linux-kernel - Re: -mm merge plans for 2.6.20

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Date:	Thu, 07 Dec 2006 03:19:40 +0800
From:	Conke Hu <conke.hu@...il.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: -mm merge plans for 2.6.20

On Mon, 2006-12-04 at 21:41 -0800, Andrew Morton wrote:
> On Mon, 04 Dec 2006 23:56:42 -0500
> Jeff Garzik <jeff@...zik.org> wrote:
> 
> > Andrew Morton wrote:
> > > via-pata-controller-xfer-fixes.patch
> > > via-pata-controller-xfer-fixes-fix.patch
> > 
> > Tejun's 3d3cca37559e3ab2b574eda11ed5207ccdb8980a has been ack'd by the 
> > reporter as fixing things, so these two shouldn't be needed.
> 
> OK thanks, I dropped it.
> 
> > 
> > > libata_resume_fix.patch
> > 
> > I thought this was resolved long ago?  Are there still open reports that 
> > this solves, where upstream doesn't work?
> 
> Heck, I don't know.
> 
> > 
> > > ahci-ati-sb600-sata-support-for-various-modes.patch
> > 
> > With the PCI quirk, I thought ATI was finally sorted?
> 
> Was it?  I don't know that either.
> 
> I'll drop these too.
> -

Hi Jeff, Andrew
    The following patch is ATI's final solution. It was ACKed by Alan.
    Jeff, you're the maintainer of libata, but this patch is based on
pci/quirks.c, so I don't know who will apply this patch? You or somebody
else?
    Andrew, could you please drop ATI's previous patch and add this one
in next -mm patch? The previous patch I sent
(ahci-ati-sb600-sata-support-for-various-modes.patch) is not as good as
this one :)


Best regards,
Conke @AMD/ATI


[------------------PATCH------------------]

--- linux-2.6.19-rc6-git4/drivers/pci/quirks.c.orig     2006-11-23
19:45:49.000000000 +0800
+++ linux-2.6.19-rc6-git4/drivers/pci/quirks.c  2006-11-23
19:34:23.000000000 +0800
@@ -795,6 +795,25 @@ static void __init quirk_mediagx_master(
       }
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX,
PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
+
+#if defined(CONFIG_SATA_AHCI) || defined(CONFIG_SATA_AHCI_MODULE)
+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);
+#endif

 /*
 * As per PCI spec, ignore base address registers 0-3 of the IDE
controllers

-
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