Attachment 153804 Details for Bug 226947 – RHEL4.6: set it back to ahci mode

[patch] RHEL4.6: set it back to ahci mode

226947.patch (text/plain), 1.58 KB, created by Prarit Bhargava on 2007-04-30 15:39:22 UTC

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Creator: Prarit Bhargava

Created: 2007-04-30 15:39:22 UTC

Size: 1.58 KB

patch

obsolete

>Backport of
>
>http://marc.info/?l=git-commits-head&m=116669194105116&w=2
>
>Add IDE quirk for SB600 to set controller back to ACHI mode when booted in
>Legacy Mode.
>
>Resolves BZ 226947.
>
>Successfully tested by me on HP5750.
>
>--- linux-2.6.9.orig/drivers/pci/quirks.c	2007-04-30 05:27:22.000000000 -0400
>+++ linux-2.6.9/drivers/pci/quirks.c	2007-04-30 06:28:10.000000000 -0400
>@@ -626,6 +626,22 @@ static void __init quirk_mediagx_master(
> }
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX,	PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
> 
>+static void __devinit quirk_sb600_sata(struct pci_dev *pdev)
>+{
>+	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 = PCI_CLASS_STORAGE_SATA_AHCI;
>+	}
>+}
>+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata);
>+
> /*
>  * As per PCI spec, ignore base address registers 0-3 of the IDE controllers
>  * running in Compatible mode (bits 0 and 2 in the ProgIf for primary and
>--- linux-2.6.9.orig/include/linux/pci_ids.h	2007-04-30 05:27:29.000000000 -0400
>+++ linux-2.6.9/include/linux/pci_ids.h	2007-04-30 06:20:13.000000000 -0400
>@@ -15,6 +15,7 @@
> #define PCI_CLASS_STORAGE_FLOPPY	0x0102
> #define PCI_CLASS_STORAGE_IPI		0x0103
> #define PCI_CLASS_STORAGE_RAID		0x0104
>+#define PCI_CLASS_STORAGE_SATA_AHCI	0x10601
> #define PCI_CLASS_STORAGE_OTHER		0x0180
> 
> #define PCI_BASE_CLASS_NETWORK		0x02

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Attachments on bug 226947: 147192 | 153804 | 154657 | 155117