diff --git a/docs/plat/stm32mp1.rst b/docs/plat/stm32mp1.rst
index 7ae98b1..be86ae4 100644
--- a/docs/plat/stm32mp1.rst
+++ b/docs/plat/stm32mp1.rst
@@ -144,6 +144,8 @@
 
 - | ``DTB_FILE_NAME``: to precise board device-tree blob to be used.
   | Default: stm32mp157c-ev1.dtb
+- | ``DWL_BUFFER_BASE``: the 'serial boot' load address of FIP,
+  | default location (end of the first 128MB) is used when absent
 - | ``STM32MP_EARLY_CONSOLE``: to enable early traces before clock driver is setup.
   | Default: 0 (disabled)
 - | ``STM32MP_UART_BAUDRATE``: to select UART baud rate.
diff --git a/plat/st/stm32mp1/include/platform_def.h b/plat/st/stm32mp1/include/platform_def.h
index 9c55226..fe4ef3d 100644
--- a/plat/st/stm32mp1/include/platform_def.h
+++ b/plat/st/stm32mp1/include/platform_def.h
@@ -103,7 +103,6 @@
 #define PLAT_STM32MP_NS_IMAGE_OFFSET	BL33_BASE
 
 /* Needed by STM32CubeProgrammer support */
-#define DWL_BUFFER_BASE			(STM32MP_DDR_BASE + U(0x07000000))
 #define DWL_BUFFER_SIZE			U(0x01000000)
 
 /*
diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk
index 7203de8..be07a4b 100644
--- a/plat/st/stm32mp1/platform.mk
+++ b/plat/st/stm32mp1/platform.mk
@@ -121,6 +121,9 @@
 STM32MP_USB_PROGRAMMER	?=	0
 STM32MP_UART_PROGRAMMER	?=	0
 
+# Download load address for serial boot devices
+DWL_BUFFER_BASE 	?=	0xC7000000
+
 # Device tree
 ifeq ($(STM32MP13),1)
 BL2_DTSI		:=	stm32mp13-bl2.dtsi
@@ -225,6 +228,7 @@
 
 $(eval $(call add_defines,\
 	$(sort \
+		DWL_BUFFER_BASE \
 		PLAT_PARTITION_MAX_ENTRIES \
 		PLAT_XLAT_TABLES_DYNAMIC \
 		STM32_TF_A_COPIES \