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LINUXSDK-OMAPL138: MMC support for card volts

Risto Hedman
Expert 1770 points
Part Number: LINUXSDK-OMAPL138

Hi,

While kernel (ti-processor-sdk-linux-omapl138-lcdk-06.00.00.07) is booting I get following message from a WiFi- module connected mmc:

mmc0: error -22 whilst initialising MMC card

davinci_mmc da830-mmc.1: no support for card's volts

Other mmc with SD- card boots fine.

How to skip this "card's volts" detection? I'm using "board-omapl138-hawk.c" as it seems to be closest to our custom HW.

Best Regards,

ristoH

  • 0
    TI__Guru**** 161600 points

    Hi,

    You probably need to modify the mmc0 entry with the voltages needed for your card. You can reference the other mmc entries (the one with sd cards attached).
    Also note that you may need to modify the cd & wp pins if they're present in your dts entries.

    Best Regards,
    Yordan