diff --git a/drivers/amlogic/media_modules/common/firmware/firmware_type.c b/drivers/amlogic/media_modules/common/firmware/firmware_type.c
index cf5e306359bc..40a21ec6e87c 100644
--- a/drivers/amlogic/media_modules/common/firmware/firmware_type.c
+++ b/drivers/amlogic/media_modules/common/firmware/firmware_type.c
@@ -17,6 +17,7 @@ static const struct type_name_s type_name[] = {
 	{VIDEO_DEC_H264_4k2K_SINGLE, "h264_4k2k_single"},
 	{VIDEO_DEC_H264_MVC, "h264_mvc"},
 	{VIDEO_DEC_H264_MULTI, "h264_multi"},
+	{VIDEO_DEC_H264_MULTI_MMU, "h264_multi_mmu"},
 	{VIDEO_DEC_HEVC, "hevc"},
 	{VIDEO_DEC_HEVC_MMU, "hevc_mmu"},
 	{VIDEO_DEC_VP9, "vp9"},
diff --git a/drivers/amlogic/media_modules/common/firmware/firmware_type.h b/drivers/amlogic/media_modules/common/firmware/firmware_type.h
index 74c962f4cdb8..0bd842e098f3 100644
--- a/drivers/amlogic/media_modules/common/firmware/firmware_type.h
+++ b/drivers/amlogic/media_modules/common/firmware/firmware_type.h
@@ -27,6 +27,7 @@ enum firmware_type_e {
 	VIDEO_ENC_H264,
 	VIDEO_ENC_JPEG,
 	VIDEO_PACKAGE,
+	VIDEO_DEC_H264_MULTI_MMU,
 	FIRMWARE_MAX
 };
 
diff --git a/drivers/amlogic/media_modules/frame_provider/decoder/h264_multi/vmh264.c b/drivers/amlogic/media_modules/frame_provider/decoder/h264_multi/vmh264.c
index cb5d128d6b08..402b3e9a454e 100644
--- a/drivers/amlogic/media_modules/frame_provider/decoder/h264_multi/vmh264.c
+++ b/drivers/amlogic/media_modules/frame_provider/decoder/h264_multi/vmh264.c
@@ -686,6 +686,7 @@ struct vdec_h264_hw_s {
 	u32 cfg_param4;
 	int valve_count;
 	struct firmware_s *fw;
+	struct firmware_s *fw_mmu;
 };
 
 
@@ -4610,6 +4611,31 @@ static s32 vh264_init(struct vdec_h264_hw_s *hw)
 		memcpy((u8 *) hw->mc_cpu_addr + MC_OFFSET_MAIN + 0x3000,
 			fw->data + 0x5000, 0x1000);
 
+		if (mmu_enable) {
+			int fw_mmu_size = 0x1000 * 16;
+			struct firmware_s *fw_mmu = NULL;
+
+			pr_debug("start load mmu fw ...\n");
+
+			fw_mmu = vmalloc(sizeof(struct firmware_s) + fw_mmu_size);
+			if (IS_ERR_OR_NULL(fw_mmu))
+				return -ENOMEM;
+
+			size = get_firmware_data(VIDEO_DEC_H264_MULTI_MMU,
+				fw_mmu->data);
+			if (size < 0) {
+				pr_err("get mmu fw fail.\n");
+				vfree(fw_mmu);
+				return -1;
+			}
+
+			ret = amhevc_loadmc_ex(VFORMAT_HEVC,
+				NULL, fw_mmu->data);
+
+			fw_mmu->len = size;
+			hw->fw_mmu = fw_mmu;
+		}
+
 		if (ret < 0) {
 			dpb_print(DECODE_ID(hw), PRINT_FLAG_ERROR,
 			"264 load orignal firmware error.\n");
@@ -4758,6 +4784,11 @@ static int vh264_stop(struct vdec_h264_hw_s *hw)
 	vfree(hw->fw);
 	hw->fw = NULL;
 
+	if (mmu_enable) {
+		vfree(hw->fw_mmu);
+		hw->fw_mmu = NULL;
+	}
+
 	dpb_print(DECODE_ID(hw), 0,
 		"%s\n",
 		__func__);
@@ -4946,8 +4977,8 @@ result_done:
 			READ_VREG(VLD_MEM_VIFIFO_RP));
 		vdec_vframe_dirty(hw_to_vdec(hw), hw->chunk);
 		amvdec_stop();
-		if (mmu_enable)
-			amhevc_stop();
+		//if (mmu_enable)
+			//amhevc_stop();
 	} else if (hw->dec_result == DEC_RESULT_AGAIN) {
 		/*
 			stream base: stream buf empty or timeout
diff --git a/drivers/amlogic/media_modules/stream_input/amports/amstream.c b/drivers/amlogic/media_modules/stream_input/amports/amstream.c
index 894f3aad8b5f..ef7b1f0f8a50 100644
--- a/drivers/amlogic/media_modules/stream_input/amports/amstream.c
+++ b/drivers/amlogic/media_modules/stream_input/amports/amstream.c
@@ -603,8 +603,10 @@ static int video_port_init(struct port_priv_s *priv,
 			priv->vdec->sys_info->width) > 1920*1088) {
 		pbuf->for_4k = 1;
 		if (get_cpu_type() >= MESON_CPU_MAJOR_ID_TXLX
-				&& port->vformat == VFORMAT_H264)
+				&& port->vformat == VFORMAT_H264) {
+			amports_switch_gate("clk_hevc_mux", 1);
 			vdec_poweron(VDEC_HEVC);
+		}
 	} else {
 		pbuf->for_4k = 0;
 	}
diff --git a/firmware/video/video_ucode.bin b/firmware/video/video_ucode.bin
index 08a3f302b4cb..0d748ae2a3f6 100644
Binary files a/firmware/video/video_ucode.bin and b/firmware/video/video_ucode.bin differ