ARM: at91/dt: enable the RTT block on the at91sam9m10g45ek board

Enable the RTT and GPBR devices and specify the general purpose register
used to store the current time.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
index d8dd22651090..33ce7ca2c404 100644
--- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -161,6 +161,15 @@
                                 pinctrl-0 = <&pinctrl_pwm_leds>;
                         };
 
+                        rtc@fffffd20 {
+                                atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
+                                status = "okay";
+                        };
+
+                        gpbr: syscon@fffffd60 {
+                                status = "okay";
+                        };
+
                         rtc@fffffdb0 {
                                 status = "okay";
                         };