Scale frequencies of Tinker Board on boot

build/160-asus-tinker-board

@@ -6,13 +6,27 @@ platform=$(/usr/local/share/nems/nems-scripts/info.sh platform)
 if (( $platform == 100 )) || (( $platform == 101 )); then
 
   # Lower the CPU frequency to reduce temperature and improve reliability
-  echo 1300000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
-  echo 1300000 > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
-  echo 1300000 > /sys/devices/system/cpu/cpu2/cpufreq/scaling_max_freq
-  echo 1300000 > /sys/devices/system/cpu/cpu3/cpufreq/scaling_max_freq
+  # Find what's available in /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
+  echo 1200000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
+  echo 1200000 > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
+  echo 1200000 > /sys/devices/system/cpu/cpu2/cpufreq/scaling_max_freq
+  echo 1200000 > /sys/devices/system/cpu/cpu3/cpufreq/scaling_max_freq
   echo conservative > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
   echo conservative > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
   echo conservative > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
   echo conservative > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
 
+  # Do this every time I boot
+  addition="/root/nems/nems-admin/build/160-asus-tinker-board\n"
+  if ! grep -q "160-asus-tinker-board" /etc/rc.local; then
+    if grep -q "exit" /etc/rc.local; then
+      # This file contains an exit command, so make sure our new command comes before it
+      /bin/sed -i -- 's,exit,'"$addition"'exit,g' /etc/rc.local
+    else
+      # No exit command within the file, so just add it
+      echo "PLACEHERE" >> /etc/rc.local
+      /bin/sed -i -- 's,PLACEHERE,'"$addition"'exit 0,g' /etc/rc.local
+    fi
+  fi
+
 fi