diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 6e134c7..d8418b5 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -266,6 +266,11 @@
 
 	domain->priv = as;
 
+	/* setup aperture */
+	domain->geometry.aperture_start = 0;
+	domain->geometry.aperture_end = 0xffffffff;
+	domain->geometry.force_aperture = true;
+
 	return 0;
 }