sparc64: Add SHA224/SHA256 driver making use of the 'sha256' instruction.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 167c856..4782d84 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -454,6 +454,15 @@
 	  This code also includes SHA-224, a 224 bit hash with 112 bits
 	  of security against collision attacks.
 
+config CRYPTO_SHA256_SPARC64
+	tristate "SHA224 and SHA256 digest algorithm (SPARC64)"
+	depends on SPARC64
+	select CRYPTO_SHA256
+	select CRYPTO_HASH
+	help
+	  SHA-256 secure hash standard (DFIPS 180-2) implemented
+	  using sparc64 crypto instructions, when available.
+
 config CRYPTO_SHA512
 	tristate "SHA384 and SHA512 digest algorithms"
 	select CRYPTO_HASH