ataes132a: Adds a driver to support ATAES132A device

Adds a driver for Atmel Crypto Authorization solution
ATAES132A crypto device.

The driver supports the following functionality.

- AES CCM encryption, decryption and authentication
- AES ECB block operation.

The driver requires an I2C device to access crypto device registers.

Jira: ZEP-1387

Change-Id: I60aa8f3b069b703d4f83d866d28391625bb9ac13
Signed-off-by: Juan Manuel Cruz Alcaraz <[email protected]>

Author: jmnlcruz

drivers/crypto/Kconfig

@@ -1,21 +1,11 @@
 # Kconfig - Crypto configuration options
 #
+# Copyright (c) 2017 Intel Corporation
 #
-# Copyright (c) 2016 Intel Corporation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
 #
 
+
 #
 # CRYPTO options
 #
@@ -58,4 +48,20 @@ config CRYPTO_0_NAME
 	help
 	Device name for TinyCrypt Pseudo device.
 
+menuconfig ATAES132A
+	bool "Atmel ATAES132A 32k AES Serial EEPROM support"
+	depends on I2C && CRYPTO
+	default n
+	help
+	Enable Atmel ATAES132A 32k AES Serial EEPROM support.
+
+config CRYPTO_INIT_PRIORITY
+	int
+	depends on CRYPTO
+	prompt "Sensor init priority"
+	default 90
+	help
+	 Crypto devices initialization priority.
+
+source "drivers/crypto/Kconfig.ataes132a"
 endif # CRYPTO

drivers/crypto/Kconfig.ataes132a

@@ -0,0 +1,44 @@
+# Kconfig - Atmel ATAES132A configuration options
+
+#
+# Copyright (c) 2017 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+config ATAES132A_DRV_NAME
+	string "Driver's name"
+	depends on ATAES132A
+	default "ataes132a"
+	help
+	 Name for the ATAES132A driver wich will be used for binding.
+
+config ATAES132A_I2C_PORT_NAME
+	string "I2C master controller port name"
+	depends on ATAES132A
+	default "I2C_0"
+	help
+	 Master I2C port name through wich ATAES132A chip is accessed.
+
+config ATAES132A_I2C_ADDR
+	hex "ATAES132A I2C addess"
+	depends on ATAES132A
+	default 0x50
+	help
+	  ATAES132A chip's I2C address.
+
+choice
+	prompt "ATAES132A I2C bus speed"
+	default ATAES132A_I2C_SPEED_STANDARD
+	depends on ATAES132A
+
+config ATAES132A_I2C_SPEED_STANDARD
+	bool "Standard"
+	help
+	  Standard bis speed of up to 100KHz.
+
+config ATAES132A_I2C_SPEED_FAST
+	bool "Fast"
+	help
+	  Fast bus speed of up to 400KHz.
+endchoice

drivers/crypto/Makefile

@@ -1,4 +1,4 @@
 ccflags-y += -I${srctree}/ext/lib/crypto/tinycrypt/include
 
 obj-$(CONFIG_CRYPTO_TINYCRYPT_SHIM) += tc_shim.o
-
+obj-$(CONFIG_ATAES132A) += crypto_ataes132a.o