crypto: driver for Tegra AES hardware

driver supports ecb/cbc/ofb/ansi_x9.31rng modes,
128, 192 and 256-bit key sizes

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 6d16b4b..e707979 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -293,4 +293,15 @@
 	  Select this to offload Samsung S5PV210 or S5PC110 from AES
 	  algorithms execution.
 
+config CRYPTO_DEV_TEGRA_AES
+	tristate "Support for TEGRA AES hw engine"
+	depends on ARCH_TEGRA
+	select CRYPTO_AES
+	help
+	  TEGRA processors have AES module accelerator. Select this if you
+	  want to use the TEGRA module for AES algorithms.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called tegra-aes.
+
 endif # CRYPTO_HW