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| author | Ruchika Gupta <ruchika.gupta@freescale.com> | 2015-01-23 16:01:55 +0530 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-01-29 17:09:58 -0700 |
| commit | 34276478f7b7a0fea9c76e365a477962910ef770 (patch) | |
| tree | 45021bad9d49780795816921ea05c1e94e5ba454 /drivers/crypto/fsl/jobdesc.c | |
| parent | c937ff6dc2ee3fcd8f97087427fe8ba5086852c4 (diff) | |
| download | u-boot-imx-34276478f7b7a0fea9c76e365a477962910ef770.zip u-boot-imx-34276478f7b7a0fea9c76e365a477962910ef770.tar.gz u-boot-imx-34276478f7b7a0fea9c76e365a477962910ef770.tar.bz2 | |
DM: crypto/fsl - Add Freescale rsa DM driver
Driver added for RSA Modular Exponentiation using Freescale Hardware
Accelerator CAAM. The driver uses UCLASS_MOD_EXP
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/crypto/fsl/jobdesc.c')
| -rw-r--r-- | drivers/crypto/fsl/jobdesc.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/crypto/fsl/jobdesc.c b/drivers/crypto/fsl/jobdesc.c index 1386bae..cc0dced 100644 --- a/drivers/crypto/fsl/jobdesc.c +++ b/drivers/crypto/fsl/jobdesc.c @@ -11,6 +11,7 @@ #include <common.h> #include "desc_constr.h" #include "jobdesc.h" +#include "rsa_caam.h" #define KEY_BLOB_SIZE 32 #define MAC_SIZE 16 @@ -123,3 +124,30 @@ void inline_cnstr_jobdesc_rng_instantiation(uint32_t *desc) append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG | OP_ALG_RNG4_SK); } + +/* Change key size to bytes form bits in calling function*/ +void inline_cnstr_jobdesc_pkha_rsaexp(uint32_t *desc, + struct pk_in_params *pkin, uint8_t *out, + uint32_t out_siz) +{ + dma_addr_t dma_addr_e, dma_addr_a, dma_addr_n, dma_addr_out; + + dma_addr_e = virt_to_phys((void *)pkin->e); + dma_addr_a = virt_to_phys((void *)pkin->a); + dma_addr_n = virt_to_phys((void *)pkin->n); + dma_addr_out = virt_to_phys((void *)out); + + init_job_desc(desc, 0); + append_key(desc, dma_addr_e, pkin->e_siz, KEY_DEST_PKHA_E | CLASS_1); + + append_fifo_load(desc, dma_addr_a, + pkin->a_siz, LDST_CLASS_1_CCB | FIFOLD_TYPE_PK_A); + + append_fifo_load(desc, dma_addr_n, + pkin->n_siz, LDST_CLASS_1_CCB | FIFOLD_TYPE_PK_N); + + append_operation(desc, OP_TYPE_PK | OP_ALG_PK | OP_ALG_PKMODE_MOD_EXPO); + + append_fifo_store(desc, dma_addr_out, out_siz, + LDST_CLASS_1_CCB | FIFOST_TYPE_PKHA_B); +} |