diff --git a/plat/st/stm32mp2/include/platform_def.h b/plat/st/stm32mp2/include/platform_def.h
index e720c02c9..523f9bb51 100644
--- a/plat/st/stm32mp2/include/platform_def.h
+++ b/plat/st/stm32mp2/include/platform_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023-2024, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2023-2025, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -73,8 +73,15 @@
 /*******************************************************************************
  * BL31 specific defines.
  ******************************************************************************/
+#if ENABLE_PIE
 #define BL31_BASE			0
-#define BL31_LIMIT			(STM32MP_SEC_SYSRAM_SIZE / 2)
+#else
+#define BL31_BASE			STM32MP_SYSRAM_BASE
+#endif
+
+#define BL31_LIMIT			(BL31_BASE + (STM32MP_SYSRAM_SIZE / 2))
+
+#define BL31_PROGBITS_LIMIT		(BL31_BASE + STM32MP_BL31_SIZE)
 
 /*******************************************************************************
  * BL33 specific defines.
diff --git a/plat/st/stm32mp2/platform.mk b/plat/st/stm32mp2/platform.mk
index a9f8d8fac..d5e278540 100644
--- a/plat/st/stm32mp2/platform.mk
+++ b/plat/st/stm32mp2/platform.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2023-2024, STMicroelectronics - All Rights Reserved
+# Copyright (c) 2023-2025, STMicroelectronics - All Rights Reserved
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -11,9 +11,12 @@ STM32_EXTRA_PARTS		:=	6
 include plat/st/common/common.mk
 
 CRASH_REPORTING			:=	1
-ENABLE_PIE			:=	1
+# Disable PIE by default. To re-enable it, uncomment next line.
+#ENABLE_PIE			:=	1
 PROGRAMMABLE_RESET_ADDRESS	:=	1
+ifeq ($(ENABLE_PIE),1)
 BL2_IN_XIP_MEM			:=	1
+endif
 
 STM32MP_BL33_EL1		?=	1
 ifeq ($(STM32MP_BL33_EL1),1)
diff --git a/plat/st/stm32mp2/stm32mp2_def.h b/plat/st/stm32mp2/stm32mp2_def.h
index b44150212..3e60cad2b 100644
--- a/plat/st/stm32mp2/stm32mp2_def.h
+++ b/plat/st/stm32mp2/stm32mp2_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023-2024, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2023-2025, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -76,8 +76,6 @@
 #define RETRAM_BASE				U(0x0E080000)
 #define RETRAM_SIZE				U(0x00020000)
 
-#define STM32MP_SEC_SYSRAM_SIZE			STM32MP_SYSRAM_SIZE
-
 /* DDR configuration */
 #define STM32MP_DDR_BASE			U(0x80000000)
 #define STM32MP_DDR_MAX_SIZE			UL(0x100000000)	/* Max 4GB */
@@ -113,11 +111,9 @@ enum ddr_type {
 #define STM32MP_BL2_SIZE			U(0x00029000) /* 164 KB for BL2 */
 
 /* Allocate remaining sysram to BL31 Binary only */
-#define STM32MP_BL31_SIZE			(STM32MP_SEC_SYSRAM_SIZE - \
+#define STM32MP_BL31_SIZE			(STM32MP_SYSRAM_SIZE - \
 						 STM32MP_BL2_SIZE)
 
-#define BL31_PROGBITS_LIMIT			STM32MP_BL31_SIZE
-
 #define STM32MP_BL2_BASE			(STM32MP_SYSRAM_BASE + \
 						 STM32MP_SYSRAM_SIZE - \
 						 STM32MP_BL2_SIZE)