In case you did not notice, yet: The new userguide how to use RISC-V softcores is out and available for download on the SpiderSoM and MX10 product pages.

The reference designs demonstrate the implementation of an open-source RISC-V core running FreeRTOS and interfacing with different peripherals. This guide shows how to install the neccessacy requirements and how to run and modify the RISC-V examples on the MX10 and SpiderBoard SoMs. The examples are also suitable as starting point for developement.