AR# 55329

Zynq-7000 SoC, Boot Sys - BootROM 128-KB CRC self-check is not supported


BootROM will not perform a full 128-KB CRC self-check of the ROM contents even if the corresponding eFuse bit setting is programmed in the PS.


Impact:Trivial. If there is a post-production bit failure in the ROM, then the behavior will be undefined instead of shutting down.
Work-around:Insert a DMB or DSB instruction between the write to Strongly Ordered memory region and the LDREX instruction.
Configurations Affected:Systems that use the CPUs.
Device Revision(s) Affected:Refer to (Xilinx Answer 47916) - Zynq-7000 SoC Silicon Revision Differences.

the ROM is tested and screened for manufacturing defects during production.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
47916 Zynq-7000 SoC Devices - Silicon Revision Differences N/A N/A
AR# 55329
Date 05/28/2018
Status Active
Type Design Advisory