Kconfig: Move CONFIG_FIT and related options to Kconfig

[platform/kernel/u-boot.git] / lib / rsa / Kconfig

diff --git a/lib/rsa/Kconfig b/lib/rsa/Kconfig
index 1268a1b..86df0a0 100644 (file)
--- a/lib/rsa/Kconfig
+++ b/lib/rsa/Kconfig
@@ -6,6 +6,12 @@ config RSA
          RSA support. This enables the RSA algorithm used for FIT image
          verification in U-Boot.
          See doc/uImage.FIT/signature.txt for more details.
+         The Modular Exponentiation algorithm in RSA is implemented using
+         driver model. So CONFIG_DM needs to be enabled by default for this
+         library to function.
+         The signing part is build into mkimage regardless of this
+         option. The software based modular exponentiation is built into
+         mkimage irrespective of this option.
 
 if RSA
 config RSA_SOFTWARE_EXP