diff --git a/target/board/mainline_sdk/BoardConfig.mk b/target/board/mainline_sdk/BoardConfig.mk
new file mode 100644
index 0000000..84f8b2d
--- /dev/null
+++ b/target/board/mainline_sdk/BoardConfig.mk
@@ -0,0 +1,20 @@
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+TARGET_ARCH_SUITE := mainline_sdk
+
+HOST_CROSS_OS := linux_bionic
+HOST_CROSS_ARCH := x86_64
+HOST_CROSS_2ND_ARCH :=
diff --git a/target/board/mainline_sdk/README.md b/target/board/mainline_sdk/README.md
new file mode 100644
index 0000000..714f797
--- /dev/null
+++ b/target/board/mainline_sdk/README.md
@@ -0,0 +1,2 @@
+This device is suitable for a soong-only build that builds for all the architectures
+needed for mainline modules sdk prebuilts.