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AM335x EVM SD card boot partitioning

JayWhy
Intellectual 340 points
Other Parts Discussed in Thread: AM3359

Hi,

I have a custom board that boots from the MMC0 interface on the AM3359. I am able to put my own application on the card and run it successfully.

Using the Micro SD card that came with the AM335x EVM, I am able to boot no problem. Now I am trying to create my own SD card to boot from.

I can see that the EVM's SD card is partitioned into 3 partitions, but how was this done? How can I replicate it on my new SD card?

Thank you in advance,

JY

  • 0
    Intellectual 340 points

    I used gparted to manage my partitions.

    I set the partition table to be msdos.

    I created an 80 MB FAT32 partition and set the "boot" flag. 

    My bootloader now runs, but it takes much, much longer to copy the application from the SD card to DDR. 

    The new SD card is a class 6 16 GB card. My boot partition is only 80 MB though.

    The SD card from the EVM is class 4 4GB....so this card should take longer.