diff --git a/arch/arm64/boot/dts/renesas/r9a07g044.dtsi b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
index a7818dbeb271..be9e5c495553 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
@@ -791,6 +791,39 @@ hsusb: usb@11c60000 {
 			power-domains = <&cpg>;
 			status = "disabled";
 		};
+
+		ostm0: timer@12801000 {
+			compatible = "renesas,r9a07g044-ostm",
+				     "renesas,ostm";
+			reg = <0x0 0x12801000 0x0 0x400>;
+			interrupts = <GIC_SPI 46 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&cpg CPG_MOD R9A07G044_OSTM0_PCLK>;
+			resets = <&cpg R9A07G044_OSTM0_PRESETZ>;
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		ostm1: timer@12801400 {
+			compatible = "renesas,r9a07g044-ostm",
+				     "renesas,ostm";
+			reg = <0x0 0x12801400 0x0 0x400>;
+			interrupts = <GIC_SPI 47 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&cpg CPG_MOD R9A07G044_OSTM1_PCLK>;
+			resets = <&cpg R9A07G044_OSTM1_PRESETZ>;
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		ostm2: timer@12801800 {
+			compatible = "renesas,r9a07g044-ostm",
+				     "renesas,ostm";
+			reg = <0x0 0x12801800 0x0 0x400>;
+			interrupts = <GIC_SPI 48 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&cpg CPG_MOD R9A07G044_OSTM2_PCLK>;
+			resets = <&cpg R9A07G044_OSTM2_PRESETZ>;
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
 	};
 
 	timer {