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spiwoks
Observer
Observer
1,052 Views
Registered: ‎08-24-2016

Booting ZynqMP brings up only ONE CPU!

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Hi all,

 

I am trying to boot a ZynqMP using JTAG according to the Zynq UltraScale+ MPSoC
Software Developer Guide. It works and boots Linux but only brings up ONE CPU.

 

I am using a TE0803 from Trenz and I have contacted them, but since booting the same
files from an SD card, they told me that only Xilinx can help me with this.

 

Any idea? On what could be wrong? Is it some register setting?

 

Cheers,

                            Ralf.

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spiwoks
Observer
Observer
1,093 Views
Registered: ‎08-24-2016

Hi Kranthi,

 

Thank you so much for your reply.

The kernel command-line parameter "maxcpus=4" did the trick. Now it brings up all four CPUs.

 

Cheers,

                         Ralf.

View solution in original post

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gudishak
Moderator
Moderator
1,043 Views
Registered: ‎06-27-2017

@spiwoks,

 

Can you try adding "maxcpus=4" in kernel boot arguments? which version of petalinux/Kernel you are using?

Can you check how many cores are defined in "cpus" device node in your device tree?

 

Regards
Kranthi
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Kranthi
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spiwoks
Observer
Observer
1,094 Views
Registered: ‎08-24-2016

Hi Kranthi,

 

Thank you so much for your reply.

The kernel command-line parameter "maxcpus=4" did the trick. Now it brings up all four CPUs.

 

Cheers,

                         Ralf.

View solution in original post

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