# do the name mangling from "flash banks" to "flash_banks"
if {[llength $args]>=2} {
set cmd_name "[lindex $args 0]_[lindex $args 1]"
- # Fix?? add a check here if this is a command?
- # we'll strip away args until we fail anyway...
- return [eval "$cmd_name [lrange $args 2 end]"]
+ if {[catch {info body $cmd_name}]==0} {
+ # the command exists, try it...
+ return [eval "$cmd_name [lrange $args 2 end]"]
+ }
}
# This really is an unknown command.
return -code error "Unknown command: $args"
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
+ # of the "arp_*" commands, which may issue JTAG transactions,
+ # unless we know the underlying TAP is active.
+
foreach t [ target names ] {
# New event script.
$t invoke-event reset-start
# Init the tap controller.
jtag arp_init-reset
- # Examine all targets.
+ # Examine all targets on enabled taps.
foreach t [ target names ] {
- $t arp_examine
+ if {[jtag tapisenabled [$t cget -chain-position]]} {
+ $t arp_examine
+ }
}
# Let the C code know we are asserting reset.
foreach t [ target names ] {
$t invoke-event reset-assert-pre
# C code needs to know if we expect to 'halt'
- $t arp_reset assert $halt
+ if {[jtag tapisenabled [$t cget -chain-position]]} {
+ $t arp_reset assert $halt
+ }
$t invoke-event reset-assert-post
}
foreach t [ target names ] {
$t invoke-event reset-deassert-pre
# Again, de-assert code needs to know..
- $t arp_reset deassert $halt
+ if {[jtag tapisenabled [$t cget -chain-position]]} {
+ $t arp_reset deassert $halt
+ }
$t invoke-event reset-deassert-post
}
# Pass 1 - Now try to halt.
if { $halt } {
foreach t [target names] {
-
+ if {[jtag tapisenabled [$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
#Pass 2 - if needed "init"
if { 0 == [string compare init $MODE] } {
foreach t [target names] {
+ if {[jtag tapisenabled [$t cget -chain-position]] == 0} {
+ continue
+ }
+
set err [catch "$t arp_waitstate halted 5000"]
# Did it halt?
if { $err == 0 } {