---

yaml --- r: 167383 b: refs/heads/master c: 1f56f4a h: refs/heads/master i: 167381: 4048dbf 167379: 1aeb182 167375: f7ae91a v: v3
git-mirror · Oct 7, 2009 · d4fc864 · d4fc864
1 parent 869f4f9
commit d4fc864
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Showing 3 changed files with 21 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e13cdbd71fe12c4e191b737c4a3dbfdb4b2de03b
+refs/heads/master: 1f56f4a2b4d12c1c348cab23024024396ec7cddc
diff --git a/trunk/drivers/pci/quirks.c b/trunk/drivers/pci/quirks.c
@@ -670,6 +670,25 @@ static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8235,	quirk_vt8235_acpi);
 
+/*
+ * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
+ *	Disable fast back-to-back on the secondary bus segment
+ */
+static void __devinit quirk_xio2000a(struct pci_dev *dev)
+{
+	struct pci_dev *pdev;
+	u16 command;
+
+	dev_warn(&dev->dev, "TI XIO2000a quirk detected; "
+		"secondary bus fast back-to-back transfers disabled\n");
+	list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
+		pci_read_config_word(pdev, PCI_COMMAND, &command);
+		if (command & PCI_COMMAND_FAST_BACK)
+			pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
+	}
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
+			quirk_xio2000a);
 
 #ifdef CONFIG_X86_IO_APIC 
 

diff --git a/trunk/include/linux/pci_ids.h b/trunk/include/linux/pci_ids.h
@@ -776,6 +776,7 @@
 #define PCI_DEVICE_ID_TI_X515		0x8036
 #define PCI_DEVICE_ID_TI_XX12		0x8039
 #define PCI_DEVICE_ID_TI_XX12_FM	0x803b
+#define PCI_DEVICE_ID_TI_XIO2000A	0x8231
 #define PCI_DEVICE_ID_TI_1130		0xac12
 #define PCI_DEVICE_ID_TI_1031		0xac13
 #define PCI_DEVICE_ID_TI_1131		0xac15