src/bsp/lk/app/blxboot/blxboot_plat.c

/*
 * Copyright (c) 2019 MediaTek Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files
 * (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <compiler.h>
#include <err.h>
#include <stddef.h>

#include "blxboot_plat.h"

/* scpsys related weak impl. */
__WEAK void plat_start_scpsys(void)
{
}

/* platform fixup related weak impl. */
__WEAK int plat_fixup_init(void)
{
    return NO_ERROR;
}

__WEAK void plat_fixup_append(char *append_str)
{
}

__WEAK void plat_fixup_hook(uint32_t boot_mode, const char *ab_suffix,
                            void *dtb, size_t dtb_size)
{
}

/* dtbo hardware information comprison function */
__WEAK int plat_compare_dtbo_hwinfo(uint32_t dtbo_version,
                                    struct dt_table_entry *entry)
{
    /* [TODO] For boot time consideration (decompression speed), compressed
     * overlays is not supported for now. */
    if ((dtbo_version > ANDROID_DTBO_V0) &&
            android_dtbo_tbl_entry_compress_algo(entry) != NO_COMPRESSION) {
        return -1;
    }

    return 0;
}