SDAA123 January   2026 DRA821U-Q1 , DRA829J-Q1 , DRA829V-Q1 , TDA4AH-Q1 , TDA4AL-Q1 , TDA4AP-Q1 , TDA4APE-Q1 , TDA4VE-Q1 , TDA4VH-Q1 , TDA4VL-Q1 , TDA4VM , TDA4VM-Q1 , TDA4VP-Q1 , TDA4VPE-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 ROM Loading Bootloader
  5. 2Secondary Program Loader
    1. 2.1 Normal Boot Flow
    2. 2.2 Falcon Boot Flow
  6. 3Secondary Boot Loader
    1. 3.1 Development Boot Flow
    2. 3.2 Optimized Boot Flow
    3. 3.3 Boot APP (Tertiary Bootloader)
  7. 4Summary
  8. 5References

2 Secondary Program Loader

Linux bootloader uses Secondary Program Loader (SPL) and U-Boot to boot various CPUs. There are two ways to boot up to linux using SPL boot flow

  • Normal Boot flow
  • Falcon Boot flow