Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...

[linux-imx.git] / arch / x86 / kernel / early-quirks.c

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 94ab6b90dd3fabdaf2856a5d7fc2abfd4ed2af88..63bdb29b25497edfb0a97ec7cfb9aa5b746d200a 100644 (file)
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -196,15 +196,23 @@ static void __init ati_bugs_contd(int num, int slot, int func)
 static void __init intel_remapping_check(int num, int slot, int func)
 {
        u8 revision;
+       u16 device;
 
+       device = read_pci_config_16(num, slot, func, PCI_DEVICE_ID);
        revision = read_pci_config_byte(num, slot, func, PCI_REVISION_ID);
 
        /*
-        * Revision 0x13 of this chipset supports irq remapping
-        * but has an erratum that breaks its behavior, flag it as such
+        * Revision 13 of all triggering devices id in this quirk have
+        * a problem draining interrupts when irq remapping is enabled,
+        * and should be flagged as broken.  Additionally revisions 0x12
+        * and 0x22 of device id 0x3405 has this problem.
         */
        if (revision == 0x13)
                set_irq_remapping_broken();
+       else if ((device == 0x3405) &&
+           ((revision == 0x12) ||
+            (revision == 0x22)))
+               set_irq_remapping_broken();
 
 }
 
@@ -239,6 +247,8 @@ static struct chipset early_qrk[] __initdata = {
          PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs_contd },
        { PCI_VENDOR_ID_INTEL, 0x3403, PCI_CLASS_BRIDGE_HOST,
          PCI_BASE_CLASS_BRIDGE, 0, intel_remapping_check },
+       { PCI_VENDOR_ID_INTEL, 0x3405, PCI_CLASS_BRIDGE_HOST,
+         PCI_BASE_CLASS_BRIDGE, 0, intel_remapping_check },
        { PCI_VENDOR_ID_INTEL, 0x3406, PCI_CLASS_BRIDGE_HOST,
          PCI_BASE_CLASS_BRIDGE, 0, intel_remapping_check },
        {}