From: Kim Phillips <kim.phillips@freescale.com>
Date: Wed, 19 May 2010 09:21:53 +0000 (+1000)
Subject: crypto: talitos - add support for sha224
X-Git-Tag: v2.6.35-rc1~446^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=60f208d7836216885cdcd6f77a02f31dbc66f169;p=pandora-kernel.git

crypto: talitos - add support for sha224

SEC h/w versions 2.1 and above support sha224 via explicit instruction.

Performing sha224 ahashes on earlier versions is still possible because
they support sha256 (sha224 is sha256 with different initial constants
and a different truncation length).  We do this by overriding hardware
context self-initialization, and perform it manually in s/w instead.

Thanks to Lee for his fixes for correct execution on actual sec2.0 h/w.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off by: Lee Nipper <lee.nipper@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

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