3. Foundational Components

• 3.1. U-Boot
  • 3.1.1. User’s Guide
    • 3.1.1.1. USB Device Firmware Upgrade (DFU)
      • 3.1.1.1.1. USB Peripheral boot mode (SPL-DFU support)
    • 3.1.1.2. SD, eMMC and USB
      • 3.1.1.2.1. Overview
      • 3.1.1.2.2. MMC
        • 3.1.1.2.2.1. Listing MMC devices
        • 3.1.1.2.2.2. MMC HW partitions
        • 3.1.1.2.2.3. Selecting MMC device and partitions
        • 3.1.1.2.2.4. View MMC partition contents
        • 3.1.1.2.2.5. MMC supported boot modes
        • 3.1.1.2.2.6. Flashing an MMC device using USB-DFU
        • 3.1.1.2.2.7. Flashing an SD card from a host PC
      • 3.1.1.2.3. USB
        • 3.1.1.2.3.1. Configuring USB in Host Mode
        • 3.1.1.2.3.2. Flash and boot SPL from USB storage
        • 3.1.1.2.3.3. Boot Linux from USB storage
        • 3.1.1.2.3.4. MMC support in u-boot
        • 3.1.1.2.3.5. Steps for working around SD card issues in u-boot
    • 3.1.1.3. UART
      • 3.1.1.3.1. Booting U-Boot from the console UART
  • 3.1.2. Troubleshooting
    • 3.1.2.1. Debugging U-Boot and SPL
      • 3.1.2.1.1. Debug Example
        • 3.1.2.1.1.1. Setup
        • 3.1.2.1.1.2. Using OpenOCD & GDB
        • 3.1.2.1.1.3. Using CCS
• 3.2. Kernel
  • 3.2.1. Users Guide
    • 3.2.1.1. Overview
    • 3.2.1.2. Getting the Kernel Source Code
    • 3.2.1.3. Preparing to Build
      • 3.2.1.3.1. Compiler
      • 3.2.1.3.2. Cleaning the Kernel Sources
    • 3.2.1.4. Configuring the Kernel
      • 3.2.1.4.1. Using Default Configurations
      • 3.2.1.4.2. Customizing the Configuration
    • 3.2.1.5. Compiling the Sources
      • 3.2.1.5.1. Compiling the Kernel
      • 3.2.1.5.2. Compiling the Device Tree Binaries
      • 3.2.1.5.3. Compiling the Kernel Modules
    • 3.2.1.6. Creating the kernel fitImage for high security device / GP devices
      • 3.2.1.6.1. Describing FIT source
      • 3.2.1.6.2. Generating the fitImage
      • 3.2.1.6.3. Build uboot again
    • 3.2.1.7. Installing the Kernel
      • 3.2.1.7.1. Installing the Kernel Image and Device Tree Binaries
      • 3.2.1.7.2. Installing the Kernel Modules
  • 3.2.2. Kernel Drivers
    • 3.2.2.1. Audio
      • 3.2.2.1.1. Introduction
      • 3.2.2.1.2. Software Architecture
      • 3.2.2.1.3. Generic commands and instructions
      • 3.2.2.1.4. Board-specific instructions
      • 3.2.2.1.5. Potential issues
      • 3.2.2.1.6. Additional Information
    • 3.2.2.2. GPIO
    • 3.2.2.3. I2C
    • 3.2.2.4. CPSW Ethernet
      • 3.2.2.4.1. Introduction
      • 3.2.2.4.2. Instances of the CPSW Subsystem
      • 3.2.2.4.3. TSN Documentation and Testing
    • 3.2.2.5. MMCSD
      • 3.2.2.5.1. Introduction
      • 3.2.2.5.2. References
      • 3.2.2.5.3. Features
      • 3.2.2.5.4. Supported ultra high speed (UHS) modes
      • 3.2.2.5.5. Driver configuration
      • 3.2.2.5.6. MMC support in Linux
      • 3.2.2.5.7. Steps for working around SD card issues in Linux
      • 3.2.2.5.8. Listing MMC devices from Linux
      • 3.2.2.5.9. Create partitions in eMMC UDA
        • 3.2.2.5.9.1. Create “boot” partition
        • 3.2.2.5.9.2. Create “root” partition
      • 3.2.2.5.10. Formatting eMMC partitions from Linux
        • 3.2.2.5.10.1. Format to vfat
        • 3.2.2.5.10.2. Format to ext4
      • 3.2.2.5.11. Flash eMMC for MMCSD boot
        • 3.2.2.5.11.1. Flash to eMMC “boot” partition
        • 3.2.2.5.11.2. Flash to eMMC “root” partition
    • 3.2.2.6. UART
      • 3.2.2.6.1. Introduction
      • 3.2.2.6.2. Driver Features
      • 3.2.2.6.3. Basic External loopback testing
    • 3.2.2.7. UBIFS
    • 3.2.2.8. Voltage & Thermal Management (VTM)
      • 3.2.2.8.1. Introduction
      • 3.2.2.8.2. Driver Features
      • 3.2.2.8.3. Finding More Information
    • 3.2.2.9. Watchdog
      • 3.2.2.9.1. Driver Configuration
        • 3.2.2.9.1.1. How to change timeout as kernel module parameter
        • 3.2.2.9.1.2. How to change timeout using DT property
      • 3.2.2.9.2. Kernel Configuration
      • 3.2.2.9.3. Driver Usage
  • 3.2.3. LTP-DDT Validation
• 3.3. Filesystem
• 3.4. Tools
  • 3.4.1. Development Tools
    • 3.4.1.1. Processor SDK Linux Top-Level Makefile
    • 3.4.1.2. Processor SDK Linux GCC Toolchain
    • 3.4.1.3. Creating SD Cards
    • 3.4.1.4. Processor SDK Linux Setup Script
  • 3.4.2. Pin Mux Tools
  • 3.4.3. Flash via Fastboot
    • 3.4.3.1. Installing Snagfactory
    • 3.4.3.2. Building bootloader binaries for Recovery
    • 3.4.3.3. Connections
      • 3.4.3.3.1. How to use Snagfactory
• 3.5. ARM Trusted Firmware-A
• 3.6. OP-TEE
  • 3.6.1. Getting the OP-TEE Source Code
  • 3.6.2. Setting up the toolchain paths
  • 3.6.3. Building OP-TEE OS
    • 3.6.3.1. Building the OP-TEE image
    • 3.6.3.2. Building the OP-TEE image with debug parameters
    • 3.6.3.3. Building OP-TEE with Pseudo RNG drivers
    • 3.6.3.4. Secure Storage with RPMB (For HS)
  • 3.6.4. Getting OP-TEE Client source code
  • 3.6.5. Building u-boot with OP-TEE OS