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in linux add support for second SD card am3352

trichet christophe
Expert 2025 points
Other Parts Discussed in Thread: AM3352

Hello

On my AM3352 custom board a /media/mmcblk0p2 is mounted to access first SD card mmc0.

I want to add support for a second SD card mmc1 .

Do i only have to add a call to mmc1_init() function in board-am335xevm.c to have access to the second sd card under linux (will there be a /media/mmcblk0p2 mounted automatically ?)

Best regards

  • 0
    TI__Genius 15510 points

    Yes, just make sure you call mmc1_init before you call mmc0_init.

    I think it will automatically be mounted, but I'm not sure.

    Steve K.

  • 0 in reply to Steve Kipisz
    TI__Guru** 116100 points

    Hi Christophe,

    Do i only have to add a call to mmc1_init() function in board-am335xevm.c to have access to the second sd card under linux (will there be a /media/mmcblk0p2 mounted automatically ?)

    Typically We follow,

    If you had 2 MMC support,

    /media/mmcblk0p2 --> It is the Second partition of MMC0 for linux filesystem

    /media/mmcblk0p1 --> It is the First partition of MMC0 for bootable binaries

    /media/mmcblk1p2 --> It is the Second partition of MMC1 for linux filesystem

    /media/mmcblk1p1 --> It is the First partition of MMC1 for bootable binaries

    If you want to mount filesystem from MMC1 then change the bootargs in u-boot ( rootfs=/dev/mmcblk1p2).