diff options
Diffstat (limited to 'drivers/crypto/mxs-dcp.c')
| -rw-r--r-- | drivers/crypto/mxs-dcp.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c index 057d73c370b7..133ebc998236 100644 --- a/drivers/crypto/mxs-dcp.c +++ b/drivers/crypto/mxs-dcp.c @@ -232,13 +232,15 @@ static int mxs_dcp_run_aes(struct dcp_async_ctx *actx, bool key_referenced = actx->key_referenced; int ret; - if (!key_referenced) { + if (key_referenced) + key_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_key + AES_KEYSIZE_128, + AES_KEYSIZE_128, DMA_TO_DEVICE); + else key_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_key, 2 * AES_KEYSIZE_128, DMA_TO_DEVICE); - ret = dma_mapping_error(sdcp->dev, key_phys); - if (ret) - return ret; - } + ret = dma_mapping_error(sdcp->dev, key_phys); + if (ret) + return ret; src_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_in_buf, DCP_BUF_SZ, DMA_TO_DEVICE); @@ -263,12 +265,12 @@ static int mxs_dcp_run_aes(struct dcp_async_ctx *actx, MXS_DCP_CONTROL0_INTERRUPT | MXS_DCP_CONTROL0_ENABLE_CIPHER; - if (key_referenced) - /* Set OTP key bit to select the key via KEY_SELECT. */ - desc->control0 |= MXS_DCP_CONTROL0_OTP_KEY; - else + if (!key_referenced) /* Payload contains the key. */ desc->control0 |= MXS_DCP_CONTROL0_PAYLOAD_KEY; + else if (actx->key[0] == DCP_PAES_KEY_OTP) + /* Set OTP key bit to select the key via KEY_SELECT. */ + desc->control0 |= MXS_DCP_CONTROL0_OTP_KEY; if (rctx->enc) desc->control0 |= MXS_DCP_CONTROL0_CIPHER_ENCRYPT; @@ -299,7 +301,10 @@ aes_done_run: err_dst: dma_unmap_single(sdcp->dev, src_phys, DCP_BUF_SZ, DMA_TO_DEVICE); err_src: - if (!key_referenced) + if (key_referenced) + dma_unmap_single(sdcp->dev, key_phys, AES_KEYSIZE_128, + DMA_TO_DEVICE); + else dma_unmap_single(sdcp->dev, key_phys, 2 * AES_KEYSIZE_128, DMA_TO_DEVICE); return ret; @@ -1242,7 +1247,7 @@ MODULE_DEVICE_TABLE(of, mxs_dcp_dt_ids); static struct platform_driver mxs_dcp_driver = { .probe = mxs_dcp_probe, - .remove_new = mxs_dcp_remove, + .remove = mxs_dcp_remove, .driver = { .name = "mxs-dcp", .of_match_table = mxs_dcp_dt_ids, |