FIT: Modify option FIT_SIGNATURE in Kconfig

For FIT signature based approach to work, RSA library needs to be selected.
The FIT_SIGNATURE option in Kconfig is modified to automatically select RSA.
Selecting RSA compiles the RSA library required for image verification.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

diff --git a/Kconfig b/Kconfig
index 4157da3..fed488f 100644 (file)
--- a/Kconfig
+++ b/Kconfig
@@ -116,8 +116,9 @@ config FIT_VERBOSE
        depends on FIT
 
 config FIT_SIGNATURE
-       bool "Enabel signature verification of FIT uImages"
+       bool "Enable signature verification of FIT uImages"
        depends on FIT
+       select RSA
        help
          This option enables signature verification of FIT uImages,
          using a hash signed and verified using RSA.

diff --git a/lib/Kconfig b/lib/Kconfig
index 8460439..79b91b7 100644 (file)
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -27,4 +27,11 @@ config SYS_HZ
          get_timer() must operate in milliseconds and this option must be
          set to 1000.
 
+config RSA
+       bool "Use RSA Library"
+       help
+         RSA support. This enables the RSA algorithm used for FIT image
+         verification in U-Boot.
+         See doc/uImage.FIT/signature.txt for more details.
+
 endmenu