SPRADK5 June   2025 TDA4VM

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Physical Boot Mode DIP Switch Configuration
    1. 2.1 eMMC Boot Mode Switch for Primary Boot Mode
    2. 2.2 MMC/SD Boot Mode Switch for Backup Boot Mode
  6. 3Experiment
    1. 3.1 Prepare eMMC Boot Images for Primary Boot Mode
    2. 3.2 Prepare MMC/SD Boot Images for Backup Boot Mode
    3. 3.3 eMMC Memory Layout
    4. 3.4 Verify Redundant Boot
  7. 4Summary
  8. 5References

3.3 eMMC Memory Layout

Table 3-1 eMMC Layout for Primary and Backup Boot Mode
eMMC Layout Binaries Comment
Boot area partition for primary boot (raw mode) tiboot3.bin Offset: 0x0
tifs.bin Offset: 0x400
app Offset: 0x1400
User data area for backup boot (file system) tiboot3.bin
tifs.bin
app
User data area (file system) lateapp1 Common for primary and backup boot mode
lateapp2
atf_optee.appimage
ifs_qnx.appimage

Primary and backup applications (bootapps) must load the specified binaries from the eMMC User Data Area (UDA) partition.

  • lateapp1
  • lateapp2
  • atf_optee.appimage
  • ifs_qnx.appimage

This arrangement provides a consistent runtime environment regardless of which boot path is taken.