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    SubjectRe: UDMA Support for ALI1543?

    I guess that is why this file appears from nowhere.

    /*
    * linux/drivers/block/alim15x3.c Version 0.04 Feb. 8, 1999
    *
    * Copyright (C) 1998-99 Michel Aubry, Maintainer
    * Copyright (C) 1998-99 Andrzej Krzysztofowicz, Maintainer
    * Copyright (C) 1998-99 Andre Hedrick, Integrater and Maintainer
    *
    * (U)DMA capable version of ali 1533/1543(C)
    *
    * Default disable (U)DMA on all devices execpt hard disks.
    * This measure of overkill is needed to stablize the chipset code.
    *
    */


    On Wed, 24 Feb 1999, Greg wrote:

    > On Wed, 24 Feb 1999, Andrzej Krzysztofowicz wrote:
    >
    > > > Anyone know of patches to support UDMA on an ALI1543 chipset? Motherboard
    > > > is an M5ALA Version 2.0
    > >
    > > Look at Andre's homepage:
    > >
    > > http://www.dyer.vanderbilt.edu/server/udma/
    >
    > I took a look at it and grabbed the patch, but I didn't see any reference
    > to the ALI 15xx series chips. The patch only appears to address ALI 14xx
    > series chips.

    The patch is complete redesign for the ide-driver to ease th integration
    of the old-balls into the mainstream with less pain in the future.
    The ALI series requires pre-init code to be run on the pci-bridge and the
    ide host adapter to get it to setup, before we can try to configure DMA
    transfers and of the BIOS is wacky and needs more stuff.

    > Any difference? I'm sort of skittish about just applying the patch on the
    > machine unless I know it supports the chipset...


    Add EXPERIMENTAL compile options................

    >
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    >

    Andre Hedrick
    The Linux IDE guy -- http://www.dyer.vanderbilt.edu/server/udma/




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