diff --git a/drivers/pci/pci-tegra.c b/drivers/pci/pci-tegra.c
index b6ccf8e..7c9dd80 100644
--- a/drivers/pci/pci-tegra.c
+++ b/drivers/pci/pci-tegra.c
@@ -366,15 +366,9 @@
 	return PCIBIOS_SUCCESSFUL;
 }
 
-static int tegra_pcie_res_start(struct pci_bus *bus, resource_size_t res_addr)
-{
-	return res_addr;
-}
-
 static struct pci_ops tegra_pcie_ops = {
 	.read = tegra_pcie_read_conf,
 	.write = tegra_pcie_write_conf,
-	.res_start = tegra_pcie_res_start,
 };
 
 static unsigned long tegra_pcie_port_get_pex_ctrl(struct tegra_pcie_port *port)
diff --git a/drivers/pci/pci_iomap.c b/drivers/pci/pci_iomap.c
index 2c58c0c..2f06e60 100644
--- a/drivers/pci/pci_iomap.c
+++ b/drivers/pci/pci_iomap.c
@@ -3,6 +3,7 @@
  *
  * (C) Copyright 2004 Linus Torvalds
  */
+#include <common.h>
 #include <linux/pci.h>
 #include <io.h>
 
@@ -24,6 +25,9 @@
 	struct pci_bus *bus = dev->bus;
 	resource_size_t start = pci_resource_start(dev, bar);
 
-	return (void *)bus->host->pci_ops->res_start(bus, start);
+	if (bus->host->pci_ops->res_start)
+		start = bus->host->pci_ops->res_start(bus, start);
+
+	return IOMEM(start);
 }
 EXPORT_SYMBOL(pci_iomap);
diff --git a/drivers/pci/pcie-designware-host.c b/drivers/pci/pcie-designware-host.c
index 6cc4b93..af37a50 100644
--- a/drivers/pci/pcie-designware-host.c
+++ b/drivers/pci/pcie-designware-host.c
@@ -335,15 +335,9 @@
 	return ret;
 }
 
-static int dw_pcie_res_start(struct pci_bus *bus, resource_size_t res_addr)
-{
-	return res_addr;
-}
-
 static struct pci_ops dw_pcie_ops = {
 	.read = dw_pcie_rd_conf,
 	.write = dw_pcie_wr_conf,
-	.res_start = dw_pcie_res_start,
 };
 
 static u8 dw_pcie_iatu_unroll_enabled(struct dw_pcie *pci)