Messages in this thread Patch in this message | | | From | meenakshi.aggarwal@nxp ... | Subject | [PATCH] crypto: caam - adjust RNG timing to support more devices | Date | Mon, 12 Jun 2023 10:26:15 +0200 |
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From: Victoria Milhoan <vicki.milhoan@freescale.com>
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> --- drivers/crypto/caam/ctrl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index 5fed3cf354c0..62dd069942e4 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -383,8 +383,8 @@ 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: -- 2.25.1
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