Revert "GCC: Upgrade to version 9.2-2019.12 of toolchain"
This reverts commit de9bf1d8a2de952bfc17cdf7082b41f9c185e54d.
Change-Id: Iebb6297ce290a10ee850bf6a9c71e7eb530b085f
diff --git a/docs/getting_started/prerequisites.rst b/docs/getting_started/prerequisites.rst
index 3e0c8ff..27ad0ed 100644
--- a/docs/getting_started/prerequisites.rst
+++ b/docs/getting_started/prerequisites.rst
@@ -26,7 +26,7 @@
|TF-A| can be built with any of the following *cross-compiler* toolchains that
target the Armv7-A or Armv8-A architectures:
-- GCC >= 9.2-2019.12 (from the `Arm Developer website`_)
+- GCC >= 8.3-2019.03 (from the `Arm Developer website`_)
- Clang >= 4.0
- Arm Compiler >= 6.0