diff --git a/arch/arm/dts/synquacer-sc2a11-developerbox-u-boot.dtsi b/arch/arm/dts/synquacer-sc2a11-developerbox-u-boot.dtsi
index 095727e03c..d2078da8b8 100644
--- a/arch/arm/dts/synquacer-sc2a11-developerbox-u-boot.dtsi
+++ b/arch/arm/dts/synquacer-sc2a11-developerbox-u-boot.dtsi
@@ -23,7 +23,7 @@
 		active_clk_edges;
 		chipselect_num = <1>;
 
-		spi-flash@0 {
+		spi_flash: spi-flash@0 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			compatible = "jedec,spi-nor";
@@ -114,6 +114,11 @@
 		optee {
 			status = "okay";
 		};
+		fwu-mdata {
+			compatible = "u-boot,fwu-mdata-sf";
+			fwu-mdata-store = <&spi_flash>;
+			mdata-offsets = <0x500000 0x530000>;
+		};
 	};
 };
 
diff --git a/board/socionext/developerbox/Kconfig b/board/socionext/developerbox/Kconfig
index c181d26a44..4120098cab 100644
--- a/board/socionext/developerbox/Kconfig
+++ b/board/socionext/developerbox/Kconfig
@@ -32,4 +32,16 @@ config SYS_CONFIG_NAME
 	default "synquacer"
 
 endif
+
+config FWU_MULTI_BANK_UPDATE
+	select FWU_MDATA_SF
+	select DM_SPI_FLASH
+	select DM_FWU_MDATA
+
+config FWU_NUM_BANKS
+	default 6
+
+config FWU_NUM_IMAGES_PER_BANK
+	default 1
+
 endif
diff --git a/board/socionext/developerbox/Makefile b/board/socionext/developerbox/Makefile
index 4a46de995a..9b80ee38e7 100644
--- a/board/socionext/developerbox/Makefile
+++ b/board/socionext/developerbox/Makefile
@@ -7,3 +7,4 @@
 #
 
 obj-y	:= developerbox.o
+obj-$(CONFIG_FWU_MULTI_BANK_UPDATE) += fwu_plat.o
diff --git a/board/socionext/developerbox/fwu_plat.c b/board/socionext/developerbox/fwu_plat.c
new file mode 100644
index 0000000000..cbbbd58bc0
--- /dev/null
+++ b/board/socionext/developerbox/fwu_plat.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021, Linaro Limited
+ */
+
+#include <dfu.h>
+#include <efi_loader.h>
+#include <fwu.h>
+#include <fwu_mdata.h>
+#include <malloc.h>
+#include <memalign.h>
+#include <spi.h>
+#include <spi_flash.h>
+#include <flash.h>
+
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <u-boot/crc.h>
+
+/* SPI Flash accessors */
+static struct spi_flash *plat_spi_flash;
+
+static int __plat_sf_get_flash(void)
+{
+	struct udevice *new;
+	int	ret;
+
+	//TODO: define platform spi-flash somewhere.
+	ret = spi_flash_probe_bus_cs(CONFIG_SF_DEFAULT_BUS, CONFIG_SF_DEFAULT_CS,
+				     CONFIG_SF_DEFAULT_SPEED, CONFIG_SF_DEFAULT_MODE,
+				     &new);
+	if (ret)
+		return ret;
+
+	plat_spi_flash = dev_get_uclass_priv(new);
+	return 0;
+}
+
+static int plat_sf_get_flash(struct spi_flash **flash)
+{
+	int ret = 0;
+
+	if (!plat_spi_flash)
+		ret = __plat_sf_get_flash();
+
+	*flash = plat_spi_flash;
+
+	return ret;
+}
+
+static int sf_load_data(u32 offs, u32 size, void **data)
+{
+	struct spi_flash *flash;
+	int ret;
+
+	ret = plat_sf_get_flash(&flash);
+	if (ret < 0)
+		return ret;
+
+	*data = memalign(ARCH_DMA_MINALIGN, size);
+	if (!*data)
+		return -ENOMEM;
+
+	ret = spi_flash_read(flash, offs, size, *data);
+	if (ret < 0) {
+		free(*data);
+		*data = NULL;
+	}
+
+	return ret;
+}
+
+/* Platform dependent GUIDs */
+
+/* The GUID for the SNI FIP image type GUID */
+#define FWU_IMAGE_TYPE_DEVBOX_FIP_GUID \
+	EFI_GUID(0x7d6dc310, 0x52ca, 0x43b8, 0xb7, 0xb9, \
+		 0xf9, 0xd6, 0xc5, 0x01, 0xd1, 0x08)
+
+#define PLAT_METADATA_OFFSET	0x510000
+#define PLAT_METADATA_SIZE	(sizeof(struct devbox_metadata))
+
+struct __packed devbox_metadata {
+	u32 boot_index;
+	u32 boot_count;
+} *devbox_plat_metadata;
+
+static const efi_guid_t devbox_fip_image_type_guid = FWU_IMAGE_TYPE_DEVBOX_FIP_GUID;
+
+int fwu_plat_get_image_alt_num(efi_guid_t image_type_id, u32 update_bank,
+			       int *alt_no)
+{
+	/* DeveloperBox FWU Multi bank only supports FIP image. */
+	if (guidcmp(&image_type_id, &devbox_fip_image_type_guid))
+		return -EOPNOTSUPP;
+
+	/*
+	 * DeveloperBox FWU expects Bank:Image = 1:1, and the dfu_alt_info
+	 * only has the entries for banks. Thus the alt_no should be equal
+	 * to the update_bank.
+	 */
+	update_bank %= CONFIG_FWU_NUM_BANKS;
+	*alt_no = update_bank;
+
+	return 0;
+}
+
+efi_status_t fill_image_type_guid_array(const efi_guid_t __always_unused
+					*default_guid,
+					efi_guid_t **part_guid_arr)
+{
+	int i;
+	int alt_num;
+	struct dfu_entity *dfu;
+	efi_status_t ret = EFI_SUCCESS;
+
+	dfu_init_env_entities(NULL, NULL);
+
+	/* TODO: generate DFU and guid array from metadata. */
+	alt_num = 0;
+	list_for_each_entry(dfu, &dfu_list, list) {
+		++alt_num;
+	}
+
+	if (!alt_num) {
+		log_warning("Probably dfu_alt_info not defined\n");
+		ret = EFI_NOT_READY;
+		goto out;
+	}
+
+	*part_guid_arr = malloc(sizeof(efi_guid_t) * alt_num);
+	if (!*part_guid_arr) {
+		ret = EFI_OUT_OF_RESOURCES;
+		goto out;
+	}
+
+	for (i = 0; i < alt_num; i++)
+		guidcpy((*part_guid_arr + i), &devbox_fip_image_type_guid);
+out:
+	dfu_free_entities();
+
+	return ret;
+}
+
+/* TBD: add a usage counter for wear leveling */
+int fwu_plat_get_update_index(u32 *update_idx)
+{
+	int ret;
+	u32 active_idx;
+
+	ret = fwu_get_active_index(&active_idx);
+
+	if (ret < 0)
+		return -1;
+
+	*update_idx = (active_idx + 1) % CONFIG_FWU_NUM_BANKS;
+
+	return ret;
+}
+
+static int devbox_load_plat_metadata(void)
+{
+	if (devbox_plat_metadata)
+		return 0;
+
+	return sf_load_data(PLAT_METADATA_OFFSET, PLAT_METADATA_SIZE,
+			 (void **)&devbox_plat_metadata);
+}
+
+void fwu_plat_get_bootidx(void *boot_idx)
+{
+	u32 *bootidx = boot_idx;
+
+	if (devbox_load_plat_metadata() < 0)
+		*bootidx = 0;
+	else
+		*bootidx = devbox_plat_metadata->boot_index;
+}
diff --git a/include/configs/synquacer.h b/include/configs/synquacer.h
index 1b6e6d011e..f00c5bb8cc 100644
--- a/include/configs/synquacer.h
+++ b/include/configs/synquacer.h
@@ -51,8 +51,18 @@
 /* Since U-Boot 64bit PCIe support is limited, disable 64bit MMIO support */
 /* #define CONFIG_SYS_PCI_64BIT		1 */
 
+#ifdef CONFIG_FWU_MULTI_BANK_UPDATE
+#define DEFAULT_DFU_ALT_INFO "dfu_alt_info="				\
+				"mtd nor1=bank0 raw  600000 400000;"	\
+					 "bank1 raw  a00000 400000;"	\
+					 "bank2 raw  e00000 400000;"	\
+					 "bank3 raw 1200000 400000;"	\
+					 "bank4 raw 1600000 400000;"	\
+					 "bank5 raw 1a00000 400000\0"
+#else
 #define DEFAULT_DFU_ALT_INFO "dfu_alt_info="				\
 			"mtd nor1=fip.bin raw 600000 400000\0"
+#endif
 
 /* Distro boot settings */
 #ifndef CONFIG_SPL_BUILD
