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-rw-r--r--README7
1 files changed, 6 insertions, 1 deletions
diff --git a/README b/README
index a11e74aff1b..a28ff133ee0 100644
--- a/README
+++ b/README
@@ -3176,8 +3176,13 @@ CBFS (Coreboot Filesystem) support
This enables the RSA algorithm used for FIT image verification
in U-Boot. See doc/uImage.FIT/signature.txt for more information.
+ 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.
+ option. The software based modular exponentiation is built into
+ mkimage irrespective of this option.
- bootcount support:
CONFIG_BOOTCOUNT_LIMIT