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MX7 How to flash Linux to NAND without SD card?

Question asked by Lars Heinrichs on Dec 21, 2017
Latest reply on Dec 28, 2017 by igorpadykov

Hello,

 

we have designed a custom hardware based on the i.mx7.

Both eMMC and NAND are available as mass storage.

 

eMMC is connected to the SD1 interface (and SPI2 Interface to get a total of 8 data lines).

NAND is connected to SD3+SAI1 and shall be used as the primary boot source.

JTAG is available.

 

How do I get my uboot/linux/device tree stored in NAND?
Most articles/posts I find recommend to use an SD card and uboot to copy the boot image to NAND. But theres no SD card here. I guess an emulator or is needed to transfer the file through JTAG? If this is correct: What kind of emulator may I use? Do I need anything besides the MFG Tools? Any other software? Any hardware?

 

Thanks,
Regards,
Lars

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