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[1/2] arm64: tegra: Add RTC support on Tegra194

Message ID 20181128165050.10506-1-thierry.reding@gmail.com
State Accepted
Headers show
Series [1/2] arm64: tegra: Add RTC support on Tegra194 | expand

Commit Message

Thierry Reding Nov. 28, 2018, 4:50 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

The RTC on Tegra194 is very similar to the RTC on earlier generations.
One notable exception is that the source clock is now the 32 kHz clock
instead of a dedicated RTC clock and the RTC alarm is a wake event and
can be used to wake the system from sleep.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra194.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 7349640cf22d..d8d012c6a6f2 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -760,6 +760,16 @@ 
 			status = "disabled";
 		};
 
+		rtc: rtc@c2a0000 {
+			compatible = "nvidia,tegra194-rtc", "nvidia,tegra20-rtc";
+			reg = <0x0c2a0000 0x10000>;
+			interrupt-parent = <&pmc>;
+			interrupts = <73 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&bpmp TEGRA194_CLK_CLK_32K>;
+			clock-names = "rtc";
+			status = "disabled";
+		};
+
 		pwm4: pwm@c340000 {
 			compatible = "nvidia,tegra194-pwm",
 				     "nvidia,tegra186-pwm";