linux-kernel - Re: ICH8 CF timeout (regression)...

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Message-ID: <46B30651.9030505@gmail.com>
Date:	Fri, 03 Aug 2007 19:41:21 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Daniel J Blueman <daniel.blueman@...il.com>
CC:	Mark Lord <lkml@....ca>, jgarzik@...ox.com,
	linux-ide@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: ICH8 CF timeout (regression)...

Daniel J Blueman wrote:
> The ICH8 south-bridge I have is the mobile variant and does come
> equipped with native parallel IDE - see page 447:
> http://download.intel.com/design/chipsets/datashts/31305603.pdf . I do
> see 35MB/s with DMA enabled from my CF on the 1 in 15 times the
> libata-kernel does work.
> 
> I can dump off and decode the configuration registers for the timing
> and bus master registers in the working and non-working libata cases,
> and the legacy ATA working case and see what's different.

Does the attached patch change anything?

-- 
tejun

View attachment "ich8-map-01b-update.patch" of type "text/x-patch" (478 bytes)