• Tobias Rauter's avatar
    crypto: dcp - Added support for Freescale's DCP co-processor · 519d8b1a
    Tobias Rauter authored
    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: default avatarTobias Rauter <tobias.rauter@gmail.com>
    Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
    519d8b1a
imx28.dtsi 24.9 KB