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Nanopi NEO2 CPU frequency issue


ulorentz
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Hi!
I've recently bought a nanopi NEO2 which features an Allwinner H5. On FriendlyArm website (and on Allwinner's too) it is stated that the H5 is clocked 1.5Ghz. I need to perform some heavy job and and noticed that the cpu frequency hits, at full power, only 1Ghz. I checked using cpufreq-info and I got:

driver: cpufreq-dt
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 0 1 2 3
maximum transition latency: 244 us.
hardware limits: 120 MHz - 1.01 GHz
available frequency steps: 120 MHz, 240 MHz, 312 MHz, 480 MHz, 624 MHz, 816 MHz, 1.01 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 120 MHz and 1.01 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 1.01 GHz (asserted by call to hardware).
cpufreq stats: 120 MHz:58.40%, 240 MHz:0.75%, 312 MHz:0.82%, 480 MHz:0.47%, 624 MHz:0.65%, 816 MHz:0.64%, 1.01 GHz:38.28% (66)

which clearly says that the cpu is limited to 1.01 Ghz by hardware. I am sure the allwinner H5 could reach 1.5, so the options are two: or friendly elec has limited by hardware their nanopi (in that case it would absolutely not fair to state on the website 1.5ghz) or it is limited by the kernel.

Hoping the case is the second one (I bought two of them!), can you help me? Is there a way to compile the kernel allowing the true maximum frequency?

Thank you very much

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just to report back all three LTS boards are working great at 1,3GHz ( when needed ).

However I checked recently v1.1. ( NanoPi NEO2 LTS ) page and it states under CPU: " Frequency:4* Cortex-A53 1.5GHz "

Any chance to get this stable, or is 1.3GHz really the utmost that can be squeezed out?

Also updated " MIN_SPEED=120000 " ( instead of 480000 )

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3 hours ago, dolphs said:

1.5GHz


Those numbers are for marketing purposes. Read it as theoretical maximum, which doesn't give you any gain except more heat.

 

3 hours ago, dolphs said:

Any chance to get this stable, or is 1.3GHz really the utmost that can be squeezed out?

 

No. And leave MIN & MAX settings as is - they are fine tuned for best performance.

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