fit: make sha256 support optional
sha256 has some beefy memory footprint.
Make it optional for constrained systems.
Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
diff --git a/README b/README
index 082bd2a..4ac7399 100644
--- a/README
+++ b/README
@@ -3269,6 +3269,11 @@
disabled. If a board need legacy image format support
enable this through CONFIG_IMAGE_FORMAT_LEGACY
+ CONFIG_FIT_DISABLE_SHA256
+ Supporting SHA256 hashes has quite an impact on binary size.
+ For constrained systems sha256 hash support can be disabled
+ with this option.
+
- Standalone program support:
CONFIG_STANDALONE_LOAD_ADDR