From 5bc830089553a445952d69a73e0a9f5fdf9d0f19 Mon Sep 17 00:00:00 2001 From: Victoria Milhoan Date: Wed, 12 Nov 2014 09:58:24 -0700 Subject: [PATCH] MLK-9769-9 crypto: caam - adjust RNG timing to support more devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adjust RNG timing parameters to support more i.MX6 devices. Signed-off-by: Victoria Milhoan Signed-off-by: Dan Douglass Signed-off-by: Vipul Kumar (cherry picked from commit 57eabb638430ec68490d192738640b95a3507b1d) Changed commit headline prefix. Signed-off-by: Horia Geantă --- drivers/crypto/caam/ctrl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -364,8 +364,8 @@ static void kick_trng(struct platform_de 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: