diff --git a/include/dt-bindings/soc/stm32mp15-tzc400.h b/include/dt-bindings/soc/stm32mp15-tzc400.h
new file mode 100644
index 0000000..54cd902
--- /dev/null
+++ b/include/dt-bindings/soc/stm32mp15-tzc400.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
+/*
+ * Copyright (C) 2021, STMicroelectronics - All Rights Reserved
+ */
+
+#ifndef _DT_BINDINGS_STM32MP15_TZC400_H
+#define _DT_BINDINGS_STM32MP15_TZC400_H
+
+#include <drivers/arm/tzc_common.h>
+
+#define STM32MP1_TZC_A7_ID		U(0)
+#define STM32MP1_TZC_M4_ID		U(1)
+#define STM32MP1_TZC_LCD_ID		U(3)
+#define STM32MP1_TZC_GPU_ID		U(4)
+#define STM32MP1_TZC_MDMA_ID		U(5)
+#define STM32MP1_TZC_DMA_ID		U(6)
+#define STM32MP1_TZC_USB_HOST_ID	U(7)
+#define STM32MP1_TZC_USB_OTG_ID		U(8)
+#define STM32MP1_TZC_SDMMC_ID		U(9)
+#define STM32MP1_TZC_ETH_ID		U(10)
+#define STM32MP1_TZC_DAP_ID		U(15)
+
+#define TZC_REGION_NSEC_ALL_ACCESS_RDWR \
+	(TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_A7_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_GPU_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_LCD_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_MDMA_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_M4_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_DMA_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_USB_HOST_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_USB_OTG_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_SDMMC_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_ETH_ID) | \
+	 TZC_REGION_ACCESS_RDWR(STM32MP1_TZC_DAP_ID))
+
+#endif /* _DT_BINDINGS_STM32MP15_TZC400_H */