[Patch]Backport 82801CAM IDE support to 2.4.x

From: Hu Gang (hugang@soulinfo.com)
Date: Sun Sep 22 2002 - 00:48:22 EST

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Hello all:

At Thu, 12 Sep 2002 09:19:29 +0800, I sended this patch, Now it works fine in my machine. It make faster(~5X) than without it. Please apply.

@@@@@@@@@@@@@@@@ with patch @@@@@@@@@@@@@@
# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 64 MB in 15.76 seconds = 4.06 MB/sec
# dmesg
*** Snip ****
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH3M: IDE controller on PCI bus 00 dev f9
PCI: Device 00:1f.1 not available because of resource collisions
ICH3M: (ide_setup_pci_device:) Could not enable device.
*** Snip ****

@@@@@@@@@@@@@@@@ with patch @@@@@@@@@@@@@@@@@@
# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 64 MB in 3.29 seconds = 19.45 MB/sec
# dmesg
**** Snip ***

ICH3M: IDE controller on PCI bus 00 dev f9
PCI: Enabling device 00:1f.1 (0005 -> 0007)
PCI: Assigned IRQ 5 for device 00:1f.1
ICH3M: chipset revision 2
***** Snip *****
(thanks for Frederic Garzon <garz@free.fr> reported)

I we can add it into 2.4.X kernel. here is it again.
----------------------------------------------

-- - Hu Gang

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