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

Ruchika Gupta
2014-12-23T11:32:57Z

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

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
CC: Simon Glass <sjg@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