Zynq SMP CPU0 Not Waking CPU1

Misra, Avinash Avinash.Misra at jhuapl.edu
Mon Dec 17 21:36:54 UTC 2018


Hi,

I'm attempting to get SMP running on my Zynq board and am having an issue. It would appear that during CPU Initialization CPU0 initializes and then loops through _ARM_Data_memory_barrier waiting to receive a message from CPU1 before starting. The issue is that it would appear that it never receives the message from CPU1. I am currently able to get around this by manually waking up CPU1 through the Xilinx SDK but am not sure why CPU1 is not automatically starting. Have I missed a step?

[cid:image001.png at 01D49626.B780EB30]


Thanks,
Avi Misra

JHU Applied Physics Laboratory
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