crypto: sl3516 - Add sl3516 crypto engine

The cortina/gemini SL3516 SoC has a crypto IP name either (crypto
engine/crypto acceleration engine in the datasheet).
It support many algorithms like [AES|DES|3DES][ECB|CBC], SHA1, MD5 and
some HMAC.

This patch adds the core files and support for ecb(aes) and the RNG.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/Kconfig

@@ -266,6 +266,25 @@ config CRYPTO_DEV_NIAGARA2
 	  Group, which can perform encryption, decryption, hashing,
 	  checksumming, and raw copies.
 
+config CRYPTO_DEV_SL3516
+	tristate "Stormlink SL3516 crypto offloader"
+	select CRYPTO_SKCIPHER
+	select CRYPTO_ENGINE
+	select CRYPTO_ECB
+	select CRYPTO_AES
+	select HW_RANDOM
+	help
+	  This option allows you to have support for SL3516 crypto offloader.
+
+config CRYPTO_DEV_SL3516_DEBUG
+	bool "Enable SL3516 stats"
+	depends on CRYPTO_DEV_SL3516
+	depends on DEBUG_FS
+	help
+	  Say y to enable SL3516 debug stats.
+	  This will create /sys/kernel/debug/sl3516/stats for displaying
+	  the number of requests per algorithm and other internal stats.
+
 config CRYPTO_DEV_HIFN_795X
 	tristate "Driver HIFN 795x crypto accelerator chips"
 	select CRYPTO_LIB_DES

drivers/crypto/Makefile

@@ -38,6 +38,7 @@ obj-$(CONFIG_CRYPTO_DEV_ROCKCHIP) += rockchip/
 obj-$(CONFIG_CRYPTO_DEV_S5P) += s5p-sss.o
 obj-$(CONFIG_CRYPTO_DEV_SA2UL) += sa2ul.o
 obj-$(CONFIG_CRYPTO_DEV_SAHARA) += sahara.o
+obj-$(CONFIG_CRYPTO_DEV_SL3516) += gemini/
 obj-$(CONFIG_ARCH_STM32) += stm32/
 obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o
 obj-$(CONFIG_CRYPTO_DEV_UX500) += ux500/

drivers/crypto/gemini/Makefile

@@ -0,0 +1,2 @@
+obj-$(CONFIG_CRYPTO_DEV_SL3516) += sl3516-ce.o
+sl3516-ce-y += sl3516-ce-core.o sl3516-ce-cipher.o sl3516-ce-rng.o