diff --git a/include/drivers/st/etzpc.h b/include/drivers/st/etzpc.h
new file mode 100644
index 0000000..6e3fec1
--- /dev/null
+++ b/include/drivers/st/etzpc.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2017-2020, STMicroelectronics - All Rights Reserved
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef DRIVERS_ST_ETZPC_H
+#define DRIVERS_ST_ETZPC_H
+
+/* Define security level for each peripheral (DECPROT) */
+enum etzpc_decprot_attributes {
+	ETZPC_DECPROT_S_RW = 0,
+	ETZPC_DECPROT_NS_R_S_W = 1,
+	ETZPC_DECPROT_MCU_ISOLATION = 2,
+	ETZPC_DECPROT_NS_RW = 3,
+	ETZPC_DECPROT_MAX = 4,
+};
+
+void etzpc_configure_decprot(uint32_t decprot_id,
+			     enum etzpc_decprot_attributes decprot_attr);
+enum etzpc_decprot_attributes etzpc_get_decprot(uint32_t decprot_id);
+void etzpc_lock_decprot(uint32_t decprot_id);
+
+void etzpc_configure_tzma(uint32_t tzma_id, uint16_t tzma_value);
+uint16_t etzpc_get_tzma(uint32_t tzma_id);
+void etzpc_lock_tzma(uint32_t tzma_id);
+bool etzpc_get_lock_tzma(uint32_t tzma_id);
+
+uint8_t etzpc_get_num_per_sec(void);
+uint8_t etzpc_get_revision(void);
+uintptr_t etzpc_get_base_address(void);
+
+int etzpc_init(void);
+
+#endif /* DRIVERS_ST_ETZPC_H */