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SHA-256 and SHA-1 accelerated using SEC hardware in Freescale SoC's The driver for SEC (CAAM) IP is based on linux drivers/crypto/caam. The platforms needto add the MACRO CONFIG_FSL_CAAM inorder to enable initialization of this hardware IP. Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
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* SEC Descriptor Construction Library
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* Basic job descriptor construction
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*
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* Copyright 2014 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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*/
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#include <common.h>
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#include "desc_constr.h"
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#include "jobdesc.h"
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void inline_cnstr_jobdesc_hash(uint32_t *desc,
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const uint8_t *msg, uint32_t msgsz, uint8_t *digest,
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u32 alg_type, uint32_t alg_size, int sg_tbl)
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{
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/* SHA 256 , output is of length 32 words */
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uint32_t storelen = alg_size;
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u32 options;
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dma_addr_t dma_addr_in, dma_addr_out;
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dma_addr_in = virt_to_phys((void *)msg);
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dma_addr_out = virt_to_phys((void *)digest);
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init_job_desc(desc, 0);
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append_operation(desc, OP_TYPE_CLASS2_ALG |
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OP_ALG_AAI_HASH | OP_ALG_AS_INITFINAL |
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OP_ALG_ENCRYPT | OP_ALG_ICV_OFF | alg_type);
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options = LDST_CLASS_2_CCB | FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST2;
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if (sg_tbl)
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options |= FIFOLDST_SGF;
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if (msgsz > 0xffff) {
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options |= FIFOLDST_EXT;
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append_fifo_load(desc, dma_addr_in, 0, options);
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append_cmd(desc, msgsz);
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} else {
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append_fifo_load(desc, dma_addr_in, msgsz, options);
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}
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append_store(desc, dma_addr_out, storelen,
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LDST_CLASS_2_CCB | LDST_SRCDST_BYTE_CONTEXT);
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}
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