arm64: tegra: Add native timer support on Tegra186

The native timers IP block found on NVIDIA Tegra SoCs implements a
watchdog timer that can be used to recover from system hangs. Add the
device tree node on Tegra186.

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

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index fe58866..855ae6b 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -508,6 +508,22 @@
                };
        };
 
+       timer@3010000 {
+               compatible = "nvidia,tegra186-timer";
+               reg = <0x0 0x03010000 0x0 0x000e0000>;
+               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>;
+               status = "disabled";
+       };
+
        uarta: serial@3100000 {
                compatible = "nvidia,tegra186-uart", "nvidia,tegra20-uart";
                reg = <0x0 0x03100000 0x0 0x40>;