Libre Computer AML-S905X-CC-V2 SBC directly installs Linux images from the Internet

Libre Computer AML-S905X-CC-V2 “Sweet Potato” is a “new” Amlogic S905X SBC following the Raspberry Pi 3B form factor and that will eventually directly boot Linux images downloaded from the Internet using the Libre Computer OS Tool (LOST).

I wrote “new” in quotes because the single board computer is an update to the Potato board (AML-S905X-CC) introduced in 2017 with just a few hardware changes. But that’s because Libre Computer focuses on the software side and all/most of their boards can now run mainline Linux and have support for features such as LOST whose support is set to be implemented by November.

Libre Computer AML-S905X-CC-V2 SBC

Libre Computer AML-S905X-CC-V2 SBC specifications with changes in bold or strikethrough:

  • SoC – Amlogic S905X quad-core Arm Cortex-A53 processor @ 1.5 GHz with penta-core Arm Mali-450MP GPU, and Amlogic Video Engine 10 VPU
  • System Memory – 2GB DDR4 (OEM can request 1GB)
  • Storage
    • 1x microSD card slot with UHS SDR104 support
    • eMMC 5.x slim module connector
    • 16MB SPI flash with boot select switch
  • Video Output – HDMI 2.0 port, 3.5mm TRRS “AV” jack with CVBS (480i / 576i)
  • Audio Output – HDMI, AV jack (stereo audio), SPDIF output header, and I2S header
  • Connectivity – 10/100M Ethernet with optional PoE support
  • USB – 4x USB 2.0 host ports, USB 2.0 header
  • Expansion
    • ADC + I2S Header
    • 40-pin Raspberry Pi header with I2C, SPI, PWM, 5V, 3.3V, and GPIO
  • Debugging – UART via header for access to the serial console
  • Misc – IR Receiver, onboard jumper for HDMI CEC or GPIO 11 selection, status LEDs,\
  • Power Supply
    • 5V/3A via USB Type-C port
    • PoE header
  • Dimensions – Raspberry Pi 3 form factor

Arm SBC eMMC flash module microSD card

The new revision of the board loses CVBS video composite and analog audio output but gains PoE support, a USB header, and a 16MB SPI flash. The memory has been changed from DDR3 to DDR4 with negligible performance differences, and a USB-C port replaced the legacy micro USB port for power.

The actual board design was completed in 2020, but as noted in the introduction, Libre Computer differentiates itself from other SBC vendors and does not release new hardware every month or so like like Orange Pi and others, but mostly focuses its efforts on software. In practice that means mainline Linux support, standardized boot with UEFI support meaning ARM64 EBBR/SystemReady image should boot on the board, and well as support for Libre Computer OS Tool (LOST) to easily download and install Linux images from the Internet to the board’s storage (MicroSD, eMMC, USB, NVMe) in a way similar to Khadas OOWOW system. You’ll find a 3-year old demo of LOST showing how to install CoreElec on the AML-S905X-CC board.

Libre Computer AML-S905X-CC-V2 SBC can be purchased for $35 on Amazon, Aliexpress, or LoverPi. Further details may also be found in the announcement on Libre Computer Hin where more documentation should eventually become available.

Thanks to Geoffrey for the tip

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