```
-rw-r--r-- 1 root root  51913 May 13  2019 rk3399-firefly.dtb
-rw-r--r-- 1 root root 615089 May 13  2019 u-boot.bin
-rw-r--r-- 1 root root 805320 May 13  2019 uboot.elf
-rw-r--r-- 1 root root 615932 May 13  2019 u-boot.img
-rw-r--r-- 1 root root 563176 May 13  2019 u-boot-nodtb.bin
-rw-r--r-- 1 root root  92458 May 13  2019 u-boot-spl.bin
-rw-r--r-- 1 root root  96256 May 13  2019 u-boot-spl.rksd
```