PCI: AMD SATA IDE mode quirk

PCI: modify SATA IDE mode quirk
When initialize and resume, SB600/700/800 need to set SATA mode
correctly.

Signed-off-by: Crane Cai <crane.cai@amd.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 0a953d43b9a207961a6d41dbb1872d105f978982..f0b3b7166b464f10252ed71b5ce5edb755864264 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -867,13 +867,13 @@ static void quirk_disable_pxb(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82454NX,    quirk_disable_pxb);
 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)
+static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
 {
-       /* set sb600 sata to ahci mode */
-       if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
-               u8 tmp;
+       /* set sb600/sb700/sb800 sata to ahci mode */
+       u8 tmp;
 
+       pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
+       if (tmp == 0x01) {
                pci_read_config_byte(pdev, 0x40, &tmp);
                pci_write_config_byte(pdev, 0x40, tmp|1);
                pci_write_config_byte(pdev, 0x9, 1);
@@ -881,10 +881,13 @@ static void __devinit quirk_sb600_sata(struct pci_dev *pdev)
                pci_write_config_byte(pdev, 0x40, tmp);
 
                pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
+               dev_info(&pdev->dev, "set SATA to AHCI mode\n");
        }
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_sb600_sata);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
 
 /*
  *     Serverworks CSB5 IDE does not fully support native mode