diff --git a/boards/boards_legacy/arm64/index.rst b/boards/boards_legacy/arm64/index.rst
deleted file mode 100644
index e7dbb2d6842..00000000000
--- a/boards/boards_legacy/arm64/index.rst
+++ /dev/null
@@ -1,10 +0,0 @@
-.. _boards-arm64:
-
-ARM64 Boards
-############
-
-.. toctree::
-   :maxdepth: 1
-   :glob:
-
-   **/index
diff --git a/soc/soc_legacy/arm64/CMakeLists.txt b/soc/soc_legacy/arm64/CMakeLists.txt
deleted file mode 100644
index b826da926ca..00000000000
--- a/soc/soc_legacy/arm64/CMakeLists.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-
-if(SOC_FAMILY)
-  add_subdirectory(${SOC_FAMILY})
-else()
-  add_subdirectory(${SOC_NAME})
-endif()
diff --git a/soc/soc_legacy/arm64/Kconfig b/soc/soc_legacy/arm64/Kconfig
deleted file mode 100644
index a24f8b35034..00000000000
--- a/soc/soc_legacy/arm64/Kconfig
+++ /dev/null
@@ -1,11 +0,0 @@
-# General options signifying CPU capabilities of ARM64 SoCs
-
-# Copyright (c) 2018 Nordic Semiconductor ASA.
-# SPDX-License-Identifier: Apache-2.0
-
-config SOC_PART_NUMBER
-	string
-	help
-	  This string holds the full part number of the SoC. It is a hidden option
-	  that you should not set directly. The part number selection choice defines
-	  the default value for this string.