diff --git a/arch/arm/dts/synquacer-sc2a11-developerbox-u-boot.dtsi b/arch/arm/dts/synquacer-sc2a11-developerbox-u-boot.dtsi
index 095727e03c..ab4e3d1c2b 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";
@@ -84,11 +84,15 @@
 					label = "UBoot-Env";
 					reg = <0x580000 0x80000>;
 				};
-
+				/* FWU Multi bank update partitions */
 				partition@600000 {
-					label = "FIP";
+					label = "FIP-Bank0";
 					reg = <0x600000 0x400000>;
 				};
+				partition@a00000 {
+					label = "FIP-Bank1";
+					reg = <0xa00000 0x400000>;
+				};
 			};
 		};
 	};
@@ -114,6 +118,11 @@
 		optee {
 			status = "okay";
 		};
+		fwu-mdata {
+			compatible = "u-boot,fwu-mdata-mtd";
+			fwu-mdata-store = <&spi_flash>;
+			mdata-offsets = <0x500000 0x530000>;
+		};
 	};
 };
 
diff --git a/board/socionext/developerbox/Kconfig b/board/socionext/developerbox/Kconfig
index c181d26a44..7df6750baf 100644
--- a/board/socionext/developerbox/Kconfig
+++ b/board/socionext/developerbox/Kconfig
@@ -32,4 +32,17 @@ config SYS_CONFIG_NAME
 	default "synquacer"
 
 endif
+
+config FWU_MULTI_BANK_UPDATE
+	select FWU_MDATA_MTD
+	select DM_SPI_FLASH
+	select DM_FWU_MDATA
+	select BOARD_LATE_INIT
+
+config FWU_NUM_BANKS
+	default 2
+
+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..fd6d0e3659
--- /dev/null
+++ b/board/socionext/developerbox/fwu_plat.c
@@ -0,0 +1,207 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021, Linaro Limited
+ */
+
+#include <dfu.h>
+#include <efi_loader.h>
+#include <flash.h>
+#include <fwu.h>
+#include <fwu_mdata.h>
+#include <malloc.h>
+#include <memalign.h>
+#include <spi.h>
+#include <spi_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)
+{
+	/* TODO: define platform spi-flash somewhere. */
+	plat_spi_flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
+					 CONFIG_SF_DEFAULT_CS,
+					 CONFIG_SF_DEFAULT_SPEED,
+					 CONFIG_SF_DEFAULT_MODE);
+
+	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;
+}
+
+static int sf_save_data(u32 offs, u32 size, void *data)
+{
+	struct spi_flash *flash;
+	u32 sect_size, nsect;
+	void *buf;
+	int ret;
+
+	ret = plat_sf_get_flash(&flash);
+	if (ret < 0)
+		return ret;
+
+	sect_size = flash->mtd.erasesize;
+	nsect = DIV_ROUND_UP(size, sect_size);
+	ret = spi_flash_erase(flash, offs, nsect * sect_size);
+	if (ret < 0)
+		return ret;
+
+	buf = memalign(ARCH_DMA_MINALIGN, size);
+	if (!buf)
+		return -ENOMEM;
+	memcpy(buf, data, size);
+
+	ret = spi_flash_write(flash, offs, size, buf);
+
+	free(buf);
+
+	return ret;
+}
+
+#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;
+
+int fwu_plat_get_alt_num(struct udevice __always_unused *dev,
+			 efi_guid_t *image_id, int *alt_num)
+{
+	struct fwu_image_bank_info *bank;
+	struct fwu_mdata *mdata;
+	int i, ret;
+
+	ret = fwu_get_mdata(&mdata);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * 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 bank index number.
+	 */
+	ret = -ENOENT;
+	for (i = 0; i < CONFIG_FWU_NUM_BANKS; i++) {
+		bank = &mdata->img_entry[0].img_bank_info[i];
+		if (guidcmp(image_id, &bank->image_uuid) == 0) {
+			*alt_num = i;
+			ret = 0;
+			break;
+		}
+	}
+
+	free(mdata);
+
+	return ret;
+}
+
+/* This assumes that user doesn't change system default dfu_alt_info */
+efi_status_t fill_image_type_guid_array(const efi_guid_t __always_unused
+					*default_guid,
+					efi_guid_t **part_guid_arr)
+{
+	int i;
+
+	*part_guid_arr = malloc(sizeof(efi_guid_t) * DEFAULT_DFU_ALT_NUM);
+	if (!*part_guid_arr)
+		return EFI_OUT_OF_RESOURCES;
+
+	for (i = 0; i < DEFAULT_DFU_ALT_NUM; i++)
+		guidcpy((*part_guid_arr + i), &devbox_fip_image_type_guid);
+
+	return EFI_SUCCESS;
+}
+
+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 ret;
+
+	*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;
+}
+
+int board_late_init(void)
+{
+	int ret;
+
+	ret = devbox_load_plat_metadata();
+	if (ret < 0)
+		return ret;
+
+	if (devbox_plat_metadata->boot_count) {
+		/* We are in the platform trial boot. Finish it. */
+		devbox_plat_metadata->boot_count = 0;
+		ret = sf_save_data(PLAT_METADATA_OFFSET, PLAT_METADATA_SIZE,
+				   (void *)devbox_plat_metadata);
+		if (ret < 0)
+			return ret;
+
+		pr_debug("FWU: Finish platform trial boot safely.\n");
+	}
+
+	return 0;
+}
diff --git a/include/configs/synquacer.h b/include/configs/synquacer.h
index eafcc69e12..14eeb3f57e 100644
--- a/include/configs/synquacer.h
+++ b/include/configs/synquacer.h
@@ -46,8 +46,16 @@
 
 /* Since U-Boot 64bit PCIe support is limited, disable 64bit MMIO support */
 
+#ifdef CONFIG_FWU_MULTI_BANK_UPDATE
+#define DEFAULT_DFU_ALT_NUM  2
+#define DEFAULT_DFU_ALT_INFO "dfu_alt_info="				\
+				"mtd nor1=bank0 raw  600000 400000;"	\
+					 "bank1 raw  a00000 400000\0"
+#else
+#define DEFAULT_DFU_ALT_NUM  1
 #define DEFAULT_DFU_ALT_INFO "dfu_alt_info="				\
 			"mtd nor1=fip.bin raw 600000 400000\0"
+#endif
 
 /* GUIDs for capsule updatable firmware images */
 #define DEVELOPERBOX_FIP_IMAGE_GUID \
