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crypto: caam - adjust RNG timing to support more devices

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Adjust RNG timing parameters to support more i.MX6 devices.

Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Signed-off-by: Dan Douglass <dan.douglass@nxp.com>
Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Victoria Milhoan
2023-06-12 10:26:15 +02:00
committed by Herbert Xu
parent d614dcb225
commit ef492d0803
1 changed files with 2 additions and 2 deletions
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4
drivers/crypto/caam/ctrl.c
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@@ -389,8 +389,8 @@ static void kick_trng(struct device *dev, int ent_delay)
wr_reg32(&r4tst->rtsdctl, val);
/* min. freq. count, equal to 1/4 of the entropy sample length */
wr_reg32(&r4tst->rtfrqmin, ent_delay >> 2);
/* disable maximum frequency count */
wr_reg32(&r4tst->rtfrqmax, RTFRQMAX_DISABLE);
/* max. freq. count, equal to 16 times the entropy sample length */
wr_reg32(&r4tst->rtfrqmax, ent_delay << 4);
/* read the control register */
val = rd_reg32(&r4tst->rtmctl);
start_rng: