diff --git a/arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.series b/arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.series
index af58ae25a22..ad9ca348c3d 100644
--- a/arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.series
+++ b/arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.series
@@ -12,9 +12,11 @@ source "arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.stm32f1*"
 config SOC_SERIES
 	default stm32f1
 
+if !HAS_DTS
 config NUM_IRQ_PRIO_BITS
 	int
 	default 4
+endif # !HAS_DTS
 
 if WATCHDOG
 
diff --git a/arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.stm32f103xb b/arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.stm32f103xb
index 2143798876b..e256548799c 100644
--- a/arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.stm32f103xb
+++ b/arch/arm/soc/st_stm32/stm32f1/Kconfig.defconfig.stm32f103xb
@@ -10,6 +10,8 @@ if SOC_STM32F103XB
 config SOC
 	string
 	default stm32f103xb
+
+if !HAS_DTS
 config SRAM_SIZE
 	default 20
 
@@ -19,6 +21,7 @@ config FLASH_SIZE
 config NUM_IRQS
 	int
 	default 59
+endif # !HAS_DTS
 
 endif # SOC_STM32F103XB
 
diff --git a/boards/arm/olimexino_stm32/olimexino_stm32_defconfig b/boards/arm/olimexino_stm32/olimexino_stm32_defconfig
index 42969c21966..be715337d97 100644
--- a/boards/arm/olimexino_stm32/olimexino_stm32_defconfig
+++ b/boards/arm/olimexino_stm32/olimexino_stm32_defconfig
@@ -42,3 +42,6 @@ CONFIG_CLOCK_STM32F10X_AHB_PRESCALER=0
 # APB1 clock must not exceed 36MHz limit
 CONFIG_CLOCK_STM32F10X_APB1_PRESCALER=2
 CONFIG_CLOCK_STM32F10X_APB2_PRESCALER=0
+
+#enable DTS
+CONFIG_HAS_DTS=y