scripts/jme_eeprom.sh

   1 #!/bin/bash
   2
   3 ########################################
   4 # Getting eeprom data                  #
   5 ########################################
   6
   7 # Check bash version
   8 msg="Please use bash version 3 or later."
   9 if [[ ${BASH_VERSION} =~ ^([0-9])\.[0-9]\.(.*) ]]; then
  10         if (( ${BASH_REMATCH[1]} < 3 )); then
  11                 echo ${msg}
  12                 exit
  13         fi
  14 else
  15         echo ${msg}
  16         exit
  17 fi
  18
  19 # Parse arguments
  20 if [[ ! $1 =~ ^eth[0-9]$ ]]; then
  21         echo "Usage: $0 ethX"
  22         echo
  23         echo "Print eeprom info of JME Ethernet."
  24         echo
  25         exit
  26 fi
  27
  28 # Get eeprom data via ethtool
  29 PATH="${PATH}:/sbin:/usr/sbin:/bin:/usr/bin"
  30 romdata=$(ethtool -e $1 raw on |\
  31           od --width=1 --format=x1 --address-radix=x --output-duplicates |\
  32           awk '{print $2;}')
  33 if [[ -z "${romdata}" ]]; then
  34         exit
  35 fi
  36 romdata=$(echo ${romdata} | tr '[:lower:]' '[:upper:]' | sed 's/\( FF\)\+$//')
  37
  38 ########################################
  39 # Check for all non-optional data      #
  40 ########################################
  41
  42 # Check JME eeprom prefix
  43 echo -n "EEPROM prefix check: "
  44 if [[ ${romdata} =~ ^55\ AA\ (.*)$ ]]; then
  45         echo OK.
  46 else
  47         echo "Failed. (Not JMicron NIC?)"
  48         exit
  49 fi
  50 romdata=${BASH_REMATCH[1]}
  51
  52 # Check JME eeprom suffix
  53 echo -n "EEPROM suffix check: "
  54 if [[ ${romdata} =~ ^(.*)\ 80\ 00\ 00$ ]]; then
  55         echo OK.
  56 else
  57         echo "Failed (Not JMicron NIC?)."
  58         exit
  59 fi
  60 romdata=${BASH_REMATCH[1]}
  61
  62 # Check JME eeprom MAC Address
  63 echo -n "EEPROM MAC Address check: "
  64 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
  65         echo OK.
  66         MACADDR=${BASH_REMATCH[2]}:${BASH_REMATCH[3]}:${BASH_REMATCH[4]}:${BASH_REMATCH[5]}:${BASH_REMATCH[6]}:${BASH_REMATCH[7]}
  67         echo "       MAC Address: ${MACADDR}"
  68 else
  69         echo Failed.
  70         exit
  71 fi
  72 romdata="${BASH_REMATCH[1]} ${BASH_REMATCH[8]}"
  73
  74 ########################################
  75 # Print out all optional data         #
  76 ########################################
  77
  78 if [[ -z "${romdata}" ]]; then
  79         exit
  80 fi
  81
  82 # Print other eeprom data
  83 (( smicmd = 0 ))
  84 echo -e "\nOther eeprom data:"
  85 while [[ ! -z "${romdata}" ]]; do
  86         if [[ ! ${romdata} =~ ^[\ ]?(0[012])\ ([0-9A-F]{2})\ ([0-9A-F]{2})[\ ]?(.*) ]]; then
  87                 echo "    EEPROM contains error data"
  88                 exit
  89         fi
  90         cmd=${BASH_REMATCH[1]}
  91         address=${BASH_REMATCH[2]}
  92         value=${BASH_REMATCH[3]}
  93         romdata=${BASH_REMATCH[4]}
  94
  95         if [[ (( ${smicmd} == 0 )) && ${cmd} == "01" && ${address} == "53" ]]; then
  96                 (( ++smicmd )); v1=${value}
  97         elif [[ (( ${smicmd} == 1 )) && ${cmd} == "01" && ${address} == "52" ]]; then
  98                 (( ++smicmd )); v2=${value}
  99         elif [[ (( ${smicmd} == 2 )) && ${cmd} == "01" && ${address} == "51" ]]; then
 100                 (( ++smicmd )); v3=${value}
 101         elif [[ (( ${smicmd} == 3 )) && ${cmd} == "01" && ${address} == "50" ]]; then
 102                 (( smicmd = 0 ))
 103                 v4=${value}
 104                 data=${v1}${v2}
 105                 bcenv="scale = 0; obase = 10; ibase = 16;"
 106                 reg=$(echo "${bcenv} ${v3} / 8;" | bc)
 107                 phy=$(echo "${bcenv} a = ${v3}; b = ${v4};\
 108                             a %= 4; a *= 8; b /= 40; a + b;" | bc)
 109                 rw=$(echo "${bcenv} a = ${v4}; a /= 20; a % 2;" | bc)
 110                 if [[ ${rw} == "1" ]]; then
 111                         rw="Write"
 112                         value=" value=${data}"
 113                 else
 114                         rw="Read"
 115                         value=""
 116                 fi
 117                 valid=$(echo "${bcenv} a = ${v4}; a % 20;" | bc)
 118                 if [[ ${valid} == "16" ]]; then
 119                         valid="Valid"
 120                 else
 121                         valid="Invalid"
 122                 fi
 123                 echo "${valid} SMI Command: ${rw} phyaddr=${phy} reg=${reg}${value}"
 124         elif [[ (( ${smicmd} != 0 )) ]]; then
 125                 echo "    EEPROM contains error data"
 126                 exit
 127         else
 128                 if [[ ${cmd} == "00" ]]; then
 129                         echo -n "Configuration Space: "
 130                 elif [[ ${cmd} == "01" ]]; then
 131                         echo -n "First IO Space(BAR2): "
 132                 elif [[ ${cmd} == "02" ]]; then
 133                         echo -n "Second IO Space(BAR3): "
 134                 fi
 135                 echo "Address=${address} Value=${value}"
 136         fi
 137 done
 138