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Subject[PATCH] PCI subsystem: AMD SATA IDE mode quirk
Date
From
From: Crane Cai <crane.cai@amd.com>

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>
--------------------------------------------
--- a/drivers/pci/quirks.c 2007-09-24 14:16:32.000000000 -0400
+++ b/drivers/pci/quirks.c 2008-02-02 11:23:47.000000000 -0500
@@ -859,12 +859,13 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IN
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);
@@ -872,10 +873,13 @@ static void __devinit quirk_sb600_sata(s
pci_write_config_byte(pdev, 0x40, tmp);

pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
+ printk(KERN_INFO "PCI: 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



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