rock64, compile problems "illegal instruction", "memory fault" -> ddr_333Mhz?

[hunderteins]

Thank you for your answer, but it shows basically the same. Problem is, when DMC is enabled, I get kernel oopses even when login with dropbear.

[quote pid='45731' dateline='1555417705']
$ grep '' /sys/class/devfreq/dmc/*
/sys/class/devfreq/dmc/available_frequencies:786000000 800000000 850000000 933000000 1066000000
/sys/class/devfreq/dmc/available_governors:dmc_ondemand powersave simple_ondemand
/sys/class/devfreq/dmc/cur_freq:786000000
/sys/class/devfreq/dmc/governor:dmc_ondemand
/sys/class/devfreq/dmc/max_freq:1066000000
/sys/class/devfreq/dmc/min_freq:786000000
/sys/class/devfreq/dmc/polling_interval:50
/sys/class/devfreq/dmc/system_status:0x1
/sys/class/devfreq/dmc/target_freq:786000000
/sys/class/devfreq/dmc/trans_stat:   From  :   To
/sys/class/devfreq/dmc/trans_stat:         :7860000008000000008500000009330000001066000000   time(ms)
/sys/class/devfreq/dmc/trans_stat:*786000000:       0       0       0       0       0     45925
/sys/class/devfreq/dmc/trans_stat: 800000000:       0       0       0       0       0         0
/sys/class/devfreq/dmc/trans_stat: 850000000:       0       0       0       0       0         0
/sys/class/devfreq/dmc/trans_stat: 933000000:       0       0       0       0       0         0
/sys/class/devfreq/dmc/trans_stat: 1066000000:       0       0       0       0       0         0
/sys/class/devfreq/dmc/trans_stat:Total transition : 0

[/quote]

I think these frequencies are set in arch/arm64/boot/dts/rockchip/rk3328.dtsi as dmc_opp_table. And 768Mhz is just to much.
I'll try my luck with 400Mhz and 600Mhz. It seems a trade off between stability and memory bandwidth.

Funny thing is, on my rockpro64 the target_freq is 400Mhz.

TIA,
hunderteins