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How to configure 4 CPUs on SABRE board for smart device

Question asked by Jackey Ko on Apr 27, 2016
Latest reply on Apr 28, 2016 by Jackey Ko

Hi Community,

 

I use the SABRE board on kernel-3.14.28.

The SABRE borad is I.MX6Q(4 cpus)

So, I checked number of CPU using cat /proc/cpuinfo.

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root@imx6qsabresd:~# cat /proc/cpuinfo
processor       : 0
model name      : ARMv7 Processor rev 10 (v7l)
Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x2
CPU part        : 0xc09
CPU revision    : 10

processor       : 1
model name      : ARMv7 Processor rev 10 (v7l)
Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x2
CPU part        : 0xc09
CPU revision    : 10

Hardware        : Freescale i.MX6 Quad/DualLite (Device Tree)
Revision        : 0000
Serial          : 0000000000000000
root@imx6qsabresd:~#

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but, cpu setting is 2 cpu.

I would like to know how to configure 4 CPUs in u-boot or kenel feature or device tree.

 

Thanks,

Jackey

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