arm64: dts: rockchip: Add rktimer device node for rk3399

Add a 'rktimer' node in the device treee for the ARM64 rk3399 SoC.
Signed-off-by: NHuang Tao <huangtao@rock-chips.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Heiko Stuebner <heiko@sntech.de>
Tested-by: NJianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: NCaesar Wang <wxt@rock-chips.com>
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>

arch/arm64/boot/dts/rockchip/rk3399.dtsi

@@ -492,6 +492,14 @@
 		interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
+	rktimer: rktimer@ff850000 {
+		compatible = "rockchip,rk3399-timer";
+		reg = <0x0 0xff850000 0x0 0x1000>;
+		interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru PCLK_TIMER0>, <&cru SCLK_TIMER00>;
+		clock-names = "pclk", "timer";
+	};
+
 	spdif: spdif@ff870000 {
 		compatible = "rockchip,rk3399-spdif";
 		reg = <0x0 0xff870000 0x0 0x1000>;