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crypto: atmel - add Atmel SHA1/SHA256 driver

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Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Nicolas Royer 2012-07-01 19:19:46 +02:00 committed by Herbert Xu
parent 13802005d8
commit ebc82efa1c
4 changed files with 1173 additions and 0 deletions
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14
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

1
drivers/crypto/Makefile
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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

46
drivers/crypto/atmel-sha-regs.h Normal file
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@ -0,0 +1,46 @@
#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__ */

1112
drivers/crypto/atmel-sha.c Normal file
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