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Linux/AM5728: U-boot fails

Part Number: AM5728


Tool/software: Linux

Hi,

I have a custom am5728 board and I am trying to boot linux on it however it seems like uboot seems to be failing. Here is the console for when I attempt to boot.

U-Boot SPL 2017.01-g9fd60700db (Jun 28 2017 - 19:55:57)
DRA752-GP ES2.0
Trying to boot from MMC1
reading uboot.env

** Unable to read "uboot.env" from mmc0:1 **
Using default environment

reading u-boot.img
reading u-boot.img
reading u-boot.img
No matching DT out of these options:
am57xx-beagle-x15
am57xx-beagle-x15-revb1
am57xx-evm-reva3
am572x-idk
am571x-idk
reading uboot.env

** Unable to read "uboot.env" from mmc0:1 **
Using default environment

Failed to mount ext2 filesystem...
spl_load_image_ext: ext4fs mount err - 0

I've looked at the uboot guide on the ti website but can't seem to find a solution to this issue. If you could please assist me with this that would be much appreciated! Thanks.