diff --git a/boards/boards_legacy/arm/b_u585i_iot02a/Kconfig.defconfig b/boards/boards_legacy/arm/b_u585i_iot02a/Kconfig.defconfig
index bc10deca7a2..4a02acaf1c0 100644
--- a/boards/boards_legacy/arm/b_u585i_iot02a/Kconfig.defconfig
+++ b/boards/boards_legacy/arm/b_u585i_iot02a/Kconfig.defconfig
@@ -12,10 +12,6 @@ config SPI_STM32_INTERRUPT
 	default y
 	depends on SPI
 
-# Get flash configuration for NS image from dts flash partition
-config USE_DT_CODE_PARTITION
-	default y if TRUSTED_EXECUTION_NONSECURE
-
 if BUILD_WITH_TFM
 
 # Initial Attestation key provisioned by the BL1 bootloader
diff --git a/boards/st/nucleo_l552ze_q/Kconfig.defconfig b/boards/st/nucleo_l552ze_q/Kconfig.defconfig
deleted file mode 100644
index cca7c6a226c..00000000000
--- a/boards/st/nucleo_l552ze_q/Kconfig.defconfig
+++ /dev/null
@@ -1,16 +0,0 @@
-# STM32L552ZE Q Nucleo board configuration
-
-# Copyright (c) 2020 Linaro Limited
-# SPDX-License-Identifier: Apache-2.0
-
-if BOARD_NUCLEO_L552ZE_Q_STM32L552XX_NS
-
-if TRUSTED_EXECUTION_NONSECURE
-
-# Get flash configuration for NS image from dts flash partition
-config USE_DT_CODE_PARTITION
-	default y
-
-endif # TRUSTED_EXECUTION_NONSECURE
-
-endif # BOARD_NUCLEO_L552ZE_Q_STM32L552XX_NS
diff --git a/boards/st/nucleo_l552ze_q/Kconfig.nucleo_l552ze_q b/boards/st/nucleo_l552ze_q/Kconfig.nucleo_l552ze_q
index 37cfb44b270..22104ed027d 100644
--- a/boards/st/nucleo_l552ze_q/Kconfig.nucleo_l552ze_q
+++ b/boards/st/nucleo_l552ze_q/Kconfig.nucleo_l552ze_q
@@ -3,7 +3,3 @@
 
 config BOARD_NUCLEO_L552ZE_Q
 	select SOC_STM32L552XX
-
-config BOARD_NUCLEO_L552ZE_Q_STM32L552XX_NS
-	bool
-	select SOC_STM32L552XX
diff --git a/boards/st/stm32l562e_dk/Kconfig.defconfig b/boards/st/stm32l562e_dk/Kconfig.defconfig
index ac74129b6d3..3f15027bb35 100644
--- a/boards/st/stm32l562e_dk/Kconfig.defconfig
+++ b/boards/st/stm32l562e_dk/Kconfig.defconfig
@@ -27,15 +27,3 @@ config BT_HCI_VS_EXT
 endif # BT
 
 endif # BOARD_STM32L562E_DK
-
-if BOARD_STM32L562E_DK_STM32L562XX_NS
-
-if TRUSTED_EXECUTION_NONSECURE
-
-# Get flash configuration for NS image from dts flash partition
-config USE_DT_CODE_PARTITION
-	default y
-
-endif # TRUSTED_EXECUTION_NONSECURE
-
-endif # BOARD_STM32L562E_DK_STM32L562XX_NS
diff --git a/boards/st/stm32l562e_dk/Kconfig.stm32l562e_dk b/boards/st/stm32l562e_dk/Kconfig.stm32l562e_dk
index 48b426203df..f5b901a2bce 100644
--- a/boards/st/stm32l562e_dk/Kconfig.stm32l562e_dk
+++ b/boards/st/stm32l562e_dk/Kconfig.stm32l562e_dk
@@ -3,7 +3,3 @@
 
 config BOARD_STM32L562E_DK
 	select SOC_STM32L562XX
-
-config BOARD_STM32L562E_DK_STM32L562XX_NS
-	bool
-	select SOC_STM32L562XX
diff --git a/soc/st/stm32/Kconfig.defconfig b/soc/st/stm32/Kconfig.defconfig
index 9fa9460a515..b214f103723 100644
--- a/soc/st/stm32/Kconfig.defconfig
+++ b/soc/st/stm32/Kconfig.defconfig
@@ -56,4 +56,8 @@ config MEMC_STM32
 	default y
 	depends on MEMC
 
+# Get flash configuration for NS image from dts flash partition
+config USE_DT_CODE_PARTITION
+	default y if TRUSTED_EXECUTION_NONSECURE
+
 endif # SOC_FAMILY_STM32