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Commit c493c044 authored by Marek Vasut's avatar Marek Vasut Committed by Herbert Xu
Browse files

crypto: mxs - Remove the old DCP driver 



Remove the old DCP driver as it had multiple severe issues. The driver
will be replaced by a more robust implementation. Here is a short list
of problems with this driver:

1) It only supports AES_CBC
2) The driver was apparently never ran behind anyone working with MXS. ie.:
   -> Restarting the DCP block is not done via mxs_reset_block()
   -> The DT name is not "fsl,dcp" or "fsl,mxs-dcp" as other MXS drivers
3) Introduces new ad-hoc IOCTLs
4) The IRQ handler can't use usual completion() in the driver because that'd
   trigger "scheduling while atomic" oops, yes?

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>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 1d9a394b

drivers/crypto/Kconfig

+0 −10
Original line number Diff line number Diff line
@@ -289,16 +289,6 @@ config CRYPTO_DEV_SAHARA 
	  This option enables support for the SAHARA HW crypto accelerator

	  found in some Freescale i.MX chips.



config CRYPTO_DEV_DCP

	tristate "Support for the DCP engine"

	depends on ARCH_MXS && OF

	select CRYPTO_BLKCIPHER

	select CRYPTO_AES

	select CRYPTO_CBC

	help

	  This options enables support for the hardware crypto-acceleration

	  capabilities of the DCP co-processor



config CRYPTO_DEV_S5P

	tristate "Support for Samsung S5PV210 crypto accelerator"

	depends on ARCH_S5PV210

drivers/crypto/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -13,7 +13,6 @@ obj-$(CONFIG_CRYPTO_DEV_OMAP_SHAM) += omap-sham.o 
obj-$(CONFIG_CRYPTO_DEV_OMAP_AES) += omap-aes.o

obj-$(CONFIG_CRYPTO_DEV_PICOXCELL) += picoxcell_crypto.o

obj-$(CONFIG_CRYPTO_DEV_SAHARA) += sahara.o

obj-$(CONFIG_CRYPTO_DEV_DCP) += dcp.o

obj-$(CONFIG_CRYPTO_DEV_S5P) += s5p-sss.o

obj-$(CONFIG_CRYPTO_DEV_TEGRA_AES) += tegra-aes.o

obj-$(CONFIG_CRYPTO_DEV_UX500) += ux500/

drivers/crypto/dcp.c

deleted100644 → 0
+0 −903

File deleted.

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