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89a82ef87e
This patchs allows to combine the AES and SHA hardware accelerators on some Atmel SoCs. Doing so, AES blocks are only written to/read from the AES hardware. Those blocks are also transferred from the AES to the SHA accelerator internally, without additionnal accesses to the system busses. Hence, the AES and SHA accelerators work in parallel to process all the data blocks, instead of serializing the process by (de)crypting those blocks first then authenticating them after like the generic crypto/authenc.c driver does. Of course, both the AES and SHA hardware accelerators need to be available before we can start to process the data blocks. Hence we use their crypto request queue to synchronize both drivers. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
#ifndef __ATMEL_SHA_REGS_H__
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#define __ATMEL_SHA_REGS_H__
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#define SHA_REG_DIGEST(x) (0x80 + ((x) * 0x04))
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#define SHA_REG_DIN(x) (0x40 + ((x) * 0x04))
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#define SHA_CR 0x00
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#define SHA_CR_START (1 << 0)
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#define SHA_CR_FIRST (1 << 4)
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#define SHA_CR_SWRST (1 << 8)
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#define SHA_CR_WUIHV (1 << 12)
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#define SHA_CR_WUIEHV (1 << 13)
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#define SHA_MR 0x04
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#define SHA_MR_MODE_MASK (0x3 << 0)
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#define SHA_MR_MODE_MANUAL 0x0
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#define SHA_MR_MODE_AUTO 0x1
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#define SHA_MR_MODE_PDC 0x2
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#define SHA_MR_MODE_IDATAR0 0x2
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#define SHA_MR_PROCDLY (1 << 4)
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#define SHA_MR_UIHV (1 << 5)
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#define SHA_MR_UIEHV (1 << 6)
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#define SHA_MR_ALGO_MASK GENMASK(10, 8)
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#define SHA_MR_ALGO_SHA1 (0 << 8)
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#define SHA_MR_ALGO_SHA256 (1 << 8)
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#define SHA_MR_ALGO_SHA384 (2 << 8)
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#define SHA_MR_ALGO_SHA512 (3 << 8)
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#define SHA_MR_ALGO_SHA224 (4 << 8)
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#define SHA_MR_HMAC (1 << 11)
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#define SHA_MR_DUALBUFF (1 << 16)
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#define SHA_FLAGS_ALGO_MASK SHA_MR_ALGO_MASK
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#define SHA_FLAGS_SHA1 SHA_MR_ALGO_SHA1
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#define SHA_FLAGS_SHA256 SHA_MR_ALGO_SHA256
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#define SHA_FLAGS_SHA384 SHA_MR_ALGO_SHA384
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#define SHA_FLAGS_SHA512 SHA_MR_ALGO_SHA512
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#define SHA_FLAGS_SHA224 SHA_MR_ALGO_SHA224
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#define SHA_FLAGS_HMAC SHA_MR_HMAC
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#define SHA_FLAGS_HMAC_SHA1 (SHA_FLAGS_HMAC | SHA_FLAGS_SHA1)
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#define SHA_FLAGS_HMAC_SHA256 (SHA_FLAGS_HMAC | SHA_FLAGS_SHA256)
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#define SHA_FLAGS_HMAC_SHA384 (SHA_FLAGS_HMAC | SHA_FLAGS_SHA384)
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#define SHA_FLAGS_HMAC_SHA512 (SHA_FLAGS_HMAC | SHA_FLAGS_SHA512)
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#define SHA_FLAGS_HMAC_SHA224 (SHA_FLAGS_HMAC | SHA_FLAGS_SHA224)
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#define SHA_FLAGS_MODE_MASK (SHA_FLAGS_HMAC | SHA_FLAGS_ALGO_MASK)
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#define SHA_IER 0x10
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#define SHA_IDR 0x14
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#define SHA_IMR 0x18
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#define SHA_ISR 0x1C
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#define SHA_INT_DATARDY (1 << 0)
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#define SHA_INT_ENDTX (1 << 1)
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#define SHA_INT_TXBUFE (1 << 2)
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#define SHA_INT_URAD (1 << 8)
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#define SHA_ISR_URAT_MASK (0x7 << 12)
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#define SHA_ISR_URAT_IDR (0x0 << 12)
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#define SHA_ISR_URAT_ODR (0x1 << 12)
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#define SHA_ISR_URAT_MR (0x2 << 12)
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#define SHA_ISR_URAT_WO (0x5 << 12)
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#define SHA_MSR 0x20
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#define SHA_BCR 0x30
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#define SHA_HW_VERSION 0xFC
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#define SHA_TPR 0x108
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#define SHA_TCR 0x10C
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#define SHA_TNPR 0x118
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#define SHA_TNCR 0x11C
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#define SHA_PTCR 0x120
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#define SHA_PTCR_TXTEN (1 << 8)
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#define SHA_PTCR_TXTDIS (1 << 9)
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#define SHA_PTSR 0x124
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#define SHA_PTSR_TXTEN (1 << 8)
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#endif /* __ATMEL_SHA_REGS_H__ */
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