So, I've managed to start our u-boot.
=> version
U-Boot 2017.07 (Aug 22 2017 - 12:51:50 +)
gcc (SUSE Linux) 7.1.1 20170802 [gcc-7-branch revision 250825]
GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.28.0.20170331-2
I will try to deploy filesystem and run EFI grub.
2017-08-29 19:46
Required u-boot.bin from rpm package:
https://build.opensuse.org/package/show/home:matwey:branches:Base:System:Staging/u-boot-rock64
img files are produced as described here:
https://github.com/rockchip-linux/build/blob/debian/mk-uboot.sh
dd if=idbloader.img of=sdb seek=64
dd if=uboot.img of=sdb
