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 (file)
--- a/README
+++ b/README
@@ -3269,6 +3269,11 @@ FIT uImage format:
                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
 

diff --git a/include/configs/dlvision-10g.h b/include/configs/dlvision-10g.h
index 2567a22..6153a40 100644 (file)
--- a/include/configs/dlvision-10g.h
+++ b/include/configs/dlvision-10g.h
@@ -40,6 +40,7 @@
 /* new uImage format support */
 #define CONFIG_FIT
 #define CONFIG_FIT_VERBOSE     /* enable fit_format_{error,warning}() */
+#define CONFIG_FIT_DISABLE_SHA256
 
 #define CONFIG_ENV_IS_IN_FLASH /* use FLASH for environment vars */
 

diff --git a/include/configs/io.h b/include/configs/io.h
index 649c0fb..8e32c25 100644 (file)
--- a/include/configs/io.h
+++ b/include/configs/io.h
@@ -40,6 +40,7 @@
 /* new uImage format support */
 #define CONFIG_FIT
 #define CONFIG_FIT_VERBOSE     /* enable fit_format_{error,warning}() */
+#define CONFIG_FIT_DISABLE_SHA256
 
 #define CONFIG_ENV_IS_IN_FLASH /* use FLASH for environment vars */
 

diff --git a/include/configs/iocon.h b/include/configs/iocon.h
index 35ba1bd..ae05bcb 100644 (file)
--- a/include/configs/iocon.h
+++ b/include/configs/iocon.h
@@ -39,6 +39,7 @@
 /* new uImage format support */
 #define CONFIG_FIT
 #define CONFIG_FIT_VERBOSE     /* enable fit_format_{error,warning}() */
+#define CONFIG_FIT_DISABLE_SHA256
 
 #define CONFIG_ENV_IS_IN_FLASH /* use FLASH for environment vars */
 

diff --git a/include/configs/neo.h b/include/configs/neo.h
index 75dc862..4937730 100644 (file)
--- a/include/configs/neo.h
+++ b/include/configs/neo.h
@@ -37,6 +37,7 @@
 /* new uImage format support */
 #define CONFIG_FIT
 #define CONFIG_FIT_VERBOSE     /* enable fit_format_{error,warning}() */
+#define CONFIG_FIT_DISABLE_SHA256
 
 #define CONFIG_ENV_IS_IN_FLASH /* use FLASH for environment vars */
 

diff --git a/include/image.h b/include/image.h
index 0a072f5..3e8f78d 100644 (file)
--- a/include/image.h
+++ b/include/image.h
@@ -72,6 +72,11 @@ struct lmb;
 #  define IMAGE_ENABLE_SHA256  1
 # endif
 
+#ifdef CONFIG_FIT_DISABLE_SHA256
+#undef CONFIG_SHA256
+#undef IMAGE_ENABLE_SHA256
+#endif
+
 #ifndef IMAGE_ENABLE_CRC32
 #define IMAGE_ENABLE_CRC32     0
 #endif