[U-Boot] [PATCH 7/9] [v3] lib/rsa: Add Kconfig option for HW accelerated RSA

[Ruchika Gupta]

Kconfig option added for devices which support RSA Verification
(Modular Exponentiation) operation in hardware

Signed-off-by: Ruchika Gupta <ruchika.gupta at freescale.com>
CC: Simon Glass <sjg at chromium.org>
---
Changes in v3:
New patch

 lib/rsa/Kconfig | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/lib/rsa/Kconfig b/lib/rsa/Kconfig
index 8f9aa44..fc8a1e7 100644
--- a/lib/rsa/Kconfig
+++ b/lib/rsa/Kconfig
@@ -11,7 +11,7 @@ if RSA && DM_RSA
 
 config RSA_SW
 	bool "User driver Model for RSA Modular Exponentiation in software"
-	depends on DM && DM_RSA && RSA
+	depends on DM && DM_RSA && RSA && !RSA_HW
 	select RSA_MOD_EXP_SW
 	default y
 	help
@@ -20,6 +20,27 @@ config RSA_SW
 	  input.
 	  See doc/uImage.FIT/signature.txt for more details.
 
+menuconfig RSA_HW
+	bool "Use crypto devices to implement RSA Modular Exponentiation"
+	default y
+	help
+	  Say Y here to get to see options for hardware crypto devices and
+	  processors. This option alone does not enable the crypto device.
+
+	  If you say N,all options in this submenu will be skipped and disabled.
+
+if RSA_HW
+
+config FSL_RSA
+	bool "Implement RSA Modular Exponentiation with FSL crypto accelerator"
+	depends on DM && DM_RSA && RSA && FSL_CAAM
+	default y
+	help
+	  Enables driver for RSA modular exponentiation using Freescale's
+	  cryptographic accelerator - CAAM.
+
+endif
+
 endif
 
 config RSA_MOD_EXP_SW
-- 
1.8.1.4