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Start handling the (second) SRST stage of reset better:

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make sure that when there are two or more targets, their
various pre/post event reports are correctly ordered.

Previously, only the first target always saw its "pre"
method before SRST was asserted or deasserted.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2753 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
dbrownell 2009-09-23 22:03:41 +00:00
parent 22045fa6f2
commit 23e22b6ec4
1 changed files with 11 additions and 6 deletions
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17
src/helper/startup.tcl
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@ -202,27 +202,32 @@ proc ocd_process_reset_inner { MODE } {
}
# Assert SRST, and report the pre/post events.
#
# REVISIT this presumes a single-target config, since SRST
# applies to the whole device-under-test. When two targets
# both need special setup before SRST, it's only done for
# the first one...
# 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
# Again, de-assert code needs to know..
}
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
}