Re: kernel BUG at drivers/mmc/core/sdio_io.c:28!
From: Elvis Dowson
Date: Wed Oct 27 2010 - 10:17:31 EST
Hi Ohad,
On Oct 27, 2010, at 6:05 PM, Ohad Ben-Cohen wrote:
> You actually seem to have two problems here:
> 1. Your SDIO driver's probe function isn't called
> 2. Your WLAN driver is using the SDIO API without having a valid SDIO function
>
> Ignoring the 2nd issue for now, you most probably have an integration
> problem. Is the chip powered up correctly ?
Yes, I checked the VBAT, and VIO and WLAN Power Enable signals.
> is it mmc rescanned after it is powered up ?
I'm not sure about this. How can I check this? Could you point me to a code fragment?
> are you using the correct mmc controller ?
Yes, MMC2, as per the schematics.
> have you configured your mmc lines correctly (board muxing) ? etc..
Yes, I've setup the mux settings correctly.
> Maybe you want to checkout the mainline wl1271 driver using Luca's
> Beagle board patches :)
Ok, will try it once again.
Best regards,
Elvis
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