PCI: ATI sb600 sata quirk

[linux-2.6] / drivers / pci / quirks.c

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 8a2db01b903ed19638806ffce24ed0ee9987d7e5..8f0322d6f3bf473fd60094073bbd353ed834eaa3 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -850,6 +850,23 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,       PCI_DEVICE_ID_INTEL_82454NX,    quirk_
 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_82454NX,    quirk_disable_pxb );
 
 
+static void __devinit quirk_sb600_sata(struct pci_dev *pdev)
+{
+       /* set sb600 sata to ahci mode */
+       if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
+               u8 tmp;
+
+               pci_read_config_byte(pdev, 0x40, &tmp);
+               pci_write_config_byte(pdev, 0x40, tmp|1);
+               pci_write_config_byte(pdev, 0x9, 1);
+               pci_write_config_byte(pdev, 0xa, 6);
+               pci_write_config_byte(pdev, 0x40, tmp);
+
+               pdev->class = 0x010601;
+       }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata);
+
 /*
  *     Serverworks CSB5 IDE does not fully support native mode
  */