crypto: atmel-ecc - factor out code that can be shared
In preparation of adding support for the random number generator in
Atmel atsha204a devices, refactor the existing atmel-ecc driver (which
drives hardware that is closely related) so we can share the basic
I2C and command queuing routines.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 119ba07..2067484 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -519,9 +519,13 @@
To compile this driver as a module, choose M here: the module
will be called atmel-sha.
+config CRYPTO_DEV_ATMEL_I2C
+ tristate
+
config CRYPTO_DEV_ATMEL_ECC
tristate "Support for Microchip / Atmel ECC hw accelerator"
depends on I2C
+ select CRYPTO_DEV_ATMEL_I2C
select CRYPTO_ECDH
select CRC16
help