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(SHOW_BOOT_PROGRESS)
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 #if CONFIG_IS_ENABLED(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 struct spl_boot_device *bootdev,
316 const void *image_header, size_t size)
321 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
322 const struct image_header *header)
324 /* LEGACY image not supported */
325 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
329 int spl_parse_image_header(struct spl_image_info *spl_image,
330 const struct spl_boot_device *bootdev,
331 const struct image_header *header)
333 #if CONFIG_IS_ENABLED(LOAD_FIT_FULL)
334 int ret = spl_load_fit_image(spl_image, header);
339 if (image_get_magic(header) == IH_MAGIC) {
342 ret = spl_parse_legacy_header(spl_image, header);
346 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
348 * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
349 * code which loads images in SPL cannot guarantee that
350 * absolutely all read errors will be reported.
351 * An example is the LPC32XX MLC NAND driver, which
352 * will consider that a completely unreadable NAND block
353 * is bad, and thus should be skipped silently.
355 panic("** no mkimage signature but raw image not supported");
358 #if CONFIG_IS_ENABLED(OS_BOOT)
361 if (!bootz_setup((ulong)header, &start, &end)) {
362 spl_image->name = "Linux";
363 spl_image->os = IH_OS_LINUX;
364 spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
365 spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
366 spl_image->size = end - start;
368 "payload zImage, load addr: 0x%lx size: %d\n",
369 spl_image->load_addr, spl_image->size);
374 if (!spl_parse_board_header(spl_image, bootdev, (const void *)header, sizeof(*header)))
377 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
378 /* Signature not found - assume u-boot.bin */
379 debug("mkimage signature not found - ih_magic = %x\n",
381 spl_set_header_raw_uboot(spl_image);
383 /* RAW image not supported, proceed to other boot methods. */
384 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
392 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
394 typedef void __noreturn (*image_entry_noargs_t)(void);
396 image_entry_noargs_t image_entry =
397 (image_entry_noargs_t)spl_image->entry_point;
399 debug("image entry point: 0x%lx\n", spl_image->entry_point);
403 #if CONFIG_IS_ENABLED(HANDOFF)
405 * Set up the SPL hand-off information
407 * This is initially empty (zero) but can be written by
409 static int setup_spl_handoff(void)
411 struct spl_handoff *ho;
413 ho = bloblist_ensure(BLOBLISTT_U_BOOT_SPL_HANDOFF, sizeof(struct spl_handoff));
420 __weak int handoff_arch_save(struct spl_handoff *ho)
425 static int write_spl_handoff(void)
427 struct spl_handoff *ho;
430 ho = bloblist_find(BLOBLISTT_U_BOOT_SPL_HANDOFF, sizeof(struct spl_handoff));
433 handoff_save_dram(ho);
434 ret = handoff_arch_save(ho);
437 debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
442 static inline int setup_spl_handoff(void) { return 0; }
443 static inline int write_spl_handoff(void) { return 0; }
448 * get_bootstage_id() - Get the bootstage ID to emit
450 * @start: true if this is for starting SPL, false for ending it
451 * @return bootstage ID to use
453 static enum bootstage_id get_bootstage_id(bool start)
455 enum u_boot_phase phase = spl_phase();
457 if (IS_ENABLED(CONFIG_TPL_BUILD) && phase == PHASE_TPL)
458 return start ? BOOTSTAGE_ID_START_TPL : BOOTSTAGE_ID_END_TPL;
460 return start ? BOOTSTAGE_ID_START_SPL : BOOTSTAGE_ID_END_SPL;
463 static int spl_common_init(bool setup_malloc)
467 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
469 #ifdef CONFIG_MALLOC_F_ADDR
470 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
472 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
476 ret = bootstage_init(u_boot_first_phase());
478 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
482 #ifdef CONFIG_BOOTSTAGE_STASH
483 if (!u_boot_first_phase()) {
484 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
485 CONFIG_BOOTSTAGE_STASH_SIZE);
487 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
489 debug("%s: Failed to unstash bootstage: ret=%d\n",
492 #endif /* CONFIG_BOOTSTAGE_STASH */
493 bootstage_mark_name(get_bootstage_id(true),
494 spl_phase_name(spl_phase()));
495 #if CONFIG_IS_ENABLED(LOG)
498 debug("%s: Failed to set up logging\n", __func__);
502 if (CONFIG_IS_ENABLED(OF_REAL)) {
503 ret = fdtdec_setup();
505 debug("fdtdec_setup() returned error %d\n", ret);
509 if (CONFIG_IS_ENABLED(DM)) {
510 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
511 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
512 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
513 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
514 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
516 debug("dm_init_and_scan() returned error %d\n", ret);
524 void spl_set_bd(void)
527 * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
534 int spl_early_init(void)
538 debug("%s\n", __func__);
540 ret = spl_common_init(true);
543 gd->flags |= GD_FLG_SPL_EARLY_INIT;
551 bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
552 IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
554 debug("%s\n", __func__);
556 if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
557 ret = spl_common_init(setup_malloc);
561 gd->flags |= GD_FLG_SPL_INIT;
566 #ifndef BOOT_DEVICE_NONE
567 #define BOOT_DEVICE_NONE 0xdeadbeef
570 __weak void board_boot_order(u32 *spl_boot_list)
572 spl_boot_list[0] = spl_boot_device();
575 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
577 struct spl_image_loader *drv =
578 ll_entry_start(struct spl_image_loader, spl_image_loader);
580 ll_entry_count(struct spl_image_loader, spl_image_loader);
581 struct spl_image_loader *entry;
583 for (entry = drv; entry != drv + n_ents; entry++) {
584 if (boot_device == entry->boot_device)
592 __weak int spl_check_board_image(struct spl_image_info *spl_image,
593 const struct spl_boot_device *bootdev)
598 static int spl_load_image(struct spl_image_info *spl_image,
599 struct spl_image_loader *loader)
602 struct spl_boot_device bootdev;
604 bootdev.boot_device = loader->boot_device;
605 bootdev.boot_device_name = NULL;
607 ret = loader->load_image(spl_image, &bootdev);
608 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
609 if (!ret && spl_image->dcrc_length) {
611 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
612 spl_image->dcrc_length, CHUNKSZ_CRC32);
613 if (dcrc != spl_image->dcrc) {
614 puts("SPL: Image data CRC check failed!\n");
620 ret = spl_check_board_image(spl_image, &bootdev);
626 * boot_from_devices() - Try loading a booting U-Boot from a list of devices
628 * @spl_image: Place to put the image details if successful
629 * @spl_boot_list: List of boot devices to try
630 * @count: Number of elements in spl_boot_list
631 * @return 0 if OK, -ENODEV if there were no boot devices
632 * if CONFIG_SHOW_ERRORS is enabled, returns -ENXIO if there were
633 * devices but none worked
635 static int boot_from_devices(struct spl_image_info *spl_image,
636 u32 spl_boot_list[], int count)
641 for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
642 struct spl_image_loader *loader;
643 int bootdev = spl_boot_list[i];
645 if (CONFIG_IS_ENABLED(SHOW_ERRORS))
647 loader = spl_ll_find_loader(bootdev);
648 if (CONFIG_IS_ENABLED(SERIAL) &&
649 CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT) &&
650 !IS_ENABLED(CONFIG_SILENT_CONSOLE)) {
652 printf("Trying to boot from %s\n",
653 spl_loader_name(loader));
654 else if (CONFIG_IS_ENABLED(SHOW_ERRORS))
655 printf(SPL_TPL_PROMPT
656 "Unsupported Boot Device %d\n", bootdev);
658 puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
660 if (loader && !spl_load_image(spl_image, loader)) {
661 spl_image->boot_device = bootdev;
669 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
670 void board_init_f(ulong dummy)
672 if (CONFIG_IS_ENABLED(OF_CONTROL)) {
675 ret = spl_early_init();
677 debug("spl_early_init() failed: %d\n", ret);
682 preloader_console_init();
686 void board_init_r(gd_t *dummy1, ulong dummy2)
688 u32 spl_boot_list[] = {
695 struct spl_image_info spl_image;
698 debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
702 #if defined(CONFIG_SYS_SPL_MALLOC_START)
703 mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
704 CONFIG_SYS_SPL_MALLOC_SIZE);
705 gd->flags |= GD_FLG_FULL_MALLOC_INIT;
707 if (!(gd->flags & GD_FLG_SPL_INIT)) {
711 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
713 * timer_init() does not exist on PPC systems. The timer is initialized
714 * and enabled (decrementer) in interrupt_init() here.
718 if (CONFIG_IS_ENABLED(BLOBLIST)) {
719 ret = bloblist_init();
721 debug("%s: Failed to set up bloblist: ret=%d\n",
723 puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
727 if (CONFIG_IS_ENABLED(HANDOFF)) {
730 ret = setup_spl_handoff();
732 puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
737 #if CONFIG_IS_ENABLED(BOARD_INIT)
741 #if defined(CONFIG_SPL_WATCHDOG) && CONFIG_IS_ENABLED(WDT)
745 if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
746 IS_ENABLED(CONFIG_SPL_ATF))
747 dram_init_banksize();
751 memset(&spl_image, '\0', sizeof(spl_image));
752 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
753 spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
755 spl_image.boot_device = BOOT_DEVICE_NONE;
756 board_boot_order(spl_boot_list);
758 ret = boot_from_devices(&spl_image, spl_boot_list,
759 ARRAY_SIZE(spl_boot_list));
761 if (CONFIG_IS_ENABLED(SHOW_ERRORS) &&
762 CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT))
763 printf(SPL_TPL_PROMPT "failed to boot from all boot devices (err=%d)\n",
766 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
770 spl_perform_fixups(&spl_image);
771 if (CONFIG_IS_ENABLED(HANDOFF)) {
772 ret = write_spl_handoff();
774 printf(SPL_TPL_PROMPT
775 "SPL hand-off write failed (err=%d)\n", ret);
777 if (CONFIG_IS_ENABLED(BLOBLIST)) {
778 ret = bloblist_finish();
780 printf("Warning: Failed to finish bloblist (ret=%d)\n",
784 switch (spl_image.os) {
786 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
788 #if CONFIG_IS_ENABLED(ATF)
789 case IH_OS_ARM_TRUSTED_FIRMWARE:
790 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
791 spl_fixup_fdt(spl_image.fdt_addr);
792 spl_invoke_atf(&spl_image);
795 #if CONFIG_IS_ENABLED(OPTEE_IMAGE)
797 debug("Jumping to U-Boot via OP-TEE\n");
798 spl_board_prepare_for_optee(spl_image.fdt_addr);
799 jump_to_image_optee(&spl_image);
802 #if CONFIG_IS_ENABLED(OPENSBI)
804 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
805 spl_invoke_opensbi(&spl_image);
808 #if CONFIG_IS_ENABLED(OS_BOOT)
810 debug("Jumping to Linux\n");
811 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
812 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
814 spl_board_prepare_for_linux();
815 jump_to_image_linux(&spl_image);
818 debug("Unsupported OS image.. Jumping nevertheless..\n");
820 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
821 debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
822 gd->malloc_ptr / 1024);
824 bootstage_mark_name(get_bootstage_id(false), "end phase");
825 #ifdef CONFIG_BOOTSTAGE_STASH
826 ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
827 CONFIG_BOOTSTAGE_STASH_SIZE);
829 debug("Failed to stash bootstage: err=%d\n", ret);
832 spl_board_prepare_for_boot();
833 jump_to_image_no_args(&spl_image);
837 * This requires UART clocks to be enabled. In order for this to work the
838 * caller must ensure that the gd pointer is valid.
840 void preloader_console_init(void)
842 #ifdef CONFIG_SPL_SERIAL
843 gd->baudrate = CONFIG_BAUDRATE;
845 serial_init(); /* serial communications setup */
847 gd->have_console = 1;
849 #if CONFIG_IS_ENABLED(BANNER_PRINT)
850 puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
851 U_BOOT_TIME " " U_BOOT_TZ ")\n");
853 #ifdef CONFIG_SPL_DISPLAY_PRINT
860 * This function is called before the stack is changed from initial stack to
861 * relocated stack. It tries to dump the stack size used
863 __weak void spl_relocate_stack_check(void)
865 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
866 ulong init_sp = gd->start_addr_sp;
867 ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
868 u8 *ptr = (u8 *)stack_bottom;
871 for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
872 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
876 printf("SPL initial stack usage: %lu bytes\n",
877 CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
882 * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
884 * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
885 * for the main board_init_r() execution. This is typically because we need
886 * more stack space for things like the MMC sub-system.
888 * This function calculates the stack position, copies the global_data into
889 * place, sets the new gd (except for ARM, for which setting GD within a C
890 * function may not always work) and returns the new stack position. The
891 * caller is responsible for setting up the sp register and, in the case
892 * of ARM, setting up gd.
894 * All of this is done using the same layout and alignments as done in
895 * board_init_f_init_reserve() / board_init_f_alloc_reserve().
897 * @return new stack location, or 0 to use the same stack
899 ulong spl_relocate_stack_gd(void)
901 #ifdef CONFIG_SPL_STACK_R
903 ulong ptr = CONFIG_SPL_STACK_R_ADDR;
905 if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
906 spl_relocate_stack_check();
908 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
909 if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
910 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
911 gd->malloc_ptr, gd->malloc_ptr / 1024);
912 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
913 gd->malloc_base = ptr;
914 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
918 /* Get stack position: use 8-byte alignment for ABI compliance */
919 ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
920 new_gd = (gd_t *)ptr;
921 memcpy(new_gd, (void *)gd, sizeof(gd_t));
922 #if CONFIG_IS_ENABLED(DM)
923 dm_fixup_for_gd_move(new_gd);
925 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
934 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
935 ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
936 (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
937 void bootcount_store(ulong a)
941 ulong bootcount_load(void)