diff --git a/docs/plat/stm32mp1.rst b/docs/plat/stm32mp1.rst
index cefc21f..7ae98b1 100644
--- a/docs/plat/stm32mp1.rst
+++ b/docs/plat/stm32mp1.rst
@@ -2,15 +2,34 @@
 ===========================
 
 STM32MP1 is a microprocessor designed by STMicroelectronics
-based on a dual Arm Cortex-A7.
+based on Arm Cortex-A7.
 It is an Armv7-A platform, using dedicated code from TF-A.
-The STM32MP1 chip also embeds a Cortex-M4.
 More information can be found on `STM32MP1 Series`_ page.
 
 
 STM32MP1 Versions
 -----------------
-The STM32MP1 series is available in 3 different lines which are pin-to-pin compatible:
+
+There are 2 variants for STM32MP1: STM32MP13 and STM32MP15
+
+STM32MP13 Versions
+~~~~~~~~~~~~~~~~~~
+The STM32MP13 series is available in 3 different lines which are pin-to-pin compatible:
+
+- STM32MP131: Single Cortex-A7 core
+- STM32MP133: STM32MP131 + 2*CAN, ETH2(GMAC), ADC1
+- STM32MP135: STM32MP133 + DCMIPP, LTDC
+
+Each line comes with a security option (cryptography & secure boot) and a Cortex-A frequency option:
+
+- A      Cortex-A7 @ 650 MHz
+- C      Secure Boot + HW Crypto + Cortex-A7 @ 650 MHz
+- D      Cortex-A7 @ 900 MHz
+- F      Secure Boot + HW Crypto + Cortex-A7 @ 900 MHz
+
+STM32MP15 Versions
+~~~~~~~~~~~~~~~~~~
+The STM32MP15 series is available in 3 different lines which are pin-to-pin compatible:
 
 - STM32MP157: Dual Cortex-A7 cores, Cortex-M4 core @ 209 MHz, 3D GPU, DSI display interface and CAN FD
 - STM32MP153: Dual Cortex-A7 cores, Cortex-M4 core @ 209 MHz and CAN FD
@@ -131,6 +150,10 @@
   | Default: 115200
 - | ``STM32_TF_VERSION``: to manage BL2 monotonic counter.
   | Default: 0
+- | ``STM32MP13``: to select STM32MP13 variant configuration.
+  | Default: 0
+- | ``STM32MP15``: to select STM32MP15 variant configuration.
+  | Default: 1
 
 
 Boot with FIP
diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk
index ddfc5e7..6b8b712 100644
--- a/plat/st/stm32mp1/platform.mk
+++ b/plat/st/stm32mp1/platform.mk
@@ -24,6 +24,22 @@
 # Enable dynamic memory mapping
 PLAT_XLAT_TABLES_DYNAMIC :=	1
 
+ifeq ($(STM32MP13),1)
+STM32MP13		:=	1
+STM32MP15		:=	0
+
+# DDR controller with single AXI port and 16-bit interface
+STM32MP_DDR_DUAL_AXI_PORT:=	0
+STM32MP_DDR_32BIT_INTERFACE:=	0
+
+# STM32 image header version v2.0
+STM32_HEADER_VERSION_MAJOR:=	2
+STM32_HEADER_VERSION_MINOR:=	0
+else
+#STM32MP15
+STM32MP13		:=	0
+STM32MP15		:=	1
+
 # DDR controller with dual AXI port and 32-bit interface
 STM32MP_DDR_DUAL_AXI_PORT:=	1
 STM32MP_DDR_32BIT_INTERFACE:=	1
@@ -31,6 +47,7 @@
 # STM32 image header version v1.0
 STM32_HEADER_VERSION_MAJOR:=	1
 STM32_HEADER_VERSION_MINOR:=	0
+endif
 
 # STM32 image header binary type for BL2
 STM32_HEADER_BL2_BINARY_TYPE:=	0x10
@@ -174,6 +191,8 @@
 		STM32MP_UART_PROGRAMMER \
 		STM32MP_USB_PROGRAMMER \
 		STM32MP_USE_STM32IMAGE \
+		STM32MP13 \
+		STM32MP15 \
 )))
 
 $(eval $(call assert_numerics,\
@@ -203,6 +222,8 @@
 		STM32MP_UART_PROGRAMMER \
 		STM32MP_USB_PROGRAMMER \
 		STM32MP_USE_STM32IMAGE \
+		STM32MP13 \
+		STM32MP15 \
 )))
 
 # Include paths and source files
diff --git a/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk b/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
index b506e95..c3fc2cb 100644
--- a/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
+++ b/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
@@ -4,6 +4,10 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
+ifeq ($(STM32MP13),1)
+$(error "SP_min is not supported on STM32MP13 platform")
+endif
+
 SP_MIN_WITH_SECURE_FIQ	:=	1
 
 ifneq ($(STM32MP_USE_STM32IMAGE),1)