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 #if CONFIG_IS_ENABLED(BINMAN_SYMBOLS)
53 /* See spl.h for information about this */
54 binman_sym_declare(ulong, u_boot_any, image_pos);
55 binman_sym_declare(ulong, u_boot_any, size);
59 binman_sym_declare(ulong, u_boot_spl, image_pos);
60 binman_sym_declare(ulong, u_boot_spl, size);
63 /* Define board data structure */
64 static struct bd_info bdata __attribute__ ((section(".data")));
66 #if CONFIG_IS_ENABLED(SHOW_BOOT_PROGRESS)
68 * Board-specific Platform code can reimplement show_boot_progress () if needed
70 __weak void show_boot_progress(int val) {}
73 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) || \
74 defined(CONFIG_SPL_ATF)
75 /* weak, default platform-specific function to initialize dram banks */
76 __weak int dram_init_banksize(void)
83 * Default function to determine if u-boot or the OS should
84 * be started. This implementation always returns 1.
86 * Please implement your own board specific funcion to do this.
89 * 0 to not start u-boot
90 * positive if u-boot should start
92 #if CONFIG_IS_ENABLED(OS_BOOT)
93 __weak int spl_start_uboot(void)
96 "Please implement spl_start_uboot() for your board\n");
97 puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
102 * Weak default function for arch specific zImage check. Return zero
103 * and fill start and end address if image is recognized.
105 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
111 /* Weak default function for arch/board-specific fixups to the spl_image_info */
112 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
116 void spl_fixup_fdt(void *fdt_blob)
118 #if defined(CONFIG_SPL_OF_LIBFDT)
124 err = fdt_check_header(fdt_blob);
126 printf("fdt_root: %s\n", fdt_strerror(err));
130 /* fixup the memory dt node */
131 err = fdt_shrink_to_minimum(fdt_blob, 0);
133 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
137 err = arch_fixup_fdt(fdt_blob);
139 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
145 #if CONFIG_IS_ENABLED(BINMAN_SYMBOLS)
146 ulong spl_get_image_pos(void)
148 return spl_phase() == PHASE_TPL ?
149 binman_sym(ulong, u_boot_spl, image_pos) :
150 binman_sym(ulong, u_boot_any, image_pos);
153 ulong spl_get_image_size(void)
155 return spl_phase() == PHASE_TPL ?
156 binman_sym(ulong, u_boot_spl, size) :
157 binman_sym(ulong, u_boot_any, size);
159 #endif /* BINMAN_SYMBOLS */
161 ulong spl_get_image_text_base(void)
163 return spl_phase() == PHASE_TPL ? CONFIG_SPL_TEXT_BASE :
164 CONFIG_SYS_TEXT_BASE;
168 * Weak default function for board specific cleanup/preparation before
169 * Linux boot. Some boards/platforms might not need it, so just provide
170 * an empty stub here.
172 __weak void spl_board_prepare_for_linux(void)
177 __weak void spl_board_prepare_for_optee(void *fdt)
181 __weak const char *spl_board_loader_name(u32 boot_device)
186 #if CONFIG_IS_ENABLED(OPTEE_IMAGE)
187 __weak void __noreturn jump_to_image_optee(struct spl_image_info *spl_image)
189 spl_optee_entry(NULL, NULL, spl_image->fdt_addr,
190 (void *)spl_image->entry_point);
194 __weak void spl_board_prepare_for_boot(void)
199 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
201 return map_sysmem(CONFIG_SYS_TEXT_BASE + offset, 0);
204 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
206 ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
208 spl_image->size = CONFIG_SYS_MONITOR_LEN;
211 * Binman error cases: address of the end of the previous region or the
212 * start of the image's entry area (usually 0) if there is no previous
215 if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
216 /* Binman does not support separated entry addresses */
217 spl_image->entry_point = u_boot_pos;
218 spl_image->load_addr = u_boot_pos;
220 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
221 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
223 spl_image->os = IH_OS_U_BOOT;
224 spl_image->name = "U-Boot";
227 #if CONFIG_IS_ENABLED(LOAD_FIT_FULL)
228 /* Parse and load full fitImage in SPL */
229 static int spl_load_fit_image(struct spl_image_info *spl_image,
230 const struct image_header *header)
232 bootm_headers_t images;
233 const char *fit_uname_config = NULL;
236 ulong fw_data = 0, dt_data = 0, img_data = 0;
237 ulong fw_len = 0, dt_len = 0, img_len = 0;
238 int idx, conf_noffset;
241 #ifdef CONFIG_SPL_FIT_SIGNATURE
244 ret = fit_image_load(&images, (ulong)header,
245 NULL, &fit_uname_config,
246 IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
247 FIT_LOAD_OPTIONAL, &fw_data, &fw_len);
249 printf("DEPRECATED: 'standalone = ' property.");
250 printf("Please use either 'firmware =' or 'kernel ='\n");
252 ret = fit_image_load(&images, (ulong)header, NULL,
253 &fit_uname_config, IH_ARCH_DEFAULT,
254 IH_TYPE_FIRMWARE, -1, FIT_LOAD_OPTIONAL,
259 ret = fit_image_load(&images, (ulong)header, NULL,
260 &fit_uname_config, IH_ARCH_DEFAULT,
261 IH_TYPE_KERNEL, -1, FIT_LOAD_OPTIONAL,
268 spl_image->size = fw_len;
269 spl_image->entry_point = fw_data;
270 spl_image->load_addr = fw_data;
271 if (fit_image_get_os(header, ret, &spl_image->os))
272 spl_image->os = IH_OS_INVALID;
273 spl_image->name = genimg_get_os_name(spl_image->os);
275 debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
276 spl_image->name, spl_image->load_addr, spl_image->size);
278 #ifdef CONFIG_SPL_FIT_SIGNATURE
281 ret = fit_image_load(&images, (ulong)header, NULL, &fit_uname_config,
282 IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
283 FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
285 spl_image->fdt_addr = (void *)dt_data;
287 if (spl_image->os == IH_OS_U_BOOT) {
288 /* HACK: U-boot expects FDT at a specific address */
289 fdt_hack = spl_image->load_addr + spl_image->size;
290 fdt_hack = (fdt_hack + 3) & ~3;
291 debug("Relocating FDT to %p\n", spl_image->fdt_addr);
292 memcpy((void *)fdt_hack, spl_image->fdt_addr, dt_len);
296 conf_noffset = fit_conf_get_node((const void *)header,
298 if (conf_noffset <= 0)
302 uname = fdt_stringlist_get((const void *)header, conf_noffset,
303 FIT_LOADABLE_PROP, idx,
307 #ifdef CONFIG_SPL_FIT_SIGNATURE
310 ret = fit_image_load(&images, (ulong)header,
311 &uname, &fit_uname_config,
312 IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
313 FIT_LOAD_OPTIONAL_NON_ZERO,
314 &img_data, &img_len);
323 __weak int spl_parse_board_header(struct spl_image_info *spl_image,
324 const struct spl_boot_device *bootdev,
325 const void *image_header, size_t size)
330 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
331 const struct image_header *header)
333 /* LEGACY image not supported */
334 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
338 int spl_parse_image_header(struct spl_image_info *spl_image,
339 const struct spl_boot_device *bootdev,
340 const struct image_header *header)
342 #if CONFIG_IS_ENABLED(LOAD_FIT_FULL)
343 int ret = spl_load_fit_image(spl_image, header);
348 if (image_get_magic(header) == IH_MAGIC) {
351 ret = spl_parse_legacy_header(spl_image, header);
355 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
357 * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
358 * code which loads images in SPL cannot guarantee that
359 * absolutely all read errors will be reported.
360 * An example is the LPC32XX MLC NAND driver, which
361 * will consider that a completely unreadable NAND block
362 * is bad, and thus should be skipped silently.
364 panic("** no mkimage signature but raw image not supported");
367 #if CONFIG_IS_ENABLED(OS_BOOT)
370 if (!bootz_setup((ulong)header, &start, &end)) {
371 spl_image->name = "Linux";
372 spl_image->os = IH_OS_LINUX;
373 spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
374 spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
375 spl_image->size = end - start;
377 "payload zImage, load addr: 0x%lx size: %d\n",
378 spl_image->load_addr, spl_image->size);
383 if (!spl_parse_board_header(spl_image, bootdev, (const void *)header, sizeof(*header)))
386 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
387 /* Signature not found - assume u-boot.bin */
388 debug("mkimage signature not found - ih_magic = %x\n",
390 spl_set_header_raw_uboot(spl_image);
392 /* RAW image not supported, proceed to other boot methods. */
393 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
401 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
403 typedef void __noreturn (*image_entry_noargs_t)(void);
405 image_entry_noargs_t image_entry =
406 (image_entry_noargs_t)spl_image->entry_point;
408 debug("image entry point: 0x%lx\n", spl_image->entry_point);
412 #if CONFIG_IS_ENABLED(HANDOFF)
414 * Set up the SPL hand-off information
416 * This is initially empty (zero) but can be written by
418 static int setup_spl_handoff(void)
420 struct spl_handoff *ho;
422 ho = bloblist_ensure(BLOBLISTT_U_BOOT_SPL_HANDOFF, sizeof(struct spl_handoff));
429 __weak int handoff_arch_save(struct spl_handoff *ho)
434 static int write_spl_handoff(void)
436 struct spl_handoff *ho;
439 ho = bloblist_find(BLOBLISTT_U_BOOT_SPL_HANDOFF, sizeof(struct spl_handoff));
442 handoff_save_dram(ho);
443 ret = handoff_arch_save(ho);
446 debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
451 static inline int setup_spl_handoff(void) { return 0; }
452 static inline int write_spl_handoff(void) { return 0; }
457 * get_bootstage_id() - Get the bootstage ID to emit
459 * @start: true if this is for starting SPL, false for ending it
460 * Return: bootstage ID to use
462 static enum bootstage_id get_bootstage_id(bool start)
464 enum u_boot_phase phase = spl_phase();
466 if (IS_ENABLED(CONFIG_TPL_BUILD) && phase == PHASE_TPL)
467 return start ? BOOTSTAGE_ID_START_TPL : BOOTSTAGE_ID_END_TPL;
469 return start ? BOOTSTAGE_ID_START_SPL : BOOTSTAGE_ID_END_SPL;
472 static int spl_common_init(bool setup_malloc)
476 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
478 #ifdef CONFIG_MALLOC_F_ADDR
479 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
481 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
485 ret = bootstage_init(u_boot_first_phase());
487 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
491 #ifdef CONFIG_BOOTSTAGE_STASH
492 if (!u_boot_first_phase()) {
493 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
494 CONFIG_BOOTSTAGE_STASH_SIZE);
496 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
498 debug("%s: Failed to unstash bootstage: ret=%d\n",
501 #endif /* CONFIG_BOOTSTAGE_STASH */
502 bootstage_mark_name(get_bootstage_id(true),
503 spl_phase_name(spl_phase()));
504 #if CONFIG_IS_ENABLED(LOG)
507 debug("%s: Failed to set up logging\n", __func__);
511 if (CONFIG_IS_ENABLED(OF_REAL)) {
512 ret = fdtdec_setup();
514 debug("fdtdec_setup() returned error %d\n", ret);
518 if (CONFIG_IS_ENABLED(DM)) {
519 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
520 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
521 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
522 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
523 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
525 debug("dm_init_and_scan() returned error %d\n", ret);
533 void spl_set_bd(void)
536 * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
543 int spl_early_init(void)
547 debug("%s\n", __func__);
549 ret = spl_common_init(true);
552 gd->flags |= GD_FLG_SPL_EARLY_INIT;
560 bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
561 IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
563 debug("%s\n", __func__);
565 if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
566 ret = spl_common_init(setup_malloc);
570 gd->flags |= GD_FLG_SPL_INIT;
575 #ifndef BOOT_DEVICE_NONE
576 #define BOOT_DEVICE_NONE 0xdeadbeef
579 __weak void board_boot_order(u32 *spl_boot_list)
581 spl_boot_list[0] = spl_boot_device();
584 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
586 struct spl_image_loader *drv =
587 ll_entry_start(struct spl_image_loader, spl_image_loader);
589 ll_entry_count(struct spl_image_loader, spl_image_loader);
590 struct spl_image_loader *entry;
592 for (entry = drv; entry != drv + n_ents; entry++) {
593 if (boot_device == entry->boot_device)
601 __weak int spl_check_board_image(struct spl_image_info *spl_image,
602 const struct spl_boot_device *bootdev)
607 static int spl_load_image(struct spl_image_info *spl_image,
608 struct spl_image_loader *loader)
611 struct spl_boot_device bootdev;
613 bootdev.boot_device = loader->boot_device;
614 bootdev.boot_device_name = NULL;
616 ret = loader->load_image(spl_image, &bootdev);
617 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
618 if (!ret && spl_image->dcrc_length) {
620 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
621 spl_image->dcrc_length, CHUNKSZ_CRC32);
622 if (dcrc != spl_image->dcrc) {
623 puts("SPL: Image data CRC check failed!\n");
629 ret = spl_check_board_image(spl_image, &bootdev);
635 * boot_from_devices() - Try loading a booting U-Boot from a list of devices
637 * @spl_image: Place to put the image details if successful
638 * @spl_boot_list: List of boot devices to try
639 * @count: Number of elements in spl_boot_list
640 * Return: 0 if OK, -ENODEV if there were no boot devices
641 * if CONFIG_SHOW_ERRORS is enabled, returns -ENXIO if there were
642 * devices but none worked
644 static int boot_from_devices(struct spl_image_info *spl_image,
645 u32 spl_boot_list[], int count)
650 for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
651 struct spl_image_loader *loader;
652 int bootdev = spl_boot_list[i];
654 if (CONFIG_IS_ENABLED(SHOW_ERRORS))
656 loader = spl_ll_find_loader(bootdev);
657 if (CONFIG_IS_ENABLED(SERIAL) &&
658 CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT) &&
659 !IS_ENABLED(CONFIG_SILENT_CONSOLE)) {
661 printf("Trying to boot from %s\n",
662 spl_loader_name(loader));
663 else if (CONFIG_IS_ENABLED(SHOW_ERRORS))
664 printf(SPL_TPL_PROMPT
665 "Unsupported Boot Device %d\n", bootdev);
667 puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
669 if (loader && !spl_load_image(spl_image, loader)) {
670 spl_image->boot_device = bootdev;
678 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
679 void board_init_f(ulong dummy)
681 if (CONFIG_IS_ENABLED(OF_CONTROL)) {
684 ret = spl_early_init();
686 debug("spl_early_init() failed: %d\n", ret);
691 preloader_console_init();
695 void board_init_r(gd_t *dummy1, ulong dummy2)
697 u32 spl_boot_list[] = {
704 struct spl_image_info spl_image;
707 debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
711 #if defined(CONFIG_SYS_SPL_MALLOC_START)
712 mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
713 CONFIG_SYS_SPL_MALLOC_SIZE);
714 gd->flags |= GD_FLG_FULL_MALLOC_INIT;
716 if (!(gd->flags & GD_FLG_SPL_INIT)) {
720 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
722 * timer_init() does not exist on PPC systems. The timer is initialized
723 * and enabled (decrementer) in interrupt_init() here.
727 if (CONFIG_IS_ENABLED(BLOBLIST)) {
728 ret = bloblist_init();
730 debug("%s: Failed to set up bloblist: ret=%d\n",
732 puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
736 if (CONFIG_IS_ENABLED(HANDOFF)) {
739 ret = setup_spl_handoff();
741 puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
746 #if CONFIG_IS_ENABLED(BOARD_INIT)
750 #if defined(CONFIG_SPL_WATCHDOG) && CONFIG_IS_ENABLED(WDT)
754 if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
755 IS_ENABLED(CONFIG_SPL_ATF))
756 dram_init_banksize();
760 memset(&spl_image, '\0', sizeof(spl_image));
761 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
762 spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
764 spl_image.boot_device = BOOT_DEVICE_NONE;
765 board_boot_order(spl_boot_list);
767 ret = boot_from_devices(&spl_image, spl_boot_list,
768 ARRAY_SIZE(spl_boot_list));
770 if (CONFIG_IS_ENABLED(SHOW_ERRORS) &&
771 CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT))
772 printf(SPL_TPL_PROMPT "failed to boot from all boot devices (err=%d)\n",
775 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
779 spl_perform_fixups(&spl_image);
780 if (CONFIG_IS_ENABLED(HANDOFF)) {
781 ret = write_spl_handoff();
783 printf(SPL_TPL_PROMPT
784 "SPL hand-off write failed (err=%d)\n", ret);
786 if (CONFIG_IS_ENABLED(BLOBLIST)) {
787 ret = bloblist_finish();
789 printf("Warning: Failed to finish bloblist (ret=%d)\n",
793 switch (spl_image.os) {
795 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
797 #if CONFIG_IS_ENABLED(ATF)
798 case IH_OS_ARM_TRUSTED_FIRMWARE:
799 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
800 spl_fixup_fdt(spl_image.fdt_addr);
801 spl_invoke_atf(&spl_image);
804 #if CONFIG_IS_ENABLED(OPTEE_IMAGE)
806 debug("Jumping to U-Boot via OP-TEE\n");
807 spl_board_prepare_for_optee(spl_image.fdt_addr);
808 jump_to_image_optee(&spl_image);
811 #if CONFIG_IS_ENABLED(OPENSBI)
813 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
814 spl_invoke_opensbi(&spl_image);
817 #if CONFIG_IS_ENABLED(OS_BOOT)
819 debug("Jumping to Linux\n");
820 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
821 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
823 spl_board_prepare_for_linux();
824 jump_to_image_linux(&spl_image);
827 debug("Unsupported OS image.. Jumping nevertheless..\n");
829 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
830 debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
831 gd->malloc_ptr / 1024);
833 bootstage_mark_name(get_bootstage_id(false), "end phase");
834 #ifdef CONFIG_BOOTSTAGE_STASH
835 ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
836 CONFIG_BOOTSTAGE_STASH_SIZE);
838 debug("Failed to stash bootstage: err=%d\n", ret);
841 spl_board_prepare_for_boot();
842 jump_to_image_no_args(&spl_image);
846 * This requires UART clocks to be enabled. In order for this to work the
847 * caller must ensure that the gd pointer is valid.
849 void preloader_console_init(void)
851 #ifdef CONFIG_SPL_SERIAL
852 gd->baudrate = CONFIG_BAUDRATE;
854 serial_init(); /* serial communications setup */
856 gd->have_console = 1;
858 #if CONFIG_IS_ENABLED(BANNER_PRINT)
859 puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
860 U_BOOT_TIME " " U_BOOT_TZ ")\n");
862 #ifdef CONFIG_SPL_DISPLAY_PRINT
869 * This function is called before the stack is changed from initial stack to
870 * relocated stack. It tries to dump the stack size used
872 __weak void spl_relocate_stack_check(void)
874 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
875 ulong init_sp = gd->start_addr_sp;
876 ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
877 u8 *ptr = (u8 *)stack_bottom;
880 for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
881 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
885 printf("SPL initial stack usage: %lu bytes\n",
886 CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
891 * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
893 * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
894 * for the main board_init_r() execution. This is typically because we need
895 * more stack space for things like the MMC sub-system.
897 * This function calculates the stack position, copies the global_data into
898 * place, sets the new gd (except for ARM, for which setting GD within a C
899 * function may not always work) and returns the new stack position. The
900 * caller is responsible for setting up the sp register and, in the case
901 * of ARM, setting up gd.
903 * All of this is done using the same layout and alignments as done in
904 * board_init_f_init_reserve() / board_init_f_alloc_reserve().
906 * Return: new stack location, or 0 to use the same stack
908 ulong spl_relocate_stack_gd(void)
910 #ifdef CONFIG_SPL_STACK_R
912 ulong ptr = CONFIG_SPL_STACK_R_ADDR;
914 if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
915 spl_relocate_stack_check();
917 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
918 if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
919 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
920 gd->malloc_ptr, gd->malloc_ptr / 1024);
921 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
922 gd->malloc_base = ptr;
923 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
927 /* Get stack position: use 8-byte alignment for ABI compliance */
928 ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
929 new_gd = (gd_t *)ptr;
930 memcpy(new_gd, (void *)gd, sizeof(gd_t));
931 #if CONFIG_IS_ENABLED(DM)
932 dm_fixup_for_gd_move(new_gd);
934 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
943 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
944 ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
945 (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
946 void bootcount_store(ulong a)
950 ulong bootcount_load(void)