>>>>>>>>>>>>>>>> AM62x root_fs eMMC flasing on AM62x-SK E2 with USB-DFU
>>>> 1. create the root_fs ext4 file "am62x-tisdk-base.ext4"
Note that $TISDK_PATH is where TI SDK installed

mkdir am62_fs_ext4
cd am62_fs_ext4
cp -p $TISDK_PATH/filesystem/tisdk-base-image-am62xx-evm.tar.xz .
dd if=/dev/null of=am62x-tisdk-base.ext4 bs=1M seek=300
mkfs.ext4 -F am62x-tisdk-base.ext4 
mkdir mnt_fs
sudo mount -t ext4 am62x-tisdk-base.ext4 mnt_fs
sudo tar xvf ../tisdk-base-image-am62xx-evm.tar.xz
cd ..
sudo umount mnt_fs

>>>> 2. flash the root_fs ext4 file "am62x-tisdk-base.ext4" 
sudo dfu-util -a rootfs -D am62x-tisdk-base.ext4