1 files changed, 24 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt b/kernel/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt
new file mode 100644
index 000000000..b7d98ed3e
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt
@@ -0,0 +1,24 @@
+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 : For Tegra20, must contain "nvidia,tegra20-rtc".  Otherwise,
+  must contain '"nvidia,<chip>-rtc", "nvidia,tegra20-rtc"', where <chip>
+  can be tegra30, tegra114, tegra124, or tegra132.
+- reg : Specifies base physical address and size of the registers.
+- interrupts : A single interrupt specifier.
+- clocks : Must contain one entry, for the module clock.
+  See ../clocks/clock-bindings.txt for details.
+
+Example:
+
+timer {
+	compatible = "nvidia,tegra20-rtc";
+	reg = <0x7000e000 0x100>;
+	interrupts = <0 2 0x04>;
+	clocks = <&tegra_car 4>;
+};