U-Boot Documentation

• Manual
• Frequently Asked Questions - with answers!
• Design Principles
• Design requirements and common execution flow
• (Known) GCC Bugs and Issues
• README file

Presentations:

• Introductory Presentation (quite old)
• U-Boot - Multi image booting scenarios by Jagan Teki and Suneel Garapati (2013-11-11)

External links:

• Building and Debuging U-Boot in Eclipse Helios On Window XP