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>
32 #include <linux/compiler.h>
33 #include <fdt_support.h>
34 #include <bootcount.h>
37 DECLARE_GLOBAL_DATA_PTR;
39 #ifndef CONFIG_SYS_UBOOT_START
40 #define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
42 #ifndef CONFIG_SYS_MONITOR_LEN
43 /* Unknown U-Boot size, let's assume it will not be more than 200 KB */
44 #define CONFIG_SYS_MONITOR_LEN (200 * 1024)
47 u32 *boot_params_ptr = NULL;
49 /* See spl.h for information about this */
50 binman_sym_declare(ulong, u_boot_any, image_pos);
51 binman_sym_declare(ulong, u_boot_any, size);
54 binman_sym_declare(ulong, spl, image_pos);
55 binman_sym_declare(ulong, spl, size);
58 /* Define board data structure */
59 static struct bd_info bdata __attribute__ ((section(".data")));
61 #if CONFIG_IS_ENABLED(BOOTSTAGE)
63 * Board-specific Platform code can reimplement show_boot_progress () if needed
65 __weak void show_boot_progress(int val) {}
68 #if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) || \
69 defined(CONFIG_SPL_ATF)
70 /* weak, default platform-specific function to initialize dram banks */
71 __weak int dram_init_banksize(void)
78 * Default function to determine if u-boot or the OS should
79 * be started. This implementation always returns 1.
81 * Please implement your own board specific funcion to do this.
84 * 0 to not start u-boot
85 * positive if u-boot should start
87 #ifdef CONFIG_SPL_OS_BOOT
88 __weak int spl_start_uboot(void)
91 "Please implement spl_start_uboot() for your board\n");
92 puts(SPL_TPL_PROMPT "Direct Linux boot not active!\n");
97 * Weak default function for arch specific zImage check. Return zero
98 * and fill start and end address if image is recognized.
100 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
106 /* Weak default function for arch/board-specific fixups to the spl_image_info */
107 void __weak spl_perform_fixups(struct spl_image_info *spl_image)
111 void spl_fixup_fdt(void *fdt_blob)
113 #if defined(CONFIG_SPL_OF_LIBFDT)
119 err = fdt_check_header(fdt_blob);
121 printf("fdt_root: %s\n", fdt_strerror(err));
125 /* fixup the memory dt node */
126 err = fdt_shrink_to_minimum(fdt_blob, 0);
128 printf(SPL_TPL_PROMPT "fdt_shrink_to_minimum err - %d\n", err);
132 err = arch_fixup_fdt(fdt_blob);
134 printf(SPL_TPL_PROMPT "arch_fixup_fdt err - %d\n", err);
140 ulong spl_get_image_pos(void)
142 return spl_phase() == PHASE_TPL ?
143 binman_sym(ulong, spl, image_pos) :
144 binman_sym(ulong, u_boot_any, image_pos);
147 ulong spl_get_image_size(void)
149 return spl_phase() == PHASE_TPL ?
150 binman_sym(ulong, spl, size) :
151 binman_sym(ulong, u_boot_any, size);
154 ulong spl_get_image_text_base(void)
156 return spl_phase() == PHASE_TPL ? CONFIG_SPL_TEXT_BASE :
157 CONFIG_SYS_TEXT_BASE;
161 * Weak default function for board specific cleanup/preparation before
162 * Linux boot. Some boards/platforms might not need it, so just provide
163 * an empty stub here.
165 __weak void spl_board_prepare_for_linux(void)
170 __weak void spl_board_prepare_for_boot(void)
175 __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
177 return map_sysmem(CONFIG_SYS_TEXT_BASE + offset, 0);
180 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
182 ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
184 spl_image->size = CONFIG_SYS_MONITOR_LEN;
187 * Binman error cases: address of the end of the previous region or the
188 * start of the image's entry area (usually 0) if there is no previous
191 if (u_boot_pos && u_boot_pos != BINMAN_SYM_MISSING) {
192 /* Binman does not support separated entry addresses */
193 spl_image->entry_point = u_boot_pos;
194 spl_image->load_addr = u_boot_pos;
196 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
197 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
199 spl_image->os = IH_OS_U_BOOT;
200 spl_image->name = "U-Boot";
203 #ifdef CONFIG_SPL_LOAD_FIT_FULL
204 /* Parse and load full fitImage in SPL */
205 static int spl_load_fit_image(struct spl_image_info *spl_image,
206 const struct image_header *header)
208 bootm_headers_t images;
209 const char *fit_uname_config = NULL;
212 ulong fw_data = 0, dt_data = 0, img_data = 0;
213 ulong fw_len = 0, dt_len = 0, img_len = 0;
214 int idx, conf_noffset;
217 #ifdef CONFIG_SPL_FIT_SIGNATURE
220 ret = fit_image_load(&images, (ulong)header,
221 NULL, &fit_uname_config,
222 IH_ARCH_DEFAULT, IH_TYPE_STANDALONE, -1,
223 FIT_LOAD_OPTIONAL, &fw_data, &fw_len);
225 printf("DEPRECATED: 'standalone = ' property.");
226 printf("Please use either 'firmware =' or 'kernel ='\n");
228 ret = fit_image_load(&images, (ulong)header, NULL,
229 &fit_uname_config, IH_ARCH_DEFAULT,
230 IH_TYPE_FIRMWARE, -1, FIT_LOAD_OPTIONAL,
235 ret = fit_image_load(&images, (ulong)header, NULL,
236 &fit_uname_config, IH_ARCH_DEFAULT,
237 IH_TYPE_KERNEL, -1, FIT_LOAD_OPTIONAL,
244 spl_image->size = fw_len;
245 spl_image->entry_point = fw_data;
246 spl_image->load_addr = fw_data;
247 if (fit_image_get_os(header, ret, &spl_image->os))
248 spl_image->os = IH_OS_INVALID;
249 spl_image->name = genimg_get_os_name(spl_image->os);
251 debug(SPL_TPL_PROMPT "payload image: %32s load addr: 0x%lx size: %d\n",
252 spl_image->name, spl_image->load_addr, spl_image->size);
254 #ifdef CONFIG_SPL_FIT_SIGNATURE
257 ret = fit_image_load(&images, (ulong)header, NULL, &fit_uname_config,
258 IH_ARCH_DEFAULT, IH_TYPE_FLATDT, -1,
259 FIT_LOAD_OPTIONAL, &dt_data, &dt_len);
261 spl_image->fdt_addr = (void *)dt_data;
263 if (spl_image->os == IH_OS_U_BOOT) {
264 /* HACK: U-boot expects FDT at a specific address */
265 fdt_hack = spl_image->load_addr + spl_image->size;
266 fdt_hack = (fdt_hack + 3) & ~3;
267 debug("Relocating FDT to %p\n", spl_image->fdt_addr);
268 memcpy((void *)fdt_hack, spl_image->fdt_addr, dt_len);
272 conf_noffset = fit_conf_get_node((const void *)header,
274 if (conf_noffset <= 0)
278 uname = fdt_stringlist_get((const void *)header, conf_noffset,
279 FIT_LOADABLE_PROP, idx,
283 #ifdef CONFIG_SPL_FIT_SIGNATURE
286 ret = fit_image_load(&images, (ulong)header,
287 &uname, &fit_uname_config,
288 IH_ARCH_DEFAULT, IH_TYPE_LOADABLE, -1,
289 FIT_LOAD_OPTIONAL_NON_ZERO,
290 &img_data, &img_len);
299 __weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
300 const struct image_header *header)
302 /* LEGACY image not supported */
303 debug("Legacy boot image support not enabled, proceeding to other boot methods\n");
307 int spl_parse_image_header(struct spl_image_info *spl_image,
308 const struct image_header *header)
310 #ifdef CONFIG_SPL_LOAD_FIT_FULL
311 int ret = spl_load_fit_image(spl_image, header);
316 if (image_get_magic(header) == IH_MAGIC) {
319 ret = spl_parse_legacy_header(spl_image, header);
323 #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
325 * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
326 * code which loads images in SPL cannot guarantee that
327 * absolutely all read errors will be reported.
328 * An example is the LPC32XX MLC NAND driver, which
329 * will consider that a completely unreadable NAND block
330 * is bad, and thus should be skipped silently.
332 panic("** no mkimage signature but raw image not supported");
335 #ifdef CONFIG_SPL_OS_BOOT
338 if (!bootz_setup((ulong)header, &start, &end)) {
339 spl_image->name = "Linux";
340 spl_image->os = IH_OS_LINUX;
341 spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
342 spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
343 spl_image->size = end - start;
345 "payload zImage, load addr: 0x%lx size: %d\n",
346 spl_image->load_addr, spl_image->size);
351 #ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
352 /* Signature not found - assume u-boot.bin */
353 debug("mkimage signature not found - ih_magic = %x\n",
355 spl_set_header_raw_uboot(spl_image);
357 /* RAW image not supported, proceed to other boot methods. */
358 debug("Raw boot image support not enabled, proceeding to other boot methods\n");
366 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
368 typedef void __noreturn (*image_entry_noargs_t)(void);
370 image_entry_noargs_t image_entry =
371 (image_entry_noargs_t)spl_image->entry_point;
373 debug("image entry point: 0x%lx\n", spl_image->entry_point);
377 #if CONFIG_IS_ENABLED(HANDOFF)
379 * Set up the SPL hand-off information
381 * This is initially empty (zero) but can be written by
383 static int setup_spl_handoff(void)
385 struct spl_handoff *ho;
387 ho = bloblist_ensure(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
394 __weak int handoff_arch_save(struct spl_handoff *ho)
399 static int write_spl_handoff(void)
401 struct spl_handoff *ho;
404 ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(struct spl_handoff));
407 handoff_save_dram(ho);
408 ret = handoff_arch_save(ho);
411 debug(SPL_TPL_PROMPT "Wrote SPL handoff\n");
416 static inline int setup_spl_handoff(void) { return 0; }
417 static inline int write_spl_handoff(void) { return 0; }
422 * get_bootstage_id() - Get the bootstage ID to emit
424 * @start: true if this is for starting SPL, false for ending it
425 * @return bootstage ID to use
427 static enum bootstage_id get_bootstage_id(bool start)
429 enum u_boot_phase phase = spl_phase();
431 if (IS_ENABLED(CONFIG_TPL_BUILD) && phase == PHASE_TPL)
432 return start ? BOOTSTAGE_ID_START_TPL : BOOTSTAGE_ID_END_TPL;
434 return start ? BOOTSTAGE_ID_START_SPL : BOOTSTAGE_ID_END_SPL;
437 static int spl_common_init(bool setup_malloc)
441 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
443 #ifdef CONFIG_MALLOC_F_ADDR
444 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
446 gd->malloc_limit = CONFIG_VAL(SYS_MALLOC_F_LEN);
450 ret = bootstage_init(u_boot_first_phase());
452 debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
456 #ifdef CONFIG_BOOTSTAGE_STASH
457 if (!u_boot_first_phase()) {
458 const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
459 CONFIG_BOOTSTAGE_STASH_SIZE);
461 ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
463 debug("%s: Failed to unstash bootstage: ret=%d\n",
466 #endif /* CONFIG_BOOTSTAGE_STASH */
467 bootstage_mark_name(get_bootstage_id(true),
468 spl_phase_name(spl_phase()));
469 #if CONFIG_IS_ENABLED(LOG)
472 debug("%s: Failed to set up logging\n", __func__);
476 if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
477 ret = fdtdec_setup();
479 debug("fdtdec_setup() returned error %d\n", ret);
483 if (CONFIG_IS_ENABLED(DM)) {
484 bootstage_start(BOOTSTAGE_ID_ACCUM_DM_SPL,
485 spl_phase() == PHASE_TPL ? "dm tpl" : "dm_spl");
486 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
487 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
488 bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_SPL);
490 debug("dm_init_and_scan() returned error %d\n", ret);
498 void spl_set_bd(void)
501 * NOTE: On some platforms (e.g. x86) bdata may be in flash and not
508 int spl_early_init(void)
512 debug("%s\n", __func__);
514 ret = spl_common_init(true);
517 gd->flags |= GD_FLG_SPL_EARLY_INIT;
525 bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
526 IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
528 debug("%s\n", __func__);
530 if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
531 ret = spl_common_init(setup_malloc);
535 gd->flags |= GD_FLG_SPL_INIT;
540 #ifndef BOOT_DEVICE_NONE
541 #define BOOT_DEVICE_NONE 0xdeadbeef
544 __weak void board_boot_order(u32 *spl_boot_list)
546 spl_boot_list[0] = spl_boot_device();
549 static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
551 struct spl_image_loader *drv =
552 ll_entry_start(struct spl_image_loader, spl_image_loader);
554 ll_entry_count(struct spl_image_loader, spl_image_loader);
555 struct spl_image_loader *entry;
557 for (entry = drv; entry != drv + n_ents; entry++) {
558 if (boot_device == entry->boot_device)
566 static int spl_load_image(struct spl_image_info *spl_image,
567 struct spl_image_loader *loader)
570 struct spl_boot_device bootdev;
572 bootdev.boot_device = loader->boot_device;
573 bootdev.boot_device_name = NULL;
575 ret = loader->load_image(spl_image, &bootdev);
576 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
577 if (!ret && spl_image->dcrc_length) {
579 ulong dcrc = crc32_wd(0, (unsigned char *)spl_image->dcrc_data,
580 spl_image->dcrc_length, CHUNKSZ_CRC32);
581 if (dcrc != spl_image->dcrc) {
582 puts("SPL: Image data CRC check failed!\n");
591 * boot_from_devices() - Try loading a booting U-Boot from a list of devices
593 * @spl_image: Place to put the image details if successful
594 * @spl_boot_list: List of boot devices to try
595 * @count: Number of elements in spl_boot_list
596 * @return 0 if OK, -ENODEV if there were no boot devices
597 * if CONFIG_SHOW_ERRORS is enabled, returns -ENXIO if there were
598 * devices but none worked
600 static int boot_from_devices(struct spl_image_info *spl_image,
601 u32 spl_boot_list[], int count)
606 for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
607 struct spl_image_loader *loader;
608 int bootdev = spl_boot_list[i];
610 if (CONFIG_IS_ENABLED(SHOW_ERRORS))
612 loader = spl_ll_find_loader(bootdev);
613 if (CONFIG_IS_ENABLED(SERIAL_SUPPORT) &&
614 CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT) &&
615 !IS_ENABLED(CONFIG_SILENT_CONSOLE)) {
617 printf("Trying to boot from %s\n",
618 spl_loader_name(loader));
619 else if (CONFIG_IS_ENABLED(SHOW_ERRORS))
620 printf(SPL_TPL_PROMPT
621 "Unsupported Boot Device %d\n", bootdev);
623 puts(SPL_TPL_PROMPT "Unsupported Boot Device!\n");
625 if (loader && !spl_load_image(spl_image, loader)) {
626 spl_image->boot_device = bootdev;
634 #if defined(CONFIG_SPL_FRAMEWORK_BOARD_INIT_F)
635 void board_init_f(ulong dummy)
637 if (CONFIG_IS_ENABLED(OF_CONTROL)) {
640 ret = spl_early_init();
642 debug("spl_early_init() failed: %d\n", ret);
647 preloader_console_init();
651 void board_init_r(gd_t *dummy1, ulong dummy2)
653 u32 spl_boot_list[] = {
660 struct spl_image_info spl_image;
663 debug(">>" SPL_TPL_PROMPT "board_init_r()\n");
667 #if defined(CONFIG_SYS_SPL_MALLOC_START)
668 mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
669 CONFIG_SYS_SPL_MALLOC_SIZE);
670 gd->flags |= GD_FLG_FULL_MALLOC_INIT;
672 if (!(gd->flags & GD_FLG_SPL_INIT)) {
676 #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
678 * timer_init() does not exist on PPC systems. The timer is initialized
679 * and enabled (decrementer) in interrupt_init() here.
683 if (CONFIG_IS_ENABLED(BLOBLIST)) {
684 ret = bloblist_init();
686 debug("%s: Failed to set up bloblist: ret=%d\n",
688 puts(SPL_TPL_PROMPT "Cannot set up bloblist\n");
692 if (CONFIG_IS_ENABLED(HANDOFF)) {
695 ret = setup_spl_handoff();
697 puts(SPL_TPL_PROMPT "Cannot set up SPL handoff\n");
702 #if CONFIG_IS_ENABLED(BOARD_INIT)
706 #if defined(CONFIG_SPL_WATCHDOG_SUPPORT) && CONFIG_IS_ENABLED(WDT)
710 if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
711 IS_ENABLED(CONFIG_SPL_ATF))
712 dram_init_banksize();
716 memset(&spl_image, '\0', sizeof(spl_image));
717 #ifdef CONFIG_SYS_SPL_ARGS_ADDR
718 spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
720 spl_image.boot_device = BOOT_DEVICE_NONE;
721 board_boot_order(spl_boot_list);
723 ret = boot_from_devices(&spl_image, spl_boot_list,
724 ARRAY_SIZE(spl_boot_list));
726 if (CONFIG_IS_ENABLED(SHOW_ERRORS) &&
727 CONFIG_IS_ENABLED(LIBCOMMON_SUPPORT))
728 printf(SPL_TPL_PROMPT "failed to boot from all boot devices (err=%d)\n",
731 puts(SPL_TPL_PROMPT "failed to boot from all boot devices\n");
735 spl_perform_fixups(&spl_image);
736 if (CONFIG_IS_ENABLED(HANDOFF)) {
737 ret = write_spl_handoff();
739 printf(SPL_TPL_PROMPT
740 "SPL hand-off write failed (err=%d)\n", ret);
742 if (CONFIG_IS_ENABLED(BLOBLIST)) {
743 ret = bloblist_finish();
745 printf("Warning: Failed to finish bloblist (ret=%d)\n",
749 #ifdef CONFIG_CPU_V7M
750 spl_image.entry_point |= 0x1;
752 switch (spl_image.os) {
754 debug("Jumping to %s...\n", spl_phase_name(spl_next_phase()));
756 #if CONFIG_IS_ENABLED(ATF)
757 case IH_OS_ARM_TRUSTED_FIRMWARE:
758 debug("Jumping to U-Boot via ARM Trusted Firmware\n");
759 spl_fixup_fdt(spl_image.fdt_addr);
760 spl_invoke_atf(&spl_image);
763 #if CONFIG_IS_ENABLED(OPTEE)
765 debug("Jumping to U-Boot via OP-TEE\n");
766 spl_optee_entry(NULL, NULL, spl_image.fdt_addr,
767 (void *)spl_image.entry_point);
770 #if CONFIG_IS_ENABLED(OPENSBI)
772 debug("Jumping to U-Boot via RISC-V OpenSBI\n");
773 spl_invoke_opensbi(&spl_image);
776 #ifdef CONFIG_SPL_OS_BOOT
778 debug("Jumping to Linux\n");
779 #if defined(CONFIG_SYS_SPL_ARGS_ADDR)
780 spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
782 spl_board_prepare_for_linux();
783 jump_to_image_linux(&spl_image);
786 debug("Unsupported OS image.. Jumping nevertheless..\n");
788 #if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
789 debug("SPL malloc() used 0x%lx bytes (%ld KB)\n", gd->malloc_ptr,
790 gd->malloc_ptr / 1024);
792 bootstage_mark_name(get_bootstage_id(false), "end phase");
793 #ifdef CONFIG_BOOTSTAGE_STASH
794 ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
795 CONFIG_BOOTSTAGE_STASH_SIZE);
797 debug("Failed to stash bootstage: err=%d\n", ret);
800 spl_board_prepare_for_boot();
801 jump_to_image_no_args(&spl_image);
805 * This requires UART clocks to be enabled. In order for this to work the
806 * caller must ensure that the gd pointer is valid.
808 void preloader_console_init(void)
810 #ifdef CONFIG_SPL_SERIAL_SUPPORT
811 gd->baudrate = CONFIG_BAUDRATE;
813 serial_init(); /* serial communications setup */
815 gd->have_console = 1;
817 #if CONFIG_IS_ENABLED(BANNER_PRINT)
818 puts("\nU-Boot " SPL_TPL_NAME " " PLAIN_VERSION " (" U_BOOT_DATE " - "
819 U_BOOT_TIME " " U_BOOT_TZ ")\n");
821 #ifdef CONFIG_SPL_DISPLAY_PRINT
828 * This function is called before the stack is changed from initial stack to
829 * relocated stack. It tries to dump the stack size used
831 __weak void spl_relocate_stack_check(void)
833 #if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
834 ulong init_sp = gd->start_addr_sp;
835 ulong stack_bottom = init_sp - CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK);
836 u8 *ptr = (u8 *)stack_bottom;
839 for (i = 0; i < CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK); i++) {
840 if (*ptr != CONFIG_VAL(SYS_STACK_F_CHECK_BYTE))
844 printf("SPL initial stack usage: %lu bytes\n",
845 CONFIG_VAL(SIZE_LIMIT_PROVIDE_STACK) - i);
850 * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
852 * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
853 * for the main board_init_r() execution. This is typically because we need
854 * more stack space for things like the MMC sub-system.
856 * This function calculates the stack position, copies the global_data into
857 * place, sets the new gd (except for ARM, for which setting GD within a C
858 * function may not always work) and returns the new stack position. The
859 * caller is responsible for setting up the sp register and, in the case
860 * of ARM, setting up gd.
862 * All of this is done using the same layout and alignments as done in
863 * board_init_f_init_reserve() / board_init_f_alloc_reserve().
865 * @return new stack location, or 0 to use the same stack
867 ulong spl_relocate_stack_gd(void)
869 #ifdef CONFIG_SPL_STACK_R
871 ulong ptr = CONFIG_SPL_STACK_R_ADDR;
873 if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
874 spl_relocate_stack_check();
876 #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
877 if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
878 debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
879 gd->malloc_ptr, gd->malloc_ptr / 1024);
880 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
881 gd->malloc_base = ptr;
882 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
886 /* Get stack position: use 8-byte alignment for ABI compliance */
887 ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
888 new_gd = (gd_t *)ptr;
889 memcpy(new_gd, (void *)gd, sizeof(gd_t));
890 #if CONFIG_IS_ENABLED(DM)
891 dm_fixup_for_gd_move(new_gd);
893 #if !defined(CONFIG_ARM) && !defined(CONFIG_RISCV)
902 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
903 ((!defined(CONFIG_TPL_BUILD) && !defined(CONFIG_SPL_BOOTCOUNT_LIMIT)) || \
904 (defined(CONFIG_TPL_BUILD) && !defined(CONFIG_TPL_BOOTCOUNT_LIMIT)))
905 void bootcount_store(ulong a)
909 ulong bootcount_load(void)