Feature Chip comments TODO
System on a chip Allwinner A64 Quad Core SOC9 * The bootloader should be fully free software7 including ARM Trusted Firmware8
* The code should be upstream already7
* Look at the code
GPU Mali 400 MP2 GPU1 * A "pipe" driver is in Linux since 5.2
* Has (very early) support in Mesa
* Regularly check kernel and MESA status
Modem Quectel EG-25G1 with2 worldwide bands4 * The EG-25G is an international version of the EC25
* It probably runs GNU/Linux too but we need to confirm that
* How supported is the AT support?
* How supported is the QMI the protocol?
* What's the similarity with the EC-25?
WiFi RTL8723CS3 * Requires a nonfree loadable firmware3
Bluetooth: 4.0, A2DP1 * It uses a nonfree firmware3.
* Check if it really requires that firmware or if it has some rom code that could be used ?
USB – C1 (Power, Data and Video Out) * USB 2.09
* Serial console is only available in the headphone connector (activated by the 6th contact on the dipswitch10)
5.95″ LCD 1440×720, 18:9 aspect ratio (hardened glass)
* Check if it meets Android 9 requirements
Main Camera Single OV6540, 5MP, 1/4″, LED Flash1 * Mainline driver5
* No firmware required5
* Check if it requires a loadable firmware
Selfie Camera Single GC20351, 2MP, f/2.8, 1/5″ TODO:
* Check if it requires a loadable firmware
Bootable Micro SD1
16GB eMMC1
*Boot order:MicroSD->eMMC6
Sensors accelerator, gyro, proximity, compass, barometer, ambient light1 TODO:
* What chips are used


1 Some of the specifications are available on the device page

2 See this mail for the reference.

3 From #replicant channel on Freenode:

< MoeIcenowy> The Wi-Fi changed to RTL8723CS (this chip also does BT), which needs non-free firmware to be feed

4 From #replicant channel on Freenode:

< MoeIcenowy> The GNSS should be also done by EG25-G

5 From #replicant channel on Freenode:

< MoeIcenowy> The OV5640 camera doesn't need firmware and its driver is mainlined

6 From #replicant channel on Freenode:

The boot order is strictly MicroSD->eMMC, which is set in the A64's boot ROM

7 From #replicant channel on Freenode:

The bootloader (U-Boot SPL + ATF + U-Boot) is free software, all mainlined now (and the downstream dirty U-Boot cannot boot upstream Linux kernel)

8 From #replicant channel on Freenode:


9 Allwinner A64 Datasheet:

10 PostmarketOS Pinephone page: