ar6000 and other SDIO/SDCard Wireless

Robert Emanuele rob at
Tue Aug 18 11:28:36 CEST 2009

Hi Vincent,

I would be happy to give your code a try.  We are not using DMA with a
real MMC driver.  I'd appreciate a look at it.  Have you released this
code back to the openmoko project?  Is this the final solution you
went with or did you end up finding a card with the 2.0 firmware?



On Mon, Aug 17, 2009 at 10:22 PM, Vincent Del
Medico<vincent.del.medico at> wrote:
> Hi rob,
> Openmoko's version of AR6k driver is for cards with 2.x firmware.
> You seem to have a 1.x version ( BMI Get Target Info: Exit (ver: 0x1302270f
> type: 0x1) ), which is not compatible with 2.x.
> I faced the same problem as you before, except I was playing with the OMAP
> processor ( TI ).
> I can give you the job I did, but it only works in some conditions :
> - your MMC/SD/SDIO driver must NOT use DMA transfers. The 32bit ARM core
> only supports transfers of data multiple of 4 bytes, but the AR6k driver
> sometimes sends data of 1, 2 or 3 bytes, resulting in DMA misaligned errors.
> I've not been able to solve this problem, it could be nice to investigate.
> - the driver works with a real MMC/SD/SDIO driver ( not SPI )...
> nevertheless, it maybe in SPI, but didn't tested.
> Regards,
> Vincent.
> 2009/8/18 Robert Emanuele <rob at>
>> Greetings,
>> I've been toying with your port of the ar6000 driver with my atmel
>> at91 processor.
>> It tries to initialize the card but fails....
>> ar6000_available
>> BMI Get Target Info: Exit (ver: 0x1302270f type: 0x1)
>> Block Size Set: 128 (target address:0x8000066C)
>> ar6000_init() Got WMI @ 0xc3a37d60.
>>  Timeout waiting for recv message
>>  Target Not Available!!
>> ar6000_avail: register_netdev failed
>> +ar6000_destroy
>> ar6000_cleanup(): WMI not ready 0xc3a322c0 0xc3a37d60
>> ar6000_cleanup(): Shut down WMI
>> eth0: link up (100/Full)
>>  Attempting to reset target on instance destroy....
>> -ar6000_destroy
>> In an earlier post I saw that this firmware version may be too old.
>> I've tried cards from 3 different vendors and the newest version I can
>> come up with is 0x17 (which is on the way).  Does anyone know the
>> differences between 1.3 and the version that works with this driver?
>> How do the CE guys get this to work?  Or, does anyone know of a vendor
>> that sells an ar6000 with the latest firmware in an SD Card package?
>> Thanks,
>> Rob

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