final solutions
tftp 0xa0000000 bl2_qspi.pbl
sf erase 0x0 +$filesize && sf write 0xa0000000 0x0 $filesize
tftp 0xa0000000 fip_uboot.bin
sf erase 0x100000 +$filesize && sf write 0xa0000000 0x100000 $filesize
tftp 0xa0000000 fsl_fman_ucode.bin
sf erase 900000 +$filesize && sf write 0xa0000000 900000 $filesize
tftp 0xa0000000 fitImage_new.bin
sf erase 0x1000000 +$filesize
sf write 0xa0000000 0x1000000 $filesize
cpld reset altbank