PCMCIA Modem/Serial Cards and MPC8xx?

Wolfgang Denk wd at denx.de
Wed Aug 27 20:44:31 EST 2003

Dear Steven,

in message <3F4C7713.2030703 at imc-berlin.de> you wrote:
> > I am not at my desk but can tell you that you will have to change the
> > options for serial driver.  I have use the PCMCIA for serial ports but I
> > have setup both the MPC8xx uarts and a standard 16550 uart chip to work in
> > the same Linux kernel.
> Could you please give my a pointer how you did that?
> Did you have MPC8xx uarts _and_ a standard 16550 uart _and_ PCMCIA?

Yes, we support MPX8xx UART, standard serial driver  including  16550
UART,  and  PCMCIA.  See our linux-2.4 kernel tree. It should be very
easy to extract the relevant patch and  to  apply  it  to  any  other

> Hmm. But even if I define one. The kernel won't find a UART if it's on
> PCMCIA since PCMCIA is started much later... ?

The PCMCIA Card Services will take care of that.

> Any hints?

See http://www.denx.de/twiki/bin/view/DULG/KernelConfigurationForPCMCIA

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
"The whole problem with the world is  that  fools  and  fanatics  are
always so certain of themselves, but wiser people so full of doubts."
- Bertrand Russell

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