diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/804-crypto-0013-MLK-9769-9-crypto-caam-adjust-RNG-timing-to-support-.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/804-crypto-0013-MLK-9769-9-crypto-caam-adjust-RNG-timing-to-support-.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/804-crypto-0013-MLK-9769-9-crypto-caam-adjust-RNG-timing-to-support-.patch b/target/linux/layerscape/patches-5.4/804-crypto-0013-MLK-9769-9-crypto-caam-adjust-RNG-timing-to-support-.patch new file mode 100644 index 0000000000..5c30e1d287 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/804-crypto-0013-MLK-9769-9-crypto-caam-adjust-RNG-timing-to-support-.patch @@ -0,0 +1,36 @@ +From 5bc830089553a445952d69a73e0a9f5fdf9d0f19 Mon Sep 17 00:00:00 2001 +From: Victoria Milhoan <vicki.milhoan@freescale.com> +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 <vicki.milhoan@freescale.com> +Signed-off-by: Dan Douglass <dan.douglass@freescale.com> +Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com> +(cherry picked from commit 57eabb638430ec68490d192738640b95a3507b1d) + +Changed commit headline prefix. + +Signed-off-by: Horia Geantă <horia.geanta@nxp.com> +--- + 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: |