diff --git a/plat/st/stm32mp1/stm32mp1_fip_def.h b/plat/st/stm32mp1/stm32mp1_fip_def.h
new file mode 100644
index 0000000..5b9a3cb
--- /dev/null
+++ b/plat/st/stm32mp1/stm32mp1_fip_def.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2021, STMicroelectronics - All Rights Reserved
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STM32MP1_FIP_DEF_H
+#define STM32MP1_FIP_DEF_H
+
+#define STM32MP_BL2_SIZE		U(0x0001B000)	/* 108 KB for BL2 */
+#define STM32MP_BL2_DTB_SIZE		U(0x00006000)	/* 24 KB for DTB */
+#define STM32MP_BL32_SIZE		U(0x00019000)	/* 100 KB for BL32 */
+#define STM32MP_BL32_DTB_SIZE		U(0x00005000)	/* 20 KB for DTB */
+#define STM32MP_HW_CONFIG_MAX_SIZE	U(0x40000)	/* 256 KB for HW config DTB */
+
+#define STM32MP_BL2_BASE		(STM32MP_SEC_SYSRAM_BASE + \
+					 STM32MP_SEC_SYSRAM_SIZE - \
+					 STM32MP_BL2_SIZE)
+
+#define STM32MP_BL2_DTB_BASE		(STM32MP_BL2_BASE - \
+					 STM32MP_BL2_DTB_SIZE)
+
+#define STM32MP_BL32_DTB_BASE		STM32MP_SYSRAM_BASE
+
+#define STM32MP_BL32_BASE		(STM32MP_BL32_DTB_BASE + \
+					 STM32MP_BL32_DTB_SIZE)
+
+#if defined(IMAGE_BL2)
+#define STM32MP_DTB_SIZE		STM32MP_BL2_DTB_SIZE
+#define STM32MP_DTB_BASE		STM32MP_BL2_DTB_BASE
+#endif
+#if defined(IMAGE_BL32)
+#define STM32MP_DTB_SIZE		STM32MP_BL32_DTB_SIZE
+#define STM32MP_DTB_BASE		STM32MP_BL32_DTB_BASE
+#endif
+
+#ifdef AARCH32_SP_OPTEE
+#define STM32MP_OPTEE_BASE		STM32MP_SEC_SYSRAM_BASE
+
+#define STM32MP_OPTEE_SIZE		(STM32MP_BL2_DTB_BASE -  \
+					 STM32MP_OPTEE_BASE)
+#endif
+
+#define STM32MP_HW_CONFIG_BASE		(STM32MP_BL33_BASE + \
+					STM32MP_BL33_MAX_SIZE)
+
+/*
+ * MAX_MMAP_REGIONS is usually:
+ * BL stm32mp1_mmap size + mmap regions in *_plat_arch_setup
+ */
+#if defined(IMAGE_BL32)
+#define MAX_MMAP_REGIONS		10
+#endif
+
+/*******************************************************************************
+ * STM32MP1 RAW partition offset for MTD devices
+ ******************************************************************************/
+#define STM32MP_NOR_FIP_OFFSET		U(0x00080000)
+#define STM32MP_NAND_FIP_OFFSET		U(0x00200000)
+
+#endif /* STM32MP1_FIP_DEF_H */