src/jtag/startup.tcl

   1 # Defines basic Tcl procs for OpenOCD JTAG module
   2
   3 # Executed during "init". Can be overridden
   4 # by board/target/... scripts
   5 proc jtag_init {} {
   6         if {[catch {jtag arp_init} err]!=0} {
   7                 # try resetting additionally
   8                 init_reset startup
   9         }
  10 }
  11
  12 # This reset logic may be overridden by board/target/... scripts as needed
  13 # to provide a reset that, if possible, is close to a power-up reset.
  14 #
  15 # Exit requirements include:  (a) JTAG must be working, (b) the scan
  16 # chain was validated with "jtag arp_init" (or equivalent), (c) nothing
  17 # stays in reset.  No TAP-specific scans were performed.  It's OK if
  18 # some targets haven't been reset yet; they may need TAP-specific scans.
  19 #
  20 # The "mode" values include:  halt, init, run (from "reset" command);
  21 # startup (at OpenOCD server startup, when JTAG may not yet work); and
  22 # potentially more (for reset types like cold, warm, etc)
  23 proc init_reset { mode } {
  24         if {[using_jtag]} {
  25                 jtag arp_init-reset
  26         }
  27 }
  28
  29 #########
  30
  31 # TODO: power_restore and power_dropout are currently neither
  32 # documented nor supported except on ZY1000.
  33
  34 proc power_restore {} {
  35         echo "Sensed power restore, running reset init and halting GDB."
  36         reset init
  37
  38         # Halt GDB so user can deal with a detected power restore.
  39         #
  40         # After GDB is halted, then output is no longer forwarded
  41         # to the GDB console.
  42         set targets [target names]
  43         foreach t $targets {
  44                 # New event script.
  45                 $t invoke-event arp_halt_gdb
  46         }
  47 }
  48
  49 add_help_text power_restore "Overridable procedure run when power restore is detected. Runs 'reset init' by default."
  50
  51 proc power_dropout {} {
  52         echo "Sensed power dropout."
  53 }
  54
  55 #########
  56
  57 # TODO: srst_deasserted and srst_asserted are currently neither
  58 # documented nor supported except on ZY1000.
  59
  60 proc srst_deasserted {} {
  61         echo "Sensed nSRST deasserted, running reset init and halting GDB."
  62         reset init
  63
  64         # Halt GDB so user can deal with a detected reset.
  65         #
  66         # After GDB is halted, then output is no longer forwarded
  67         # to the GDB console.
  68         set targets [target names]
  69         foreach t $targets {
  70                 # New event script.
  71                 $t invoke-event arp_halt_gdb
  72         }
  73 }
  74
  75 add_help_text srst_deasserted "Overridable procedure run when srst deassert is detected. Runs 'reset init' by default."
  76
  77 proc srst_asserted {} {
  78         echo "Sensed nSRST asserted."
  79 }
  80
  81 # measure actual JTAG clock
  82 proc measure_clk {} {
  83         set start_time [ms];
  84         set iterations 10000000;
  85         runtest $iterations;
  86         echo "Running at more than [expr $iterations.0 / ([ms]-$start_time)] kHz";
  87 }
  88
  89 add_help_text measure_clk "Runs a test to measure the JTAG clk. Useful with RCLK / RTCK."
  90
  91 proc default_to_jtag { f args } {
  92         set current_transport [transport select]
  93         if {[using_jtag]} {
  94                 eval $f $args
  95         } {
  96                 error "session transport is \"$current_transport\" but your config requires JTAG"
  97         }
  98 }
  99
 100 proc jtag args {
 101         eval default_to_jtag jtag $args
 102 }
 103
 104 proc jtag_rclk args {
 105         eval default_to_jtag jtag_rclk $args
 106 }
 107
 108 proc jtag_ntrst_delay args {
 109         eval default_to_jtag jtag_ntrst_delay $args
 110 }
 111
 112 proc jtag_ntrst_assert_width args {
 113         eval default_to_jtag jtag_ntrst_assert_width $args
 114 }
 115
 116 # BEGIN MIGRATION AIDS ...  these adapter operations originally had
 117 # JTAG-specific names despite the fact that the operations were not
 118 # specific to JTAG, or otherewise had troublesome/misleading names.
 119 #
 120 # FIXME phase these aids out after about April 2011
 121 #
 122 proc jtag_khz args {
 123         echo "DEPRECATED! use 'adapter_khz' not 'jtag_khz'"
 124         eval adapter_khz $args
 125 }
 126
 127 proc jtag_nsrst_delay args {
 128         echo "DEPRECATED! use 'adapter_nsrst_delay' not 'jtag_nsrst_delay'"
 129         eval adapter_nsrst_delay $args
 130 }
 131
 132 proc jtag_nsrst_assert_width args {
 133         echo "DEPRECATED! use 'adapter_nsrst_assert_width' not 'jtag_nsrst_assert_width'"
 134         eval adapter_nsrst_assert_width $args
 135 }
 136
 137 # stlink migration helpers
 138 proc stlink_device_desc args {
 139         echo "DEPRECATED! use 'hla_device_desc' not 'stlink_device_desc'"
 140         eval hla_device_desc $args
 141 }
 142
 143 proc stlink_serial args {
 144         echo "DEPRECATED! use 'hla_serial' not 'stlink_serial'"
 145         eval hla_serial $args
 146 }
 147
 148 proc stlink_layout args {
 149         echo "DEPRECATED! use 'hla_layout' not 'stlink_layout'"
 150         eval hla_layout $args
 151 }
 152
 153 proc stlink_vid_pid args {
 154         echo "DEPRECATED! use 'hla_vid_pid' not 'stlink_vid_pid'"
 155         eval hla_vid_pid $args
 156 }
 157
 158 proc stlink args {
 159         echo "DEPRECATED! use 'hla' not 'stlink'"
 160         eval hla $args
 161 }
 162
 163 # END MIGRATION AIDS