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4.3.28. bootloader Usage instructions

• 4.3.28.1. Bootloader User Guide
  • Introduction to Bootloader
    • Bootloader Configuration and Compilation
    • Key Bootloader Files
      • Configuration Files
      • Device Tree Files
      • Platform-Specific Files
  • Bootloader Boot Process
    • Analysis of Bootloader Boot Flow
    • Key Function Analysis in Bootloader Boot Flow
      • Entry Function _start
    • _main
      • board_init_f
      • board_init_r
  • Introduction to Secure Boot Process
    • BootROM Stage
    • BL2 Stage
    • U-Boot Stage
    • Linux Kernel Stage
    • Summary of Security Configuration
  • U-Boot Dynamic Configuration of Kernel ION Reserved Memory Size Usage Guide
  • U-Boot Usage Guide for dtb overlay
    • General Rules
    • Retrieve Overlay File from Fixed Location
    • Complete Configuration of Overlay File Location
  • U-Boot Configuration of Watchdog
  • U-Boot Configuration of PHY
  • U-Boot Configuration of UART
  • U-Boot Configuration of IO-Domain
  • Description of Commonly Used Commands in U-Boot
    • Environment Management Commands
      • setenv
      • printenv
      • saveenv
    • md Command
      • md Command Format
      • md Parameter Explanation
      • md Examples
      • Use Cases for md Command
      • Notes on md Command
    • mw Command
      • mw Command Format
      • mw Parameter Explanation
      • mw Examples
      • Use Cases for mw Command
      • Notes on mw Command
    • nm Command
      • nm Command Format
      • nm Parameter Explanation
      • nm Command Example
    • mm Command
      • mm Command Format
      • mm Command Parameter Explanation
      • mm Command Example
      • Differences Among Memory Modification Commands
    • I2C Command
    • gpio Command
    • dm Command
      • dm Command Format
      • dm Parameter Explanation
      • dm Command Examples
    • mii Command
      • mii Command Format
      • mii Parameter Explanation
      • mii Command Examples
    • mdio Commands
      • mdio Command Format
      • mdio Parameter Explanation
      • mdio Command Examples
  • Bootloader Glossary
• 4.3.28.2. BL2 Configuration File Description
  • BL2 Feature Configuration
    • BL2 Watchdog Configuration
    • BL2 GPIO Configuration
      • Single Pin Configuration
      • Continuous Pin Configuration
  • DDR Configuration
    • Remapping ADC Levels and DDR Profiles
    • Enabling DDR Digital Eye Diagram
  • eFUSE Configuration