diff --git a/qcom/sun.dtsi b/qcom/sun.dtsi
index daaacaf5..4e475428 100644
--- a/qcom/sun.dtsi
+++ b/qcom/sun.dtsi
@@ -34,7 +34,7 @@
 
 
 	chosen: chosen {
-		bootargs = "nokaslr kpti=0 log_buf_len=256K swiotlb=0 loop.max_part=7 pcie_ports=compat mem-offline.bypass_send_msg=1 cpuidle.off=1";
+		bootargs = "nokaslr kpti=0 log_buf_len=256K swiotlb=0 loop.max_part=7 irqaffinity=0-1 pcie_ports=compat mem-offline.bypass_send_msg=1 cpuidle.off=1";
 		stdout-path = "/soc/qcom,qupv3_1_geni_se@ac0000/qcom,qup_uart@a9c000:115200n8";
 	};
 
@@ -809,6 +809,14 @@
 		cap-based-alloc-and-pwr-collapse;
 	};
 
+	gic-interrupt-router {
+		compatible = "qcom,gic-intr-routing";
+		/* keep a few m cores in class0 only to avoid wakeup of l cores */
+		qcom,gic-class0-cpus = <0 1>;
+		/* keep other cores in class1 */
+		qcom,gic-class1-cpus = <2 3 4 5 6 7>;
+	};
+
 	qcom,secure-buffer {
 		compatible = "qcom,secure-buffer";
 		qcom,vmid-cp-camera-preview-ro;