layerscape: add patches-5.4

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

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 (file)
index 0000000..5c30e1d
--- /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: