PLM Subsystem - 2021.2 English

Versal ACAP System Software Developers Guide (UG1304)

Document ID
UG1304
Release Date
2021-10-27
Version
2021.2 English

PLM and PMC CDO together constitute the PLM subsystem. PMC CDO contains the details of the device topology, subsystem details, and PMC configuration data.

Table 1. Components of the PLM Subsystem
File Contents
PLM ELF PLM ELF File
PMC CDO PMC CDO file
  • Device topology subsystem details
  • PMC Configuration: Register writes/polls for MIO, clocks, resets

The BootROM loads the PLM ELF and PMC CDO files to the PPU RAM and PMC RAM, respectively.

After the BootROM handoff to the PLM, the PLM performs the following tasks:

  • Initializes the PPU and register interrupts.
  • Initializes the modules to register the CDO/IPI commands and handlers.
  • Configures the PMC CDO file.
    • Device topology with PMC CDO commands to registers the nodes.
    • General/platform management calls to initialize the PMC and LPD MIO, clocks, etc.
      • PMC initialization for clocks, MIOs, resets.