+#!/bin/bash
+
+########################################
+# Getting eeprom data #
+########################################
+
+# Check bash version
+msg="Please use bash version 3 or later."
+if [[ ${BASH_VERSION} =~ ^([0-9])\.[0-9]\.(.*) ]]; then
+ if (( ${BASH_REMATCH[1]} < 3 )); then
+ echo ${msg}
+ exit
+ fi
+else
+ echo ${msg}
+ exit
+fi
+
+# Parse arguments
+if [[ ! $1 =~ ^eth[0-9]$ ]]; then
+ echo "Usage: $0 ethX"
+ echo
+ echo "Print eeprom info of JME Ethernet."
+ echo
+ exit
+fi
+
+# Get eeprom data via ethtool
+PATH="${PATH}:/sbin:/usr/sbin:/bin:/usr/bin"
+romdata=$(ethtool -e $1 raw on |\
+ od --width=1 --format=x1 --address-radix=x --output-duplicates |\
+ awk '{print $2;}')
+if [[ -z "${romdata}" ]]; then
+ exit
+fi
+romdata=$(echo ${romdata} | tr '[:lower:]' '[:upper:]' | sed 's/\( FF\)\+$//')
+
+########################################
+# Check for all non-optional data #
+########################################
+
+# Check JME eeprom prefix
+echo -n "EEPROM prefix check: "
+if [[ ${romdata} =~ ^55\ AA\ (.*)$ ]]; then
+ echo OK.
+else
+ echo "Failed. (Not JMicron NIC?)"
+ exit
+fi
+romdata=${BASH_REMATCH[1]}
+
+# Check JME eeprom suffix
+echo -n "EEPROM suffix check: "
+if [[ ${romdata} =~ ^(.*)\ 80\ 00\ 00$ ]]; then
+ echo OK.
+else
+ echo "Failed (Not JMicron NIC?)."
+ exit
+fi
+romdata=${BASH_REMATCH[1]}
+
+# Check JME eeprom MAC Address
+echo -n "EEPROM MAC Address check: "
+if [[ ${romdata} =~ ^(.*)[\ ]?01\ 38\ ([0-9A-F]{2})\ 01\ 39\ ([0-9A-F]{2})\ 01\ 3A\ ([0-9A-F]{2})\ 01\ 3B\ ([0-9A-F]{2})\ 01\ 3C\ ([0-9A-F]{2})\ 01\ 3D\ ([0-9A-F]{2})[\ ]?(.*)$ ]]; then
+ echo OK.
+ MACADDR=${BASH_REMATCH[2]}:${BASH_REMATCH[3]}:${BASH_REMATCH[4]}:${BASH_REMATCH[5]}:${BASH_REMATCH[6]}:${BASH_REMATCH[7]}
+ echo " MAC Address: ${MACADDR}"
+else
+ echo Failed.
+ exit
+fi
+romdata="${BASH_REMATCH[1]} ${BASH_REMATCH[8]}"
+
+########################################
+# Print out all optional data #
+########################################
+
+if [[ -z "${romdata}" ]]; then
+ exit
+fi
+
+# Print other eeprom data
+(( smicmd = 0 ))
+echo -e "\nOther eeprom data:"
+while [[ ! -z "${romdata}" ]]; do
+ if [[ ! ${romdata} =~ ^[\ ]?(0[012])\ ([0-9A-F]{2})\ ([0-9A-F]{2})[\ ]?(.*) ]]; then
+ echo " EEPROM contains error data"
+ exit
+ fi
+ cmd=${BASH_REMATCH[1]}
+ address=${BASH_REMATCH[2]}
+ value=${BASH_REMATCH[3]}
+ romdata=${BASH_REMATCH[4]}
+
+ if [[ (( ${smicmd} == 0 )) && ${cmd} == "01" && ${address} == "53" ]]; then
+ (( ++smicmd )); v1=${value}
+ elif [[ (( ${smicmd} == 1 )) && ${cmd} == "01" && ${address} == "52" ]]; then
+ (( ++smicmd )); v2=${value}
+ elif [[ (( ${smicmd} == 2 )) && ${cmd} == "01" && ${address} == "51" ]]; then
+ (( ++smicmd )); v3=${value}
+ elif [[ (( ${smicmd} == 3 )) && ${cmd} == "01" && ${address} == "50" ]]; then
+ (( smicmd = 0 ))
+ v4=${value}
+ data=${v1}${v2}
+ bcenv="scale = 0; obase = 10; ibase = 16;"
+ reg=$(echo "${bcenv} ${v3} / 8;" | bc)
+ phy=$(echo "${bcenv} a = ${v3}; b = ${v4};\
+ a %= 4; a *= 8; b /= 40; a + b;" | bc)
+ rw=$(echo "${bcenv} a = ${v4}; a /= 20; a % 2;" | bc)
+ if [[ ${rw} == "1" ]]; then
+ rw="Write"
+ value=" value=${data}"
+ else
+ rw="Read"
+ value=""
+ fi
+ valid=$(echo "${bcenv} a = ${v4}; a % 20;" | bc)
+ if [[ ${valid} == "16" ]]; then
+ valid="Valid"
+ else
+ valid="Invalid"
+ fi
+ echo "${valid} SMI Command: ${rw} phyaddr=${phy} reg=${reg}${value}"
+ elif [[ (( ${smicmd} != 0 )) ]]; then
+ echo " EEPROM contains error data"
+ exit
+ else
+ if [[ ${cmd} == "00" ]]; then
+ echo -n "Configuration Space: "
+ elif [[ ${cmd} == "01" ]]; then
+ echo -n "First IO Space(BAR2): "
+ elif [[ ${cmd} == "02" ]]; then
+ echo -n "Second IO Space(BAR3): "
+ fi
+ echo "Address=${address} Value=${value}"
+ fi
+done
+