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IMX6ULL SD card not booting in our customised board

Question asked by ramesh t on Aug 30, 2017
Latest reply on Sep 3, 2017 by Yuri Muhin



We are in hardware board bringup stage in customised IMX6ULL board. We used IMX6ULL NXP EVK uboot Image just for our checking purpose of board is booting or not form SD boot. But board is not booting so I have checked boot config logic level boot mode and switch respectively all are fine in hardware. so following are the Queries I have.


1. NXP EVK used processor serial number over the IC is " MCIMX6Y2DVM05AA  CTAB1643 0N70S CHINA FQABCTH" , Our board has "MCIMX6Y2DVM05AA  CTAK1718 0N70S CHINA GRAKCTP". Differences are highlighted in blue colour. If this difference has any errata has causing SD boot issue or in software we need to change any register setting etc..? Please provide us the information about blue coloured series number.


2. what is the maximum density of uSD card can be used in IMX6ULL and I hope all uSD card manufacturers cards will support?

3.If except JTAG is there any other ways to find out the SD card boot issue?

4. Is it any possibilities in software end that cause the SD boot issue when hardware end everything was fine?


Thanks & Regards,