Boot Process for Primary Boot Device - 2022.1 English

Versal ACAP System Software Developers Guide (UG1304)

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2022.1 English

The boot process can be based on a primary boot device such as SD, eMMC, QSPI, OSPI, or on a slave interface such as JTAG or SelectMAP. At POR or system reset, the boot process starts with the primary boot:

  • BootROM
    • Reads the boot mode register to determine the primary boot device
    • Loads the PLM from the specified primary boot device into the PPU RAM
    • Releases the PPU to execute the PLM
  • PLM: Loads remainder of PDI content (Images and partitions) from the primary boot device.