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authorRalf Baechle <ralf@linux-mips.org>2012-06-06 11:14:08 +0100
committerRalf Baechle <ralf@linux-mips.org>2012-07-23 13:55:55 +0100
commit497e5ff03f58583ada469db8a1aa34eced9dd63e (patch)
treed84a2d7ae3365ab8bc765dc8e8dda47caa65d419 /arch/mips/pci/fixup-malta.c
parentf7257d38ebb1bd3b8f80662c67ec7d502ac67421 (diff)
MIPS: Malta: Move PIIX4 PCI fixup to where it belongs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/pci/fixup-malta.c')
-rw-r--r--arch/mips/pci/fixup-malta.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/mips/pci/fixup-malta.c b/arch/mips/pci/fixup-malta.c
index 70073c98ed3..819622f93e9 100644
--- a/arch/mips/pci/fixup-malta.c
+++ b/arch/mips/pci/fixup-malta.c
@@ -101,3 +101,17 @@ static void __devinit malta_piix_func1_fixup(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB,
malta_piix_func1_fixup);
+
+/* Enable PCI 2.1 compatibility in PIIX4 */
+static void __devinit quirk_dlcsetup(struct pci_dev *dev)
+{
+ u8 odlc, ndlc;
+
+ (void) pci_read_config_byte(dev, 0x82, &odlc);
+ /* Enable passive releases and delayed transaction */
+ ndlc = odlc | 7;
+ (void) pci_write_config_byte(dev, 0x82, ndlc);
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_0,
+ quirk_dlcsetup);