diff --git a/src/bsp/lk/include/boot_args.h b/src/bsp/lk/include/boot_args.h
new file mode 100644
index 0000000..bd5a751
--- /dev/null
+++ b/src/bsp/lk/include/boot_args.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _MT_BOOT_ARGS_H_
+#define _MT_BOOT_ARGS_H_
+
+#include <sys/types.h>
+#include <platform/emi_info_v1.h>
+
+typedef struct {
+    u32 maggic_number;
+    u32 boot_mode;
+    u32 boot_reason;
+    u32 rgu_mode;
+    u32 ddr_reserve_enable;
+    u32 ddr_reserve_success;
+    u32 ddr_reserve_ready;
+    emi_info_t emi_info;
+    u64 dram_size;
+    u32 cold_reset;
+} BOOT_ARGUMENT;
+
+#define BOOT_ARGUMENT_MAGIC 0x504c504c
+#endif