package/boot/uboot-sunxi/uEnv-a64.txt

   1 setenv mmc_rootpart 2
   2 part uuid mmc ${mmc_bootdev}:${mmc_rootpart} uuid
   3 setenv loadkernel fatload mmc \$mmc_bootdev \$kernel_addr_r uImage
   4 setenv loaddtb fatload mmc \$mmc_bootdev \$fdt_addr_r dtb
   5 setenv bootargs console=ttyS0,115200 earlyprintk root=PARTUUID=${uuid} rootwait earlycon=uart,mmio32,0x01c28000
   6 setenv uenvcmd run loadkernel \&\& run loaddtb \&\& booti \$kernel_addr_r - \$fdt_addr_r
   7 run uenvcmd