diff --git a/boards/Kconfig b/boards/Kconfig
index 994f50a98f8..5a0adb67ea5 100644
--- a/boards/Kconfig
+++ b/boards/Kconfig
@@ -9,6 +9,14 @@ config BOARD
 	  if not found we look for the linker file in
 	  soc/<arch>/<family>/<series>
 
+config BOARD_REVISION
+	def_string "$BOARD_REVISION"
+	help
+	  If the BOARD has a revision field set, this is the revision.
+	  Otherwise, it is the empty string. For example, if BOARD is
+	  "plank@foo", this option will be "foo". If BOARD is "plank",
+	  this option will be the empty string.
+
 config BOARD_DEPRECATED_RELEASE
 	string
 	help
diff --git a/cmake/modules/kconfig.cmake b/cmake/modules/kconfig.cmake
index f545632ae47..e13ac293f33 100644
--- a/cmake/modules/kconfig.cmake
+++ b/cmake/modules/kconfig.cmake
@@ -115,6 +115,7 @@ set(COMMON_KCONFIG_ENV_SETTINGS
   ARCH=${ARCH}
   ARCH_DIR=${ARCH_DIR}
   BOARD_DIR=${BOARD_DIR}
+  BOARD_REVISION=${BOARD_REVISION}
   KCONFIG_BINARY_DIR=${KCONFIG_BINARY_DIR}
   ZEPHYR_TOOLCHAIN_VARIANT=${ZEPHYR_TOOLCHAIN_VARIANT}
   TOOLCHAIN_KCONFIG_DIR=${TOOLCHAIN_KCONFIG_DIR}