diff --git a/boot/zephyr/boards/nucleo_h7s3l8.conf b/boot/zephyr/boards/nucleo_h7s3l8.conf
new file mode 100644
index 000000000..468f01659
--- /dev/null
+++ b/boot/zephyr/boards/nucleo_h7s3l8.conf
@@ -0,0 +1,3 @@
+CONFIG_BOOT_DIRECT_XIP=y
+CONFIG_STM32_MEMMAP=y
+CONFIG_BOOT_MAX_IMG_SECTORS_AUTO=n
diff --git a/boot/zephyr/boards/nucleo_h7s3l8.overlay b/boot/zephyr/boards/nucleo_h7s3l8.overlay
new file mode 100644
index 000000000..d374529d6
--- /dev/null
+++ b/boot/zephyr/boards/nucleo_h7s3l8.overlay
@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2024 STMicroelectronics
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &boot_partition;
+	};
+};