u-boot-sunxi-mainline-polaroid_mid2809pxe04-20160628T034210-4a9a329/
u-boot-sunxi-mainline-polaroid_mid2809pxe04-20160628T034210-4a9a329/sunxi-spl.bin
u-boot-sunxi-mainline-polaroid_mid2809pxe04-20160628T034210-4a9a329/u-boot-sunxi-with-spl.bin
u-boot-sunxi-mainline-polaroid_mid2809pxe04-20160628T034210-4a9a329/u-boot.bin