hwrng: bcm2835 - Add Broadcom BCM2835 RNG driver

This adds a driver for random number generator present on Broadcom BCM2835 SoC,
used in Raspberry Pi and Roku 2 devices.

Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: linux-rpi-kernel@lists.infradead.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index c5a0262251bc..2f9dbf7568fb 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -86,6 +86,18 @@ config HW_RANDOM_BCM63XX
 
           If unusure, say Y.
 
+config HW_RANDOM_BCM2835
+        tristate "Broadcom BCM2835 Random Number Generator support"
+        depends on HW_RANDOM && ARCH_BCM2835
+        default HW_RANDOM
+        ---help---
+          This driver provides kernel-side support for the Random Number
+          Generator hardware found on the Broadcom BCM2835 SoCs.
+
+          To compile this driver as a module, choose M here: the
+          module will be called bcm2835-rng
+
+          If unsure, say Y.
 
 config HW_RANDOM_GEODE
         tristate "AMD Geode HW Random Number Generator support"