i.MX31: Add hw-random for RNGA

This hw-random driver add support to RNGA hardware found
on some i.MX processors.

Signed-off-by: Alan Carvalho de Assis <acassis@gmail.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
index beeb01aa029c..8986b7412235 100644
--- a/arch/arm/plat-mxc/Kconfig
+++ b/arch/arm/plat-mxc/Kconfig
@@ -52,6 +52,10 @@ config MXC_PWM
         help
           Enable support for the i.MX PWM controller(s).
 
+config ARCH_HAS_RNGA
+        bool
+        depends on ARCH_MXC
+
 config ARCH_MXC_IOMUX_V3
         bool
 endif