diff --git a/include/tee/optee.h b/include/tee/optee.h
new file mode 100644
index 0000000..9ab0d08
--- /dev/null
+++ b/include/tee/optee.h
@@ -0,0 +1,30 @@
+/*
+ * OP-TEE related definitions
+ *
+ * (C) Copyright 2016 Linaro Limited
+ * Andrew F. Davis <andrew.davis@linaro.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#ifndef	_OPTEE_H
+#define _OPTEE_H
+
+#define OPTEE_MAGIC             0x4554504f
+#define OPTEE_VERSION           1
+#define OPTEE_ARCH_ARM32        0
+#define OPTEE_ARCH_ARM64        1
+
+struct optee_header {
+	uint32_t magic;
+	uint8_t version;
+	uint8_t arch;
+	uint16_t flags;
+	uint32_t init_size;
+	uint32_t init_load_addr_hi;
+	uint32_t init_load_addr_lo;
+	uint32_t init_mem_usage;
+	uint32_t paged_size;
+};
+
+#endif /* _OPTEE_H */