From b329669ea0b5b02efd41f94372bcf0e988814af4 Mon Sep 17 00:00:00 2001 From: Jonghwa Lee Date: Fri, 29 Jun 2012 09:43:26 +0900 Subject: hwrng: exynos - Add support for Exynos random number generator This patch supports Exynos SOC's PRNG driver. Exynos's PRNG has 5 seeds and 5 random number outputs. Module is excuted under runtime power management control, so it activates only while it's in use. Otherwise it will be suspended generally. It was tested on PQ board by rngtest program. Signed-off-by: Jonghwa Lee Signed-off-by: Kyungmin Park Reviewed-by: Stephen Boyd Signed-off-by: Herbert Xu --- drivers/char/hw_random/Kconfig | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/char/hw_random/Kconfig') diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index f45dad39a18b..b01d67328243 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -263,3 +263,15 @@ config HW_RANDOM_PSERIES module will be called pseries-rng. If unsure, say Y. + +config HW_RANDOM_EXYNOS + tristate "EXYNOS HW random number generator support" + depends on HW_RANDOM && HAS_IOMEM && HAVE_CLK + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on EXYNOS SOCs. + + To compile this driver as a module, choose M here: the + module will be called exynos-rng. + + If unsure, say Y. -- cgit v1.2.3