fsl_sec: Add hardware accelerated SHA256 and SHA1
SHA-256 and SHA-1 accelerated using SEC hardware in Freescale SoC's
The driver for SEC (CAAM) IP is based on linux drivers/crypto/caam.
The platforms needto add the MACRO CONFIG_FSL_CAAM inorder to
enable initialization of this hardware IP.
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/drivers/crypto/fsl/fsl_hash.c b/drivers/crypto/fsl/fsl_hash.c
new file mode 100644
index 0000000..d77f257
--- /dev/null
+++ b/drivers/crypto/fsl/fsl_hash.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include "jobdesc.h"
+#include "desc.h"
+#include "jr.h"
+
+#define CRYPTO_MAX_ALG_NAME 80
+#define SHA1_DIGEST_SIZE 20
+#define SHA256_DIGEST_SIZE 32
+
+struct caam_hash_template {
+ char name[CRYPTO_MAX_ALG_NAME];
+ unsigned int digestsize;
+ u32 alg_type;
+};
+
+enum caam_hash_algos {
+ SHA1 = 0,
+ SHA256
+};
+
+static struct caam_hash_template driver_hash[] = {
+ {
+ .name = "sha1",
+ .digestsize = SHA1_DIGEST_SIZE,
+ .alg_type = OP_ALG_ALGSEL_SHA1,
+ },
+ {
+ .name = "sha256",
+ .digestsize = SHA256_DIGEST_SIZE,
+ .alg_type = OP_ALG_ALGSEL_SHA256,
+ },
+};
+
+int caam_hash(const unsigned char *pbuf, unsigned int buf_len,
+ unsigned char *pout, enum caam_hash_algos algo)
+{
+ int ret = 0;
+ uint32_t *desc;
+
+ desc = malloc(sizeof(int) * MAX_CAAM_DESCSIZE);
+ if (!desc) {
+ debug("Not enough memory for descriptor allocation\n");
+ return -1;
+ }
+
+ inline_cnstr_jobdesc_hash(desc, pbuf, buf_len, pout,
+ driver_hash[algo].alg_type,
+ driver_hash[algo].digestsize,
+ 0);
+
+ ret = run_descriptor_jr(desc);
+
+ free(desc);
+ return ret;
+}
+
+void hw_sha256(const unsigned char *pbuf, unsigned int buf_len,
+ unsigned char *pout, unsigned int chunk_size)
+{
+ if (caam_hash(pbuf, buf_len, pout, SHA256))
+ printf("CAAM was not setup properly or it is faulty\n");
+}
+
+void hw_sha1(const unsigned char *pbuf, unsigned int buf_len,
+ unsigned char *pout, unsigned int chunk_size)
+{
+ if (caam_hash(pbuf, buf_len, pout, SHA1))
+ printf("CAAM was not setup properly or it is faulty\n");
+}