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Porting a Board Support Package

• Planning the Port
  • Starting Point
  • Differences
  • Reference Platform
• Boot Loaders
  • Board Manufacturer
  • Open Source
  • VxWorks Bootrom
• Initial Kernel Configuration
• Root File System
  • initrd
  • romfs
  • cramfs

Planning the Port

Starting Point

• Checking for existing support
  • Manufacturer of the board
  • Searching the internet

• Finding a supported platform that is similar

Differences

• Areas to look out for
  • Interrupt line assignments
  • Peripheral controller device differences
  • Memory map changes
  • Console device

Reference Platform

• Value of a supported reference platform

Boot Loaders

Board Manufacturer

Open Source

VxWorks Bootrom

Initial Kernel Configuration

Root File System

initrd

romfs

cramfs

-- JohnGordon - 14 Jul 2003