linux-kernel - Re: [PATCH] ata: Fix DVD not dectected at some Haswell platforms

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Message-ID: <5109121F.1000205@mvista.com>
Date:	Wed, 30 Jan 2013 16:29:19 +0400
From:	Sergei Shtylyov <sshtylyov@...sta.com>
To:	Youquan Song <youquan.song@...el.com>
CC:	htejun@...il.com, ming.lei@...onical.com,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	seth.heasley@...el.com, jlee@...e.com, james.d.ralston@...el.com,
	Youquan Song <youquan.song@...ux.intel.com>
Subject: Re: [PATCH] ata: Fix DVD not dectected at some Haswell platforms

Hello.

On 30-01-2013 21:19, Youquan Song wrote:

> There is a quirk patch 5e5a4f5d5a08c9c504fe956391ac3dae2c66556d fix the 4 ports
> IDE controller 32bit PIO mode.
> Recently, the problem was showed at Haswell platform which includes 2 ports
> IDE controller.

> So introduce a qurik patch to disable 32bit PIO at this IDE controller.

> Signed-off-by: Youquan Song <youquan.song@...el.com>
> ---
>   drivers/ata/ata_piix.c |   14 +++++++++++++-
>   1 files changed, 13 insertions(+), 1 deletions(-)

> diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
> index ef773e1..1993e52 100644
> --- a/drivers/ata/ata_piix.c
> +++ b/drivers/ata/ata_piix.c
[...]
> @@ -326,7 +327,7 @@ static const struct pci_device_id piix_pci_tbl[] = {
>   	/* SATA Controller IDE (Lynx Point) */
>   	{ 0x8086, 0x8c01, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
>   	/* SATA Controller IDE (Lynx Point) */
> -	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
> +	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_snb },
>   	/* SATA Controller IDE (Lynx Point) */
>   	{ 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },

    Also, are you sure this one and the following Lynx Point controllers are 
not affected?

>   	/* SATA Controller IDE (Lynx Point-LP) */

MBR, Sergei

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