crypto: axis - add ARTPEC-6/7 crypto accelerator driver

This is an asynchronous crypto API driver for the accelerator present
in the ARTPEC-6 and -7 SoCs from Axis Communications AB.

The driver supports AES in ECB/CTR/CBC/XTS/GCM modes and SHA1/2 hash
standards.

Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/Kconfig

@@ -708,4 +708,25 @@ config CRYPTO_DEV_SAFEXCEL
 	  chain mode, AES cipher mode and SHA1/SHA224/SHA256/SHA512 hash
 	  algorithms.
 
+config CRYPTO_DEV_ARTPEC6
+	tristate "Support for Axis ARTPEC-6/7 hardware crypto acceleration."
+	depends on ARM && (ARCH_ARTPEC || COMPILE_TEST)
+	depends on HAS_DMA
+	depends on OF
+	select CRYPTO_AEAD
+	select CRYPTO_AES
+	select CRYPTO_ALGAPI
+	select CRYPTO_BLKCIPHER
+	select CRYPTO_CTR
+	select CRYPTO_HASH
+	select CRYPTO_SHA1
+	select CRYPTO_SHA256
+	select CRYPTO_SHA384
+	select CRYPTO_SHA512
+	help
+	  Enables the driver for the on-chip crypto accelerator
+	  of Axis ARTPEC SoCs.
+
+	  To compile this driver as a module, choose M here.
+
 endif # CRYPTO_HW

drivers/crypto/Makefile

@@ -44,3 +44,4 @@ obj-$(CONFIG_CRYPTO_DEV_VIRTIO) += virtio/
 obj-$(CONFIG_CRYPTO_DEV_VMX) += vmx/
 obj-$(CONFIG_CRYPTO_DEV_BCM_SPU) += bcm/
 obj-$(CONFIG_CRYPTO_DEV_SAFEXCEL) += inside-secure/
+obj-$(CONFIG_CRYPTO_DEV_ARTPEC6) += axis/

drivers/crypto/axis/Makefile

@@ -0,0 +1 @@
+obj-$(CONFIG_CRYPTO_DEV_ARTPEC6) := artpec6_crypto.o