From 79b3a418e090248d00ceba40b81da9dfac753367 Mon Sep 17 00:00:00 2001
From: Lee Nipper <lee.nipper@gmail.com>
Date: Mon, 21 Nov 2011 16:13:25 +0800
Subject: [PATCH] crypto: talitos - add hmac algorithms

Add these hmac algorithms to talitos:
    hmac(md5),
    hmac(sha1),
    hmac(sha224),
    hmac(sha256),
    hmac(sha384),
    hmac(sha512).
These are all type ahash.

Signed-off-by: Lee Nipper <lee.nipper@gmail.com>

Fixed up to not register HMAC algorithms on sec2.0 devices.
Rationale (from Lee):

on an 8349E Rev1.1, there's a problem with hmac for any talitos
hmac sequence requiring an intermediate hash context (Pointer
DWORD 1); the result is an incorrect hmac.  An intermediate hash
context is required for something longer than (65536-blocksize),
and for other cases when update/finup/final are used inefficiently.
Interestingly, a normal hash (without hmac) works perfectly
when using an intermediate context.

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