crypto: inside-secure - ecb(des) and cbc(des) support

This patch adds support for two algorithms in the Inside Secure SafeXcel
cryptographic engine driver: ecb(des) and cbc(des).
Signed-off-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/Kconfig

@@ -689,6 +689,7 @@ config CRYPTO_DEV_SAFEXCEL
 	select CRYPTO_AES
 	select CRYPTO_AUTHENC
 	select CRYPTO_BLKCIPHER
+	select CRYPTO_DES
 	select CRYPTO_HASH
 	select CRYPTO_HMAC
 	select CRYPTO_MD5

drivers/crypto/inside-secure/safexcel.c

@@ -405,6 +405,7 @@ static int safexcel_hw_init(struct safexcel_crypto_priv *priv)
 		val = EIP197_FUNCTION_RSVD;
 		val |= EIP197_PROTOCOL_ENCRYPT_ONLY | EIP197_PROTOCOL_HASH_ONLY;
 		val |= EIP197_PROTOCOL_ENCRYPT_HASH | EIP197_PROTOCOL_HASH_DECRYPT;
+		val |= EIP197_ALG_DES_ECB | EIP197_ALG_DES_CBC;
 		val |= EIP197_ALG_AES_ECB | EIP197_ALG_AES_CBC;
 		val |= EIP197_ALG_MD5 | EIP197_ALG_HMAC_MD5;
 		val |= EIP197_ALG_SHA1 | EIP197_ALG_HMAC_SHA1;
@@ -840,6 +841,8 @@ static int safexcel_request_ring_irq(struct platform_device *pdev, const char *n
 }
 
 static struct safexcel_alg_template *safexcel_algs[] = {
+	&safexcel_alg_ecb_des,
+	&safexcel_alg_cbc_des,
 	&safexcel_alg_ecb_aes,
 	&safexcel_alg_cbc_aes,
 	&safexcel_alg_md5,

drivers/crypto/inside-secure/safexcel.h

@@ -311,6 +311,7 @@ struct safexcel_context_record {
 #define CONTEXT_CONTROL_NO_FINISH_HASH		BIT(5)
 #define CONTEXT_CONTROL_SIZE(n)			((n) << 8)
 #define CONTEXT_CONTROL_KEY_EN			BIT(16)
+#define CONTEXT_CONTROL_CRYPTO_ALG_DES		(0x0 << 17)
 #define CONTEXT_CONTROL_CRYPTO_ALG_AES128	(0x5 << 17)
 #define CONTEXT_CONTROL_CRYPTO_ALG_AES192	(0x6 << 17)
 #define CONTEXT_CONTROL_CRYPTO_ALG_AES256	(0x7 << 17)
@@ -470,6 +471,7 @@ struct safexcel_control_data_desc {
 #define EIP197_OPTION_MAGIC_VALUE	BIT(0)
 #define EIP197_OPTION_64BIT_CTX		BIT(1)
 #define EIP197_OPTION_CTX_CTRL_IN_CMD	BIT(8)
+#define EIP197_OPTION_2_TOKEN_IV_CMD	GENMASK(11, 10)
 #define EIP197_OPTION_4_TOKEN_IV_CMD	GENMASK(11, 9)
 
 #define EIP197_TYPE_EXTENDED		0x3
@@ -690,6 +692,8 @@ int safexcel_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen,
 			 void *istate, void *ostate);
 
 /* available algorithms */
+extern struct safexcel_alg_template safexcel_alg_ecb_des;
+extern struct safexcel_alg_template safexcel_alg_cbc_des;
 extern struct safexcel_alg_template safexcel_alg_ecb_aes;
 extern struct safexcel_alg_template safexcel_alg_cbc_aes;
 extern struct safexcel_alg_template safexcel_alg_md5;