ath6kl latest git returns SDIo err -84 at init time

ath6kl latest git returns SDIo err -84 at init time

[Ruthy Zaphir]

Hi Kalle,

 I am using a SD45 finger evaluation board & cloned yesterday the latest
 ath6kl git and tested it on my linux laptop(with kernel 2.6.35 but I
also tried with a newer one with linux 3.0 ) that has
 an SDIO slot.

 I am getting the below errors after few first read/write and I am
starving
 to understand what is the cause of it.

 We are building a product with AR6103 integrated and I would like to
 overcome that issue.

 Thanks in advance for any support,

 Hope to get good news :-)
 Ruthy

>
> [39668.250460] mmc0: new SDIO card at address 0001
> [39668.250726] sdio new func 1 vendor 0x271 device 0x301 block
0x800/0x200
> [39668.250814] 4-bit async irq mode enabled
> [39668.357814] rd addr 0x450 buf 0xf5f082d0 len 4 ret 0
> [39668.367833] wr addr 0xff4 buf 0xf5cc0000 len 12 ret 0
> [39668.377722] rd addr 0x450 buf 0xf5f082d0 len 4 ret 0
> [39668.387733] wr addr 0xff4 buf 0xf5cc0000 len 12 ret 0
> [39668.397629] rd addr 0x450 buf 0xf5f082d0 len 4 ret -84
> [39668.407572] ath6kl_sdio: probe of mmc0:0001:1 failed with error -84

Re: ath6kl latest git returns SDIo err -84 at init time

[Kalle Valo]

Hi Ruthy,

Sorry for the late reply, I was sick.

On 02/20/2012 12:47 PM, Ruthy Zaphir wrote:

>  I am using a SD45 finger evaluation board & cloned yesterday the latest
>  ath6kl git and tested it on my linux laptop(with kernel 2.6.35 but I
> also tried with a newer one with linux 3.0 ) that has
>  an SDIO slot.
> 
>  I am getting the below errors after few first read/write and I am
> starving
>  to understand what is the cause of it.
> 
>  We are building a product with AR6103 integrated and I would like to
>  overcome that issue.
> 
>  Thanks in advance for any support,
> 
>  Hope to get good news :-)
>  Ruthy
> 
>>
>> [39668.250460] mmc0: new SDIO card at address 0001
>> [39668.250726] sdio new func 1 vendor 0x271 device 0x301 block
> 0x800/0x200
>> [39668.250814] 4-bit async irq mode enabled
>> [39668.357814] rd addr 0x450 buf 0xf5f082d0 len 4 ret 0
>> [39668.367833] wr addr 0xff4 buf 0xf5cc0000 len 12 ret 0
>> [39668.377722] rd addr 0x450 buf 0xf5f082d0 len 4 ret 0
>> [39668.387733] wr addr 0xff4 buf 0xf5cc0000 len 12 ret 0
>> [39668.397629] rd addr 0x450 buf 0xf5f082d0 len 4 ret -84
>> [39668.407572] ath6kl_sdio: probe of mmc0:0001:1 failed with error -84

-84 is -EILSEQ and the SDIO subsystm returns that error when we read
from address 0x450. I don't know why that happens, but my first thought
was that there's a problem with the SDIO bus. On what platform are you
testing this? Can you slow down the SDIO bus just to test if that helps?

I haven't tested SD45 myself, so this can be also SD45 specific problem.
Can you enable full logs (0xffffffff) so that we can see packet contents?

Kalle