Hi,
in message <sea6b726.000 at mail.frequentis.com> you wrote:
>
> The last 2 weeks I worked full time on PCMCIA. We have a custom board with a
> MPC860T 10/100MBit Ethernet one PCMCIA slot 8MB flash and 32MB RAM.
Ummm... may I ask why you re-invented the wheel?
> I linked the pcmcia stuff directly to the kernel (driver/pcmcia), because I
> think I understand it right Wolfgang, your PCMCIA onyl works if PPCBoot setup
> the PCMCIA port. But we don't use PPCBoot (shame about that .... ) and it
> seems to be to complicate
If you use the direct IDE support as implemented in our kernel tree,
Linux reads the memory map of the PCMCIA port from the pcmc_pbrX /
pcmc_porX registers. That's all. Initializing these registers in
Linux is trivial. The reason we avoid it is because this may be
board-dependend.
> d/more work to add the whole stuff into our boot up sequence. I know that we
> loose the possibilty to mount root from a flash card, but we could live with
> that. Maybe Wolfgang has another hint for me ... :-)
We include both the direct IDE interface and the full PCMCIA card
services package with our ELDK. It has been tested and is working
fine on a couple of differenrt boards. We even support both PCMCIA
slots on MPC860 systems.
> However, I start of course where everyone startet:
I'm sorry, but this is ancient stuff. Why didn't you use more recent
code for your work?
> We portet also the mvista kernel 2.4.2 to the denx kernel 2.4.4
What exactly do you mean with this statement?
> >From now on it works. I used for the first steps the file system from the
> >eldk and copy then the necessary files (cardctl, cardmgr, scripts) to our
> >filesystem.
All of this (and more) is included and ready for use in the ELDK.
It's a pity you wasted so much work without asking earlier :-(
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
Perfection is reached, not when there is no longer anything to add,
but when there is no longer anything to take away.
- Antoine de Saint-Exupery
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
