arm: boot: dts: am4372: add ARM timers and SCU nodes

AM437x devices sport SCU, TWD and Global timers,
let's add them to DTS so they have a chance to
probe and be used by Linux.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am4372.dtsi

@@ -64,6 +64,27 @@ wakeupgen: interrupt-controller@48281000 {
 		interrupt-parent = <&gic>;
 	};
 
+	scu: scu@48240000 {
+		compatible = "arm,cortex-a9-scu";
+		reg = <0x48240000 0x100>;
+	};
+
+	global_timer: timer@48240200 {
+		compatible = "arm,cortex-a9-global-timer";
+		reg = <0x48240200 0x100>;
+		interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		clocks = <&dpll_mpu_m2_ck>;
+	};
+
+	local_timer: timer@48240600 {
+		compatible = "arm,cortex-a9-twd-timer";
+		reg = <0x48240600 0x100>;
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		clocks = <&dpll_mpu_m2_ck>;
+	};
+
 	l2-cache-controller@48242000 {
 		compatible = "arm,pl310-cache";
 		reg = <0x48242000 0x1000>;