diff --git a/mailbox/Kconfig b/mailbox/Kconfig
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--- /dev/null
+++ b/mailbox/Kconfig
@@ -0,0 +1,29 @@
+#
+# (C) COPYRIGHT 2020 ARM Limited. All rights reserved.
+#
+# This program is free software and is provided to you under the terms of the
+# GNU General Public License version 2 as published by the Free Software
+# Foundation, and any use by you of this program is subject to the terms
+# of such GNU licence.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, you can access it online at
+# http://www.gnu.org/licenses/gpl-2.0.html.
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+config ARM_MHU
+        tristate "ARM MHU Mailbox"
+        depends on ARM_AMBA
+        help
+          Say Y here if you want to build the ARM MHU controller driver.
+          The controller has support for two versions of the controller.
+	  One with 3 mailbox channels, the last of which can be
+          used in Secure mode only and one with a single channel.
+