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+Prerequisites & Requirements
+============================
+
+This document describes the software and hardware requiremnts for building TF-A
+Tests for AArch32 and AArch64 target platforms.
+
+It may be possible to build TF-A Tests with combinations of software and
+hardware that are different from those listed below. The software and hardware
+described in this document are officially supported.
+
+Build Host
+----------
+
+TF-A Tests may be built using a Linux build host machine with a recent Linux
+distribution. We have performed tests using Ubuntu 16.04 LTS (64-bit), but other
+distributions should also work fine, provided that the tools and libraries
+can be installed.
+
+Toolchain
+---------
+
+Install the required packages to build TF-A Tests with the following command:
+
+::
+
+    sudo apt-get install device-tree-compiler build-essential make git perl libxml-libxml-perl
+
+Download and install the GNU cross-toolchain from Linaro. The TF-A Tests have
+been tested with version 9.2-2019.12 (gcc 9.2):
+
+-  `GCC cross-toolchain`_
+
+In addition, the following optional packages and tools may be needed:
+
+-   For debugging, Arm `Development Studio 5 (DS-5)`_.
+
+.. _GCC cross-toolchain: https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads
+.. _Development Studio 5 (DS-5): https://developer.arm.com/products/software-development-tools/ds-5-development-studio
+
+--------------
+
+*Copyright (c) 2019, Arm Limited. All rights reserved.*