diff --git a/boards/boards_legacy/arm/stm32l1_disco/Kconfig.defconfig b/boards/boards_legacy/arm/stm32l1_disco/Kconfig.defconfig
deleted file mode 100644
index 8159f9c1abbe..000000000000
--- a/boards/boards_legacy/arm/stm32l1_disco/Kconfig.defconfig
+++ /dev/null
@@ -1,11 +0,0 @@
-# Board configuration
-
-# Copyright (c) 2019 eTactica ehf
-# SPDX-License-Identifier: Apache-2.0
-
-if BOARD_STM32L1_DISCO
-
-config BOARD
-	default "stm32l1_disco"
-
-endif # BOARD_STM32L1_DISCO
diff --git a/boards/boards_legacy/arm/stm32l1_disco/Kconfig.board b/boards/st/stm32l1_disco/Kconfig.stm32l1_disco
similarity index 51%
rename from boards/boards_legacy/arm/stm32l1_disco/Kconfig.board
rename to boards/st/stm32l1_disco/Kconfig.stm32l1_disco
index e9621b560b07..9e1e0bb01a45 100644
--- a/boards/boards_legacy/arm/stm32l1_disco/Kconfig.board
+++ b/boards/st/stm32l1_disco/Kconfig.stm32l1_disco
@@ -1,8 +1,5 @@
-# Board configuration
-
 # Copyright (c) 2019 eTactica ehf
 # SPDX-License-Identifier: Apache-2.0
 
 config BOARD_STM32L1_DISCO
-	bool "STM32L1DISCOVERY Development Board"
-	depends on SOC_STM32L151XB
+	select SOC_STM32L151XB
diff --git a/boards/boards_legacy/arm/stm32l1_disco/board.cmake b/boards/st/stm32l1_disco/board.cmake
similarity index 100%
rename from boards/boards_legacy/arm/stm32l1_disco/board.cmake
rename to boards/st/stm32l1_disco/board.cmake
diff --git a/boards/st/stm32l1_disco/board.yml b/boards/st/stm32l1_disco/board.yml
new file mode 100644
index 000000000000..bdca72bf5481
--- /dev/null
+++ b/boards/st/stm32l1_disco/board.yml
@@ -0,0 +1,5 @@
+board:
+  name: stm32l1_disco
+  vendor: st
+  socs:
+    - name: stm32l151xb
diff --git a/boards/boards_legacy/arm/stm32l1_disco/doc/img/stm32l1_disco.jpg b/boards/st/stm32l1_disco/doc/img/stm32l1_disco.jpg
similarity index 100%
rename from boards/boards_legacy/arm/stm32l1_disco/doc/img/stm32l1_disco.jpg
rename to boards/st/stm32l1_disco/doc/img/stm32l1_disco.jpg
diff --git a/boards/boards_legacy/arm/stm32l1_disco/doc/index.rst b/boards/st/stm32l1_disco/doc/index.rst
similarity index 100%
rename from boards/boards_legacy/arm/stm32l1_disco/doc/index.rst
rename to boards/st/stm32l1_disco/doc/index.rst
diff --git a/boards/boards_legacy/arm/stm32l1_disco/stm32l1_disco.dts b/boards/st/stm32l1_disco/stm32l1_disco.dts
similarity index 100%
rename from boards/boards_legacy/arm/stm32l1_disco/stm32l1_disco.dts
rename to boards/st/stm32l1_disco/stm32l1_disco.dts
diff --git a/boards/boards_legacy/arm/stm32l1_disco/stm32l1_disco.yaml b/boards/st/stm32l1_disco/stm32l1_disco.yaml
similarity index 100%
rename from boards/boards_legacy/arm/stm32l1_disco/stm32l1_disco.yaml
rename to boards/st/stm32l1_disco/stm32l1_disco.yaml
diff --git a/boards/boards_legacy/arm/stm32l1_disco/stm32l1_disco_defconfig b/boards/st/stm32l1_disco/stm32l1_disco_defconfig
similarity index 81%
rename from boards/boards_legacy/arm/stm32l1_disco/stm32l1_disco_defconfig
rename to boards/st/stm32l1_disco/stm32l1_disco_defconfig
index dfbf82011e57..fd0afcb9d74c 100644
--- a/boards/boards_legacy/arm/stm32l1_disco/stm32l1_disco_defconfig
+++ b/boards/st/stm32l1_disco/stm32l1_disco_defconfig
@@ -1,8 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_STM32L1X=y
-CONFIG_SOC_STM32L151XB=y
-
 # enable uart driver
 CONFIG_SERIAL=y
 
diff --git a/boards/boards_legacy/arm/stm32l1_disco/support/openocd.cfg b/boards/st/stm32l1_disco/support/openocd.cfg
similarity index 100%
rename from boards/boards_legacy/arm/stm32l1_disco/support/openocd.cfg
rename to boards/st/stm32l1_disco/support/openocd.cfg