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ZCU102+AD9631 Linux image missing support for Neon, low CPU speed

The default (newest) Linaro image for ZCU102+AD9631 is missing neon support and CPU speed is on lower end.

How I can enable noen support on Linaro and increase clock ? Comparing with standard distribution on Pluto ZCU102 is much slower (not expected)

cpuinfo:

ZCU102

sched_clock: 56 bits at 99MHz, resolution 10ns, wraps
processor : 1
BogoMIPS : 199.98
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
Pluto: 
sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 4398046511103ns
model name : ARMv7 Processor rev 0 (v7l)
BogoMIPS : 666.66
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
Parents Reply
  • Well, if you run just a pure Xilinx kernel on the ZCU102, do you still see the issue?

    I wonder if it 's a HDL issue; that one is out of my scope of understanding [i.e. how FPGA interconnects with CPU to give this result].

    But in any case, I would first rule out Xilinx as the problem.

    FWIW: I don't have a ZCU102 around [with the isolation period], so I can't test.

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