OpenTina
Open-source community

System software for Allwinner A733

OpenTina provides low-level system software and multi-OS distribution support for the Allwinner A733 chip platform: upstream-quality kernel, bootloaders, trusted firmware, and ready-to-use distributions.

Allwinner A733 Linux 6.18 LTS RISC-V Multi-OS
Get started GitHub organization

Where everything lives

All development happens on GitHub under the opentina-org organization. Here is a map of the core repositories.

Low-level & core BSP

build

Top-level orchestration tools, build scripts and configs — the one-click build entrypoint.

./build.sh

trusted-firmware-a

ARM Trusted Firmware (ATF) port for Allwinner A733 — PSCI and Secure World.

ATFPSCI

optee_os

Trusted side of the OP-TEE Trusted Execution Environment for Allwinner A733.

TEE

u-boot

U-Boot bootloader tailored for Allwinner A733 — SPL, Fastboot, bootflow.

SPLFastboot

linux

Linux kernel tree with embedded device trees for Allwinner A733 — Linux 6.18 LTS branch.

Linux 6.18 LTS

awbin

Allwinner A733 related binaries and firmware blobs.

Firmware

xfel

Tiny FEL tools for Allwinner SoCs — communicate over USB in FEL mode.

FELUSB

Build systems & OS distributions

buildroot

Buildroot tree pre-configured for Allwinner A733 — minimal, fast-booting rootfs.

Minimal

openwrt

OpenWrt target definitions and network stack for Allwinner A733 — router and gateway solutions.

Router

meta-opentina

Yocto Project BSP layer for OpenTina hardware — industrial and enterprise Linux.

Yocto

debian

Debian rootfs creation scripts and image builder — stable desktop and server environment.

Debian

ubuntu

Ubuntu rootfs generation scripts and board enablement — modern desktop and AI edge evaluation.

Ubuntu

Quick start

Four commands to go from a fresh machine to a bootable image.

Clone the build repository

The top-level orchestration repository drives everything else.

git clone https://github.com/opentina-org/build.git
cd build

Initialize and fetch sources

Downloads all required source trees via the default manifest.

./build.sh init

List supported targets

Shows every supported board together with the available OS distributions.

./build.sh targets

Build an image

Compiles the complete image chain for the board you picked.

./build.sh <BOARD_NAME> build

For detailed instructions, build options and advanced configuration, see build/README.md.

Community & support

OpenTina is developed in the open. Everything — code, issues, roadmap — happens on GitHub.

Report an issue

Found a bug or have a question? Open an issue in the opentina repository.

Documentation

In-depth guides and technical documentation live in the docs repository.

All repositories

Browse the complete list of projects maintained by the organization.