View source for Template:CPU freq and num of cores body

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= CPU cores =
There are two ways to disable/enable CPU cores:<br>
<br>
1. Add 'maxcpus=n' (n being the number of cores you wish to activate), to the kernel command line (the bootargs from U-Boot).<br>
E.g. Assuming you are using our latest U-Boot, stop at the U-Boot command line and enter:
 => setenv kernelargs maxcpus=2
<br>
2. To disable/enable cores at kernel runtime:<br>
Disable core X:<br>
 # echo 0 > /sys/devices/system/cpu/cpuX/online
Enable core X:<br>
 # echo 1 > /sys/devices/system/cpu/cpuX/online
X being the core number you want to enable/disable, and can range from '1' to '(number of actual CPU cores)-1' (cpu0 is always enabled).<br>
<br>
To see the active cores, run:<br>
 # cat /proc/cpuinfo

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