diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988.dtsi
index 561450e..d99c1d5 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988.dtsi
@@ -700,6 +700,10 @@
 			#interrupt-cells = <1>;
 			interrupt-controller;
 		};
+
+		slot1: pcie@0,0 {
+			reg = <0x0000 0 0 0 0>;
+		};
 	};
 
 	pcie2: pcie@11280000 {
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-dsa-10g-spim-nand.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-dsa-10g-spim-nand.dts
index 0f94eea..003fb51 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-dsa-10g-spim-nand.dts
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988a-dsa-10g-spim-nand.dts
@@ -549,3 +549,11 @@
 		mediatek,mtd-eeprom = <&factory 0x0>;
 	};
 };
+
+&slot1 {
+	mt7992@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		device_type = "pci";
+		mediatek,mtd-eeprom = <&factory 0x0>;
+	};
+};
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988d-dsa-10g-spim-nand.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988d-dsa-10g-spim-nand.dts
index e158c6a..1f8952d 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988d-dsa-10g-spim-nand.dts
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988d-dsa-10g-spim-nand.dts
@@ -526,3 +526,11 @@
 	mtketh-max-gmac = <3>;
 	status = "okay";
 };
+
+&slot0 {
+	mt7996@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		device_type = "pci";
+		mediatek,mtd-eeprom = <&factory 0x0>;
+	};
+};