// SPDX-License-Identifier: GPL-2.0+
/*
 * Image code used by boards (and not host tools)
 *
 * (C) Copyright 2008 Semihalf
 *
 * (C) Copyright 2000-2006
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 */

#include <common.h>
#include <bootstage.h>
#include <cpu_func.h>
#include <env.h>
#include <fpga.h>
#include <image.h>
#include <init.h>
#include <mapmem.h>
#include <rtc.h>
#include <watchdog.h>
#include <asm/cache.h>
#include <asm/global_data.h>

#ifndef CONFIG_SYS_BARGSIZE
#define CONFIG_SYS_BARGSIZE 512
#endif

DECLARE_GLOBAL_DATA_PTR;

#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
/**
 * image_get_ramdisk - get and verify ramdisk image
 * @rd_addr: ramdisk image start address
 * @arch: expected ramdisk architecture
 * @verify: checksum verification flag
 *
 * image_get_ramdisk() returns a pointer to the verified ramdisk image
 * header. Routine receives image start address and expected architecture
 * flag. Verification done covers data and header integrity and os/type/arch
 * fields checking.
 *
 * returns:
 *     pointer to a ramdisk image header, if image was found and valid
 *     otherwise, return NULL
 */
static const image_header_t *image_get_ramdisk(ulong rd_addr, u8 arch,
                                               int verify)
{
        const image_header_t *rd_hdr = (const image_header_t *)rd_addr;

        if (!image_check_magic(rd_hdr)) {
                puts("Bad Magic Number\n");
                bootstage_error(BOOTSTAGE_ID_RD_MAGIC);
                return NULL;
        }

        if (!image_check_hcrc(rd_hdr)) {
                puts("Bad Header Checksum\n");
                bootstage_error(BOOTSTAGE_ID_RD_HDR_CHECKSUM);
                return NULL;
        }

        bootstage_mark(BOOTSTAGE_ID_RD_MAGIC);
        image_print_contents(rd_hdr);

        if (verify) {
                puts("   Verifying Checksum ... ");
                if (!image_check_dcrc(rd_hdr)) {
                        puts("Bad Data CRC\n");
                        bootstage_error(BOOTSTAGE_ID_RD_CHECKSUM);
                        return NULL;
                }
                puts("OK\n");
        }

        bootstage_mark(BOOTSTAGE_ID_RD_HDR_CHECKSUM);

        if (!image_check_os(rd_hdr, IH_OS_LINUX) ||
            !image_check_arch(rd_hdr, arch) ||
            !image_check_type(rd_hdr, IH_TYPE_RAMDISK)) {
                printf("No Linux %s Ramdisk Image\n",
                       genimg_get_arch_name(arch));
                bootstage_error(BOOTSTAGE_ID_RAMDISK);
                return NULL;
        }

        return rd_hdr;
}
#endif

/*****************************************************************************/
/* Shared dual-format routines */
/*****************************************************************************/
ulong image_load_addr = CONFIG_SYS_LOAD_ADDR;   /* Default Load Address */
ulong image_save_addr;                  /* Default Save Address */
ulong image_save_size;                  /* Default Save Size (in bytes) */

static int on_loadaddr(const char *name, const char *value, enum env_op op,
                       int flags)
{
        switch (op) {
        case env_op_create:
        case env_op_overwrite:
                image_load_addr = hextoul(value, NULL);
                break;
        default:
                break;
        }

        return 0;
}
U_BOOT_ENV_CALLBACK(loadaddr, on_loadaddr);

ulong env_get_bootm_low(void)
{
        char *s = env_get("bootm_low");

        if (s) {
                ulong tmp = hextoul(s, NULL);
                return tmp;
        }

#if defined(CONFIG_SYS_SDRAM_BASE)
        return CONFIG_SYS_SDRAM_BASE;
#elif defined(CONFIG_ARM) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_RISCV)
        return gd->bd->bi_dram[0].start;
#else
        return 0;
#endif
}

phys_size_t env_get_bootm_size(void)
{
        phys_size_t tmp, size;
        phys_addr_t start;
        char *s = env_get("bootm_size");

        if (s) {
                tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
                return tmp;
        }

        start = gd->ram_base;
        size = gd->ram_size;

        if (start + size > gd->ram_top)
                size = gd->ram_top - start;

        s = env_get("bootm_low");
        if (s)
                tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
        else
                tmp = start;

        return size - (tmp - start);
}

phys_size_t env_get_bootm_mapsize(void)
{
        phys_size_t tmp;
        char *s = env_get("bootm_mapsize");

        if (s) {
                tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
                return tmp;
        }

#if defined(CONFIG_SYS_BOOTMAPSZ)
        return CONFIG_SYS_BOOTMAPSZ;
#else
        return env_get_bootm_size();
#endif
}

void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
{
        if (to == from)
                return;

#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
        if (to > from) {
                from += len;
                to += len;
        }
        while (len > 0) {
                size_t tail = (len > chunksz) ? chunksz : len;

                WATCHDOG_RESET();
                if (to > from) {
                        to -= tail;
                        from -= tail;
                }
                memmove(to, from, tail);
                if (to < from) {
                        to += tail;
                        from += tail;
                }
                len -= tail;
        }
#else   /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
        memmove(to, from, len);
#endif  /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
}

/**
 * genimg_get_kernel_addr_fit - get the real kernel address and return 2
 *                              FIT strings
 * @img_addr: a string might contain real image address
 * @fit_uname_config: double pointer to a char, will hold pointer to a
 *                    configuration unit name
 * @fit_uname_kernel: double pointer to a char, will hold pointer to a subimage
 *                    name
 *
 * genimg_get_kernel_addr_fit get the real kernel start address from a string
 * which is normally the first argv of bootm/bootz
 *
 * returns:
 *     kernel start address
 */
ulong genimg_get_kernel_addr_fit(char * const img_addr,
                                 const char **fit_uname_config,
                                 const char **fit_uname_kernel)
{
        ulong kernel_addr;

        /* find out kernel image address */
        if (!img_addr) {
                kernel_addr = image_load_addr;
                debug("*  kernel: default image load address = 0x%08lx\n",
                      image_load_addr);
        } else if (CONFIG_IS_ENABLED(FIT) &&
                   fit_parse_conf(img_addr, image_load_addr, &kernel_addr,
                                  fit_uname_config)) {
                debug("*  kernel: config '%s' from image at 0x%08lx\n",
                      *fit_uname_config, kernel_addr);
        } else if (CONFIG_IS_ENABLED(FIT) &&
                   fit_parse_subimage(img_addr, image_load_addr, &kernel_addr,
                                      fit_uname_kernel)) {
                debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
                      *fit_uname_kernel, kernel_addr);
        } else {
                kernel_addr = hextoul(img_addr, NULL);
                debug("*  kernel: cmdline image address = 0x%08lx\n",
                      kernel_addr);
        }

        return kernel_addr;
}

/**
 * genimg_get_kernel_addr() is the simple version of
 * genimg_get_kernel_addr_fit(). It ignores those return FIT strings
 */
ulong genimg_get_kernel_addr(char * const img_addr)
{
        const char *fit_uname_config = NULL;
        const char *fit_uname_kernel = NULL;

        return genimg_get_kernel_addr_fit(img_addr, &fit_uname_config,
                                          &fit_uname_kernel);
}

/**
 * genimg_get_format - get image format type
 * @img_addr: image start address
 *
 * genimg_get_format() checks whether provided address points to a valid
 * legacy or FIT image.
 *
 * New uImage format and FDT blob are based on a libfdt. FDT blob
 * may be passed directly or embedded in a FIT image. In both situations
 * genimg_get_format() must be able to dectect libfdt header.
 *
 * returns:
 *     image format type or IMAGE_FORMAT_INVALID if no image is present
 */
int genimg_get_format(const void *img_addr)
{
        if (CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)) {
                const image_header_t *hdr;

                hdr = (const image_header_t *)img_addr;
                if (image_check_magic(hdr))
                        return IMAGE_FORMAT_LEGACY;
        }
        if (CONFIG_IS_ENABLED(FIT) || CONFIG_IS_ENABLED(OF_LIBFDT)) {
                if (!fdt_check_header(img_addr))
                        return IMAGE_FORMAT_FIT;
        }
        if (IS_ENABLED(CONFIG_ANDROID_BOOT_IMAGE) &&
            !android_image_check_header(img_addr))
                return IMAGE_FORMAT_ANDROID;

        return IMAGE_FORMAT_INVALID;
}

/**
 * fit_has_config - check if there is a valid FIT configuration
 * @images: pointer to the bootm command headers structure
 *
 * fit_has_config() checks if there is a FIT configuration in use
 * (if FTI support is present).
 *
 * returns:
 *     0, no FIT support or no configuration found
 *     1, configuration found
 */
int genimg_has_config(bootm_headers_t *images)
{
        if (CONFIG_IS_ENABLED(FIT) && images->fit_uname_cfg)
                return 1;

        return 0;
}

/**
 * select_ramdisk() - Select and locate the ramdisk to use
 *
 * @images: pointer to the bootm images structure
 * @select: name of ramdisk to select, or NULL for any
 * @arch: expected ramdisk architecture
 * @rd_datap: pointer to a ulong variable, will hold ramdisk pointer
 * @rd_lenp: pointer to a ulong variable, will hold ramdisk length
 * Return: 0 if OK, -ENOPKG if no ramdisk (but an error should not be reported),
 *      other -ve value on other error
 */
static int select_ramdisk(bootm_headers_t *images, const char *select, u8 arch,
                          ulong *rd_datap, ulong *rd_lenp)
{
        ulong rd_addr;
        char *buf;

#if CONFIG_IS_ENABLED(FIT)
                const char *fit_uname_config = images->fit_uname_cfg;
                const char *fit_uname_ramdisk = NULL;
                int rd_noffset;

                if (select) {
                        ulong default_addr;
                        /*
                         * If the init ramdisk comes from the FIT image and
                         * the FIT image address is omitted in the command
                         * line argument, try to use os FIT image address or
                         * default load address.
                         */
                        if (images->fit_uname_os)
                                default_addr = (ulong)images->fit_hdr_os;
                        else
                                default_addr = image_load_addr;

                        if (fit_parse_conf(select, default_addr,
                                           &rd_addr, &fit_uname_config)) {
                                debug("*  ramdisk: config '%s' from image at 0x%08lx\n",
                                      fit_uname_config, rd_addr);
                        } else if (fit_parse_subimage(select, default_addr,
                                                      &rd_addr,
                                                      &fit_uname_ramdisk)) {
                                debug("*  ramdisk: subimage '%s' from image at 0x%08lx\n",
                                      fit_uname_ramdisk, rd_addr);
                        } else
#endif
                        {
                                rd_addr = hextoul(select, NULL);
                                debug("*  ramdisk: cmdline image address = 0x%08lx\n",
                                      rd_addr);
                        }
#if CONFIG_IS_ENABLED(FIT)
                } else {
                        /* use FIT configuration provided in first bootm
                         * command argument. If the property is not defined,
                         * quit silently (with -ENOPKG)
                         */
                        rd_addr = map_to_sysmem(images->fit_hdr_os);
                        rd_noffset = fit_get_node_from_config(images,
                                                              FIT_RAMDISK_PROP,
                                                              rd_addr);
                        if (rd_noffset == -ENOENT)
                                return -ENOPKG;
                        else if (rd_noffset < 0)
                                return rd_noffset;
                }
#endif

                /*
                 * Check if there is an initrd image at the
                 * address provided in the second bootm argument
                 * check image type, for FIT images get FIT node.
                 */
                buf = map_sysmem(rd_addr, 0);
                switch (genimg_get_format(buf)) {
#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
                case IMAGE_FORMAT_LEGACY: {
                        const image_header_t *rd_hdr;

                        printf("## Loading init Ramdisk from Legacy Image at %08lx ...\n",
                               rd_addr);

                        bootstage_mark(BOOTSTAGE_ID_CHECK_RAMDISK);
                        rd_hdr = image_get_ramdisk(rd_addr, arch,
                                                   images->verify);

                        if (!rd_hdr)
                                return -ENOENT;

                        *rd_datap = image_get_data(rd_hdr);
                        *rd_lenp = image_get_data_size(rd_hdr);
                        break;
                }
#endif
#if CONFIG_IS_ENABLED(FIT)
                case IMAGE_FORMAT_FIT:
                        rd_noffset = fit_image_load(images,
                                                    rd_addr, &fit_uname_ramdisk,
                                                    &fit_uname_config, arch,
                                                    IH_TYPE_RAMDISK,
                                                    BOOTSTAGE_ID_FIT_RD_START,
                                                    FIT_LOAD_OPTIONAL_NON_ZERO,
                                                    rd_datap, rd_lenp);
                        if (rd_noffset < 0)
                                return rd_noffset;

                        images->fit_hdr_rd = map_sysmem(rd_addr, 0);
                        images->fit_uname_rd = fit_uname_ramdisk;
                        images->fit_noffset_rd = rd_noffset;
                        break;
#endif
#ifdef CONFIG_ANDROID_BOOT_IMAGE
                case IMAGE_FORMAT_ANDROID:
                        android_image_get_ramdisk((void *)images->os.start,
                                                  rd_datap, rd_lenp);
                        break;
#endif
                default:
                        if (IS_ENABLED(CONFIG_SUPPORT_RAW_INITRD)) {
                                char *end = NULL;

                                if (select)
                                        end = strchr(select, ':');
                                if (end) {
                                        *rd_lenp = hextoul(++end, NULL);
                                        *rd_datap = rd_addr;
                                        break;
                                }
                        }
                        puts("Wrong Ramdisk Image Format\n");
                        return -EINVAL;
                }

        return 0;
}

/**
 * boot_get_ramdisk - main ramdisk handling routine
 * @argc: command argument count
 * @argv: command argument list
 * @images: pointer to the bootm images structure
 * @arch: expected ramdisk architecture
 * @rd_start: pointer to a ulong variable, will hold ramdisk start address
 * @rd_end: pointer to a ulong variable, will hold ramdisk end
 *
 * boot_get_ramdisk() is responsible for finding a valid ramdisk image.
 * Currently supported are the following ramdisk sources:
 *      - multicomponent kernel/ramdisk image,
 *      - commandline provided address of decicated ramdisk image.
 *
 * returns:
 *     0, if ramdisk image was found and valid, or skiped
 *     rd_start and rd_end are set to ramdisk start/end addresses if
 *     ramdisk image is found and valid
 *
 *     1, if ramdisk image is found but corrupted, or invalid
 *     rd_start and rd_end are set to 0 if no ramdisk exists
 */
int boot_get_ramdisk(int argc, char *const argv[], bootm_headers_t *images,
                     u8 arch, ulong *rd_start, ulong *rd_end)
{
        ulong rd_data, rd_len;
        const char *select = NULL;

        *rd_start = 0;
        *rd_end = 0;

        if (IS_ENABLED(CONFIG_ANDROID_BOOT_IMAGE)) {
                char *buf;

                /* Look for an Android boot image */
                buf = map_sysmem(images->os.start, 0);
                if (buf && genimg_get_format(buf) == IMAGE_FORMAT_ANDROID)
                        select = (argc == 0) ? env_get("loadaddr") : argv[0];
        }

        if (argc >= 2)
                select = argv[1];

        /*
         * Look for a '-' which indicates to ignore the
         * ramdisk argument
         */
        if (select && strcmp(select, "-") ==  0) {
                debug("## Skipping init Ramdisk\n");
                rd_len = 0;
                rd_data = 0;
        } else if (select || genimg_has_config(images)) {
                int ret;

                ret = select_ramdisk(images, select, arch, &rd_data, &rd_len);
                if (ret == -ENOPKG)
                        return 0;
                else if (ret)
                        return ret;
        } else if (images->legacy_hdr_valid &&
                        image_check_type(&images->legacy_hdr_os_copy,
                                         IH_TYPE_MULTI)) {
                /*
                 * Now check if we have a legacy mult-component image,
                 * get second entry data start address and len.
                 */
                bootstage_mark(BOOTSTAGE_ID_RAMDISK);
                printf("## Loading init Ramdisk from multi component Legacy Image at %08lx ...\n",
                       (ulong)images->legacy_hdr_os);

                image_multi_getimg(images->legacy_hdr_os, 1, &rd_data, &rd_len);
        } else {
                /*
                 * no initrd image
                 */
                bootstage_mark(BOOTSTAGE_ID_NO_RAMDISK);
                rd_len = 0;
                rd_data = 0;
        }

        if (!rd_data) {
                debug("## No init Ramdisk\n");
        } else {
                *rd_start = rd_data;
                *rd_end = rd_data + rd_len;
        }
        debug("   ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n",
              *rd_start, *rd_end);

        return 0;
}

/**
 * boot_ramdisk_high - relocate init ramdisk
 * @lmb: pointer to lmb handle, will be used for memory mgmt
 * @rd_data: ramdisk data start address
 * @rd_len: ramdisk data length
 * @initrd_start: pointer to a ulong variable, will hold final init ramdisk
 *      start address (after possible relocation)
 * @initrd_end: pointer to a ulong variable, will hold final init ramdisk
 *      end address (after possible relocation)
 *
 * boot_ramdisk_high() takes a relocation hint from "initrd_high" environment
 * variable and if requested ramdisk data is moved to a specified location.
 *
 * Initrd_start and initrd_end are set to final (after relocation) ramdisk
 * start/end addresses if ramdisk image start and len were provided,
 * otherwise set initrd_start and initrd_end set to zeros.
 *
 * returns:
 *      0 - success
 *     -1 - failure
 */
int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
                      ulong *initrd_start, ulong *initrd_end)
{
        char    *s;
        ulong   initrd_high;
        int     initrd_copy_to_ram = 1;

        s = env_get("initrd_high");
        if (s) {
                /* a value of "no" or a similar string will act like 0,
                 * turning the "load high" feature off. This is intentional.
                 */
                initrd_high = hextoul(s, NULL);
                if (initrd_high == ~0)
                        initrd_copy_to_ram = 0;
        } else {
                initrd_high = env_get_bootm_mapsize() + env_get_bootm_low();
        }

        debug("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
              initrd_high, initrd_copy_to_ram);

        if (rd_data) {
                if (!initrd_copy_to_ram) {      /* zero-copy ramdisk support */
                        debug("   in-place initrd\n");
                        *initrd_start = rd_data;
                        *initrd_end = rd_data + rd_len;
                        lmb_reserve(lmb, rd_data, rd_len);
                } else {
                        if (initrd_high)
                                *initrd_start = (ulong)lmb_alloc_base(lmb,
                                                rd_len, 0x1000, initrd_high);
                        else
                                *initrd_start = (ulong)lmb_alloc(lmb, rd_len,
                                                                 0x1000);

                        if (*initrd_start == 0) {
                                puts("ramdisk - allocation error\n");
                                goto error;
                        }
                        bootstage_mark(BOOTSTAGE_ID_COPY_RAMDISK);

                        *initrd_end = *initrd_start + rd_len;
                        printf("   Loading Ramdisk to %08lx, end %08lx ... ",
                               *initrd_start, *initrd_end);

                        memmove_wd((void *)*initrd_start,
                                   (void *)rd_data, rd_len, CHUNKSZ);

                        /*
                         * Ensure the image is flushed to memory to handle
                         * AMP boot scenarios in which we might not be
                         * HW cache coherent
                         */
                        if (IS_ENABLED(CONFIG_MP)) {
                                flush_cache((unsigned long)*initrd_start,
                                            ALIGN(rd_len, ARCH_DMA_MINALIGN));
                        }
                        puts("OK\n");
                }
        } else {
                *initrd_start = 0;
                *initrd_end = 0;
        }
        debug("   ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
              *initrd_start, *initrd_end);

        return 0;

error:
        return -1;
}

int boot_get_setup(bootm_headers_t *images, u8 arch,
                   ulong *setup_start, ulong *setup_len)
{
        if (!CONFIG_IS_ENABLED(FIT))
                return -ENOENT;

        return boot_get_setup_fit(images, arch, setup_start, setup_len);
}

int boot_get_fpga(int argc, char *const argv[], bootm_headers_t *images,
                  u8 arch, const ulong *ld_start, ulong * const ld_len)
{
        ulong tmp_img_addr, img_data, img_len;
        void *buf;
        int conf_noffset;
        int fit_img_result;
        const char *uname, *name;
        int err;
        int devnum = 0; /* TODO support multi fpga platforms */

        if (!IS_ENABLED(CONFIG_FPGA))
                return -ENOSYS;

        /* Check to see if the images struct has a FIT configuration */
        if (!genimg_has_config(images)) {
                debug("## FIT configuration was not specified\n");
                return 0;
        }

        /*
         * Obtain the os FIT header from the images struct
         */
        tmp_img_addr = map_to_sysmem(images->fit_hdr_os);
        buf = map_sysmem(tmp_img_addr, 0);
        /*
         * Check image type. For FIT images get FIT node
         * and attempt to locate a generic binary.
         */
        switch (genimg_get_format(buf)) {
        case IMAGE_FORMAT_FIT:
                conf_noffset = fit_conf_get_node(buf, images->fit_uname_cfg);

                uname = fdt_stringlist_get(buf, conf_noffset, FIT_FPGA_PROP, 0,
                                           NULL);
                if (!uname) {
                        debug("## FPGA image is not specified\n");
                        return 0;
                }
                fit_img_result = fit_image_load(images,
                                                tmp_img_addr,
                                                (const char **)&uname,
                                                &images->fit_uname_cfg,
                                                arch,
                                                IH_TYPE_FPGA,
                                                BOOTSTAGE_ID_FPGA_INIT,
                                                FIT_LOAD_OPTIONAL_NON_ZERO,
                                                &img_data, &img_len);

                debug("FPGA image (%s) loaded to 0x%lx/size 0x%lx\n",
                      uname, img_data, img_len);

                if (fit_img_result < 0) {
                        /* Something went wrong! */
                        return fit_img_result;
                }

                if (!fpga_is_partial_data(devnum, img_len)) {
                        name = "full";
                        err = fpga_loadbitstream(devnum, (char *)img_data,
                                                 img_len, BIT_FULL);
                        if (err)
                                err = fpga_load(devnum, (const void *)img_data,
                                                img_len, BIT_FULL);
                } else {
                        name = "partial";
                        err = fpga_loadbitstream(devnum, (char *)img_data,
                                                 img_len, BIT_PARTIAL);
                        if (err)
                                err = fpga_load(devnum, (const void *)img_data,
                                                img_len, BIT_PARTIAL);
                }

                if (err)
                        return err;

                printf("   Programming %s bitstream... OK\n", name);
                break;
        default:
                printf("The given image format is not supported (corrupt?)\n");
                return 1;
        }

        return 0;
}

static void fit_loadable_process(u8 img_type,
                                 ulong img_data,
                                 ulong img_len)
{
        int i;
        const unsigned int count =
                        ll_entry_count(struct fit_loadable_tbl, fit_loadable);
        struct fit_loadable_tbl *fit_loadable_handler =
                        ll_entry_start(struct fit_loadable_tbl, fit_loadable);
        /* For each loadable handler */
        for (i = 0; i < count; i++, fit_loadable_handler++)
                /* matching this type */
                if (fit_loadable_handler->type == img_type)
                        /* call that handler with this image data */
                        fit_loadable_handler->handler(img_data, img_len);
}

int boot_get_loadable(int argc, char *const argv[], bootm_headers_t *images,
                      u8 arch, const ulong *ld_start, ulong * const ld_len)
{
        /*
         * These variables are used to hold the current image location
         * in system memory.
         */
        ulong tmp_img_addr;
        /*
         * These two variables are requirements for fit_image_load, but
         * their values are not used
         */
        ulong img_data, img_len;
        void *buf;
        int loadables_index;
        int conf_noffset;
        int fit_img_result;
        const char *uname;
        u8 img_type;

        /* Check to see if the images struct has a FIT configuration */
        if (!genimg_has_config(images)) {
                debug("## FIT configuration was not specified\n");
                return 0;
        }

        /*
         * Obtain the os FIT header from the images struct
         */
        tmp_img_addr = map_to_sysmem(images->fit_hdr_os);
        buf = map_sysmem(tmp_img_addr, 0);
        /*
         * Check image type. For FIT images get FIT node
         * and attempt to locate a generic binary.
         */
        switch (genimg_get_format(buf)) {
        case IMAGE_FORMAT_FIT:
                conf_noffset = fit_conf_get_node(buf, images->fit_uname_cfg);

                for (loadables_index = 0;
                     uname = fdt_stringlist_get(buf, conf_noffset,
                                                FIT_LOADABLE_PROP,
                                                loadables_index, NULL), uname;
                     loadables_index++) {
                        fit_img_result = fit_image_load(images, tmp_img_addr,
                                                        &uname,
                                                        &images->fit_uname_cfg,
                                                        arch, IH_TYPE_LOADABLE,
                                                        BOOTSTAGE_ID_FIT_LOADABLE_START,
                                                        FIT_LOAD_OPTIONAL_NON_ZERO,
                                                        &img_data, &img_len);
                        if (fit_img_result < 0) {
                                /* Something went wrong! */
                                return fit_img_result;
                        }

                        fit_img_result = fit_image_get_node(buf, uname);
                        if (fit_img_result < 0) {
                                /* Something went wrong! */
                                return fit_img_result;
                        }
                        fit_img_result = fit_image_get_type(buf,
                                                            fit_img_result,
                                                            &img_type);
                        if (fit_img_result < 0) {
                                /* Something went wrong! */
                                return fit_img_result;
                        }

                        fit_loadable_process(img_type, img_data, img_len);
                }
                break;
        default:
                printf("The given image format is not supported (corrupt?)\n");
                return 1;
        }

        return 0;
}

/**
 * boot_get_cmdline - allocate and initialize kernel cmdline
 * @lmb: pointer to lmb handle, will be used for memory mgmt
 * @cmd_start: pointer to a ulong variable, will hold cmdline start
 * @cmd_end: pointer to a ulong variable, will hold cmdline end
 *
 * boot_get_cmdline() allocates space for kernel command line below
 * BOOTMAPSZ + env_get_bootm_low() address. If "bootargs" U-Boot environment
 * variable is present its contents is copied to allocated kernel
 * command line.
 *
 * returns:
 *      0 - success
 *     -1 - failure
 */
int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end)
{
        char *cmdline;
        char *s;

        cmdline = (char *)(ulong)lmb_alloc_base(lmb, CONFIG_SYS_BARGSIZE, 0xf,
                                env_get_bootm_mapsize() + env_get_bootm_low());
        if (!cmdline)
                return -1;

        s = env_get("bootargs");
        if (!s)
                s = "";

        strcpy(cmdline, s);

        *cmd_start = (ulong)cmdline;
        *cmd_end = *cmd_start + strlen(cmdline);

        debug("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end);

        return 0;
}

/**
 * boot_get_kbd - allocate and initialize kernel copy of board info
 * @lmb: pointer to lmb handle, will be used for memory mgmt
 * @kbd: double pointer to board info data
 *
 * boot_get_kbd() allocates space for kernel copy of board info data below
 * BOOTMAPSZ + env_get_bootm_low() address and kernel board info is initialized
 * with the current u-boot board info data.
 *
 * returns:
 *      0 - success
 *     -1 - failure
 */
int boot_get_kbd(struct lmb *lmb, struct bd_info **kbd)
{
        *kbd = (struct bd_info *)(ulong)lmb_alloc_base(lmb,
                                                       sizeof(struct bd_info),
                                                       0xf,
                                                       env_get_bootm_mapsize() +
                                                       env_get_bootm_low());
        if (!*kbd)
                return -1;

        **kbd = *gd->bd;

        debug("## kernel board info at 0x%08lx\n", (ulong)*kbd);

#if defined(DEBUG)
        if (IS_ENABLED(CONFIG_CMD_BDI))
                do_bdinfo(NULL, 0, 0, NULL);
#endif

        return 0;
}

int image_setup_linux(bootm_headers_t *images)
{
        ulong of_size = images->ft_len;
        char **of_flat_tree = &images->ft_addr;
        struct lmb *lmb = &images->lmb;
        int ret;

        if (CONFIG_IS_ENABLED(OF_LIBFDT))
                boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);

        if (IS_ENABLED(CONFIG_SYS_BOOT_GET_CMDLINE)) {
                ret = boot_get_cmdline(lmb, &images->cmdline_start,
                                       &images->cmdline_end);
                if (ret) {
                        puts("ERROR with allocation of cmdline\n");
                        return ret;
                }
        }

        if (CONFIG_IS_ENABLED(OF_LIBFDT)) {
                ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
                if (ret)
                        return ret;
        }

        if (CONFIG_IS_ENABLED(OF_LIBFDT) && of_size) {
                ret = image_setup_libfdt(images, *of_flat_tree, of_size, lmb);
                if (ret)
                        return ret;
        }

        return 0;
}

void genimg_print_size(uint32_t size)
{
        printf("%d Bytes = ", size);
        print_size(size, "\n");
}

void genimg_print_time(time_t timestamp)
{
        struct rtc_time tm;

        rtc_to_tm(timestamp, &tm);
        printf("%4d-%02d-%02d  %2d:%02d:%02d UTC\n",
               tm.tm_year, tm.tm_mon, tm.tm_mday,
               tm.tm_hour, tm.tm_min, tm.tm_sec);
}