From f7782e6e81456bbcd6934eb19069d9ff5dba2be0 Mon Sep 17 00:00:00 2001
From: Sorgelig <pour.garbage@gmail.com>
Date: Sun, 17 Sep 2017 04:16:09 +0800
Subject: [PATCH] Support for i2c rtc m41t81.

---
 arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts b/arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts
index 711ca1775..d5d1e49ba 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts
@@ -97,6 +97,14 @@
 	};
 };
 
+&i2c1 {
+	status = "okay";
+        rtc_at_68 {
+                compatible = "stm,m41t81";
+                reg = <0x68>;
+        };
+};
+
 &mmc0 {
 	vmmc-supply = <&regulator_3_3v>;
 	vqmmc-supply = <&regulator_3_3v>;