diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 2fbf60eac610..63357f07ca43 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1711,9 +1711,33 @@ static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
 			quirk_msi_ht_cap);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS,
-			PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
-			quirk_msi_ht_cap);
+
+
+/*
+ *  Force enable MSI mapping capability on HT bridges
+ */
+static void __devinit quirk_msi_ht_cap_enable(struct pci_dev *dev)
+{
+	int pos, ttl = 48;
+
+	pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
+	while (pos && ttl--) {
+		u8 flags;
+
+		if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) {
+			printk(KERN_INFO "PCI: Enabling HT MSI Mapping on %s\n",
+			       pci_name(dev));
+
+			pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
+					      flags | HT_MSI_FLAGS_ENABLE);
+		}
+		pos = pci_find_next_ht_capability(dev, pos,
+						  HT_CAPTYPE_MSI_MAPPING);
+	}
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
+			 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
+			 quirk_msi_ht_cap_enable);
 
 /* The nVidia CK804 chipset may have 2 HT MSI mappings.
  * MSI are supported if the MSI capability set in any of these mappings.