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AM3359: SD card boot issue

Part Number: AM3359

Hi all

I am new to this sitara am335x family processor. I selected 0100XXXXXXXX110111b boot mode(Trying to boot from MMC0). I can see some wave forms on clock and cmd pin of sd card. we are operating SD card on 3.3V. can someone tell me what else I can check for booting? I verified  read and write operation of SD CARD it is working fine. we have JTAG debugger and all peripherals are working fine even LCD. but unable to boot.