libertas_sdio doesn't work after reloading

Matt Reimer mreimer at
Tue Feb 3 14:09:48 EST 2009

On Tue, Feb 3, 2009 at 7:42 AM, Dan Williams <dcbw at> wrote:
> On Tue, 2009-02-03 at 11:20 +0000, Jonathan Cameron wrote:
>> Matt Reimer wrote:
>> > On Mon, Feb 2, 2009 at 1:58 PM, Andrey Yurovsky <andrey at> wrote:
>> >> Hi Matt.  Is this on an embedded system or on a desktop PC with some
>> >> host controller?  If so, which one?  I'm curious because module reload
>> >> seems to work fine with my Ricoh host controller.
>> >
>> > This is on an embedded system, using the SD controller on a pxa320.
>> >
>> > Matt
>> >
>> I ran into exactly the same issue with a pxa271 board, but never figured
>> out what was going on.  Very interested to hear if you do!
> The only method I have found to reset the libertas chip is to pull the
> power from the card or unplug it.  There hasn't been any other method
> that we can figure out to hard-reset the card, either with SDIO commands
> or with CMD_802_11_RESET.  I'd be quite interested if anyone found a
> mechanism for doing a full reset while the card's plugged in.

Do you think the problem could be that after reset the libertas chip
is talking to the controller at the wrong bus speed and bus width?


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