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Red Hat Bugzilla – Attachment 298778 Details for
Bug 432652
RHEL5.2: Modify SATA IDE mode quirk
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[patch]
ahci driver side fix patch
ahci_resume_forceahci.patch (text/plain), 833 bytes, created by
Richard Zhao
on 2008-03-21 08:39:44 UTC
(
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Description:
ahci driver side fix patch
Filename:
MIME Type:
Creator:
Richard Zhao
Created:
2008-03-21 08:39:44 UTC
Size:
833 bytes
patch
obsolete
>--- linux-2.6.18.i386.orig/drivers/ata/ahci.c 2008-03-20 15:12:18.000000000 +0800 >+++ linux-2.6.18.i386/drivers/ata/ahci.c 2008-03-20 16:30:11.000000000 +0800 >@@ -1943,6 +1943,22 @@ > struct ata_host *host = dev_get_drvdata(&pdev->dev); > int rc; > >+ if (pdev->vendor == PCI_VENDOR_ID_ATI && >+ (pdev->device == 0x4380 || pdev->device == 0x4390)) { >+ 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); >+ pci_write_config_byte(pdev, 0xa, 6); >+ pci_write_config_byte(pdev, 0x40, tmp); >+ >+ pdev->class = PCI_CLASS_STORAGE_SATA_AHCI; >+ printk(KERN_INFO "PCI: set SATA to AHCI mode\n"); >+ } >+ } >+ > rc = ata_pci_device_do_resume(pdev); > if (rc) > return rc;
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