PCMCIA

PCMCIA

[Gerhard TAEUBL]

Hi again!

Maybe I frogot some information:

We need for a project a second 100MBit interface, so our soloution will be to use a PCMCIA card. Does there exists an actual compatibility list which cards works, which not? I only found a list from 2000 or 2001.

Please help :-)


We are using MPC860T with one possible PCMCIA port and Montavista kernel 2.4.2.
So it is possible to use every PCMCIA card, which is supported by Linux?

Again, please help...

best regards
Gerhard

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Re: PCMCIA

[Magnus Damm]

Hi,

> We are using MPC860T with one possible PCMCIA port and Montavista kernel 2.4.2.
> So it is possible to use every PCMCIA card, which is supported by Linux?

Not all cards worked "right out of the box" when I wrote the socket driver.
And I don't think that all of them will work today either.
There are many things that might cause problems - endian unawareness, timing stuff etc.

So you will not be able to install a set of RPMs on your hardware and then just
insert any PCMCIA card and hear bleep-bleep and everything works. No.
But with some hacking and some knowledge of Linux and PCMCIA you will probably
find out a collection of PCMCIA cards that will work ok.

I don't know how many PCMCIA cards that Linux/pcmcia-cs supports, but I guess
that everyone uses CARDBUS today instead of PCMCIA. 32 bits are much more fun.

I think that I read that someone was planning on writing a list, but I don't
remeber seeing any actual output. Or maybe I missed that.

There are (were anyhow) many things that differs between a common PC and
the Linux implementation on a embedded powerpc box. The IDE stuff, serial
ports and other things are treated different. And it all depends on the
variant and version of your kernel. What fun.
And the status of your Montavista kernel - I have no idea.

Have you modified the socket driver to fit your hardware?
You will not be able to use any PCMCIA card without correct configuration.

Hope this leads you in the right direction.

/ magnus

On Fri, 07 Mar 2003 08:32:47 +0100
"Gerhard TAEUBL" <Gerhard.TAEUBL@frequentis.com> wrote:

>
> Hi again!
>
> Maybe I frogot some information:
>
> We need for a project a second 100MBit interface, so our soloution will be to use a PCMCIA card. Does there exists an actual compatibility list which cards works, which not? I only found a list from 2000 or 2001.
>
> Please help :-)
>
>
> We are using MPC860T with one possible PCMCIA port and Montavista kernel 2.4.2.
> So it is possible to use every PCMCIA card, which is supported by Linux?
>
> Again, please help...
>
> best regards
> Gerhard
>
>

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Re: PCMCIA

[Wolfgang Denk]

In message <se68594f.071@mail.frequentis.com> you wrote:
>
> We need for a project a second 100MBit interface, so our soloution will be to use a PCMCIA card. Does there exists an actual compatibility list which cards works, which not? I only found a list from 2000 or 2001.

Why do you think you need a second 100MBit interface? The performance
of  a  MPC8xx  is  a  bit  limited,  so  don't  expect  too  much  of
throughput...

Probably a 10 Mbps interface on a SCC would be the easier solution.

> We are using MPC860T with one possible PCMCIA port and Montavista kernel 2.4.2.

I cannot speak about MV's 2.4.2 kernel, except that it's  pretty  old
and  I  doubt  it  has  full PCMCIA support. But the MPC860T supports
_two_ PCMCIA slots.

> So it is possible to use every PCMCIA card, which is supported by Linux?

You will not get any guarantees. Try it out. The (few!) network cards
we tested so far worked fine.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
C++ was an interesting and valuable experiment, but we've learned its
lessons and it's time to move on.
                            - Peter Curran in <DCqM4z.BxB@isgtec.com>

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Re: PCMCIA

[Wolfgang Denk]

In message <se6c604d.015@mail.frequentis.com> you wrote:
> Thanks for help, with a powerbook, thats a nice hint, at the moment we
> have 'only' an imac. O.K.

An iMac is ok, too. Any native PPC system will  do  -  it's  just  to
verify  that  the  Linux  driver  is  working  in  general,  and on a
big-endian system, too.

> I can remember you have an own uart device driver, not the same like in
> the Montavista tree, and we have a 'special' feature to switch between
> RS232 and RS422/485.. but that is not your problem ... :-)

Our driver is highly configurable, maybe it's easier than you think.


Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
A stone was placed at a ford in a river with the inscription:
"When this stone is covered it is dangerous to ford here."

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Re: PCMCIA

[Gerhard TAEUBL]

Hi!

Well this issue we discussed with our project developer...
They want to use 2 Ethernetports for a double ethernet network, for saftey issues. We know, that we never get the full 100MBit on a MPC860 however, the point is, that our hardware don't get much data, but other components (PCs) in the network needs this bandwidth. Beside this to use a SCC for Ethernet we need an hardware redesign with a lot of software adaptions....

We have only one PCMCIA Port realised in HW.

So the (your) DENX Kernel (2.4.4) has PCMCIA support implemented yet? So this is maybe a reason for us to switch over.. (Uhuhu I hope this will not too much work to adapt the configuration again.... :-)

So do you have a list which Ethernet cards work? Or is it only the Xircom card that works?

Gerhard

>>> Wolfgang Denk <wd@denx.de> 03/07/03 08:53pm >>>
In message <se68594f.071@mail.frequentis.com> you wrote:
>
> We need for a project a second 100MBit interface, so our soloution will be to use a PCMCIA card. Does there exists an actual compatibility list which cards works, which not? I only found a list from 2000 or 2001.

Why do you think you need a second 100MBit interface? The performance
of  a  MPC8xx  is  a  bit  limited,  so  don't  expect  too  much  of
throughput...

Probably a 10 Mbps interface on a SCC would be the easier solution.

> We are using MPC860T with one possible PCMCIA port and Montavista kernel 2.4.2.

I cannot speak about MV's 2.4.2 kernel, except that it's  pretty  old
and  I  doubt  it  has  full PCMCIA support. But the MPC860T supports
_two_ PCMCIA slots.

> So it is possible to use every PCMCIA card, which is supported by Linux?

You will not get any guarantees. Try it out. The (few!) network cards
we tested so far worked fine.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
C++ was an interesting and valuable experiment, but we've learned its
lessons and it's time to move on.
                            - Peter Curran in <DCqM4z.BxB@isgtec.com>


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: PCMCIA

[Wolfgang Denk]

In message <se6c5894.038@mail.frequentis.com> you wrote:
>
> So the (your) DENX Kernel (2.4.4) has PCMCIA support implemented yet?

Yes.

> So this is maybe a reason for us to switch over.. (Uhuhu I hope this
> will not too much work to adapt the configuration again.... :-)

I don't think so. It's just the  usual  files  where  board-dependend
configs have to be added.

> So do you have a list which Ethernet cards work? Or is it only the Xircom card that works?

We also tested with a 3com card, but I don't remember the exact  type
(sorry,  I  don't  have  this  card  any  more). In general my PCMCIA
experience is that all cards that work in a "normal" (x86) PC  worked
fine  on  the  8xx,  too.  Ideally  you  test  before  buying using a
PowerBook...

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Too many people are ready to carry the stool when the piano needs  to
be moved.

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PCMCIA

[Gerhard TAEUBL]

Hi!

Yet another PCMCIA question :-)

We need for a project a second 100MBit interface, so our soloution will be to use a PCMCIA card. Does there exists an actual compatibility list which cards works, which not? I only found a list from 2000 or 2001.

Please help :-)

Thx in advance

Gerhard

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PCMCIA

[Ryan Boder]

Does the rev-15 kernel from BenH's website support pcmcia flash memory
cards?

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PCMCIA

[Nguyen Xuan Hoang]

Hi All,

I love this mail list, you are all very friendly... could anyone tell which PCMCIA device have worked with RPX Lite board I am interrest in Modem and HDD PCMCIA
where can I find the driver... Yes, I have gone though the mail list but as Dan said we seldom hear from the people who are happy...

Best regards
Hoang

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Re: PCMCIA

[Jo-Ellen F. Mathews]

On Thu, 23 Dec 1999, Nguyen Xuan Hoang wrote:

>
> Hi All,
>
> I love this mail list, you are all very friendly... could anyone tell
> which PCMCIA device have worked with RPX Lite board I am interrest in
> Modem and HDD PCMCIA where can I find the driver... Yes, I have gone
> though the mail list but as Dan said we seldom hear from the people who
> are happy...

Greetings Hoang and list members,

I will certainly chime in with a happy story.  We do have our IEEE 802.11B
11Mbps wireless LAN PCMCIA device driver working on the RPX Lite (MPC823).
If anyone is attending the O'Reilly Open Source Software Convention (July
17-20, 2000), we'll be doing a wireless LAN tutorial based on our
linux-wlan Open Source project where we will demo the RPX Lite running as
a wireless device with an 11Mbps wireless LAN PCMCIA card in it.

This effort of successfully porting our linux-wlan driver to the RPX Lite
was because of the generous help of people on this list.  It wasn't easy,
and without the help of people on this list, we might still be banging our
heads against the wall.  :-)

I used Magnus Damm's PCMCIA code (that he so generously offered) and the
1.0 distribution of MontaVista's Hard Hat Linux.  I had to make two minor
changes to Magnus' code so it would work with 3.3 volt PCMCIA devices.
Additionally, there were a few edits to kernel source as directed by
Magnus. All of what I did is documented on our ftp site.

While I can't help you with device drivers for the PCMCIA devices you
mentioned, if you need a starting point for PCMCIA support, you're welcome
to download my notes and the files I used:

ftp://ftp.absoval.com/pub/rpxlite

We have moved our web site, and should anyone run into any trouble
accessing our web site or ftp site, e-mail me at 'jo-ellen@linux-wlan.com'
telling me which files you need.

>From someone who is VERY HAPPY (and may have 'accidentally' forgotten to
tell the list),
Jo-Ellen Mathews

---------------------------------------------------------
Jo-Ellen F. Mathews

AbsoluteValue Systems      Web:    http://www.linux-wlan.com
P.O. Box 941149            e-mail: jo-ellen@linux-wlan.com
Maitland, FL 32794-1149    Phone:  407.644.8582
USA                        Fax:    407.539.1294


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