lib/rsa: Add Kconfig for devices supporting RSA Modular Exponentiation

[karo-tx-uboot.git] / lib / rsa / Kconfig

diff --git a/lib/rsa/Kconfig b/lib/rsa/Kconfig
new file mode 100644 (file)
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