arm64: tegra: Enable native timers on Tegra234

The native timers IP block found on NVIDIA Tegra SoCs implements a
watchdog timer that can be used to recover from system hangs. Add and
enable the device tree node on Tegra234.

Signed-off-by: Kartik <kkartik@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 591951c189cb86eb8322f63d9d0088d350522a55..8225f51313fcf14475c7a19fa30518d58eb135d4 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -519,6 +519,28 @@
                        status = "okay";
                };
 
+               timer@2080000 {
+                       compatible = "nvidia,tegra234-timer";
+                       reg = <0x02080000 0x00121000>;
+                       interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+                       status = "okay";
+               };
+
                gpio: gpio@2200000 {
                        compatible = "nvidia,tegra234-gpio";
                        reg-names = "security", "gpio";