From: Dirk Eibach dirk.eibach@gdsys.cc
sha256 has some beefy memory footprint. Make it optional for constrained systems.
Signed-off-by: Dirk Eibach dirk.eibach@gdsys.cc ---
Changes in v4: - describe CONFIG_FIT_DISABLE_SHA256 in README
Changes in v3: None Changes in v2: - make sha256 support optional
README | 5 +++++ include/configs/dlvision-10g.h | 1 + include/configs/io.h | 1 + include/configs/iocon.h | 1 + include/configs/neo.h | 1 + include/image.h | 5 +++++ 6 files changed, 14 insertions(+)
diff --git a/README b/README index 1fc8f00..61c66cb 100644 --- a/README +++ b/README @@ -3249,6 +3249,11 @@ 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 --- 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 --- 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 --- 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 --- 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 b71e4ba..61d5885 100644 --- 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