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Visitor skidaddytn
Registered: ‎11-17-2017

zynq 7000, efuse from Linux?

We are programming the encryption key efuse w/Jtag interface in manufacturing, and this is ok, but I am wondering,   Is it possible to know that the eFuse encryption key has been burned from Linux?   Again, only looking for a yes, or no, we don't need to readback any other information other than it has been burned.

Reason is, we have boards in development here that can run an unsecured boot.bin.   It would be nice to be able to know without trial and error from our firmware upgrade system whether we have the correct file.  In order to do that, we need to know what the hardware is expecting.



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Xilinx Employee
Xilinx Employee
Registered: ‎10-11-2011

Re: zynq 7000, efuse from Linux?

We have a mechanism for MPSoC: https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841682/Solution+ZynqMP+SoC+revision+read+mechanism

Not sure on what's available for zynq-7000.

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