linux-kernel - PCMCIA not working on Panasonic Toughbook CF-29

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Message-ID: <CAFjuqNi+knSb9WVQOahCVFyxsiqoGgwoM7Z1aqDBebNzp_-jYw@mail.gmail.com>
Date:   Thu, 17 Oct 2019 05:40:42 +1100
From:   "Michael ." <keltoiboy@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux@...inikbrodowski.net, moklym@...il.com,
        tridentperfusion@...oo.com, bluerocksaddles@...litsonline.com
Subject: PCMCIA not working on Panasonic Toughbook CF-29

Due to filtering at the kernel email address it appears some emails
are being dropped by the kernel.org email address. I am sending this
for Trevor whose email bounced.

Hi Dominik,
Please see attached the outputs that you asked for in 2 files.
CF-29_MK5_2.6.32.txt is the requested outputs while running Antix
Linux M8.5 with Kernel 2.6.32. CF-29_MK5_4.9.160.txt is the requested
outputs running Antix Linux 17.4.1 with kernel 4.9.160.

Thank you in advance for your help!
Kind regards,Trevor Jacobs



-----Original Message-----
From: Dominik Brodowski <linux@...inikbrodowski.net>
To: Michael . <keltoiboy@...il.com>
Cc: linux-kernel <linux-kernel@...r.kernel.org>; Morgan Klym
<moklym@...il.com>; Trevor Jacobs <trevor_jacobs@....com>; Kris
Cleveland <tridentperfusion@...oo.com>; Jeff
<bluerocksaddles@...litsonline.com>
Sent: Tue, Oct 15, 2019 1:48 am
Subject: Re: PCMCIA not working on Panasonic Toughbook CF-29

On Tue, Oct 15, 2019 at 05:04:28PM +1100, Michael . wrote:
> Good afternoon kernel developers
> Please accept my apology for contacting you directly about this. A
> small group of friends, some of whom are CCed here, have come together
> to try and find a solution to a problem that originated with the
> demise of kernel 2.6:32. First some background to the issue. We are
> all users of Panasonic Toughbook CF-29 models (ranging from Mark 1
> through to Mark 5). These Toughbooks have 2 PCMCIA card slots which
> are used by a variety of people for different purposes. On the CF-29
> Mark 1 through to Mark 3 these slots work without problem. On the
> CF-29 Mark 4 and Mark 5 the last known kernel the top slot worked with
> was 2.6:32. This has been confirmed all all major distros by most of
> the small group of friends I mentioned earlier.
>
> Thinking it was just a kernel config issue I did some comparisons
> between Debian 6 (Squeeze), Debian 7 (Wheezy), Ubuntu 10.04, and
> Ubuntu 10.10. On all machines both slots functioned as they should
> with Debian 6 and Ubuntu 10.04 but the top slot stopped working on
> Mark 4 and Mark 5 machines on the next release with the next kernel. I
> also tested Ubuntu 10.04 and 10.10 with the 2.6:32 and 2.6:35 kernel
> and both slots worked with the 2.6:32 kernel but not the 2.6:35
> kernel.With my comparisons I merged the config from 2.6:32 into the
> current kernel for Debian 4.19 and rebuilt the kernel, no matter what
> configuration changes I made the top slot still doesn't function on
> Mark 4 and Mark 5 machines.
>
> This issue, and its apparent start, has been confirmed on all major
> distro family groups. So this brings me, actually the small group of
> dedicated Linux users who own Panasonic Toughbook CF-29s, to contact
> you to ask for help in resolving this issue. I have some questions,
> and I realise the 2.6:32 kernel is long gone now but I'm hoping this
> is not a lost cause, what changes would have occurred between 2.6:32
> and 2.6:33 that would have stopped the hardware working on Mark 4 and
> Mark 5 CF-29 Toughbooks but not Mark 1 through to Mark 3? Would it be
> possible to correct the problem so that the hardware on our machines
> works as it should. While we are not kernel devs or even programmers
> we are enthusiasts who love Linux and our machines and we are hoping
> that together with you and the kernel dev group we can fix this issue
> together.
>
> I have attached various tar.gz files with ls* outputs so you can see
> the information we have so far. Thank you for taking the time to read
> this.

Is this with 16-bit PCMCIA cards, or with 32-bit CardBus cards? Either case,
please provide the output of

    dmesg

    lspci -vvv

and

    lspcmcia -v -v

(ideally all for a working and non-working configuration).

Thanks,
    Dominik

View attachment "CF-29_MK5_2.6.32.txt" of type "text/plain" (57085 bytes)

View attachment "CF-29_MK5_4.9.160.txt" of type "text/plain" (133996 bytes)