build_macros: Add mechanism to prevent bin generation.
On certain platforms it does not make sense to generate
TF-A binary images. For example a platform could make use of serveral
memory areas, which are non-continuous and the resulting binary
therefore would suffer from the padding-bytes.
Typically these platforms use the ELF image.
This patch introduces a variable DISABLE_BIN_GENERATION, which
can be set to '1' in the platform makefile to prevent the binary
generation.
Signed-off-by: Christoph Müllner <christophm30@gmail.com>
Change-Id: I62948e88bab685bb055fe6167d9660d14e604462
diff --git a/docs/user-guide.rst b/docs/user-guide.rst
index 01cf17a..2a21bd2 100644
--- a/docs/user-guide.rst
+++ b/docs/user-guide.rst
@@ -369,6 +369,10 @@
- ``DEBUG``: Chooses between a debug and release build. It can take either 0
(release) or 1 (debug) as values. 0 is the default.
+- ``DISABLE_BIN_GENERATION``: Boolean option to disable the generation
+ of the binary image. If set to 1, then only the ELF image is built.
+ 0 is the default.
+
- ``DYN_DISABLE_AUTH``: Provides the capability to dynamically disable Trusted
Board Boot authentication at runtime. This option is meant to be enabled only
for development platforms. ``TRUSTED_BOARD_BOOT`` flag must be set if this