diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt b/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
index c1ccd8582eb2..ac949f7fe3d4 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
@@ -61,6 +61,7 @@ Required properties:
 	"mediatek,mt6779-m4u" for mt6779 which uses generation two m4u HW.
 	"mediatek,mt7623-m4u", "mediatek,mt2701-m4u" for mt7623 which uses
 						     generation one m4u HW.
+	"mediatek,mt8167-m4u" for mt8167 which uses generation two m4u HW.
 	"mediatek,mt8173-m4u" for mt8173 which uses generation two m4u HW.
 	"mediatek,mt8183-m4u" for mt8183 which uses generation two m4u HW.
 - reg : m4u register base and size.
@@ -80,6 +81,7 @@ Required properties:
 	dt-binding/memory/mt2701-larb-port.h for mt2701, mt7623
 	dt-binding/memory/mt2712-larb-port.h for mt2712,
 	dt-binding/memory/mt6779-larb-port.h for mt6779,
+	dt-binding/memory/mt8167-larb-port.h for mt8167,
 	dt-binding/memory/mt8173-larb-port.h for mt8173, and
 	dt-binding/memory/mt8183-larb-port.h for mt8183.
 
diff --git a/include/dt-bindings/memory/mt8167-larb-port.h b/include/dt-bindings/memory/mt8167-larb-port.h
new file mode 100644
index 000000000000..000fb299a408
--- /dev/null
+++ b/include/dt-bindings/memory/mt8167-larb-port.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2020 MediaTek Inc.
+ * Copyright (c) 2020 BayLibre, SAS
+ * Author: Honghui Zhang <honghui.zhang@mediatek.com>
+ * Author: Fabien Parent <fparent@baylibre.com>
+ */
+#ifndef __DTS_IOMMU_PORT_MT8167_H
+#define __DTS_IOMMU_PORT_MT8167_H
+
+#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
+
+#define M4U_LARB0_ID			0
+#define M4U_LARB1_ID			1
+#define M4U_LARB2_ID			2
+
+/* larb0 */
+#define M4U_PORT_DISP_OVL0		MTK_M4U_ID(M4U_LARB0_ID, 0)
+#define M4U_PORT_DISP_RDMA0		MTK_M4U_ID(M4U_LARB0_ID, 1)
+#define M4U_PORT_DISP_WDMA0		MTK_M4U_ID(M4U_LARB0_ID, 2)
+#define M4U_PORT_DISP_RDMA1		MTK_M4U_ID(M4U_LARB0_ID, 3)
+#define M4U_PORT_MDP_RDMA		MTK_M4U_ID(M4U_LARB0_ID, 4)
+#define M4U_PORT_MDP_WDMA		MTK_M4U_ID(M4U_LARB0_ID, 5)
+#define M4U_PORT_MDP_WROT		MTK_M4U_ID(M4U_LARB0_ID, 6)
+#define M4U_PORT_DISP_FAKE		MTK_M4U_ID(M4U_LARB0_ID, 7)
+
+/* larb1*/
+#define M4U_PORT_CAM_IMGO		MTK_M4U_ID(M4U_LARB1_ID, 0)
+#define M4U_PORT_CAM_IMG2O		MTK_M4U_ID(M4U_LARB1_ID, 1)
+#define M4U_PORT_CAM_LSCI		MTK_M4U_ID(M4U_LARB1_ID, 2)
+#define M4U_PORT_CAM_ESFKO		MTK_M4U_ID(M4U_LARB1_ID, 3)
+#define M4U_PORT_CAM_AAO		MTK_M4U_ID(M4U_LARB1_ID, 4)
+#define M4U_PORT_VENC_REC		MTK_M4U_ID(M4U_LARB1_ID, 5)
+#define M4U_PORT_VENC_BSDMA		MTK_M4U_ID(M4U_LARB1_ID, 6)
+#define M4U_PORT_VENC_RD_COMV		MTK_M4U_ID(M4U_LARB1_ID, 7)
+#define M4U_PORT_CAM_IMGI		MTK_M4U_ID(M4U_LARB1_ID, 8)
+#define M4U_PORT_VENC_CUR_LUMA		MTK_M4U_ID(M4U_LARB1_ID, 9)
+#define M4U_PORT_VENC_CUR_CHROMA	MTK_M4U_ID(M4U_LARB1_ID, 10)
+#define M4U_PORT_VENC_REF_LUMA		MTK_M4U_ID(M4U_LARB1_ID, 11)
+#define M4U_PORT_VENC_REF_CHROMA	MTK_M4U_ID(M4U_LARB1_ID, 12)
+
+/* larb2*/
+#define M4U_PORT_HW_VDEC_MC_EXT		MTK_M4U_ID(M4U_LARB2_ID, 0)
+#define M4U_PORT_HW_VDEC_PP_EXT		MTK_M4U_ID(M4U_LARB2_ID, 1)
+#define M4U_PORT_HW_VDEC_VLD_EXT	MTK_M4U_ID(M4U_LARB2_ID, 2)
+#define M4U_PORT_HW_VDEC_AVC_MV_EXT	MTK_M4U_ID(M4U_LARB2_ID, 3)
+#define M4U_PORT_HW_VDEC_PRED_RD_EXT	MTK_M4U_ID(M4U_LARB2_ID, 4)
+#define M4U_PORT_HW_VDEC_PRED_WR_EXT	MTK_M4U_ID(M4U_LARB2_ID, 5)
+#define M4U_PORT_HW_VDEC_PPWRAP_EXT	MTK_M4U_ID(M4U_LARB2_ID, 6)
+
+#endif