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AR# 67996

Zynq UltraScale+ MPSoC: 2016.3 PMU firmware can hang when the debug prints are enabled.

Description

When Common Clock Framework (CCF) and Power management (PM) are enabled, Linux does not boot.

The PMU firmware will hang when the debug prints are enabled. This is because Linux is trying to turn off the UART which is being used by the PMU firmware.

Solution

To work around this issue, do not use UART prints in the PMU firmware, or else use the UART that is being used by Linux.

AR# 67996
Date Created 09/30/2016
Last Updated 11/14/2016
Status Active
Type General Article
Devices
  • Zynq UltraScale+ MPSoC
Tools
  • Vivado Design Suite - 2016.3