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crypto: qce - Enable support for crypto engine on sdm845

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Add support Qualcomm Crypto Engine accelerated encryption and
authentication algorithms on sdm845.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Thara Gopinath 2020-11-19 10:52:30 -05:00 committed by Herbert Xu
parent ac50aec41a
commit 8cbc344821
1 changed files with 16 additions and 1 deletions
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17
drivers/crypto/qce/core.c
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@ -159,7 +159,21 @@ static int qce_check_version(struct qce_device *qce)
return -ENODEV;
qce->burst_size = QCE_BAM_BURST_SIZE;
qce->pipe_pair_id = 1;
/*
* Rx and tx pipes are treated as a pair inside CE.
* Pipe pair number depends on the actual BAM dma pipe
* that is used for transfers. The BAM dma pipes are passed
* from the device tree and used to derive the pipe pair
* id in the CE driver as follows.
* BAM dma pipes(rx, tx) CE pipe pair id
* 0,1 0
* 2,3 1
* 4,5 2
* 6,7 3
* ...
*/
qce->pipe_pair_id = qce->dma.rxchan->chan_id >> 1;
dev_dbg(qce->dev, "Crypto device found, version %d.%d.%d\n",
major, minor, step);
@ -260,6 +274,7 @@ static int qce_crypto_remove(struct platform_device *pdev)
static const struct of_device_id qce_crypto_of_match[] = {
{ .compatible = "qcom,crypto-v5.1", },
{ .compatible = "qcom,crypto-v5.4", },
{}
};
MODULE_DEVICE_TABLE(of, qce_crypto_of_match);