On Tue, 2017-07-04 at 14:53 +0200, Stefan Roese wrote: > Hi, > > we are currently investigating, if its possible to connect a SDIO > device (WLAN module) to the SD-card interface "SD3" of the BayTrail > SoC instead of the SDIO interface "SD2". The BayTrail manual states, > that the SDIO interface is capable of connecting SDIO devices. Is > this also possible for the SD-card interface "SD3", even if its not > explicitly mentioned in the manual? If not, why is this not possible? > > Any insight on this would be really helpful. Hmm... I have no documentation for SD/SDIO/eMMC for BayTrail except the public one. Internally I found some charts that shows similarities between two. So, taking that into consideration I would suggest to try it out on real hardware (MinnowBoard MAX, for example), only impediment I can see is the absence of support in the drivers in Linux OS. If you need it only in U-Boot, you perhaps may fix it easily. P.S. Adrian on vacation. -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html