diff --git a/target/linux/sunxi/cortexa53/config-6.1 b/target/linux/sunxi/cortexa53/config-6.1
index 108ab35c32..7354161ec7 100644
--- a/target/linux/sunxi/cortexa53/config-6.1
+++ b/target/linux/sunxi/cortexa53/config-6.1
@@ -55,6 +55,8 @@ CONFIG_GENERIC_FIND_FIRST_BIT=y
 CONFIG_GENERIC_MSI_IRQ=y
 CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
 CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
+CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
+# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
 CONFIG_MDIO_BUS_MUX=y
 CONFIG_MICREL_PHY=y
 CONFIG_MODULES_USE_ELF_RELA=y