new file mode 100644
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ */
+
+#ifndef _MTK_SECURE_API_H_
+#define _MTK_SECURE_API_H_
+
+#include <linux/kernel.h>
+
+
+/* Error Code */
+#define SIP_SVC_E_SUCCESS 0
+#define SIP_SVC_E_NOT_SUPPORTED -1
+#define SIP_SVC_E_INVALID_PARAMS -2
+#define SIP_SVC_E_INVALID_RANGE -3
+#define SIP_SVC_E_PERMISSION_DENY -4
+
+#ifdef CONFIG_ARM64
+#define MTK_SIP_SMC_AARCH_BIT 0x40000000
+#else
+#define MTK_SIP_SMC_AARCH_BIT 0x00000000
+#endif
+
+
+/*******************************************************************************
+ * Defines for Mediatek runtime services func ids
+ ******************************************************************************/
+
+/* Debug feature and ATF related SMC call */
+
+/* CPU operations related SMC call */
+
+/* SPM related SMC call */
+
+/* Low power related SMC call */
+
+/* AMMS related SMC call */
+
+/* Security related SMC call */
+/* HWRNG */
+#define MTK_SIP_KERNEL_GET_RND \
+ (0x82000206 | MTK_SIP_SMC_AARCH_BIT)
+
+/* Storage Encryption related SMC call */
+
+/* Platform related SMC call */
+
+/* Pheripheral related SMC call */
+
+/* MM related SMC call */
+
+
+#endif /* _MTK_SECURE_API_H_ */
+