System Controller Firmware 101

[#1]

This is a series of documents that intend to help you grasp he concept of the System Controller Unit (SCU) / System Controller Firmware (SCFW). 

• Getting started

• Power management service 

• Resource management service

• Pad configuration service

• Timer service

• Miscellaneous service

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• Clusters & Infotainment: Introduction to the i.MX 8 System Controller Unit (2017 Slightly outdated, for correct boot sequence go to Chapter 5 System Boot of the Reference Manual)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.