diff --git a/plat/st/common/include/stm32mp_common.h b/plat/st/common/include/stm32mp_common.h
index 66b93102d..0ff60929f 100644
--- a/plat/st/common/include/stm32mp_common.h
+++ b/plat/st/common/include/stm32mp_common.h
@@ -20,6 +20,12 @@
 /* FWU configuration (max supported value is 15) */
 #define FWU_MAX_TRIAL_REBOOT		U(3)
 
+/* Define maximum page size for NAND devices */
+#define PLATFORM_MTD_MAX_PAGE_SIZE	U(0x1000)
+
+/* Needed by STM32CubeProgrammer support */
+#define DWL_BUFFER_SIZE			U(0x01000000)
+
 /* Functions to save and get boot context address given by ROM code */
 void stm32mp_save_boot_ctx_address(uintptr_t address);
 uintptr_t stm32mp_get_boot_ctx_address(void);
diff --git a/plat/st/stm32mp1/include/platform_def.h b/plat/st/stm32mp1/include/platform_def.h
index f26eb526c..7e6d91fe0 100644
--- a/plat/st/stm32mp1/include/platform_def.h
+++ b/plat/st/stm32mp1/include/platform_def.h
@@ -77,9 +77,6 @@
  ******************************************************************************/
 #define BL33_BASE			STM32MP_BL33_BASE
 
-/* Needed by STM32CubeProgrammer support */
-#define DWL_BUFFER_SIZE			U(0x01000000)
-
 /*******************************************************************************
  * DTB specific defines.
  ******************************************************************************/
diff --git a/plat/st/stm32mp1/stm32mp1_def.h b/plat/st/stm32mp1/stm32mp1_def.h
index 8fc8c8967..0d401f945 100644
--- a/plat/st/stm32mp1/stm32mp1_def.h
+++ b/plat/st/stm32mp1/stm32mp1_def.h
@@ -186,9 +186,6 @@ enum ddr_type {
 #endif
 #define STM32MP_BL33_MAX_SIZE		U(0x400000)
 
-/* Define maximum page size for NAND devices */
-#define PLATFORM_MTD_MAX_PAGE_SIZE	U(0x1000)
-
 /* Define location for the MTD scratch buffer */
 #if STM32MP13
 #define STM32MP_MTD_BUFFER		(SRAM1_BASE + \