diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-88d-10g-spim-nand.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-88d-10g-spim-nand.dts
new file mode 100644
index 0000000..8aa687e
--- /dev/null
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-88d-10g-spim-nand.dts
@@ -0,0 +1,532 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ * Author: Sam.Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7988.dtsi"
+
+/ {
+	model = "MediaTek MT7988A as 88D DSA 10G SPIM-NAND RFB";
+	compatible = "mediatek,mt7988a-88d-10g-spim-snand",
+		     /* Reserve this for DVFS if creating new dts */
+		     "mediatek,mt7988";
+
+	chosen {
+		bootargs = "console=ttyS0,115200n1 loglevel=8  \
+			    earlycon=uart8250,mmio32,0x11000000 \
+			    pci=pcie_bus_perf";
+	};
+
+	cpus {
+		/delete-node/ cpu@3;
+	};
+
+	memory {
+		reg = <0 0x40000000 0 0x10000000>;
+	};
+
+	nmbm_spim_nand {
+		compatible = "generic,nmbm";
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		lower-mtd-device = <&spi_nand>;
+		forced-create;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "BL2";
+				reg = <0x00000 0x0100000>;
+				read-only;
+			};
+
+			partition@100000 {
+				label = "u-boot-env";
+				reg = <0x0100000 0x0080000>;
+			};
+
+			factory: partition@180000 {
+				label = "Factory";
+				reg = <0x180000 0x0400000>;
+			};
+
+			partition@580000 {
+				label = "FIP";
+				reg = <0x580000 0x0200000>;
+			};
+
+			partition@780000 {
+				label = "ubi";
+				reg = <0x780000 0x7080000>;
+			};
+		};
+	};
+
+	wsys_adie: wsys_adie@0 {
+	// fpga cases need to manual change adie_id / sku_type for dvt only
+		compatible = "mediatek,rebb-mt7988-adie";
+		adie_id = <7976>;
+		sku_type = <3000>;
+	};
+
+	sound_wm8960 {
+		compatible = "mediatek,mt79xx-wm8960-machine";
+		mediatek,platform = <&afe>;
+		audio-routing = "Headphone", "HP_L",
+				"Headphone", "HP_R",
+				"LINPUT1", "AMIC",
+				"RINPUT1", "AMIC";
+		mediatek,audio-codec = <&wm8960>;
+		status = "disabled";
+	};
+
+	sound_si3218x {
+		compatible = "mediatek,mt79xx-si3218x-machine";
+		mediatek,platform = <&afe>;
+		mediatek,ext-codec = <&proslic_spi>;
+		status = "disabled";
+	};
+};
+
+&fan {
+	pwms = <&pwm 0 50000 0>;
+	status = "okay";
+};
+
+&afe {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcm_pins>;
+	status = "okay";
+};
+
+&pwm {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	status = "okay";
+
+	rt5190a_64: rt5190a@64 {
+		compatible = "richtek,rt5190a";
+		reg = <0x64>;
+		/*interrupts-extended = <&gpio26 0 IRQ_TYPE_LEVEL_LOW>;*/
+		vin2-supply = <&rt5190_buck1>;
+		vin3-supply = <&rt5190_buck1>;
+		vin4-supply = <&rt5190_buck1>;
+
+		regulators {
+			rt5190_buck1: buck1 {
+				regulator-name = "rt5190a-buck1";
+				regulator-min-microvolt = <5090000>;
+				regulator-max-microvolt = <5090000>;
+				regulator-allowed-modes =
+				<RT5190A_OPMODE_AUTO RT5190A_OPMODE_FPWM>;
+				regulator-boot-on;
+			};
+			buck2 {
+				regulator-name = "vcore";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-boot-on;
+			};
+			buck3 {
+				regulator-name = "proc";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-boot-on;
+			};
+			buck4 {
+				regulator-name = "rt5190a-buck4";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-allowed-modes =
+				<RT5190A_OPMODE_AUTO RT5190A_OPMODE_FPWM>;
+				regulator-boot-on;
+			};
+			ldo {
+				regulator-name = "rt5190a-ldo";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-boot-on;
+			};
+		};
+	};
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	status = "okay";
+
+	wm8960: wm8960@1a {
+		compatible = "wlf,wm8960";
+		reg = <0x1a>;
+	};
+
+	dps368: dps368@77 {
+		compatible = "infineon,dps310";
+		reg = <0x77>;
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_flash_pins>;
+	status = "okay";
+
+	spi_nand: spi_nand@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spi-nand";
+		spi-cal-enable;
+		spi-cal-mode = "read-data";
+		spi-cal-datalen = <7>;
+		spi-cal-data = /bits/ 8 <0x53 0x50 0x49 0x4E 0x41 0x4E 0x44>;
+		spi-cal-addrlen = <5>;
+		spi-cal-addr = /bits/ 32 <0x0 0x0 0x0 0x0 0x0>;
+		reg = <0>;
+		spi-max-frequency = <52000000>;
+		spi-tx-buswidth = <4>;
+		spi-rx-buswidth = <4>;
+	};
+};
+
+&spi1 {
+	pinctrl-names = "default";
+	/* pin shared with snfi */
+	pinctrl-0 = <&spic_pins>;
+	status = "disabled";
+
+	proslic_spi: proslic_spi@0 {
+		compatible = "silabs,proslic_spi";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+		spi-cpha = <1>;
+		spi-cpol = <1>;
+		channel_count = <1>;
+		debug_level = <4>;       /* 1 = TRC, 2 = DBG, 4 = ERR */
+		reset_gpio = <&pio 54 0>;
+		ig,enable-spi = <1>;     /* 1: Enable, 0: Disable */
+	};
+};
+
+&pcie0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie0_pins>;
+	status = "okay";
+};
+
+&pcie1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_pins>;
+	max-link-width = <1>;
+	status = "okay";
+};
+
+&pcie2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie2_pins>;
+	status = "disabled";
+};
+
+&pcie3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie3_pins>;
+	status = "okay";
+};
+
+&pio {
+	mdio0_pins: mdio0-pins {
+		mux {
+			function = "mdio";
+			groups = "mdc_mdio0";
+		};
+
+		conf {
+			groups = "mdc_mdio0";
+			drive-strength = <MTK_DRIVE_8mA>;
+		};
+	};
+
+	gbe_led0_pins: gbe-pins {
+		mux {
+			function = "led";
+			groups = "gbe_led0";
+		};
+	};
+
+	i2c0_pins: i2c0-pins-g0 {
+		mux {
+			function = "i2c";
+			groups = "i2c0_1";
+		};
+	};
+
+	pcie0_pins: pcie0-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie_2l_0_pereset", "pcie_clk_req_n0_0",
+				 "pcie_wake_n0_0";
+		};
+	};
+
+	pcie1_pins: pcie1-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie_2l_1_pereset", "pcie_clk_req_n1",
+				 "pcie_wake_n1_0";
+		};
+	};
+
+	pcie2_pins: pcie2-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie_1l_0_pereset", "pcie_clk_req_n2_0",
+				 "pcie_wake_n2_0";
+		};
+	};
+
+	pcie3_pins: pcie3-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie_1l_1_pereset", "pcie_clk_req_n3",
+				 "pcie_wake_n3_0";
+		};
+	};
+
+	spi0_flash_pins: spi0-pins {
+		mux {
+			function = "spi";
+			groups = "spi0", "spi0_wp_hold";
+		};
+	};
+
+	spic_pins: spi1-pins {
+		mux {
+			function = "spi";
+			groups = "spi1";
+		};
+	};
+
+	i2c1_pins: i2c1-pins {
+		mux {
+			function = "i2c";
+			groups = "i2c1_0";
+		};
+	};
+
+	i2s_pins: i2s-pins {
+		mux {
+			function = "audio";
+			groups = "i2s";
+		};
+	};
+
+	pcm_pins: pcm-pins {
+		mux {
+			function = "audio";
+			groups = "pcm";
+		};
+	};
+
+	uart1_pins: uart1-pins {
+		mux {
+			function = "uart";
+			groups = "uart1_2";
+		};
+	};
+};
+
+&watchdog {
+	status = "disabled";
+};
+
+&eth {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mdio0_pins>;
+	status = "okay";
+
+	gmac0: mac@0 {
+		compatible = "mediatek,eth-mac";
+		reg = <0>;
+		mac-type = "xgdm";
+		phy-mode = "10gbase-kr";
+
+		fixed-link {
+			speed = <10000>;
+			full-duplex;
+			pause;
+		};
+	};
+
+	gmac1: mac@1 {
+		compatible = "mediatek,eth-mac";
+		reg = <1>;
+		mac-type = "xgdm";
+		phy-mode = "usxgmii";
+		phy-handle = <&phy0>;
+	};
+
+	gmac2: mac@2 {
+		compatible = "mediatek,eth-mac";
+		reg = <2>;
+		mac-type = "xgdm";
+		phy-mode = "usxgmii";
+		phy-handle = <&phy1>;
+	};
+
+	mdio: mdio-bus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clock-frequency = <10500000>;
+
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+			compatible = "ethernet-phy-ieee802.3-c45";
+			reset-gpios = <&pio 72 1>;
+			reset-assert-us = <100000>;
+			reset-deassert-us = <221000>;
+		};
+
+		phy1: ethernet-phy@8 {
+			reg = <8>;
+			compatible = "ethernet-phy-ieee802.3-c45";
+			reset-gpios = <&pio 71 1>;
+			reset-assert-us = <100000>;
+			reset-deassert-us = <221000>;
+		};
+
+		switch@0 {
+			compatible = "mediatek,mt7988";
+			reg = <31>;
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					label = "lan0";
+					phy-mode = "gmii";
+					phy-handle = <&sphy0>;
+				};
+
+				port@1 {
+					reg = <1>;
+					label = "lan1";
+					phy-mode = "gmii";
+					phy-handle = <&sphy1>;
+				};
+
+				port@2 {
+					reg = <2>;
+					label = "lan2";
+					phy-mode = "gmii";
+					phy-handle = <&sphy2>;
+				};
+
+				port@3 {
+					reg = <3>;
+					label = "lan3";
+					phy-mode = "gmii";
+					phy-handle = <&sphy3>;
+				};
+
+				port@6 {
+					reg = <6>;
+					label = "cpu";
+					ethernet = <&gmac0>;
+					phy-mode = "10gbase-kr";
+
+					fixed-link {
+						speed = <10000>;
+						full-duplex;
+						pause;
+					};
+				};
+			};
+
+			mdio {
+				compatible = "mediatek,dsa-slave-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&gbe_led0_pins>;
+
+				sphy0: switch_phy0@0 {
+					compatible = "ethernet-phy-id03a2.9481";
+					reg = <0>;
+					phy-mode = "gmii";
+					rext = "efuse";
+					tx_r50 = "efuse";
+					nvmem-cells = <&phy_calibration_p0>;
+					nvmem-cell-names = "phy-cal-data";
+				};
+
+				sphy1: switch_phy1@1 {
+					compatible = "ethernet-phy-id03a2.9481";
+					reg = <1>;
+					phy-mode = "gmii";
+					rext = "efuse";
+					tx_r50 = "efuse";
+					nvmem-cells = <&phy_calibration_p1>;
+					nvmem-cell-names = "phy-cal-data";
+				};
+
+				sphy2: switch_phy2@2 {
+					compatible = "ethernet-phy-id03a2.9481";
+					reg = <2>;
+					phy-mode = "gmii";
+					rext = "efuse";
+					tx_r50 = "efuse";
+					nvmem-cells = <&phy_calibration_p2>;
+					nvmem-cell-names = "phy-cal-data";
+				};
+
+				sphy3: switch_phy3@3 {
+					compatible = "ethernet-phy-id03a2.9481";
+					reg = <3>;
+					phy-mode = "gmii";
+					rext = "efuse";
+					tx_r50 = "efuse";
+					nvmem-cells = <&phy_calibration_p3>;
+					nvmem-cell-names = "phy-cal-data";
+				};
+			};
+		};
+	};
+};
+
+&hnat {
+	mtketh-wan = "eth1";
+	mtketh-lan = "lan";
+	mtketh-lan2 = "eth2";
+	mtketh-max-gmac = <3>;
+	status = "okay";
+};
+
+&slot0 {
+	mt7996@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		device_type = "pci";
+		mediatek,mtd-eeprom = <&factory 0x0>;
+	};
+};
diff --git a/target/linux/mediatek/image/mt7988.mk b/target/linux/mediatek/image/mt7988.mk
index a9ae167..964c4d5 100644
--- a/target/linux/mediatek/image/mt7988.mk
+++ b/target/linux/mediatek/image/mt7988.mk
@@ -122,6 +122,23 @@
 endef
 TARGET_DEVICES += mediatek_mt7988a-dsa-10g-spim-nand
 
+define Device/mediatek_mt7988a-88d-10g-spim-nand
+  DEVICE_VENDOR := MediaTek
+  DEVICE_MODEL := mt7988a-88d-10g-spim-nand
+  DEVICE_DTS := mt7988a-88d-10g-spim-nand
+  DEVICE_DTS_DIR := $(DTS_DIR)/mediatek
+  SUPPORTED_DEVICES := mediatek,mt7988a-88d-10g-spim-snand
+  UBINIZE_OPTS := -E 5
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  IMAGE_SIZE := 65536k
+  KERNEL_IN_UBI := 1
+  IMAGES += factory.bin
+  IMAGE/factory.bin := append-ubi | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
+endef
+TARGET_DEVICES += mediatek_mt7988a-88d-10g-spim-nand
+
 define Device/mediatek_mt7988a-dsa-e2p5g-spim-nand
   DEVICE_VENDOR := MediaTek
   DEVICE_MODEL := mt7988a-dsa-e2p5g-spim-nand