lib/rsa: Add Kconfig for devices supporting RSA Modular Exponentiation
Kconfig option added for devices which support RSA Verification.
1. RSA_SOFTWARE_EXP
Enables driver for supporting RSA Modular Exponentiation in Software
2. RSA_FREESCALE_EXP
Enables driver for supporting RSA Modular Exponentiation using Freescale specific
driver
The above drivers use RSA uclass
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
(Removed duplicate line in Kconfig comment)
Change-Id: I7663c4d5350e2bfc3dfa2696f70ef777d6ccc6f6
diff --git a/lib/Kconfig b/lib/Kconfig
index 79b91b7..a1f30a2 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -27,11 +27,6 @@
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.
+source lib/rsa/Kconfig
endmenu
diff --git a/lib/rsa/Kconfig b/lib/rsa/Kconfig
new file mode 100644
index 0000000..1268a1b
--- /dev/null
+++ b/lib/rsa/Kconfig
@@ -0,0 +1,27 @@
+config RSA
+ bool "Use RSA Library"
+ select RSA_FREESCALE_EXP if FSL_CAAM
+ select RSA_SOFTWARE_EXP if !RSA_FREESCALE_EXP
+ 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.
+
+if RSA
+config RSA_SOFTWARE_EXP
+ bool "Enable driver for RSA Modular Exponentiation in software"
+ depends on DM && RSA
+ help
+ Enables driver for modular exponentiation in software. This is a RSA
+ algorithm used in FIT image verification. It required RSA Key as
+ input.
+ See doc/uImage.FIT/signature.txt for more details.
+
+config RSA_FREESCALE_EXP
+ bool "Enable RSA Modular Exponentiation with FSL crypto accelerator"
+ depends on DM && RSA && FSL_CAAM
+ help
+ Enables driver for RSA modular exponentiation using Freescale cryptographic
+ accelerator - CAAM.
+
+endif