Issue with enable all cores in T1042

[anoopvijay]

Hi All,

I'm facing an issue with enabling all cores in T1042 processor.

Error message from Linux:

smp_85xx_kick_cpu: timeout waiting for core 1 to ack

smp: failed starting cpu 1 (rc -2)

smp_85xx_kick_cpu: timeout waiting for core 2 to ack

smp: failed starting cpu 2 (rc -2)

smp_85xx_kick_cpu: timeout waiting for core 3 to ack

smp: failed starting cpu 3 (rc -2)

Error Message from U-Boot:

CPU up timeout. CPU up mask is 1 should be f

Appreciated any suggestion to resolve the issue...

Thanks,

Anoop

[Pavel]

Command for disabling CPU core 4 online:

echo 0 > /sys/devices/system/cpu/cpu3/online

Command for enabling CPU core 4 online:

echo 1 > /sys/devices/system/cpu/cpu3/online

Command for verifying:

grep "processor" /proc/cpuinfo

Look at the following page for CPU enabling/disabling:

http://www.cyberciti.biz/faq/debian-rhel-centos-redhat-suse-hotplug-cpu/linux-turn-on-off-cpu-core-c...

See attached file for supporting the "Symmetric multi-processing"

Have a great day,
Pavel Chubakov

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