From NixOS Wiki
Manufacturer PINE64 (Pine Microsystems Inc.)
Architecture AArch64
Bootloader Upstream U-Boot
Boot options microSD, eMMC, SPI NOR Flash

The ROCKPro64 is a powerful single board computer built around the Rockchip RK3399 SoC.

There are two models of the board, with 2 or 4 GB of RAM. It can boot from an microSD card or an eMMC. It also has a 128 Mbit SPI flash that can be used to store the bootloader.


This board has upstream U-Boot and kernel support, although the mainline kernel may still be missing some features. NixOS can be installed using manual partitioning and nixos-install or by modifying the aarch64 installation image as described in the next section.

U-Boot for this board is packaged in nixpkgs, and Hydra builds can be found here:

It can also be cross compiled with

nix-build '<nixpkgs>' --argstr system aarch64-linux -A ubootRockPro64 --out-link ubootRockPro64

Board-specific installation notes

You can use nixos-aarch64-images to get an rockpro64 compatible disk image or running the commands manually as described below:

U-Boot needs to be copied to specific sectors on the microSD card, eMMC or image with dd. Download/build U-Boot for the board, and write idbloader.img and u-boot.itb to the correct locations with (replace /dev/mmcblkX with the correct path to the card or image):

dd if=idbloader.img of=/dev/mmcblkX conv=fsync,notrunc bs=512 seek=64
dd if=u-boot.itb of=/dev/mmcblkX conv=fsync,notrunc bs=512 seek=16384
Note: Prior to NixOS 20.03, a downstream version of U-Boot 2017.09 was packaged, which placed U-Boot in a single idbloader.img file. If that version is used, simply disregard the second command above.

On many kernels, the ethernet driver cannot handle hardware check-summing of large packets, therefore this feature must be disabled for the ethernet to be stable. This can be done with the following NixOS configuration:

networking.localCommands = ''
  ${pkgs.ethtool}/bin/ethtool -K eth0 rx off tx off

Serial console

Note: Do not connect RxD (pin 10) until the U-Boot SPL is running (see [RK3399 boot sequence

The ROCKPro64 uses a GPIO pinout compatible with the Raspberry Pi 2 and newer. This means that the following pins can be used to connect a serial adapter:

Pi-2 Bus
Pin Function

See for list of all pins

The serial console runs at 1500000 baud in the bootloader.

To connect check your dmesg for an identifier of the serial console:

[78635.965459] usb 2-1: new full-speed USB device number 8 using xhci_hcd
[78636.119008] usb 2-1: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.63
[78636.119017] usb 2-1: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[78636.119022] usb 2-1: Product: USB2.0-Serial
[78636.127103] ch341 2-1:1.0: ch341-uart converter detected
[78636.142043] usb 2-1: ch341-uart converter now attached to ttyUSB0

In our example that coresponds to the ttyUSB0 which makes a new device available at /dev/ttyUSB0 to which you can connect using for (example) picocom:

# Connect to /dev/ttyUSB0 at baud 1500000
$ nix-shell -p picocom --run "picocom /dev/ttyUSB0 -b 1500000"

See for more information on setting up the serial console