Add license, readme and dco files
Signed-off-by: David Wang <david.wang@arm.com>
Change-Id: I5f048985ac4a0d32f27d100f4af1a6c0375cb54e
diff --git a/dco.txt b/dco.txt
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+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+1 Letterman Drive
+Suite D4700
+San Francisco, CA, 94129
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+ have the right to submit it under the open source license
+ indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+ of my knowledge, is covered under an appropriate open source
+ license and I have the right under that license to submit that
+ work with modifications, whether created in whole or in part
+ by me, under the same open source license (unless I am
+ permitted to submit under a different license), as indicated
+ in the file; or
+
+(c) The contribution was provided directly to me by some other
+ person who certified (a), (b) or (c) and I have not modified
+ it.
+
+(d) I understand and agree that this project and the contribution
+ are public and that a record of the contribution (including all
+ personal information I submit with it, including my sign-off) is
+ maintained indefinitely and may be redistributed consistent with
+ this project or the open source license(s) involved.
diff --git a/license.rst b/license.rst
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+Copyright (c) 2021, Arm Limited. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+- Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright notice, this
+ list of conditions and the following disclaimer in the documentation and/or
+ other materials provided with the distribution.
+- Neither the name of ARM nor the names of its contributors may be used to
+ endorse or promote products derived from this software without specific prior
+ written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+---
+
+.. note::
+ Individual files contain the following tag instead of the full license text.
+
+
+
+ SPDX-License-Identifier: BSD-3-Clause
+
+This enables machine processing of license information based on the SPDX
+License Identifiers that are here available: http://spdx.org/licenses/
diff --git a/readme.rst b/readme.rst
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+#########################
+Trusted Firmware-M Extras
+#########################
+
+The Trusted Firmware-M (TF-M) Extras repository is the extension of the TF-M
+main repository to host the examples, demonstrations, third-party modules,
+thrid-party secure partitions, etc.
+
+*******
+License
+*******
+
+The default license of new source code in this repository is :doc:`BSD-3 <license>`.
+
+Some source files are contributed by the third-parties or derived from the
+external projects. A license file should be included in the root folder of these
+source files if it has a different licence.
+
+****************
+Folder Structure
+****************
+
+- examples - This foloder hosts the examples and demos for TF-M.
+- partitions - This folder hosts the supplementary or third-party secure
+partitions for TF-M.
+
+*****************************
+Contribute to this repository
+*****************************
+
+The `contributing process <https://tf-m-user-guide.trustedfirmware.org/docs/contributing/contributing_process.html>`_ is same as TF-M main repository.
+
+*Copyright (c) 2021, Arm Limited. All rights reserved.*