From 670526efa310c56f2826cc356306cdaa82ae41db Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Sat, 20 Feb 2021 19:53:50 +0100 Subject: [PATCH] bcm27xx: enable bcm2711 HW RNG MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Also add a patch setting its quality, which should make it usable by khwrngd. Signed-off-by: Álvaro Fernández Rojas --- target/linux/bcm27xx/bcm2709/config-5.4 | 1 + target/linux/bcm27xx/bcm2711/config-5.4 | 1 + .../960-hwrng-iproc-set-quality-to-1000.patch | 25 +++++++++++++++++++ 3 files changed, 27 insertions(+) create mode 100644 target/linux/bcm27xx/patches-5.4/960-hwrng-iproc-set-quality-to-1000.patch diff --git a/target/linux/bcm27xx/bcm2709/config-5.4 b/target/linux/bcm27xx/bcm2709/config-5.4 index 98ac433752..a4f6b3c0b4 100644 --- a/target/linux/bcm27xx/bcm2709/config-5.4 +++ b/target/linux/bcm27xx/bcm2709/config-5.4 @@ -246,6 +246,7 @@ CONFIG_HOTPLUG_CPU=y CONFIG_HW_CONSOLE=y CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_BCM2835=y +CONFIG_HW_RANDOM_IPROC_RNG200=y CONFIG_HZ=100 CONFIG_HZ_100=y CONFIG_HZ_FIXED=0 diff --git a/target/linux/bcm27xx/bcm2711/config-5.4 b/target/linux/bcm27xx/bcm2711/config-5.4 index 2ba8bfba3d..df6237f51e 100644 --- a/target/linux/bcm27xx/bcm2711/config-5.4 +++ b/target/linux/bcm27xx/bcm2711/config-5.4 @@ -258,6 +258,7 @@ CONFIG_HOTPLUG_CPU=y CONFIG_HW_CONSOLE=y CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_BCM2835=y +CONFIG_HW_RANDOM_IPROC_RNG200=y CONFIG_HZ=250 CONFIG_HZ_250=y CONFIG_I2C=y diff --git a/target/linux/bcm27xx/patches-5.4/960-hwrng-iproc-set-quality-to-1000.patch b/target/linux/bcm27xx/patches-5.4/960-hwrng-iproc-set-quality-to-1000.patch new file mode 100644 index 0000000000..0ceec49d7b --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/960-hwrng-iproc-set-quality-to-1000.patch @@ -0,0 +1,25 @@ +From d3e5e7f3a4e6f61e8c380b9a610212267ee72dbd Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= +Date: Sat, 20 Feb 2021 19:24:50 +0100 +Subject: [PATCH] hwrng: iproc: set quality to 1000 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This allows khwrngd to make use of iproc-rng200. + +Signed-off-by: Álvaro Fernández Rojas +--- + drivers/char/hw_random/iproc-rng200.c | 1 + + 1 file changed, 1 insertion(+) + +--- a/drivers/char/hw_random/iproc-rng200.c ++++ b/drivers/char/hw_random/iproc-rng200.c +@@ -270,6 +270,7 @@ static int iproc_rng200_probe(struct pla + + priv->rng.name = pdev->name; + priv->rng.cleanup = iproc_rng200_cleanup; ++ priv->rng.quality = 1000; + + if (of_device_is_compatible(dev->of_node, "brcm,bcm2711-rng200")) { + priv->rng.init = bcm2711_rng200_init;