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Commit 15b59e7c authored by Marek Vasut's avatar Marek Vasut Committed by Herbert Xu
Browse files

crypto: mxs - Add Freescale MXS DCP driver 



Add support for the MXS DCP block. The driver currently supports
SHA-1/SHA-256 hashing and AES-128 CBC/ECB modes. The non-standard
CRC32 is not yet supported.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent c493c044

Documentation/devicetree/bindings/crypto/fsl-dcp.txt

0 → 100644
+17 −0
Original line number Diff line number Diff line 
Freescale DCP (Data Co-Processor) found on i.MX23/i.MX28 .



Required properties:

- compatible : Should be "fsl,<soc>-dcp"

- reg : Should contain MXS DCP registers location and length

- interrupts : Should contain MXS DCP interrupt numbers, VMI IRQ and DCP IRQ

               must be supplied, optionally Secure IRQ can be present, but

	       is currently not implemented and not used.



Example:



dcp@80028000 {

	compatible = "fsl,imx28-dcp", "fsl,imx23-dcp";

	reg = <0x80028000 0x2000>;

	interrupts = <52 53>;

	status = "okay";

};

drivers/crypto/Kconfig

+17 −0
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@@ -401,4 +401,21 @@ if CRYPTO_DEV_CCP 
	source "drivers/crypto/ccp/Kconfig"

endif



config CRYPTO_DEV_MXS_DCP

	tristate "Support for Freescale MXS DCP"

	depends on ARCH_MXS

	select CRYPTO_SHA1

	select CRYPTO_SHA256

	select CRYPTO_CBC

	select CRYPTO_ECB

	select CRYPTO_AES

	select CRYPTO_BLKCIPHER

	select CRYPTO_ALGAPI

	help

	  The Freescale i.MX23/i.MX28 has SHA1/SHA256 and AES128 CBC/ECB

	  co-processor on the die.



	  To compile this driver as a module, choose M here: the module

	  will be called mxs-dcp.



endif # CRYPTO_HW

drivers/crypto/Makefile

+1 −0
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@@ -22,3 +22,4 @@ obj-$(CONFIG_CRYPTO_DEV_ATMEL_AES) += atmel-aes.o 
obj-$(CONFIG_CRYPTO_DEV_ATMEL_TDES) += atmel-tdes.o

obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA) += atmel-sha.o

obj-$(CONFIG_CRYPTO_DEV_CCP) += ccp/

obj-$(CONFIG_CRYPTO_DEV_MXS_DCP) += mxs-dcp.o