linux-kernel - Re: [PATCH] ata_piix: add Asus Eee 701 controller to short cable list

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Message-ID: <481168F2.4080000@garzik.org>
Date:	Fri, 25 Apr 2008 01:15:30 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Dan McGee <dpmcgee@...il.com>
CC:	htejun@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ata_piix: add Asus Eee 701 controller to short cable
 list

Dan McGee wrote:
> The drive is directly soldered to the controller, so there is no cable at
> all. Remove the 40-wire assumption so the drive can operate at max speed.
> 
> Before patch:
> $ dd if=/dev/sda of=/dev/null bs=2M count=64 iflag=direct
> 134217728 bytes (134 MB) copied, 5.29612 s, 25.3 MB/s
> 
> After patch:
> $ dd if=/dev/sda of=/dev/null bs=2M count=64 iflag=direct
> 134217728 bytes (134 MB) copied, 3.94955 s, 34.0 MB/s
> 
> Signed-off-by: Dan McGee <dpmcgee@...il.com>
> ---
>  drivers/ata/ata_piix.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
> index b7c38ee..ea2c764 100644
> --- a/drivers/ata/ata_piix.c
> +++ b/drivers/ata/ata_piix.c
> @@ -573,6 +573,7 @@ static const struct ich_laptop ich_laptop[] = {
>  	{ 0x27DF, 0x1043, 0x1267 },	/* ICH7 on Asus W5F */
>  	{ 0x27DF, 0x103C, 0x30A1 },	/* ICH7 on HP Compaq nc2400 */
>  	{ 0x24CA, 0x1025, 0x0061 },	/* ICH4 on ACER Aspire 2023WLMi */
> +	{ 0x2653, 0x1043, 0x82D8 },	/* ICH6M on Asus Eee 701 */

applied


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