diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index b5c8707f4ac77ea92177e281f94bfd83c6ffa167..15f9b7c9e4d38e93a52864a953e12d4172602797 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -1660,6 +1660,7 @@ static int ntb_atom_detect(struct ntb_device *ndev)
 	u32 ppd;
 
 	ndev->hw_type = BWD_HW;
+	ndev->limits.max_mw = BWD_MAX_MW;
 
 	rc = pci_read_config_dword(ndev->pdev, NTB_PPD_OFFSET, &ppd);
 	if (rc)