tcl/tools/firmware-recovery.tcl

   1 echo "\n\nFirmware recovery helpers"
   2 echo "Use -c firmware_help to get help\n"
   3
   4 set known_boards {
   5     "asus-rt-n16                ASUS RT-N16"
   6     "linksys-wrt54gl            Linksys WRT54GL v1.1"
   7     "netgear-dg834v3            Netgear DG834G v3"
   8     "bt-homehubv1               BT HomeHub v1"
   9 }
  10
  11 proc firmware_help { } {
  12     echo "
  13 Your OpenOCD command should look like this:
  14 openocd -f interface/<jtag adapter>.cfg -f tools/firmware-recovery.tcl -c \"<commands>*; shutdown\"
  15
  16 Where:
  17 <jtag adapter> is one of the supported devices, e.g. ftdi/jtagkey2
  18 <commands> are firmware-recovery commands separated by semicolon
  19
  20 Supported commands:
  21 firmware_help                   get this help
  22 list_boards                     list known boards and exit
  23 board <name>                    select board you work with
  24 list_partitions                 list partitions of the currently selected board
  25 dump_part <name> <filename>     save partition's contents to a file
  26 erase_part <name>               erase the given partition
  27 flash_part <name> <filename>    erase, flash and verify the given partition
  28 ram_boot <filename>             load binary file to RAM and run it
  29 adapter_khz <freq>              set JTAG clock frequency in kHz
  30
  31 For example, to clear nvram and reflash CFE on an RT-N16 using TUMPA, run:
  32 openocd -f interface/ftdi/tumpa.cfg -f tools/firmware-recovery.tcl \\
  33         -c \"board asus-rt-n16; erase_part nvram; flash_part CFE cfe-n16.bin; shutdown\"
  34 \n\n"
  35     shutdown
  36 }
  37
  38 # set default, can be overriden later
  39 adapter_khz 1000
  40
  41 proc get_partition { name } {
  42     global partition_list
  43     dict get $partition_list $name
  44 }
  45
  46 proc partition_desc { name } { lindex [get_partition $name] 0 }
  47 proc partition_start { name } { lindex [get_partition $name] 1 }
  48 proc partition_size { name } { lindex [get_partition $name] 2 }
  49
  50 proc list_boards { } {
  51     global known_boards
  52     echo "List of the supported boards:\n"
  53     echo "Board name\t\tDescription"
  54     echo "-----------------------------------"
  55     foreach i $known_boards {
  56         echo $i
  57     }
  58     echo "\n\n"
  59 }
  60
  61 proc board { name } {
  62     script [find board/$name.cfg]
  63 }
  64
  65 proc list_partitions { } {
  66     global partition_list
  67     set fstr "%-16s%-14s%-14s%s"
  68     echo "\nThe currently selected board is known to have these partitions:\n"
  69     echo [format $fstr Name Start Size Description]
  70     echo "-------------------------------------------------------"
  71     for {set i 0} {$i < [llength $partition_list]} {incr i 2} {
  72         set key [lindex $partition_list $i]
  73         echo [format $fstr $key [partition_start $key] [partition_size $key] [partition_desc $key]]
  74     }
  75     echo "\n\n"
  76 }
  77
  78 # Magic to work with any targets, including semi-functional
  79 proc prepare_target { } {
  80     init
  81     catch {halt}
  82     catch {reset init}
  83     catch {halt}
  84 }
  85
  86 proc dump_part { name filename } {
  87     prepare_target
  88     dump_image $filename [partition_start $name] [partition_size $name]
  89 }
  90
  91 proc erase_part { name } {
  92     prepare_target
  93     flash erase_address [partition_start $name] [partition_size $name]
  94 }
  95
  96 proc flash_part { name filename } {
  97     prepare_target
  98     flash write_image erase $filename [partition_start $name] bin
  99     echo "Verifying:"
 100     verify_image $filename [partition_start $name]
 101 }
 102
 103 proc ram_boot { filename } {
 104     global ram_boot_address
 105     prepare_target
 106     load_image $filename $ram_boot_address bin
 107     resume $ram_boot_address
 108 }
 109
 110 echo ""