target/linux/layerscape/patches-5.4/804-crypto-0013-MLK-9769-9-crypto-caam-adjust-RNG-timing-to-support-.patch

   1 From 5bc830089553a445952d69a73e0a9f5fdf9d0f19 Mon Sep 17 00:00:00 2001
   2 From: Victoria Milhoan <vicki.milhoan@freescale.com>
   3 Date: Wed, 12 Nov 2014 09:58:24 -0700
   4 Subject: [PATCH] MLK-9769-9 crypto: caam - adjust RNG timing to support more
   5  devices
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 Adjust RNG timing parameters to support more i.MX6 devices.
  11
  12 Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
  13 Signed-off-by: Dan Douglass <dan.douglass@freescale.com>
  14 Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
  15 (cherry picked from commit 57eabb638430ec68490d192738640b95a3507b1d)
  16
  17 Changed commit headline prefix.
  18
  19 Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
  20 ---
  21  drivers/crypto/caam/ctrl.c | 4 ++--
  22  1 file changed, 2 insertions(+), 2 deletions(-)
  23
  24 --- a/drivers/crypto/caam/ctrl.c
  25 +++ b/drivers/crypto/caam/ctrl.c
  26 @@ -364,8 +364,8 @@ static void kick_trng(struct platform_de
  27         wr_reg32(&r4tst->rtsdctl, val);
  28         /* min. freq. count, equal to 1/4 of the entropy sample length */
  29         wr_reg32(&r4tst->rtfrqmin, ent_delay >> 2);
  30 -       /* disable maximum frequency count */
  31 -       wr_reg32(&r4tst->rtfrqmax, RTFRQMAX_DISABLE);
  32 +       /* max. freq. count, equal to 16 times the entropy sample length */
  33 +       wr_reg32(&r4tst->rtfrqmax, ent_delay << 4);
  34         /* read the control register */
  35         val = rd_reg32(&r4tst->rtmctl);
  36  start_rng: