3 files changed, 31 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt b/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt
new file mode 100644
index 000000000000..93f45e9dce7c
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt
@@ -0,0 +1,19 @@
+NVIDIA Tegra20 real-time clock
+
+The Tegra RTC maintains seconds and milliseconds counters, and five alarm
+registers. The alarms and other interrupts may wake the system from low-power
+state.
+
+Required properties:
+
+- compatible : should be "nvidia,tegra20-rtc".
+- reg : Specifies base physical address and size of the registers.
+- interrupts : A single interrupt specifier.
+
+Example:
+
+timer {
+        compatible = "nvidia,tegra20-rtc";
+        reg = <0x7000e000 0x100>;
+        interrupts = <0 2 0x04>;
+};
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 96c922d8bb39..63c25cefaad7 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -234,6 +234,12 @@
                 #pwm-cells = <2>;
         };
 
+        rtc {
+                compatible = "nvidia,tegra20-rtc";
+                reg = <0x7000e000 0x100>;
+                interrupts = <0 2 0x04>;
+        };
+
         i2c@7000c000 {
                 compatible = "nvidia,tegra20-i2c";
                 reg = <0x7000c000 0x100>;
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 48a8320ebf03..f7af06621cc8 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -230,6 +230,12 @@
                 #pwm-cells = <2>;
         };
 
+        rtc {
+                compatible = "nvidia,tegra30-rtc", "nvidia,tegra20-rtc";
+                reg = <0x7000e000 0x100>;
+                interrupts = <0 2 0x04>;
+        };
+
         i2c@7000c000 {
                 compatible =  "nvidia,tegra30-i2c", "nvidia,tegra20-i2c";
                 reg = <0x7000c000 0x100>;