diff --git a/components/drivers/pci/pci.c b/components/drivers/pci/pci.c
index e4d287b35307..d101b87abb2e 100644
--- a/components/drivers/pci/pci.c
+++ b/components/drivers/pci/pci.c
@@ -712,6 +712,19 @@ rt_err_t rt_pci_device_alloc_resource(struct rt_pci_host_bridge *host_bridge,
     return err;
 }
 
+rt_ubase_t rt_pci_get_addr(struct rt_pci_device *pdev, rt_ubase_t flags)
+{
+    for (int i = 0; i < RT_PCI_BAR_NR_MAX; i++)
+    {
+        if (!pdev->resource[i].base)
+            break;
+
+        if (pdev->resource[i].flags == flags)
+            return pdev->resource[i].base;
+    }
+    return 0;
+}
+
 void rt_pci_enum_device(struct rt_pci_bus *bus,
         rt_bool_t (callback(struct rt_pci_device *, void *)), void *data)
 {