diff --git a/arch/xtensa/src/esp32s3/esp32s3_start.c b/arch/xtensa/src/esp32s3/esp32s3_start.c
index 1f7fb2e9311..eccd7dc2711 100644
--- a/arch/xtensa/src/esp32s3/esp32s3_start.c
+++ b/arch/xtensa/src/esp32s3/esp32s3_start.c
@@ -471,6 +471,10 @@ noinstrument_function void IRAM_ATTR __start(void)
 {
   const esp_app_desc_t *app_desc;
 
+  /* Move CPU0 exception vectors to IRAM */
+
+  __asm__ __volatile__ ("wsr %0, vecbase\n"::"r" (_init_start));
+
 #if defined(CONFIG_ESP32S3_APP_FORMAT_MCUBOOT) || \
     defined(CONFIG_ESPRESSIF_SIMPLE_BOOT)
   size_t partition_offset = PRIMARY_SLOT_OFFSET;
@@ -482,8 +486,6 @@ noinstrument_function void IRAM_ATTR __start(void)
   uint32_t app_drom_vaddr = (uint32_t)_image_drom_vma;
 
 #ifdef CONFIG_ESPRESSIF_SIMPLE_BOOT
-  __asm__ __volatile__ ("wsr %0, vecbase\n"::"r" (_init_start));
-
   if (bootloader_init() != 0)
     {
       ets_printf("Hardware init failed, aborting\n");
@@ -491,21 +493,6 @@ noinstrument_function void IRAM_ATTR __start(void)
     }
 #endif
 
-#ifndef CONFIG_ESPRESSIF_SIMPLE_BOOT
-  /* Move CPU0 exception vectors to IRAM */
-
-  __asm__ __volatile__ ("wsr %0, vecbase\n"::"r" (_init_start));
-
-  /* Clear .bss. We'll do this inline (vs. calling memset) just to be
-   * certain that there are no issues with the state of global variables.
-   */
-
-  for (uint32_t *dest = (uint32_t *)_sbss; dest < (uint32_t *)_ebss; )
-    {
-      *dest++ = 0;
-    }
-#endif
-
   if (map_rom_segments(app_drom_start, app_drom_vaddr, app_drom_size,
                        app_irom_start, app_irom_vaddr, app_irom_size) != 0)
     {
@@ -514,6 +501,17 @@ noinstrument_function void IRAM_ATTR __start(void)
     }
 #endif
 
+#ifndef CONFIG_ESPRESSIF_SIMPLE_BOOT
+  /* Clear .bss. We'll do this inline (vs. calling memset) just to be
+   * certain that there are no issues with the state of global variables.
+   */
+
+  for (uint32_t *dest = (uint32_t *)_sbss; dest < (uint32_t *)_ebss; )
+    {
+      *dest++ = 0;
+    }
+#endif
+
   app_desc = esp_app_get_description();
   if (app_desc->magic_word != ESP_APP_DESC_MAGIC_WORD)
     {
diff --git a/boards/xtensa/esp32/common/scripts/legacy_sections.ld b/boards/xtensa/esp32/common/scripts/legacy_sections.ld
index 1442432f664..af254b44b41 100644
--- a/boards/xtensa/esp32/common/scripts/legacy_sections.ld
+++ b/boards/xtensa/esp32/common/scripts/legacy_sections.ld
@@ -111,6 +111,22 @@ SECTIONS
     *libsched.a:sched_unlock.*(.literal .text .literal.* .text.*)
     *libsched.a:spinlock.*(.literal .text .literal.* .text.*)
 
+    *libarch.a:esp_spiflash.*(.literal .text .literal.* .text.*)
+    *libarch.a:esp_flash_api.*(.text .text.* .literal .literal.*)
+    *libarch.a:esp_flash_spi_init.*(.text .text.* .literal .literal.*)
+    *libarch.a:spi_flash_hal_iram.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_encrypt_hal_iram.*(.text .text.* .literal .literal.*)
+    *libarch.a:spi_flash_hal_gpspi.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_chip*.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_wrap.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_os_func_noos.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_os_func_app.*(.literal .literal.* .text .text.*)
+    *libarch.a:flash_brownout_hook.*(.literal .literal.* .text .text.*)
+    *libarch.a:esp_cache.*(.literal .literal.* .text .text.*)
+    *libarch.a:cache_hal_esp32.*(.literal .literal.* .text .text.*)
+    *libarch.a:cache_utils.*(.literal .literal.* .text .text.*)
+    *libarch.a:memspi_host_driver.*(.literal .literal.* .text .text.*)
+
     *(.wifirxiram .wifirxiram.*)
     *(.wifi0iram  .wifi0iram.*)
     *(.wifiorslpiram .wifiorslpiram.*)
@@ -242,6 +258,21 @@ SECTIONS
     *libc.a:lib_stackchk.*(.rodata  .rodata.*)
 #endif
     *libarch.a:esp32_spiflash.*(.rodata  .rodata.*)
+    *libarch.a:esp_flash_api.*(.rodata .rodata.*)
+    *libarch.a:esp_flash_spi_init.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_hal_iram.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_encrypt_hal_iram.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_hal_gpspi.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_chip*.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_wrap.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_os_func_noos.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_os_func_app.*(.rodata .rodata.*)
+    *libarch.a:flash_brownout_hook.*(.rodata .rodata.*)
+    *libarch.a:esp_cache.*(.rodata .rodata.*)
+    *libarch.a:cache_utils.*(.rodata .rodata.*)
+    *libarch.a:cache_hal_esp32.*(.rodata .rodata.*)
+    *libarch.a:memspi_host_driver.*(.rodata .rodata.*)
+
     *libarch.a:xtensa_context.*(.rodata  .rodata.*)
     *libarch.a:xtensa_copystate.*(.rodata  .rodata.*)
     *libarch.a:xtensa_cpupause.*(.rodata  .rodata.*)
diff --git a/boards/xtensa/esp32s3/common/scripts/legacy_sections.ld b/boards/xtensa/esp32s3/common/scripts/legacy_sections.ld
index 3bedd957fa0..5ed2b6532af 100644
--- a/boards/xtensa/esp32s3/common/scripts/legacy_sections.ld
+++ b/boards/xtensa/esp32s3/common/scripts/legacy_sections.ld
@@ -147,6 +147,19 @@ SECTIONS
 #endif
     *libarch.a:*cache_hal.*(.text .text.* .literal .literal.*)
     *libarch.a:*esp_rom_cache_esp32s2_esp32s3.*(.literal .text .literal.* .text.*)
+    *libarch.a:esp_cache.*(.literal .literal.* .text .text.*)
+    *libarch.a:cache_utils.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_hal_iram.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_hal_gpspi.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_encrypt_hal_iram.*(.text .text.* .literal .literal.*)
+    *libarch.a:spi_flash_chip*.*(.literal .literal.* .text .text.*)
+    *libarch.a:spi_flash_wrap.*(.literal .literal.* .text .text.*)
+    *libarch.a:esp_spiflash.*(.literal .text .literal.* .text.*)
+    *libarch.a:esp_flash_spi_init.*(.text .text.* .literal .literal.*)
+    *libarch.a:esp_flash_api.*(.text .text.* .literal .literal.*)
+    *libarch.a:spi_flash_os_func*.*(.literal .literal.* .text .text.*)
+    *libarch.a:*flash_brownout_hook.*(.literal .literal.* .text .text.*)
+    *libarch.a:memspi_host_driver.*(.literal .literal.* .text .text.*)
 
     *(.wifirxiram .wifirxiram.*)
     *(.wifi0iram  .wifi0iram.*)
@@ -238,6 +251,20 @@ SECTIONS
     *libc.a:lib_stackchk.*(.rodata  .rodata.*)
 #endif
 
+    *libarch.a:esp_cache.*(.rodata .rodata.*)
+    *libarch.a:cache_utils.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_hal_iram.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_hal_gpspi.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_encrypt_hal_iram.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_chip*.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_wrap.*(.rodata .rodata.*)
+    *libarch.a:esp_spiflash.*(.rodata .rodata.*)
+    *libarch.a:esp_flash_spi_init.*(.rodata .rodata.*)
+    *libarch.a:esp_flash_api.*(.rodata .rodata.*)
+    *libarch.a:spi_flash_os_func*.*(.rodata .rodata.*)
+    *libarch.a:flash_brownout_hook.*(.rodata .rodata.*)
+    *libarch.a:memspi_host_driver.*(.rodata .rodata.*)
+
     _edata = ABSOLUTE(.);
     . = ALIGN(4);
 
@@ -423,4 +450,23 @@ SECTIONS
     . = ALIGN (4);
     _srtcheap = ABSOLUTE(.);
   } > rtc_slow_seg
+
+  /* This section holds RTC data that should have fixed addresses.
+   * The data are not initialized at power-up and are retained during deep sleep.
+   */
+
+  .rtc_reserved (NOLOAD):
+  {
+    . = ALIGN(4);
+    _rtc_reserved_start = ABSOLUTE(.);
+
+    /* New data can only be added here to ensure existing data are not moved.
+     * Because data have adhered to the end of the segment and code is relied on it.
+     * >> put new data here <<
+     */
+
+    *(.rtc_timer_data_in_rtc_mem .rtc_timer_data_in_rtc_mem.*)
+    KEEP(*(.bootloader_data_rtc_mem .bootloader_data_rtc_mem.*))
+    _rtc_reserved_end = ABSOLUTE(.);
+  } > rtc_reserved_seg
 }