crypto/fsl - Add progressive hashing support using hardware acceleration.

Currently only normal hashing is supported using hardware acceleration.
Added support for progressive hashing using hardware.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Gaurav Rana <gaurav.rana@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <yorksun@freescale.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/drivers/crypto/fsl/fsl_hash.h b/drivers/crypto/fsl/fsl_hash.h
new file mode 100644
index 0000000000..f5be651d7a
--- /dev/null
+++ b/drivers/crypto/fsl/fsl_hash.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ */
+
+#ifndef _SHA_H
+#define _SHA_H
+
+#include <fsl_sec.h>
+#include <hash.h>
+#include "jr.h"
+
+/* We support at most 32 Scatter/Gather Entries.*/
+#define MAX_SG_32	32
+
+/*
+ * Hash context contains the following fields
+ * @sha_desc: Sha Descriptor
+ * @sg_num: number of entries in sg table
+ * @len: total length of buffer
+ * @sg_tbl: sg entry table
+ * @hash: index to the hash calculated
+ */
+struct sha_ctx {
+	uint32_t sha_desc[64];
+	uint32_t sg_num;
+	uint32_t len;
+	struct sg_entry sg_tbl[MAX_SG_32];
+	u8 hash[HASH_MAX_DIGEST_SIZE];
+};
+
+#endif