U-Boot# mmc dev 0
switch to partitions #0, OK
mmc0 is current device
U-Boot# mmc part

Partition Map for MMC device 0  --   Partition Type: DOS

Part    Start Sector    Num Sectors     UUID            Type
  1     8192            131072          5050ce2d-01     0c Boot
  2     139264          2097152         5050ce2d-02     83
  3     2236416         2097152         5050ce2d-03     83
  4     4333568         3280896         5050ce2d-04     83