diff --git a/msm/eva/cvp_hfi.c b/msm/eva/cvp_hfi.c
index c4f60fa1fe..ab13eed27d 100644
--- a/msm/eva/cvp_hfi.c
+++ b/msm/eva/cvp_hfi.c
@@ -1958,7 +1958,7 @@ static int __hwfence_regs_map(struct iris_hfi_device *device)
 		rc = iommu_map(cb->domain, device->res->aon_iova,
 			device->res->aon_phyaddr,
 			device->res->aon_size,
-			IOMMU_READ | IOMMU_WRITE);
+			IOMMU_MMIO | IOMMU_READ | IOMMU_WRITE);
 		if (rc) {
 			dprintk(CVP_ERR, "map aon fail %d %#x %#x %#x\n",
 				rc, device->res->aon_iova,