From 906c87814dbf5e3d7f26bdeae198f01a3c189e40 Mon Sep 17 00:00:00 2001 From: =?utf8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Sat, 20 Feb 2021 18:59:25 +0100 Subject: [PATCH] generic: add bcm2835-rng quality patch MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This patch allows devices without a high resolution timer to boot up faster. It should speed up boots for bcm2708 and bcm63xx. Signed-off-by: Álvaro Fernández Rojas (cherry-picked from commit 7747b3fa36) --- ...40-hwrng-bcm2835-set-quality-to-1000.patch | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 target/linux/generic/pending-5.4/840-hwrng-bcm2835-set-quality-to-1000.patch diff --git a/target/linux/generic/pending-5.4/840-hwrng-bcm2835-set-quality-to-1000.patch b/target/linux/generic/pending-5.4/840-hwrng-bcm2835-set-quality-to-1000.patch new file mode 100644 index 0000000000..247c6d8364 --- /dev/null +++ b/target/linux/generic/pending-5.4/840-hwrng-bcm2835-set-quality-to-1000.patch @@ -0,0 +1,26 @@ +From d6988cf1d16faac56899918bb2b1be8d85155e3f Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= +Date: Sat, 20 Feb 2021 18:36:38 +0100 +Subject: [PATCH] hwrng: bcm2835: set quality to 1000 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This allows devices without a high precission timer to reduce boot from >100s +to <30s. + +Signed-off-by: Álvaro Fernández Rojas +--- + drivers/char/hw_random/bcm2835-rng.c | 1 + + 1 file changed, 1 insertion(+) + +--- a/drivers/char/hw_random/bcm2835-rng.c ++++ b/drivers/char/hw_random/bcm2835-rng.c +@@ -167,6 +167,7 @@ static int bcm2835_rng_probe(struct plat + priv->rng.init = bcm2835_rng_init; + priv->rng.read = bcm2835_rng_read; + priv->rng.cleanup = bcm2835_rng_cleanup; ++ priv->rng.quality = 1000; + + if (dev_of_node(dev)) { + rng_id = of_match_node(bcm2835_rng_of_match, np); -- 2.30.2