diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index 0d92523620ef..e535a7526220 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -98,6 +98,7 @@ cpu0_opp_table: cpu0-opp-table {
 		compatible = "operating-points-v2";
 		opp-shared;
 
+		rockchip,evb-irdrop = <25000>;
 		nvmem-cells = <&cpu_leakage>;
 		nvmem-cell-names = "leakage";
 
@@ -227,6 +228,8 @@ dmc: dmc {
 	dmc_opp_table: dmc-opp-table {
 		compatible = "operating-points-v2";
 
+		rockchip,evb-irdrop = <25000>;
+
 		opp-394000000 {
 			opp-hz = /bits/ 64 <394000000>;
 			opp-microvolt = <950000>;