From: Stephen Warren <swarren@nvidia.com>
Date: Wed, 19 Sep 2012 18:13:16 +0000 (-0600)
Subject: ARM: tegra: define DT bindings for and instantiate RTC
X-Git-Tag: firefly_0821_release~3680^2~1478^2~1^2~9
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=380e04ac2cd96a4c36ad164fce556427dcd2ea0f;p=firefly-linux-kernel-4.4.55.git

ARM: tegra: define DT bindings for and instantiate RTC

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.

Define a DT binding for this HW module, and add the module into the Tegra
device tree files.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---

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>;