Helpful U-Boot Commands

Revision History

SDCard & MMC commands

Confirm SDcard Contents

=> mmc list
sd@11c00000: 0 (eMMC)
sd@11c10000: 1

Select Device

=> mmc dev 1
switch to partitions #0, OK
mmc1 is current device

List Partitions

=> mmc part

Partition Map for MMC device 1  --   Partition Type: DOS

Part    Start Sector    Num Sectors     UUID            Type
  1     2048            67584           a1d1165e-01     0b
  2     69632           62451712        a1d1165e-02     83

List Files on Partition (fatls for fat, ext4ls for ext4 partitions)

=> fatls mmc 1:1
 16955904   Image
    37530   r9a07g044l2-smarc.dtb

2 file(s), 0 dir(s)

Restore Default Configuration

env default -a

Variables that need to be Updated to Boot MistySOM

bootargs

bootcmd