Re: [iPAQ] Ipaq Pcmcia 2fast4you ?

On Tue, Apr 17, 2001 at 04:06:28PM -0400, John Dorsey wrote:
>
> If it is genuinely necessary to slow down the core clock on the iPAQ
> just to make PCMCIA devices work, then that indicates a hardware bug.
> What's more likely is that the kernel is failing to set up the hardware
> properly.
>

Well, I and one other person seem to have this happen to them. What I
don't know is whether this might be a kernel problem (I'm using the
kernel from the 0.4 Familiar distribution), or whether it's hardware
problem with the ipaq H3650 I happen to have, in which case I should
try to get it exchanged for a new one.

For all of the people who reported that they were able to successfully
use a WaveLan card --- what hardware platform and what version of the
kernel were they using?

> I haven't looked at the clock scaling driver, but it's worth stating
> that any change in the core frequency _must_ be accompanied by a change
> to the various fields in the MECR (card interface timing register). The
> SA-1100 PCMCIA socket driver properly configures this register in an
> implementation-independent manner, but as of the last time I touched it,
> it contained no provision for scaling.

I wonder if the iPAQ pcmcia hardware requires more time, and the
reason why changing the core frequency helps is that there isn't a
provision for scaling?

                                                - Ted
Received on Tue Apr 17 17:24:38 2001