diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0020-bcm2835-rng-Avoid-initialising-if-already-enabled.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0020-bcm2835-rng-Avoid-initialising-if-already-enabled.patch | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0020-bcm2835-rng-Avoid-initialising-if-already-enabled.patch b/target/linux/brcm2708/patches-4.19/950-0020-bcm2835-rng-Avoid-initialising-if-already-enabled.patch deleted file mode 100644 index 30ab0504ae..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0020-bcm2835-rng-Avoid-initialising-if-already-enabled.patch +++ /dev/null @@ -1,25 +0,0 @@ -From d5df60f32f3c3b2f7f6d758ac08de6acb9fd947f Mon Sep 17 00:00:00 2001 -From: popcornmix <popcornmix@gmail.com> -Date: Tue, 6 Dec 2016 17:05:39 +0000 -Subject: [PATCH] bcm2835-rng: Avoid initialising if already enabled - -Avoids the 0x40000 cycles of warmup again if firmware has already used it ---- - drivers/char/hw_random/bcm2835-rng.c | 6 ++++-- - 1 file changed, 4 insertions(+), 2 deletions(-) - ---- a/drivers/char/hw_random/bcm2835-rng.c -+++ b/drivers/char/hw_random/bcm2835-rng.c -@@ -105,8 +105,10 @@ static int bcm2835_rng_init(struct hwrng - } - - /* set warm-up count & enable */ -- rng_writel(priv, RNG_WARMUP_COUNT, RNG_STATUS); -- rng_writel(priv, RNG_RBGEN, RNG_CTRL); -+ if (!(rng_readl(priv, RNG_CTRL) & RNG_RBGEN)) { -+ rng_writel(priv, RNG_WARMUP_COUNT, RNG_STATUS); -+ rng_writel(priv, RNG_RBGEN, RNG_CTRL); -+ } - - return ret; - } |