Forum Post: RE: SD card Interfacing with AM3352 processor.

MicroSD card has no card detect.

In your linux board file, use

static struct omap2_hsmmc_info am335x_mmc[] __initdata = {

{

              gpio_cd = -EINVAL;

             caps  = MMC_CAP_4_BIT_DATA | MMC_CAP_NEEDS_POLL;

....

}