diff options
Diffstat (limited to 'src/helper')
| -rw-r--r-- | src/helper/Makefile.am | 2 | ||||
| -rw-r--r-- | src/helper/startup.tcl | 231 |
2 files changed, 3 insertions, 230 deletions
diff --git a/src/helper/Makefile.am b/src/helper/Makefile.am index 9557f5b..22b3c33 100644 --- a/src/helper/Makefile.am +++ b/src/helper/Makefile.am @@ -50,6 +50,8 @@ noinst_HEADERS = \ system.h \ bin2char.c +EXTRA_DIST = startup.tcl + BIN2C = bin2char$(EXEEXT_FOR_BUILD) BUILT_SOURCES = $(BIN2C) diff --git a/src/helper/startup.tcl b/src/helper/startup.tcl index 096f03a..eefb690 100644 --- a/src/helper/startup.tcl +++ b/src/helper/startup.tcl @@ -1,11 +1,8 @@ -# -# Defines basic Tcl procs that must be there for -# OpenOCD to work. +# Defines basic Tcl procs that must exist for OpenOCD scripts to work. # # Embedded into OpenOCD executable # - # Help text list. A list of command + help text pairs. # # Commands can be more than one word and they are stored @@ -22,21 +19,6 @@ proc get_help_text {} { } -# Show flash in human readable form -# This is an example of a human readable form of a low level fn -proc flash_banks {} { - set i 0 - set result "" - foreach {a} [ocd_flash_banks] { - if {$i > 0} { - set result "$result\n" - } - set result [format "$result#%d: %s at 0x%08x, size 0x%08x, buswidth %d, chipwidth %d" $i $a(name) $a(base) $a(size) $a(bus_width) $a(chip_width)] - set i [expr $i+1] - } - return $result -} - # We need to explicitly redirect this to the OpenOCD command # as Tcl defines the exit proc proc exit {} { @@ -133,207 +115,6 @@ proc script {filename} { add_help_text script "<filename> - filename of OpenOCD script (tcl) to run" -# Handle GDB 'R' packet. Can be overriden by configuration script, -# but it's not something one would expect target scripts to do -# normally -proc ocd_gdb_restart {target_id} { - # Fix!!! we're resetting all targets here! Really we should reset only - # one target - reset halt -} - -######### - -# Temporary migration aid. May be removed starting in January 2011. -proc armv4_5 params { - echo "DEPRECATED! use 'arm $params' not 'armv4_5 $params'" - arm $params -} - -######### - -# This reset logic may be overridden by board/target/... scripts as needed -# to provide a reset that, if possible, is close to a power-up reset. -# -# Exit requirements include: (a) JTAG must be working, (b) the scan -# chain was validated with "jtag arp_init" (or equivalent), (c) nothing -# stays in reset. No TAP-specific scans were performed. It's OK if -# some targets haven't been reset yet; they may need TAP-specific scans. -# -# The "mode" values include: halt, init, run (from "reset" command); -# startup (at OpenOCD server startup, when JTAG may not yet work); and -# potentially more (for reset types like cold, warm, etc) -proc init_reset { mode } { - jtag arp_init-reset -} - - -global in_process_reset -set in_process_reset 0 - -# Catch reset recursion -proc ocd_process_reset { MODE } { - global in_process_reset - if {$in_process_reset} { - set in_process_reset 0 - return -code error "'reset' can not be invoked recursively" - } - - set in_process_reset 1 - set success [expr [catch {ocd_process_reset_inner $MODE} result]==0] - set in_process_reset 0 - - if {$success} { - return $result - } else { - return -code error $result - } -} - -proc ocd_process_reset_inner { MODE } { - set targets [target names] - - # If this target must be halted... - set halt -1 - if { 0 == [string compare $MODE halt] } { - set halt 1 - } - if { 0 == [string compare $MODE init] } { - set halt 1; - } - if { 0 == [string compare $MODE run ] } { - set halt 0; - } - if { $halt < 0 } { - return -error "Invalid mode: $MODE, must be one of: halt, init, or run"; - } - - # Target event handlers *might* change which TAPs are enabled - # or disabled, so we fire all of them. But don't issue any - # target "arp_*" commands, which may issue JTAG transactions, - # unless we know the underlying TAP is active. - # - # NOTE: ARP == "Advanced Reset Process" ... "advanced" is - # relative to a previous restrictive scheme - - foreach t $targets { - # New event script. - $t invoke-event reset-start - } - - # Use TRST or TMS/TCK operations to reset all the tap controllers. - # TAP reset events get reported; they might enable some taps. - init_reset $MODE - - # Examine all targets on enabled taps. - foreach t $targets { - if {[jtag tapisenabled [$t cget -chain-position]]} { - $t arp_examine - } - } - - # Assert SRST, and report the pre/post events. - # Note: no target sees SRST before "pre" or after "post". - foreach t $targets { - $t invoke-event reset-assert-pre - } - foreach t $targets { - # C code needs to know if we expect to 'halt' - if {[jtag tapisenabled [$t cget -chain-position]]} { - $t arp_reset assert $halt - } - } - foreach t $targets { - $t invoke-event reset-assert-post - } - - # Now de-assert SRST, and report the pre/post events. - # Note: no target sees !SRST before "pre" or after "post". - foreach t $targets { - $t invoke-event reset-deassert-pre - } - foreach t $targets { - # Again, de-assert code needs to know if we 'halt' - if {[jtag tapisenabled [$t cget -chain-position]]} { - $t arp_reset deassert $halt - } - } - foreach t $targets { - $t invoke-event reset-deassert-post - } - - # Pass 1 - Now wait for any halt (requested as part of reset - # assert/deassert) to happen. Ideally it takes effect without - # first executing any instructions. - if { $halt } { - foreach t $targets { - if {[jtag tapisenabled [$t cget -chain-position]] == 0} { - continue - } - - # Wait upto 1 second for target to halt. Why 1sec? Cause - # the JTAG tap reset signal might be hooked to a slow - # resistor/capacitor circuit - and it might take a while - # to charge - - # Catch, but ignore any errors. - catch { $t arp_waitstate halted 1000 } - - # Did we succeed? - set s [$t curstate] - - if { 0 != [string compare $s "halted" ] } { - return -error [format "TARGET: %s - Not halted" $t] - } - } - } - - #Pass 2 - if needed "init" - if { 0 == [string compare init $MODE] } { - foreach t $targets { - if {[jtag tapisenabled [$t cget -chain-position]] == 0} { - continue - } - - set err [catch "$t arp_waitstate halted 5000"] - # Did it halt? - if { $err == 0 } { - $t invoke-event reset-init - } - } - } - - foreach t $targets { - $t invoke-event reset-end - } -} - -######### - -# REVISIT power_restore, power_dropout, srst_deasserted, srst_asserted -# are currently neither documented nor supported except on ZY1000. - -proc power_restore {} { - puts "Sensed power restore." - reset init -} - -add_help_text power_restore "Overridable procedure run when power restore is detected. Runs 'reset init' by default." - -proc power_dropout {} { - puts "Sensed power dropout." -} - -proc srst_deasserted {} { - puts "Sensed nSRST deasserted." - reset init -} -add_help_text srst_deasserted "Overridable procedure run when srst deassert is detected. Runs 'reset init' by default." - -proc srst_asserted {} { - puts "Sensed nSRST asserted." -} - ######### # catch any exceptions, capture output and return output @@ -343,13 +124,3 @@ proc capture_catch {a} { } result return $result } - - -# Executed during "init". Can be overridden -# by board/target/... scripts -proc jtag_init {} { - if {[catch {jtag arp_init} err]!=0} { - # try resetting additionally - init_reset startup - } -} |