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Date: Wed, 27 Feb 2002 10:21:05 -0800 (PST)
From: Andre Hedrick <andre@linuxdiskcert.org>
To: Gunther Mayer <gunther.mayer@gmx.net>,
        Marcelo Tosatti <marcelo@conectiva.com.br>
cc: Herbert Rosmanith <herp@wildsau.idv-edu.uni-linz.ac.at>,
        linux-kernel@vger.kernel.org
Subject: Re: pcmcia problems with IDE & cardbus
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Gunther,

I gave this the heads up and verified a long time ago.
I am puzzled why this has not been adopted.
It at least made it into 2.5.3.

Marcelo, please take this fix!


On Wed, 27 Feb 2002, Gunther Mayer wrote:

> Herbert Rosmanith wrote:
> 
> > hi,
> >
> > I've been trying to get a CompactFlash act as an IDE-drive, 2nd or 3rd
> > ide-channel, that is, IDE1 or IDE2 resp. Didn't work. Seems to be driver
> > related.
> >
> > I downloaded 2.4.18 and pcmcia-3.1.31, from the later I got "ide_cs.o"
> >
> > The hardware I am using a a two socket PCI to PCMCIA bridge:
> >
> > hale-bopp:~ # cat /proc/interrupts
> > [...]
> >  10:          1          XT-PIC  Texas Instruments PCI1221, Texas Instruments PCI1221 (#2)
> > ...
> >    : hde: SanDisk SDCFB-16, ATA DISK drive
> >    : ide2: Disabled unable to get IRQ 10.
> >   ...
> >    : ide_cs: ide_register() at 0x100 & 0x10e, irq 10 failed
> >    : Trying to free nonexistent resource <00000100-0000010f>
> >
> > "unable to get IRQ 10" is somewhat funny, since IRQ-10 is used by
> > the cardbus device. what I don't understand is if the IDE-drive
> > sould get its own interrupt or not.
> 
> With PCI-PCMCIA bridges you only have _one_ PCI irq, but linux
> falsely fails to share irq in this case.
> 
> This patch exists since 6 months but due to communiation problems
> between Linux and IDE maintainer nobody cared to include it.
> 
> Find my patch for 2.4.15 appended.
> -
> Gunther
> 
> 
> 

Andre Hedrick
Linux Disk Certification Project                Linux ATA Development

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