ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4

The OpenBlocks AX3-4 has a Seiko Instruments S-35390A as the RTC
controller.  This patch enables this RTC device in the OpenBlocks
AX3-4 Device Tree.

[Thomas Petazzoni: updated with other OpenBlocks changes, rephrased
commit log.]
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
index cb7f0d9..13ce6ae 100644 (file)
--- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
+++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
@@ -111,6 +111,11 @@
                i2c@d0011100 {
                        status = "okay";
                        clock-frequency = <400000>;
+
+                       s35390a: s35390a@30 {
+                               compatible = "s35390a";
+                               reg = <0x30>;
+                       };
                };
        };
 };