u-boot is from latest git://git.denx.de/u-boot.git
On PC side I use sunxi-fel to load u-boot. Here the PC log:

[cube_a80]:~/embedded_a80/u-boot-denx.git> sudo sunxi-fel  -l
USB device 003:047   Allwinner A80     0460c92c:74404000:09406102:07227010
[cube_a80]:~/embedded_a80/u-boot-denx.git> sudo sunxi-fel uboot u-boot-sunxi-with-spl.bin
usb_bulk_send() ERROR -7: Operation timed out

And on target side I have such output:

U-Boot SPL 2017.07-rc1-01160-g8cb3ce6-dirty (Jun 12 2017 - 22:30:01)
DRAM:Setting PLL6 to 1344000000
2
Waiting for DRAM_CLK_CFG
found CL/CWL: CL = 11, CWL = 8
DX2GCR0 reset: 0x7c000285
Channel 0 OK!
done
DFIMISC before writing 0: 0x1
channel_init complete
found CL/CWL: CL = 11, CWL = 8
DX2GCR0 reset: 0x7c000285
Channel 1 OK!
done
DFIMISC before writing 0: 0x1
channel_init complete
CR: 5978596
 2048 MiB
board_init_f() - complete!

I can't understand there the u-boot is hung? Please, give me any tips! Thank you.