From 519d8b1a9d81be7e4ffad8aa6b0e3ea03984bb86 Mon Sep 17 00:00:00 2001 From: Tobias Rauter Date: Sun, 19 May 2013 21:59:38 +0200 Subject: crypto: dcp - Added support for Freescale's DCP co-processor This patch enables the DCP crypto functionality on imx28. Currently, only aes-128-cbc is supported. Moreover, the dcpboot misc-device, which is used by Freescale's SDK tools and uses a non-software-readable OTP-key, is added. Changes of v2: - ring buffer for hardware-descriptors - use of ablkcipher walk - OTP key encryption/decryption via misc-device (compatible to Freescale-SDK) - overall cleanup The DCP is also capable of sha1/sha256 but I won't be able to add that anytime soon. Tested with built-in runtime-self-test, tcrypt and openssl via cryptodev 1.6 on imx28-evk and a custom built imx28-board. Signed-off-by: Tobias Rauter Signed-off-by: Herbert Xu --- drivers/crypto/Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/crypto/Kconfig') diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 47c6f4dcc675..8ff7c230d82e 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -286,6 +286,16 @@ config CRYPTO_DEV_SAHARA This option enables support for the SAHARA HW crypto accelerator found in some Freescale i.MX chips. +config CRYPTO_DEV_DCP + tristate "Support for the DCP engine" + depends on ARCH_MXS && OF + select CRYPTO_BLKCIPHER + select CRYPTO_AES + select CRYPTO_CBC + help + This options enables support for the hardware crypto-acceleration + capabilities of the DCP co-processor + config CRYPTO_DEV_S5P tristate "Support for Samsung S5PV210 crypto accelerator" depends on ARCH_S5PV210 -- cgit 1.4.1