* omap_hsmmc: Problem with SanDisk Extreme Pro MicroSDHC 1
@ 2014-04-07 13:47 Stefan Roese
2014-04-08 14:09 ` Stefan Roese
0 siblings, 1 reply; 2+ messages in thread
From: Stefan Roese @ 2014-04-07 13:47 UTC (permalink / raw)
To: linux-mmc; +Cc: Balaji T K
Hi!
I'm currently testing on an OMAP3530 board (tao3530 SOM with custom
baseboard) with v3.14. I applied all the OMAP/pbias patch from Balaji
and MMC/SDcard detection seemed to work reliably.
But now I noticed that the SanDisk Extreme Pro MicroSDHC 1 (8 GB) is not
detected all the time. It seems that the card detected fails with
timeout on (approx?) each 2nd reboot (via reset button). A quick check
shows that the timeout happens in mmc_send_app_op_cond():
[ 4.901275] mmc0: error -110 whilst initialising SD card
[ 4.939849] mmc1: new SDIO card at address 0001
Is this a known issue? Any ideas on how to fix this?
Thanks,
Stefan
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: omap_hsmmc: Problem with SanDisk Extreme Pro MicroSDHC 1
2014-04-07 13:47 omap_hsmmc: Problem with SanDisk Extreme Pro MicroSDHC 1 Stefan Roese
@ 2014-04-08 14:09 ` Stefan Roese
0 siblings, 0 replies; 2+ messages in thread
From: Stefan Roese @ 2014-04-08 14:09 UTC (permalink / raw)
To: linux-mmc; +Cc: Balaji T K
On 07.04.2014 15:47, Stefan Roese wrote:
> I'm currently testing on an OMAP3530 board (tao3530 SOM with custom
> baseboard) with v3.14. I applied all the OMAP/pbias patch from Balaji
> and MMC/SDcard detection seemed to work reliably.
>
> But now I noticed that the SanDisk Extreme Pro MicroSDHC 1 (8 GB) is not
> detected all the time. It seems that the card detected fails with
> timeout on (approx?) each 2nd reboot (via reset button). A quick check
> shows that the timeout happens in mmc_send_app_op_cond():
>
> [ 4.901275] mmc0: error -110 whilst initialising SD card
> [ 4.939849] mmc1: new SDIO card at address 0001
>
> Is this a known issue? Any ideas on how to fix this?
Just to let you know. I missed to add the "cd-gpios" property to the mmc
DT node. With this addition the detection seems to work reliably.
Sorry for the noise,
Stefan
^ permalink raw reply [flat|nested] 2+ messages in thread
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