Ok so I think I have this figured out. It doesn't work at all in Armbian 23.05.1 with the 6.x kernel no matter what I try. It does work in the older Armbian 23.02.2 Jammy (kernel 5.15.93) but the given instructions didn't work for me and needed additional commands. I had to enable the rk3328-opp-1.5ghz overlay or else the max frequency was locked to 1296 MHz. I also found the MAX_SPEED value in the instructions to be too low. To get it to work in 23.02.2:
First you have to enable the rk3328-opp-1.5ghz overlay in armbian-config (System > Hardware > rk3328-opp-1.5ghz) or just add it to the overlays line in /boot/armbianEnv.txt and reboot. Next open the /etc/default/cpufrequtils file and find the MAX_SPEED line. Change the MAX_SPEED to 1512000 and save. Now restart the cpufrequtil service and armbianmonitor -m should show 1512 MHz. If the frequency is still locked then check /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_max_freq. If it outputs the lower value then the overlay didn't apply.
Original post:
Hello, I recently purchased a Libre Renegade (RK3328) and installed the latest Armbian release (Armbian 23.05.1 jammy) from this page. On that same page it lists instructions to adjust the maximum clock speed to 1.5 GHz but they appear to not have any effect as armbianmonitor -m never shows the new maximum clock (I can lower it though, I just can't go above 1296 MHz). I've attempted to enable the rk3328-opp-1.5ghz overlay using armbian-config but it doesn't appear to be working. Here's my armbianmonitor output: https://paste.armbian.com/iyagokujij (temps are high because I had the fan off, I do have a heatsink and fan)
Thanks in advance for any help you can provide.
