From 618df7f4726f94a2f07fc6305caa33dd4a2cb308 Mon Sep 17 00:00:00 2001
From: Winston Hudson <winston.h.hudson@freescale.com>
Date: Mon, 17 Nov 2014 10:17:35 -0700
Subject: [PATCH] MLK-9769-19 Add ARC4-ECB support for CAAM in i.MX6 family
Adds ARC4-ECB Mode support to the CAAM crypto accelerator core in
the i.MX6 family of SoC devices.
Note that CAAM also goes by sec-4.0 or sec-5.0 in other product families (such as QorIQ).
Thus the property names are often tied to the sec-4.0+ nomenclature.
Signed-off-by: Winston Hudson (b45308) <winston.h.hudson@freescale.com>
Signed-off-by: Dan Douglass <dan.douglass@freescale.com>
---
drivers/crypto/caam/caamalg.c | 17 +++++++++++++++++
drivers/crypto/caam/desc.h | 4 ++++
2 files changed, 21 insertions(+)
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index a59d8ca12ab9fb..bd299f1a10e9ea 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -1962,6 +1962,23 @@ static struct caam_alg_template driver_algs[] = {
},
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_XTS,
},
+ {
+ .name = "ecb(arc4)",
+ .driver_name = "ecb-arc4-caam",
+ .blocksize = ARC4_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_ABLKCIPHER,
+ .template_ablkcipher = {
+ .setkey = ablkcipher_setkey,
+ .encrypt = ablkcipher_encrypt,
+ .decrypt = ablkcipher_decrypt,
+ .geniv = "eseqiv",
+ .min_keysize = ARC4_MIN_KEY_SIZE,
+ .max_keysize = ARC4_MAX_KEY_SIZE,
+ .ivsize = ARC4_BLOCK_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_ARC4 | OP_ALG_AAI_ECB
+ },
+
};
static struct caam_aead_alg driver_aeads[] = {
diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h
index 1420f49515b6fd..2ceeaadaa53e2e 100644
--- a/drivers/crypto/caam/desc.h
+++ b/drivers/crypto/caam/desc.h
@@ -1645,4 +1645,8 @@
/* Frame Descriptor Command for Replacement Job Descriptor */
#define FD_CMD_REPLACE_JOB_DESC 0x20000000
+#define ARC4_BLOCK_SIZE 1
+#define ARC4_MAX_KEY_SIZE 256
+#define ARC4_MIN_KEY_SIZE 1
+
#endif /* DESC_H */
--
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