Re: [PATCH] 2.5.24 IDE 97

Russell King (rmk@arm.linux.org.uk)
Thu, 4 Jul 2002 14:29:38 +0100

On Wed, Jul 03, 2002 at 12:22:11AM +0200, Bartlomiej Zolnierkiewicz wrote:
> This patch is a accumulation of ata-hosts-7/8/9/10/11, ata-autodma
> and ata-ata66_check patches previously posted on LKML.

drivers from disabling DMA mode on initialisation. This is Really Bad(tm)
since some revisions of some chipsets must _never_ be placed into DMA
mode due to hardware bugs. Even if the user selects CONFIG_IDEDMA_AUTO.

The code in sl82c105.c knows about the chipset revisions that this is
required for, and it looks like the code in ide-pci.c will override the
chipset if CONFIG_IDEDMA_AUTO is enabled.

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html


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