boot: zephyr: add support for booting ARC processors

#endif /* CONFIG_SOC_FAMILY_ESPRESSIF_ESP32 */

}

#elif defined(CONFIG_ARC)

/*

 * ARC vector table has a pointer to the reset function as the first entry

 * in the vector table. Assume the vector table is at the start of the image,

 * and jump to reset

 */

static void do_boot(struct boot_rsp *rsp)

{

    struct arc_vector_table {

        void (*reset)(void); /* Reset vector */

    } *vt;

#if defined(MCUBOOT_RAM_LOAD)

    vt = (struct arc_vector_table *)(rsp->br_hdr->ih_load_addr + rsp->br_hdr->ih_hdr_size);

#else

    uintptr_t flash_base;

    int rc;

    rc = flash_device_base(rsp->br_flash_dev_id, &flash_base);

    assert(rc == 0);

    vt = (struct arc_vector_table *)(flash_base + rsp->br_image_off +

                     rsp->br_hdr->ih_hdr_size);

#endif

    /* Lock interrupts and dive into the entry point */

    irq_lock();

    vt->reset();

}

#else

/* Default: Assume entry point is at the very beginning of the image. Simply

 * lock interrupts and jump there. This is the right thing to do for X86 and