U-Boot Platform Architecture Design

• U-Boot Platform Requirements
• U-Boot Boot Loader
  • NOR Flash Memory Layout
  • Platform-Dependent Hardware Initialization
  • Platform-Independent U-Boot Features
• U-Boot Platform Linux Kernel and Device Tree Source
  • Device Tree Source
  • Kconfig and Makefile
  • Platform Support C Files
• U-Boot Platform NOS Interface Details
  • U-Boot platform Adding Kernel Command Arguments
  • U-Boot platform NOS Interface
  • U-Boot Platform Hardware Diagnostics Interface [Optional]

Note

The supported U-Boot Platform CPU architectures are:

• PowerPC 32/64-bit
• ARM 32/64-bit

Collectively, these CPU architectures are called “U-Boot Platforms” throughout this specification.

Everything in this section applies to all supported CPU architectures unless otherwise specified.