diff --git a/plat/st/stm32mp1/bl2_plat_setup.c b/plat/st/stm32mp1/bl2_plat_setup.c
index 218f28d12..a52dd8a3f 100644
--- a/plat/st/stm32mp1/bl2_plat_setup.c
+++ b/plat/st/stm32mp1/bl2_plat_setup.c
@@ -352,6 +352,7 @@ int bl2_plat_handle_post_image_load(unsigned int image_id)
 	const struct dyn_cfg_dtb_info_t *config_info;
 	bl_mem_params_node_t *tos_fw_mem_params;
 	unsigned int i;
+	unsigned int idx;
 	unsigned long long ddr_top __unused;
 	const unsigned int image_ids[] = {
 		BL32_IMAGE_ID,
@@ -370,8 +371,14 @@ int bl2_plat_handle_post_image_load(unsigned int image_id)
 		set_config_info(STM32MP_FW_CONFIG_BASE, STM32MP_FW_CONFIG_MAX_SIZE, FW_CONFIG_ID);
 		fconf_populate("FW_CONFIG", STM32MP_FW_CONFIG_BASE);
 
+		idx = dyn_cfg_dtb_info_get_index(TOS_FW_CONFIG_ID);
+
 		/* Iterate through all the fw config IDs */
 		for (i = 0U; i < ARRAY_SIZE(image_ids); i++) {
+			if ((image_ids[i] == TOS_FW_CONFIG_ID) && (idx == FCONF_INVALID_IDX)) {
+				continue;
+			}
+
 			bl_mem_params = get_bl_mem_params_node(image_ids[i]);
 			assert(bl_mem_params != NULL);