Add soctemp and pmutemp shell function to A20 based distros

Add to /etc/zsh/zprofile

if [ -d /etc/profile.d ]; then
  for i in /etc/profile.d/*.sh; do
    if [ -r $i ]; then
      . $i
    fi
  done
  unset i
fi

Add as /etc/profile.d/get-thermal-data.sh

#/bin/sh
soctemp() {
    # ensure module sunxi-dbgreg.ko is loaded
    grep -q sunxi_dbgreg </proc/modules || modprobe sunxi-dbgreg

    # prepare registers
    echo 'f1c25000:27003f' > /sys/devices/virtual/misc/sunxi-dbgreg/rw/write;
    echo 'f1c25010:40000' > /sys/devices/virtual/misc/sunxi-dbgreg/rw/write;
    echo 'f1c25018:10fff' > /sys/devices/virtual/misc/sunxi-dbgreg/rw/write;
    echo 'f1c25004:10' > /sys/devices/virtual/misc/sunxi-dbgreg/rw/write;

    # write value to syslog
    echo 'f1c25020' > /sys/devices/virtual/misc/sunxi-dbgreg/rw/read;

    # wait 0.1 seconds
    sleep 0.1

    # read return value from syslog and transform it into degrees Celsius
    HexVal=$(tail /var/log/syslog | awk -F" 0x" '/ 0x/ {print $2}' | tail -n1 | tr '[:lower:]' '[:upper:]')
    RawVal=$(echo "ibase=16; ${HexVal}" | bc)
    echo "scale=1; (${RawVal}-1447)/10" | bc
} # soctemp

pmutemp() {
    read RawVal </sys/devices/platform/sunxi-i2c.0/i2c-0/0-0034/temp1_input
    echo "scale=1; (${RawVal}/1000" | bc
} # pmutemp