This is a series of documents that intend to help you grasp he concept of the System Controller Unit (SCU) / System Controller Firmware (SCFW).
Other Useful resources:
- https://community.nxp.com/docs/DOC-344684 (2019)
- i.MX 8 System Controller Unit and System Controller Firmware Overview (2018)
- Clusters & Infotainment: Introduction to the i.MX 8 System Controller Unit (2017 Slightly outdated, for correct boot sequence go to Chapter 5 System Boot of the Reference Manual)
- System Controller Firmware command line utility for QNX and Linux
You can get the latest System Controller Firmware Porting kit from the i.MX Software and development webpage:
The porting kit contains documentation and allows you to build the SCFW from source and do modifications to the board dependent parts:
The API documents explain the System Controller Firmware API syntax and it has a section for introduction and general overview of the system.
The port document contains information on what each board component function does and the overall process of porting the SCFW.
