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Commit ebc82efa authored by Nicolas Royer's avatar Nicolas Royer Committed by Herbert Xu
Browse files

crypto: atmel - add Atmel SHA1/SHA256 driver 



Signed-off-by: default avatarNicolas Royer <nicolas@eukrea.com>
Acked-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: default avatarEric Bénard <eric@eukrea.com>
Tested-by: default avatarEric Bénard <eric@eukrea.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 13802005

drivers/crypto/Kconfig

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@@ -365,4 +365,18 @@ config CRYPTO_DEV_ATMEL_TDES 
	  To compile this driver as a module, choose M here: the module

	  will be called atmel-tdes.



config CRYPTO_DEV_ATMEL_SHA

	tristate "Support for Atmel SHA1/SHA256 hw accelerator"

	depends on ARCH_AT91

	select CRYPTO_SHA1

	select CRYPTO_SHA256

	select CRYPTO_ALGAPI

	help

	  Some Atmel processors have SHA1/SHA256 hw accelerator.

	  Select this if you want to use the Atmel module for

	  SHA1/SHA256 algorithms.



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

	  will be called atmel-sha.



endif # CRYPTO_HW

drivers/crypto/Makefile

+1 −0
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@@ -19,3 +19,4 @@ obj-$(CONFIG_CRYPTO_DEV_BFIN_CRC) += bfin_crc.o 
obj-$(CONFIG_CRYPTO_DEV_NX) += nx/

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

drivers/crypto/atmel-sha-regs.h

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#ifndef __ATMEL_SHA_REGS_H__

#define __ATMEL_SHA_REGS_H__



#define SHA_REG_DIGEST(x)		(0x80 + ((x) * 0x04))

#define SHA_REG_DIN(x)			(0x40 + ((x) * 0x04))



#define SHA_CR				0x00

#define SHA_CR_START			(1 << 0)

#define SHA_CR_FIRST			(1 << 4)

#define SHA_CR_SWRST			(1 << 8)



#define SHA_MR				0x04

#define SHA_MR_MODE_MASK		(0x3 << 0)

#define SHA_MR_MODE_MANUAL		0x0

#define SHA_MR_MODE_AUTO		0x1

#define SHA_MR_MODE_PDC			0x2

#define	SHA_MR_DUALBUFF			(1 << 3)

#define SHA_MR_PROCDLY			(1 << 4)

#define SHA_MR_ALGO_SHA1		(0 << 8)

#define SHA_MR_ALGO_SHA256		(1 << 8)



#define SHA_IER				0x10

#define SHA_IDR				0x14

#define SHA_IMR				0x18

#define SHA_ISR				0x1C

#define SHA_INT_DATARDY			(1 << 0)

#define SHA_INT_ENDTX			(1 << 1)

#define SHA_INT_TXBUFE			(1 << 2)

#define SHA_INT_URAD			(1 << 8)

#define SHA_ISR_URAT_MASK		(0x7 << 12)

#define SHA_ISR_URAT_IDR		(0x0 << 12)

#define SHA_ISR_URAT_ODR		(0x1 << 12)

#define SHA_ISR_URAT_MR			(0x2 << 12)

#define SHA_ISR_URAT_WO			(0x5 << 12)



#define SHA_TPR				0x108

#define SHA_TCR				0x10C

#define SHA_TNPR			0x118

#define SHA_TNCR			0x11C

#define SHA_PTCR			0x120

#define SHA_PTCR_TXTEN		(1 << 8)

#define SHA_PTCR_TXTDIS		(1 << 9)

#define SHA_PTSR			0x124

#define SHA_PTSR_TXTEN		(1 << 8)



#endif /* __ATMEL_SHA_REGS_H__ */

drivers/crypto/atmel-sha.c

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