fdt_blob)
116 #if defined(CONFIG_SPL_OF_LIBFDT)
122 err = fdt_check_header(fdt_blob);
124 printf("fdt_root: %s\n", fdt_strerror(err));
128 /* fixup the memory dt node */
129 err = fdt_shrink_to_minimum(fdt_blob, 0);
131 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
135 err = arch_fixup_fdt(fdt_blob);
137 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
143 ulong spl_get_image_pos(void)
145 return spl_phase() == PHASE_TPL ?
146 binman_sym(ulong, spl, image_pos) :
147 binman_sym(ulong, u_boot_any, image_pos);
150 ulong spl_get_image_size(void)
152 return spl_phase() == PHASE_TPL ?
153 binman_sym(ulong, spl, size) :
154 binman_sym(ulong, u_boot_any, size);
157 ulong spl_get_image_text_base(void)
159 return spl_phase() == PHASE_TPL ? CONFIG_SPL_TEXT_BASE :
160 CONFIG_SYS_TEXT_BASE;
164 * Weak default function for board specific cleanup/preparation before
165 * Linux boot. Some boards/platforms might not need it, so just provide
166 * an empty stub here.
168 __weak void spl_board_prepare_for_linux(void)
173 __weak void spl_board_prepare_for_optee(void *fdt)
177 #if CONFIG_IS_ENABLED(OPTEE_IMAGE)
178 __weak void __noreturn jump_to_image_optee(struct spl_image_info *spl_image)
180 spl_optee_entry(NULL, NULL, spl_image->fdt_addr,
181 (void *)spl_image->entry_point);
185 __weak void spl_board_prepare_for_boot(void)
190 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
192 return map_sysmem(CONFIG_SYS_TEXT_BASE + offset, 0);
195 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
197 ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
199 spl_image->size = CONFIG_SYS_MONITOR_LEN;
202 * Binman error cases: address of the end of the previous region or the
203 * start of the image's entry area (usually 0) if there is no previous
206 if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
207 /* Binman does not support separated entry addresses */
208 spl_image->entry_point = u_boot_pos;
209 spl_image->load_addr = u_boot_pos;
211 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
212 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
214 spl_image->os = IH_OS_U_BOOT;
215 spl_image->name = "U-Boot";
218 #if CONFIG_IS_ENABLED(LOAD_FIT_FULL)
219 /* Parse and load full fitImage in SPL */
220 static int spl_load_fit_image(struct spl_image_info *spl_image,
221 const struct image_header *header)
223 bootm_headers_t images;
224 const char *fit_uname_config = NULL;
227 ulong fw_data = 0, dt_data = 0, img_data = 0;
228 ulong fw_len = 0, dt_len = 0, img_len = 0;
229 int idx, conf_noffset;
232 #ifdef CONFIG_SPL_FIT_SIGNATURE
235 ret = fit_image_load(&images, (ulong)header,
236 NULL, &fit_uname_config,
237 IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
238 FIT_LOAD_OPTIONAL, &fw_data, &fw_len);
240 printf("DEPRECATED: 'standalone = ' property.");
241 printf("Please use either 'firmware =' or 'kernel ='\n");
243 ret = fit_image_load(&images, (ulong)header, NULL,
244 &fit_uname_config, IH_ARCH_DEFAULT,
245 IH_TYPE_FIRMWARE, -1, FIT_LOAD_OPTIONAL,
250 ret = fit_image_load(&images, (ulong)header, NULL,
251 &fit_uname_config, IH_ARCH_DEFAULT,
252 IH_TYPE_KERNEL, -1, FIT_LOAD_OPTIONAL,
259 spl_image->size = fw_len;
260 spl_image->entry_point = fw_data;
261 spl_image->load_addr = fw_data;
262 if (fit_image_get_os(header, ret, &spl_image->os))
263 spl_image->os = IH_OS_INVALID;
264 spl_image->name = genimg_get_os_name(spl_image->os);
266 debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
267 spl_image->name, spl_image->load_addr, spl_image->size);
269 #ifdef CONFIG_SPL_FIT_SIGNATURE
272 ret = fit_image_load(&images, (ulong)header, NULL, &fit_uname_config,
273 IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
274 FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
276 spl_image->fdt_addr = (void *)dt_data;
278 if (spl_image->os == IH_OS_U_BOOT) {
279 /* HACK: U-boot expects FDT at a specific address */
280 fdt_hack = spl_image->load_addr + spl_image->size;
281 fdt_hack = (fdt_hack + 3) & ~3;
282 debug("Relocating FDT to %p\n", spl_image->fdt_addr);
283 memcpy((void *)fdt_hack, spl_image->fdt_addr, dt_len);
287 conf_noffset = fit_conf_get_node((const void *)header,
289 if (conf_noffset <= 0)
293 uname = fdt_stringlist_get((const void *)header, conf_noffset,
294 FIT_LOADABLE_PROP, idx,
298 #ifdef CONFIG_SPL_FIT_SIGNATURE
301 ret = fit_image_load(&images, (ulong)header,
302 &uname, &fit_uname_config,
303 IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
304 FIT_LOAD_OPTIONAL_NON_ZERO,
305 &img_data, &img_len);
314 __weak int spl_parse_board_header(struct spl_image_info *spl_image,
315 const void *image_header, size_t size)
320 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
321 const struct image_header *header)
323 /* LEGACY image not supported */
324 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
328 int spl_parse_image_header(struct spl_image_info *spl_image,
329 const struct image_header *header)
331 #if CONFIG_IS_ENABLED(LOAD_FIT_FULL)
332 int ret = spl_load_fit_image(spl_image, header);
337 if (image_get_magic(header) == IH_MAGIC) {
340 ret = spl_parse_legacy_header(spl_image, header);
344 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
346 * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
347 * code which loads images in SPL cannot guarantee that
348 * absolutely all read errors will be reported.
349 * An example is the LPC32XX MLC NAND driver, which
350 * will consider that a completely unreadable NAND block
351 * is bad, and thus should be skipped silently.
353 panic("** no mkimage signature but raw image not supported");
356 #ifdef CONFIG_SPL_OS_BOOT
359 if (!bootz_setup((ulong)header, &start, &end)) {
360 spl_image->name = "Linux";
361 spl_image->os = IH_OS_LINUX;
362 spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
363 spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
364 spl_image->size = end - start;
366 "payload zImage, load addr: 0x%lx size: %d\n",
367 spl_image->load_addr, spl_image->size);
372 if (!spl_parse_board_header(spl_image, (const void *)header, sizeof(*header)))
375 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
376 /* Signature not found - assume u-boot.bin */
377 debug("mkimage signature not found - ih_magic = %x\n",
379 spl_set_header_raw_uboot(spl_image);
381 /* RAW image not supported, proceed to other boot methods. */
382 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
390 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
392 typedef void __noreturn (*image_entry_noargs_t)(void);
394 image_entry_noargs_t image_entry =
395 (image_entry_noargs_t)spl_image->entry_point;
397 debug("image entry point: 0x%lx\n", spl_image->entry_point);
401 #if CONFIG_IS_ENABLED(HANDOFF)
403 * Set up the SPL hand-off information
405 * This is initially empty (zero) but can be written by
407 static int setup_spl_handoff(void)
409 struct spl_handoff *ho;
411 ho = bloblist_ensure(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
418 __weak int handoff_arch_save(struct spl_handoff *ho)
423 static int write_spl_handoff(void)
425 struct spl_handoff *ho;
428 ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
431 handoff_save_dram(ho);
432 ret = handoff_arch_save(ho);
435 debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
440 static inline int setup_spl_handoff(void) { return 0; }
441 static inline int write_spl_handoff(void) { return 0; }
446 * get_bootstage_id() - Get the bootstage ID to emit
448 * @start: true if this is for starting SPL, false for ending it
449 * @return bootstage ID to use
451 static enum bootstage_id get_bootstage_id(bool start)
453 enum u_boot_phase phase = spl_phase();
455 if (IS_ENABLED(CONFIG_TPL_BUILD) && phase == PHASE_TPL)
456 return start ? BOOTSTAGE_ID_START_TPL : BOOTSTAGE_ID_END_TPL;
458 return start ? BOOTSTAGE_ID_START_SPL : BOOTSTAGE_ID_END_SPL;
461 static int spl_common_init(bool setup_malloc)
465 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
467 #ifdef CONFIG_MALLOC_F_ADDR
468 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
470 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
474 ret = bootstage_init(u_boot_first_phase());
476 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
480 #ifdef CONFIG_BOOTSTAGE_STASH
481 if (!u_boot_first_phase()) {
482 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
483 CONFIG_BOOTSTAGE_STASH_SIZE);
485 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
487 debug("%s: Failed to unstash bootstage: ret=%d\n",
490 #endif /* CONFIG_BOOTSTAGE_STASH */
491 bootstage_mark_name(get_bootstage_id(true),
492 spl_phase_name(spl_phase()));
493 #if CONFIG_IS_ENABLED(LOG)
496 debug("%s: Failed to set up logging\n", __func__);
500 if (CONFIG_IS_ENABLED(OF_REAL)) {
501 ret = fdtdec_setup();
503 debug("fdtdec_setup() returned error %d\n", ret);
507 if (CONFIG_IS_ENABLED(DM)) {
508 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
509 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
510 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
511 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
512 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
514 debug("dm_init_and_scan() returned error %d\n", ret);
522 void spl_set_bd(void)
525 * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
532 int spl_early_init(void)
536 debug("%s\n", __func__);
538 ret = spl_common_init(true);
541 gd->flags |= GD_FLG_SPL_EARLY_INIT;
549 bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
550 IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
552 debug("%s\n", __func__);
554 if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
555 ret = spl_common_init(setup_malloc);
559 gd->flags |= GD_FLG_SPL_INIT;
564 #ifndef BOOT_DEVICE_NONE
565 #define BOOT_DEVICE_NONE 0xdeadbeef
568 __weak void board_boot_order(u32 *spl_boot_list)
570 spl_boot_list[0] = spl_boot_device();
573 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
575 struct spl_image_loader *drv =
576 ll_entry_start(struct spl_image_loader, spl_image_loader);
578 ll_entry_count(struct spl_image_loader, spl_image_loader);
579 struct spl_image_loader *entry;
581 for (entry = drv; entry != drv + n_ents; entry++) {
582 if (boot_device == entry->boot_device)
590 static int spl_load_image(struct spl_image_info *spl_image,
591 struct spl_image_loader *loader)
594 struct spl_boot_device bootdev;
596 bootdev.boot_device = loader->boot_device;
597 bootdev.boot_device_name = NULL;
599 ret = loader->load_image(spl_image, &bootdev);
600 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
601 if (!ret && spl_image->dcrc_length) {
603 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
604 spl_image->dcrc_length, CHUNKSZ_CRC32);
605 if (dcrc != spl_image->dcrc) {
606 puts("SPL: Image data CRC check failed!\n");
615 * boot_from_devices() - Try loading a booting U-Boot from a list of devices
617 * @spl_image: Place to put the image details if successful
618 * @spl_boot_list: List of boot devices to try
619 * @count: Number of elements in spl_boot_list
620 * @return 0 if OK, -ENODEV if there were no boot devices
621 * if CONFIG_SHOW_ERRORS is enabled, returns -ENXIO if there were
622 * devices but none worked
624 static int boot_from_devices(struct spl_image_info *spl_image,
625 u32 spl_boot_list[], int count)
630 for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
631 struct spl_image_loader *loader;
632 int bootdev = spl_boot_list[i];
634 if (CONFIG_IS_ENABLED(SHOW_ERRORS))
636 loader = spl_ll_find_loader(bootdev);
637 if (CONFIG_IS_ENABLED(SERIAL) &&
638 CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT) &&
639 !IS_ENABLED(CONFIG_SILENT_CONSOLE)) {
641 printf("Trying to boot from %s\n",
642 spl_loader_name(loader));
643 else if (CONFIG_IS_ENABLED(SHOW_ERRORS))
644 printf(SPL_TPL_PROMPT
645 "Unsupported Boot Device %d\n", bootdev);
647 puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
649 if (loader && !spl_load_image(spl_image, loader)) {
650 spl_image->boot_device = bootdev;
658 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
659 void board_init_f(ulong dummy)
661 if (CONFIG_IS_ENABLED(OF_CONTROL)) {
664 ret = spl_early_init();
666 debug("spl_early_init() failed: %d\n", ret);
671 preloader_console_init();
675 void board_init_r(gd_t *dummy1, ulong dummy2)
677 u32 spl_boot_list[] = {
684 struct spl_image_info spl_image;
687 debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
691 #if defined(CONFIG_SYS_SPL_MALLOC_START)
692 mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
693 CONFIG_SYS_SPL_MALLOC_SIZE);
694 gd->flags |= GD_FLG_FULL_MALLOC_INIT;
696 if (!(gd->flags & GD_FLG_SPL_INIT)) {
700 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
702 * timer_init() does not exist on PPC systems. The timer is initialized
703 * and enabled (decrementer) in interrupt_init() here.
707 if (CONFIG_IS_ENABLED(BLOBLIST)) {
708 ret = bloblist_init();
710 debug("%s: Failed to set up bloblist: ret=%d\n",
712 puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
716 if (CONFIG_IS_ENABLED(HANDOFF)) {
719 ret = setup_spl_handoff();
721 puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
726 #if CONFIG_IS_ENABLED(BOARD_INIT)
730 #if defined(CONFIG_SPL_WATCHDOG) && CONFIG_IS_ENABLED(WDT)
734 if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
735 IS_ENABLED(CONFIG_SPL_ATF))
736 dram_init_banksize();
740 memset(&spl_image, '\0', sizeof(spl_image));
741 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
742 spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
744 spl_image.boot_device = BOOT_DEVICE_NONE;
745 board_boot_order(spl_boot_list);
747 ret = boot_from_devices(&spl_image, spl_boot_list,
748 ARRAY_SIZE(spl_boot_list));
750 if (CONFIG_IS_ENABLED(SHOW_ERRORS) &&
751 CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT))
752 printf(SPL_TPL_PROMPT "failed to boot from all boot devices (err=%d)\n",
755 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
759 spl_perform_fixups(&spl_image);
760 if (CONFIG_IS_ENABLED(HANDOFF)) {
761 ret = write_spl_handoff();
763 printf(SPL_TPL_PROMPT
764 "SPL hand-off write failed (err=%d)\n", ret);
766 if (CONFIG_IS_ENABLED(BLOBLIST)) {
767 ret = bloblist_finish();
769 printf("Warning: Failed to finish bloblist (ret=%d)\n",
773 #ifdef CONFIG_CPU_V7M
774 spl_image.entry_point |= 0x1;
776 switch (spl_image.os) {
778 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
780 #if CONFIG_IS_ENABLED(ATF)
781 case IH_OS_ARM_TRUSTED_FIRMWARE:
782 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
783 spl_fixup_fdt(spl_image.fdt_addr);
784 spl_invoke_atf(&spl_image);
787 #if CONFIG_IS_ENABLED(OPTEE_IMAGE)
789 debug("Jumping to U-Boot via OP-TEE\n");
790 spl_board_prepare_for_optee(spl_image.fdt_addr);
791 jump_to_image_optee(&spl_image);
794 #if CONFIG_IS_ENABLED(OPENSBI)
796 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
797 spl_invoke_opensbi(&spl_image);
800 #ifdef CONFIG_SPL_OS_BOOT
802 debug("Jumping to Linux\n");
803 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
804 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
806 spl_board_prepare_for_linux();
807 jump_to_image_linux(&spl_image);
810 debug("Unsupported OS image.. Jumping nevertheless..\n");
812 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
813 debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
814 gd->malloc_ptr / 1024);
816 bootstage_mark_name(get_bootstage_id(false), "end phase");
817 #ifdef CONFIG_BOOTSTAGE_STASH
818 ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
819 CONFIG_BOOTSTAGE_STASH_SIZE);
821 debug("Failed to stash bootstage: err=%d\n", ret);
824 spl_board_prepare_for_boot();
825 jump_to_image_no_args(&spl_image);
829 * This requires UART clocks to be enabled. In order for this to work the
830 * caller must ensure that the gd pointer is valid.
832 void preloader_console_init(void)
834 #ifdef CONFIG_SPL_SERIAL
835 gd->baudrate = CONFIG_BAUDRATE;
837 serial_init(); /* serial communications setup */
839 gd->have_console = 1;
841 #if CONFIG_IS_ENABLED(BANNER_PRINT)
842 puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
843 U_BOOT_TIME " " U_BOOT_TZ ")\n");
845 #ifdef CONFIG_SPL_DISPLAY_PRINT
852 * This function is called before the stack is changed from initial stack to
853 * relocated stack. It tries to dump the stack size used
855 __weak void spl_relocate_stack_check(void)
857 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
858 ulong init_sp = gd->start_addr_sp;
859 ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
860 u8 *ptr = (u8 *)stack_bottom;
863 for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
864 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
868 printf("SPL initial stack usage: %lu bytes\n",
869 CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
874 * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
876 * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
877 * for the main board_init_r() execution. This is typically because we need
878 * more stack space for things like the MMC sub-system.
880 * This function calculates the stack position, copies the global_data into
881 * place, sets the new gd (except for ARM, for which setting GD within a C
882 * function may not always work) and returns the new stack position. The
883 * caller is responsible for setting up the sp register and, in the case
884 * of ARM, setting up gd.
886 * All of this is done using the same layout and alignments as done in
887 * board_init_f_init_reserve() / board_init_f_alloc_reserve().
889 * @return new stack location, or 0 to use the same stack
891 ulong spl_relocate_stack_gd(void)
893 #ifdef CONFIG_SPL_STACK_R
895 ulong ptr = CONFIG_SPL_STACK_R_ADDR;
897 if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
898 spl_relocate_stack_check();
900 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
901 if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
902 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
903 gd->malloc_ptr, gd->malloc_ptr / 1024);
904 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
905 gd->malloc_base = ptr;
906 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
910 /* Get stack position: use 8-byte alignment for ABI compliance */
911 ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
912 new_gd = (gd_t *)ptr;
913 memcpy(new_gd, (void *)gd, sizeof(gd_t));
914 #if CONFIG_IS_ENABLED(DM)
915 dm_fixup_for_gd_move(new_gd);
917 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
926 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
927 ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
928 (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
929 void bootcount_store(ulong a)
933 ulong bootcount_load(void)