1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 29a05759a294..692dd1b264fb 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -699,6 +699,9 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
                 dev_dbg(pci->dev, "iATU unroll: %s\n",
                         pci->iatu_unroll_enabled ? "enabled" : "disabled");
 
+                if (pci->iatu_unroll_enabled && !pci->atu_base)
+                        pci->atu_base = pci->dbi_base + DEFAULT_DBI_ATU_OFFSET;
+
                 dw_pcie_prog_outbound_atu(pci, PCIE_ATU_REGION_INDEX0,
                                           PCIE_ATU_TYPE_MEM, pp->mem_base,
                                           pp->mem_bus_addr, pp->mem_size);