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.
  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.
  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 $iterations;
  86         set speed [expr "$iterations.0 / ([ms] - $start_time)"]
  87         echo "Running at more than $speed kHz";
  88 }
  89
  90 add_help_text measure_clk "Runs a test to measure the JTAG clk. Useful with RCLK / RTCK."
  91
  92 proc default_to_jtag { f args } {
  93         set current_transport [transport select]
  94         if {[using_jtag]} {
  95                 eval $f $args
  96         } {
  97                 error "session transport is \"$current_transport\" but your config requires JTAG"
  98         }
  99 }
 100
 101 proc jtag args {
 102         eval default_to_jtag jtag $args
 103 }
 104
 105 proc jtag_rclk args {
 106         eval default_to_jtag jtag_rclk $args
 107 }
 108
 109 proc jtag_ntrst_delay args {
 110         eval default_to_jtag jtag_ntrst_delay $args
 111 }
 112
 113 proc jtag_ntrst_assert_width args {
 114         eval default_to_jtag jtag_ntrst_assert_width $args
 115 }
 116
 117 # BEGIN MIGRATION AIDS ...  these adapter operations originally had
 118 # JTAG-specific names despite the fact that the operations were not
 119 # specific to JTAG, or otherwise had troublesome/misleading names.
 120 #
 121 # FIXME phase these aids out after some releases
 122 #
 123 lappend _telnet_autocomplete_skip jtag_reset
 124 proc jtag_reset args {
 125         echo "DEPRECATED! use 'adapter \[de\]assert' not 'jtag_reset'"
 126         switch $args {
 127                 "0 0"
 128                         {eval adapter deassert trst deassert srst}
 129                 "0 1"
 130                         {eval adapter deassert trst assert srst}
 131                 "1 0"
 132                         {eval adapter assert trst deassert srst}
 133                 "1 1"
 134                         {eval adapter assert trst assert srst}
 135                 default
 136                         {return -code 1 -level 1 "jtag_reset: syntax error"}
 137         }
 138 }
 139
 140 lappend _telnet_autocomplete_skip adapter_khz
 141 proc adapter_khz args {
 142         echo "DEPRECATED! use 'adapter speed' not 'adapter_khz'"
 143         eval adapter speed $args
 144 }
 145
 146 lappend _telnet_autocomplete_skip adapter_name
 147 proc adapter_name args {
 148         echo "DEPRECATED! use 'adapter name' not 'adapter_name'"
 149         eval adapter name $args
 150 }
 151
 152 lappend _telnet_autocomplete_skip adapter_nsrst_delay
 153 proc adapter_nsrst_delay args {
 154         echo "DEPRECATED! use 'adapter srst delay' not 'adapter_nsrst_delay'"
 155         eval adapter srst delay $args
 156 }
 157
 158 lappend _telnet_autocomplete_skip adapter_nsrst_assert_width
 159 proc adapter_nsrst_assert_width args {
 160         echo "DEPRECATED! use 'adapter srst pulse_width' not 'adapter_nsrst_assert_width'"
 161         eval adapter srst pulse_width $args
 162 }
 163
 164 lappend _telnet_autocomplete_skip interface
 165 proc interface args {
 166         echo "DEPRECATED! use 'adapter driver' not 'interface'"
 167         eval adapter driver $args
 168 }
 169
 170 lappend _telnet_autocomplete_skip interface_transports
 171 proc  interface_transports args {
 172         echo "DEPRECATED! use 'adapter transports' not 'interface_transports'"
 173         eval adapter transports $args
 174 }
 175
 176 lappend _telnet_autocomplete_skip interface_list
 177 proc  interface_list args {
 178         echo "DEPRECATED! use 'adapter list' not 'interface_list'"
 179         eval adapter list $args
 180 }
 181
 182 lappend _telnet_autocomplete_skip ftdi_location
 183 proc ftdi_location args {
 184         echo "DEPRECATED! use 'adapter usb location' not 'ftdi_location'"
 185         eval adapter usb location $args
 186 }
 187
 188 lappend _telnet_autocomplete_skip xds110_serial
 189 proc xds110_serial args {
 190         echo "DEPRECATED! use 'xds110 serial' not 'xds110_serial'"
 191         eval xds110 serial $args
 192 }
 193
 194 lappend _telnet_autocomplete_skip xds110_supply_voltage
 195 proc xds110_supply_voltage args {
 196         echo "DEPRECATED! use 'xds110 supply' not 'xds110_supply_voltage'"
 197         eval xds110 supply $args
 198 }
 199
 200 proc hla {cmd args} {
 201         tailcall "hla $cmd" {*}$args
 202 }
 203
 204 lappend _telnet_autocomplete_skip "hla newtap"
 205 proc "hla newtap" {args} {
 206         echo "DEPRECATED! use 'swj_newdap' not 'hla newtap'"
 207         eval swj_newdap $args
 208 }
 209
 210 # END MIGRATION AIDS