DTC: Add recommended device tree compiler version

Change-Id: Ice87052e41a24b0ede5610467e12941ae1d886e0
Signed-off-by: Sathees Balya <sathees.balya@arm.com>

diff --git a/docs/user-guide.rst b/docs/user-guide.rst
index 2b90bece84a82dc84d214aec37bcb7bdeab228b6..46370ce087d49cfc37e5db92abe4e8a3aef9233f 100644 (file)
--- a/docs/user-guide.rst
+++ b/docs/user-guide.rst
@@ -67,8 +67,9 @@ Compiler 6. See instructions below on how to switch the default compiler.
 
 In addition, the following optional packages and tools may be needed:
 
--  ``device-tree-compiler`` package if you need to rebuild the Flattened Device
-   Tree (FDT) source files (``.dts`` files) provided with this software.
+-  ``device-tree-compiler`` (dtc) package if you need to rebuild the Flattened Device
+   Tree (FDT) source files (``.dts`` files) provided with this software. The
+   version of dtc must be 1.4.6 or above.
 
 -  For debugging, Arm `Development Studio 5 (DS-5)`_.