diff --git a/arch/riscv/boot/dts/sophgo/sg2042.dtsi b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
index 9fddf3f0b3b9..3af770549742 100644
--- a/arch/riscv/boot/dts/sophgo/sg2042.dtsi
+++ b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
@@ -417,6 +417,7 @@ pcie_rc0: pcie@7060000000 {
 			vendor-id = <0x1f1c>;
 			device-id = <0x2042>;
 			cdns,no-bar-match-nbits = <48>;
+			dma-coherent;
 			msi-parent = <&msi>;
 			status = "disabled";
 		};
@@ -439,6 +440,7 @@ pcie_rc1: pcie@7060800000 {
 			vendor-id = <0x1f1c>;
 			device-id = <0x2042>;
 			cdns,no-bar-match-nbits = <48>;
+			dma-coherent;
 			msi-parent = <&msi>;
 			status = "disabled";
 		};
@@ -461,6 +463,7 @@ pcie_rc2: pcie@7062000000 {
 			vendor-id = <0x1f1c>;
 			device-id = <0x2042>;
 			cdns,no-bar-match-nbits = <48>;
+			dma-coherent;
 			msi-parent = <&msi>;
 			status = "disabled";
 		};
@@ -483,6 +486,7 @@ pcie_rc3: pcie@7062800000 {
 			vendor-id = <0x1f1c>;
 			device-id = <0x2042>;
 			cdns,no-bar-match-nbits = <48>;
+			dma-coherent;
 			msi-parent = <&msi>;
 			status = "disabled";
 		};