diff --git a/board/socionext/developerbox/Makefile b/board/socionext/developerbox/Makefile
index 4a46de995a..1acd067a7e 100644
--- a/board/socionext/developerbox/Makefile
+++ b/board/socionext/developerbox/Makefile
@@ -7,3 +7,4 @@
 #
 
 obj-y	:= developerbox.o
+obj-$(CONFIG_FWU_MDATA_MTD) += fwu_plat.o
diff --git a/board/socionext/developerbox/developerbox.c b/board/socionext/developerbox/developerbox.c
index 16e14d4f7f..ce2cccf4f0 100644
--- a/board/socionext/developerbox/developerbox.c
+++ b/board/socionext/developerbox/developerbox.c
@@ -20,6 +20,13 @@
 
 #if IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT)
 struct efi_fw_image fw_images[] = {
+#if CONFIG_IS_ENABLED(FWU_MULTI_BANK_UPDATE)
+	{
+		.image_type_id = DEVELOPERBOX_FIP_IMAGE_GUID,
+		.fw_name = u"DEVELOPERBOX-FIP",
+		.image_index = 1,
+	},
+#else
 	{
 		.image_type_id = DEVELOPERBOX_UBOOT_IMAGE_GUID,
 		.fw_name = u"DEVELOPERBOX-UBOOT",
@@ -35,6 +42,7 @@ struct efi_fw_image fw_images[] = {
 		.fw_name = u"DEVELOPERBOX-OPTEE",
 		.image_index = 3,
 	},
+#endif
 };
 
 struct efi_capsule_update_info update_info = {
diff --git a/board/socionext/developerbox/fwu_plat.c b/board/socionext/developerbox/fwu_plat.c
new file mode 100644
index 0000000000..29b258f86c
--- /dev/null
+++ b/board/socionext/developerbox/fwu_plat.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2023, Linaro Limited
+ */
+
+#include <efi_loader.h>
+#include <fwu.h>
+#include <fwu_mdata.h>
+#include <memalign.h>
+#include <mtd.h>
+
+#define DFU_ALT_BUF_LEN 256
+
+/* Generate dfu_alt_info from partitions */
+void set_dfu_alt_info(char *interface, char *devstr)
+{
+	int ret;
+	struct mtd_info *mtd;
+
+	ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
+	memset(buf, 0, sizeof(buf));
+
+	mtd_probe_devices();
+
+	mtd = get_mtd_device_nm("nor1");
+	if (IS_ERR_OR_NULL(mtd))
+		return;
+
+	ret = fwu_gen_alt_info_from_mtd(buf, DFU_ALT_BUF_LEN, mtd);
+	if (ret < 0) {
+		log_err("Error: Failed to generate dfu_alt_info. (%d)\n", ret);
+		return;
+	}
+	log_debug("Make dfu_alt_info: '%s'\n", buf);
+
+	env_set("dfu_alt_info", buf);
+}
+
+int fwu_plat_get_alt_num(struct udevice __always_unused *dev,
+			 efi_guid_t *image_id, u8 *alt_num)
+{
+	return fwu_mtd_get_alt_num(image_id, alt_num, "nor1");
+}
+
+void fwu_plat_get_bootidx(uint *boot_idx)
+{
+	int ret;
+	u32 active_idx;
+	u32 *bootidx = boot_idx;
+
+	ret = fwu_get_active_index(&active_idx);
+
+	if (ret < 0)
+		*bootidx = -1;
+
+	*bootidx = active_idx;
+}
diff --git a/configs/synquacer_developerbox_defconfig b/configs/synquacer_developerbox_defconfig
index 09e12b739b..d09684153a 100644
--- a/configs/synquacer_developerbox_defconfig
+++ b/configs/synquacer_developerbox_defconfig
@@ -97,3 +97,11 @@ CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
 CONFIG_EFI_CAPSULE_ON_DISK=y
 CONFIG_EFI_IGNORE_OSINDICATIONS=y
 CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y
+CONFIG_EFI_SECURE_BOOT=y
+CONFIG_FWU_MULTI_BANK_UPDATE=y
+CONFIG_FWU_MDATA=y
+CONFIG_FWU_MDATA_MTD=y
+CONFIG_FWU_NUM_BANKS=2
+CONFIG_FWU_NUM_IMAGES_PER_BANK=1
+CONFIG_CMD_FWU_METADATA=y
+CONFIG_TOOLS_MKFWUMDATA=y
diff --git a/doc/board/socionext/developerbox.rst b/doc/board/socionext/developerbox.rst
index 2d943c23be..908d3a7e6f 100644
--- a/doc/board/socionext/developerbox.rst
+++ b/doc/board/socionext/developerbox.rst
@@ -57,14 +57,20 @@ Installation
 
 You can install the SNI_NOR_UBOOT.fd via NOR flash writer.
 
-Flashing the U-Boot image on DeveloperBox requires a 96boards UART mezzanine or other mezzanine which can connect to LS-UART0 port.
-Connect USB cable from host to the LS-UART0 and set DSW2-7 to ON, and turn the board on again. The flash writer program will be started automatically; don’t forget to turn the DSW2-7 off again after flashing.
+Flashing the U-Boot image on DeveloperBox requires a 96boards UART mezzanine
+or other mezzanine which can connect to LS-UART0 port.
+Connect USB cable from host to the LS-UART0 and set DSW2-7 to ON, and turn the
+board on again. The flash writer program will be started automatically;
+don't forget to turn the DSW2-7 off again after flashing.
 
-*!!CAUTION!! If you failed to write the U-Boot image on wrong address, the board can be bricked. See below page if you need to recover the bricked board. See the following page for more detail*
+*!!CAUTION!! If you write the U-Boot image on wrong address, the board can
+be bricked. See below page if you need to recover the bricked board. See
+the following page for more detail*
 
 https://www.96boards.org/documentation/enterprise/developerbox/installation/board-recovery.md.html
 
-When the serial flasher is running correctly is will show the following boot messages shown via LS-UART0::
+When the serial flasher is running correctly is will show the following boot
+messages shown via LS-UART0::
 
 
   /*------------------------------------------*/
@@ -81,7 +87,144 @@ Once the flasher tool is running we are ready flash the UEFI image::
   flash rawwrite 200000 100000
   >> Send SPI_NOR_UBOOT.fd via XMODEM (Control-A S in minicom) <<
 
-*!!NOTE!! The flasher command parameter is different from the command for board recovery. U-Boot uses the offset 200000 (2-five-0, 2M in hex) and the size 100000 (1-five-0, 1M in hex).*
+*!!NOTE!! The flasher command parameter is different from the command for
+board recovery. U-Boot uses the offset 200000 (2-five-0, 2M in hex) and the
+size 100000 (1-five-0, 1M in hex).*
 
-After transferring the SPI_NOR_UBOOT.fd, turn off the DSW2-7 and reset the board.
+After transferring the SPI_NOR_UBOOT.fd, turn off the DSW2-7 and
+reset the board.
 
+
+Enable FWU Multi Bank Update
+============================
+
+DeveloperBox supports the FWU Multi Bank Update. You *MUST* update both
+*SCP firmware* and *TF-A* for this feature. This will change the layout and
+the boot process but you can switch back to the normal one by changing
+the DSW 1-4 off.
+
+Configure U-Boot
+----------------
+
+To enable the FWU Multi Bank Update on the DeveloperBox, you need to add
+following configurations to configs/synquacer_developerbox_defconfig ::
+
+ CONFIG_FWU_MULTI_BANK_UPDATE=y
+ CONFIG_FWU_MDATA=y
+ CONFIG_FWU_MDATA_MTD=y
+ CONFIG_FWU_NUM_BANKS=2
+ CONFIG_FWU_NUM_IMAGES_PER_BANK=1
+ CONFIG_CMD_FWU_METADATA=y
+
+And build it::
+
+  cd u-boot/
+  export ARCH=arm64
+  export CROSS_COMPILE=aarch64-linux-gnu-
+  make synquacer_developerbox_defconfig
+  make -j `noproc`
+  cd ../
+
+By default, the CONFIG_FWU_NUM_BANKS and CONFIG_FWU_NUM_IMAGES_PER_BANKS are
+set to 2 and 1 respectively. This uses FIP (Firmware Image Package) type image
+which contains TF-A, U-Boot and OP-TEE (the OP-TEE is optional.)
+You can use fiptool to compose the FIP image from those firmware images.
+
+Rebuild SCP firmware
+--------------------
+
+Rebuild SCP firmware which supports FWU Multi Bank Update as below::
+
+  cd SCP-firmware/
+  OUT=./build/product/synquacer
+  ROMFW_FILE=$OUT/scp_romfw/$SCP_BUILD_MODE/bin/scp_romfw.bin
+  RAMFW_FILE=$OUT/scp_ramfw/$SCP_BUILD_MODE/bin/scp_ramfw.bin
+  ROMRAMFW_FILE=scp_romramfw_release.bin
+
+  make CC=arm-none-eabi-gcc PRODUCT=synquacer MODE=release
+  tr "\000" "\377" < /dev/zero | dd of=${ROMRAMFW_FILE} bs=1 count=196608
+  dd if=${ROMFW_FILE} of=${ROMRAMFW_FILE} bs=1 conv=notrunc seek=0
+  dd if=${RAMFW_FILE} of=${ROMRAMFW_FILE} bs=1 seek=65536
+  cd ../
+
+And you can get the `scp_romramfw_release.bin` file
+
+Rebuild OPTEE firmware
+----------------------
+
+Rebuild OPTEE to use in new-layout fip as below::
+
+  cd optee_os/
+  make -j`nproc` PLATFORM=synquacer ARCH=arm \
+    CROSS_COMPILE64=aarch64-linux-gnu- CFG_ARM64_core=y \
+    CFG_CRYPTO_WITH_CE=y CFG_CORE_HEAP_SIZE=524288 CFG_CORE_DYN_SHM=y \
+    CFG_CORE_ARM64_PA_BITS=48 CFG_TEE_CORE_LOG_LEVEL=1 CFG_TEE_TA_LOG_LEVEL=1
+  cp out/arm-plat-synquacer/core/tee-pager_v2.bin ../arm-trusted-firmware/
+
+The produced `tee-pager_v2.bin` is to be used while building TF-A next.
+
+
+Rebuild TF-A and FIP
+--------------------
+
+Rebuild TF-A which supports FWU Multi Bank Update as below::
+
+  cd arm-trusted-firmware/
+  make CROSS_COMPILE=aarch64-linux-gnu- -j`nproc` PLAT=synquacer \
+     TRUSTED_BOARD_BOOT=1 SPD=opteed SQ_RESET_TO_BL2=1 GENERATE_COT=1 \
+     MBEDTLS_DIR=../mbedtls BL32=tee-pager_v2.bin \
+     BL33=../u-boot/u-boot.bin all fip fiptool
+
+And make a FIP image.::
+
+  cp build/synquacer/release/fip.bin SPI_NOR_NEWFIP.fd
+  tools/fiptool/fiptool update --tb-fw build/synquacer/release/bl2.bin SPI_NOR_NEWFIP.fd
+
+UUIDs for the FWU Multi Bank Update
+-----------------------------------
+
+FWU multi-bank update requires some UUIDs. The DeveloperBox platform uses
+following UUIDs.
+
+ - Location UUID for the FIP image: 17e86d77-41f9-4fd7-87ec-a55df9842de5
+ - Image type UUID for the FIP image: 10c36d7d-ca52-b843-b7b9-f9d6c501d108
+ - Image UUID for Bank0 : 5a66a702-99fd-4fef-a392-c26e261a2828
+ - Image UUID for Bank1 : a8f868a1-6e5c-4757-878d-ce63375ef2c0
+
+These UUIDs are used for making a FWU metadata image.
+
+u-boot$ ./tools/mkfwumdata -i 1 -b 2 \
+	17e86d77-41f9-4fd7-87ec-a55df9842de5,10c36d7d-ca52-b843-b7b9-f9d6c501d108,5a66a702-99fd-4fef-a392-c26e261a2828,a8f868a1-6e5c-4757-878d-ce63375ef2c0 \
+	../devbox-fwu-mdata.img
+
+Create Accept & Revert capsules
+
+u-boot$ ./tools/mkeficapsule -A -g 7d6dc310-52ca-43b8-b7b9-f9d6c501d108 NEWFIP_accept.Cap
+u-boot$ ./tools/mkeficapsule -R NEWFIP_revert.Cap
+
+Install via flash writer
+------------------------
+
+As explained in above section, the new FIP image and the FWU metadata image
+can be installed via NOR flash writer. Note that the installation offsets for
+the FWU multi bank update supported firmware.
+
+Once the flasher tool is running we are ready flash the images.::
+Write the FIP image to the Bank-0 & 1 at 6MB and 10MB offset.::
+
+  flash rawwrite 600000 180000
+  flash rawwrite a00000 180000
+  >> Send SPI_NOR_NEWFIP.fd via XMODEM (Control-A S in minicom) <<
+
+  flash rawwrite 500000 1000
+  flash rawwrite 530000 1000
+  >> Send devbox-fwu-mdata.img via XMODEM (Control-A S in minicom) <<
+
+And write the new SCP firmware.::
+
+  flash write cm3
+  >> Send scp_romramfw_release.bin via XMODEM (Control-A S in minicom) <<
+
+At last, turn on the DSW 3-4 on the board, and reboot.
+Note that if DSW 3-4 is turned off, the DeveloperBox will boot from
+the original EDK2 firmware (or non-FWU U-Boot if you already installed.)
diff --git a/include/configs/synquacer.h b/include/configs/synquacer.h
index 8f44c6f66a..cd7359c2f8 100644
--- a/include/configs/synquacer.h
+++ b/include/configs/synquacer.h
@@ -40,19 +40,29 @@
 
 /* Since U-Boot 64bit PCIe support is limited, disable 64bit MMIO support */
 
+#ifdef CONFIG_FWU_MULTI_BANK_UPDATE
+#define DEFAULT_DFU_ALT_INFO
+#else
 #define DEFAULT_DFU_ALT_INFO "dfu_alt_info="				\
 			"mtd nor1=u-boot.bin raw 200000 100000;"	\
 			"fip.bin raw 180000 78000;"			\
 			"optee.bin raw 500000 100000\0"
+#endif
 
 /* GUIDs for capsule updatable firmware images */
 #define DEVELOPERBOX_UBOOT_IMAGE_GUID \
 	EFI_GUID(0x53a92e83, 0x4ef4, 0x473a, 0x8b, 0x0d, \
 		 0xb5, 0xd8, 0xc7, 0xb2, 0xd6, 0x00)
 
+#ifdef CONFIG_FWU_MULTI_BANK_UPDATE
+#define DEVELOPERBOX_FIP_IMAGE_GUID \
+	EFI_GUID(0x7d6dc310, 0x52ca, 0x43b8, 0xb7, 0xb9, \
+		 0xf9, 0xd6, 0xc5, 0x01, 0xd1, 0x08)
+#else
 #define DEVELOPERBOX_FIP_IMAGE_GUID \
 	EFI_GUID(0x880866e9, 0x84ba, 0x4793, 0xa9, 0x08, \
 		 0x33, 0xe0, 0xb9, 0x16, 0xf3, 0x98)
+#endif
 
 #define DEVELOPERBOX_OPTEE_IMAGE_GUID \
 	EFI_GUID(0xc1b629f1, 0xce0e, 0x4894, 0x82, 0xbf, \
