Messages in this thread | | | Date | Tue, 9 Feb 2021 23:42:23 +0100 | From | Pali Rohár <> | Subject | Re: [PATCH mvebu v2 00/10] Armada 37xx: Fix cpufreq changing base CPU speed to 800 MHz from 1000 MHz |
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On Tuesday 09 February 2021 13:45:08 nnet wrote: > On Tue, Feb 9, 2021, at 1:33 PM, Pali Rohár wrote: > > On Tuesday 09 February 2021 13:00:26 nnet wrote: > > > > If you have other Armada 3720 boards (Espressobin v5/v7, uDPU, Devel Board, ...) then it will be nice to do an additional tests and check if instability issues are finally fixed. > > > > > > These patches applied to the 5.4.96 in OpenWrt (98d61b5) work fine so far on an Espressobin v7 AFAICT per changing values in /sys/devices/system/cpu/cpufreq/policy0. > > > > > > Are these changes intended to work @1.2 GHz on the v7? > > > > Hello! Do you have 1.2 GHz A3720 SoC? > > Maybe (not)? ESPRESSObin_V7_1-0 on the underside.
Look at the package of SoC chip. On top of the package is printed identifier 88F3720. On the last line should be one of the string: C080, C100, C120, I080, I100 which identifies frequency (080 = 800 MHz, 100 = 1 GHz, 120 = 1.2 GHz)
Can you check what is printed on A3720 SoC package?
> BTW, with the 1200_750 firmware and the patches: > > root@OpenWrt:/sys/devices/system/cpu/cpufreq/policy0# cat scaling_available_frequencies > 200000 300000 600000 1200000 > > Of course that could mean nothing, but thought I'd mention what I do see.
This is value set by firmware file which you have started.
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