diff --git a/fdts/tc4.dts b/fdts/tc4.dts
index 5ab58d5..cd2ef4d 100644
--- a/fdts/tc4.dts
+++ b/fdts/tc4.dts
@@ -65,7 +65,7 @@
 	gpu: gpu@2d000000 {
 		interrupts = <GIC_SPI 242 IRQ_TYPE_LEVEL_HIGH 0>;
 		interrupt-names = "IRQAW";
-		iommus = <&smmu_700 0x200>;
+		iommus = <&smmu_700 0x0>;
 	};
 
 	dsu-pmu {