booteload_sd=ext4load mmc ${rootmmc} ${bootkaddr} boot/loader/uEnv.txt; env import -t ${bootkaddr} ${filesize}
bootkload_sd=ext4load mmc ${rootmmc} ${bootkaddr} boot/${kernel_image}
bootiload_sd=ext4load mmc ${rootmmc} ${bootiaddr} boot/${ramdisk_image}; setenv ramdisk_size ${filesize}
booteload_sd=ext4load mmc ${rootmmc} ${bootkaddr} boot/loader/uEnv.txt; env import -t ${bootkaddr} ${filesize}
bootkload_sd=ext4load mmc ${rootmmc} ${bootkaddr} boot/${kernel_image}
bootiload_sd=ext4load mmc ${rootmmc} ${bootiaddr} boot/${ramdisk_image}; setenv ramdisk_size ${filesize}