meta-licheerv-nano

A Yocto/OpenEmbedded layer for the Sipeed LicheeRV Nano, based on the Sophgo SG2002 SoC.

This layer defines the licheerv-nano machine, the SG2002 kernel and boot chain, and a bootable SD-card image. It is a Yocto/OpenEmbedded conversion of varyhin/licheervnano, whose mainline source pins, boot flow, board patches, and hardware enablement form the basis of this project.

Nano-W and Nano-WE images include the AIC8800 SDIO Wi-Fi/BT driver modules and vendor firmware. The same universal image also boots Nano-B and Nano-E; the AIC8800 modules simply find no device on those variants.

Supported Yocto releases

The layer currently declares compatibility with:

• Wrynose

Quick start

Use KAS to fetch the compatible dependency set and build the reference image:

kas build kas/licheerv-nano.yml

To use an existing Poky build environment, add this layer and set the machine:

MACHINE = "licheerv-nano"

Build the layer's reference image:

bitbake licheerv-nano-image

See docs/bringup.md for source pins and peripheral integration, and docs/boot-architecture.md for the hardware and firmware boot chain.

License

This layer is distributed under the MIT License. See LICENSE.