This abstracts the "jtag arp_init-reset" call into a method
called from OpenOCD startup and reset processing.

Platforms which have different requirements for how such hard
resets must be performed can now override "init_reset" instead
of needing to rebuild custom hacked versions of the server.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

Observed:

  openocd: core.c:318: jtag_checks: Assertion `jtag_trst == 0' failed.

The issue was that nothing disabled background polling during calls
from the TCL shell to "jtag_reset 1 1".  Fix by moving the existing
poll-disable mechanism to the JTAG layer where it belongs, and then
augmenting it to always pay attention to TRST and SRST.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

Among other things this causes startup errors to kick in the
fallback "reset harder" logic during server startup.  Comments
are also updated a bit, explaining what the various error paths
signify (in at least my observation).

There's one class of validation error that we can still plausibly
ignore:  when wrong IDCODE values are observed.

This change seems to have helped make an OMAP5912 behave much
more reliably.  There's still some post-reset flakiness, but
it's unrelated to scan verification.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

Also, talk about "mainline" not "trunk".

The release.txt and release.sh files need more updates.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2825 b42882b7-edfa-0310-969c-e2dbd0fdcd60

At least some FT2232 based adapters don't necessarily come up
in the expected state, with SRST and TRST disabled.  Since
other adapters could suffer the same problem, let's avoid
needing to patch every driver and just force *all* adapters
to initialize those values properly at server startup.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2824 b42882b7-edfa-0310-969c-e2dbd0fdcd60

Instead of just assuming all IDCODE-deprived TAPs violate the
JTAG spec (they don't!), just require TAPs with such problems
to be declared with proper ircapture/irmask values.  Example,
with mask and value of zero.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2823 b42882b7-edfa-0310-969c-e2dbd0fdcd60

Have DEBUG_JTAG_IO() always trigger necessary warnings.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2822 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2821 b42882b7-edfa-0310-969c-e2dbd0fdcd60

 - revert to previous default: don't talk JTAG during SRST
 - add "srst_nogates" flag, the converse of "srst_gates_jtag"
 - with no args, display the current configuration

And update the User's Guide text with bullet lists to be a bit more clear.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2818 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2815 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2814 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2813 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2812 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2810 b42882b7-edfa-0310-969c-e2dbd0fdcd60

 - The guess-rev.sh script is now a tweaked version of "setlocalversion" as
   seen in Linux, U-Boot, and various other projects.  When it finds source
   control support (git, hg, svn) it uses IDs from there.  Else (specific
   to this project) it reports itself as "-snapshot", e.g. from gitweb.

   I verified this new "guess-rev.sh" script runs under Cygwin.

 - Also update the generic version strings to be like "0.3.0-dev" (during
   development) instead of the very long "0.3.0-in-development".  These also
   show up in the PDF docs.  For better tracking, we might eventually change
   these strings to include the version IDs too.

 - Change the startup banner version strings so they include the guess-rev
   output.  Development and release versions with GIT will be like

    Open On-Chip Debugger 0.3.0-dev-00282-g7191a4f-dirty (2009-10-05-20:57) 
    Open On-Chip Debugger 0.3.0 (2009-10-05-20:57) 

   instead of the previous SVN-specific (even when using git-svn!)

    Open On-Chip Debugger 0.3.0-in-development (2009-10-05-01:39) svn:exported
    Open On-Chip Debugger 0.3.0 (2009-10-05-01:39) Release



git-svn-id: svn://svn.berlios.de/openocd/trunk@2809 b42882b7-edfa-0310-969c-e2dbd0fdcd60

From: Nicolas Pitre <nico@fluxnic.net>


git-svn-id: svn://svn.berlios.de/openocd/trunk@2807 b42882b7-edfa-0310-969c-e2dbd0fdcd60

Introduced jtag_init and "jtag arp_init" to allow target scripts more control over how OpenOCD starts up and initializes the target.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2805 b42882b7-edfa-0310-969c-e2dbd0fdcd60

Bugfix the error message so it shows the disliked value, and add
a debug message showing each TAP's IR capture value, all N bits.

This just changes diagnostics ... it still ignores the parameters
given to us at TAP declaration time.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2801 b42882b7-edfa-0310-969c-e2dbd0fdcd60

The model is that this fires after scanchain verification, when it's
safe to call "jtag tapenable $TAPNAME".  So it will fire as part of
non-error paths of "init" and "reset" command processing.  However it
will *NOT* trigger during "jtag_reset" processing, which skips all
scan chain verification, or after verification errors.

ALSO:
 - switch DaVinci chips to use this new mechanism
 - log TAP activation/deactivation, since their IDCODEs aren't verified
 - unify "enum jtag_event" scripted event notifications
 - remove duplicative JTAG_TAP_EVENT_POST_RESET


git-svn-id: svn://svn.berlios.de/openocd/trunk@2800 b42882b7-edfa-0310-969c-e2dbd0fdcd60

 - don't needlessly export this function
 - handle "case 0" debug method-of-entry better (silent by default)

The "case 0" is a valid debug entry mode so it doesn't deserve the
warning int now gets.  But it probably means that OpenOCD confused
itself somehow; or that it confused the ARM9EJS target.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2799 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2795 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2794 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2793 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2792 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2791 b42882b7-edfa-0310-969c-e2dbd0fdcd60

 - ETB
    * report _actual_ hardware status, not just expected status
    * add a missing diagnostic on a potential ETB setup error
    * prefix any diagnostics with "ETB"
 - ETM
    * make "etm status" show ETM hardware status too, instead of
      just traceport status (which previously was fake, sigh)
 - Docs
    * flesh out "etm tracemode" docs a bit
    * clarify "etm status" ... previously it was traceport status
    * explain "etm trigger_percent" as a *traceport* option

ETM+ETB tracing still isn't behaving, but now I can see that part of 
the reason is that the ETB turns itself off almost immediately after
being enabled, and before collecting any data.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2790 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2789 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2780 b42882b7-edfa-0310-969c-e2dbd0fdcd60

 - Don't issue needless JTAG resets ... only do them after
   errors. Normal exit now leaves every TAP in BYPASS.
   
 - Fix an unlikely memory leak on one fault path.

 - Remove the oddball limitation that invalid capture LSBs 
   trigger errors only for TAPs that support IDCODE.

Re the JTAG reset:  there are too many of them, and they can
(and do!) change system state.  So the needless ones should
get removed.  This one was especially pointless.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2777 b42882b7-edfa-0310-969c-e2dbd0fdcd60

 - Commands were supposed to have been "arm11 memwrite ..."
   not "memwrite ..."
 - Get rid of obfuscatory macros
 - Re-alphabetize
 - Add docs for "arm11 vcr"


git-svn-id: svn://svn.berlios.de/openocd/trunk@2776 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2775 b42882b7-edfa-0310-969c-e2dbd0fdcd60

The Win32 global namespace is rather cluttered...


git-svn-id: svn://svn.berlios.de/openocd/trunk@2773 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2772 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2771 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2770 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2769 b42882b7-edfa-0310-969c-e2dbd0fdcd60

git-svn-id: svn://svn.berlios.de/openocd/trunk@2768 b42882b7-edfa-0310-969c-e2dbd0fdcd60