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ssh://dbrownell@openocd.git.sourceforge.net/gitroot/openocd/openocd
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This is the very basic board config for the balloon3 board cpu JTAG
channel.
The rest of the config comprises another 14 .cfg files which I suspect
openocd doesn't really want all of. I'm still not sure how to deal
with this. I'll post another mail/patch to discuss.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Ignore leading '0' characters on hex strings. For example a bit
pattern consisting of 6 bits could be written as 3f, 03f or 003f and
so on.
Signed-off-by: Michael Roth <mroth@nessie.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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This patch adds basic autoprobing support for the JTAG scan chains
which cooperate. To use, you can invoke OpenOCD with just:
- interface spec: "-f interface/...cfg"
- possibly with "-c 'reset_config ...'" for SRST/TRST
- possibly with "-c 'jtag_khz ...'" for the JTAG clock
Then set up config files matching the reported TAPs. It doesn't
declare targets ... just TAPs. So facilities above the JTAG and
SVF/XSVF levels won't be available without a real config; this is
almost purely a way to generate diagnostics.
Autoprobe was successful with most boards I tested, except ones
incorporating C55x DSPs (which don't cooperate with this scheme
for IR length autodetection). Here's what one multi-TAP chip
reported, with the "Warn:" prefixes removed:
clock speed 500 kHz
There are no enabled taps. AUTO PROBING MIGHT NOT WORK!!
AUTO auto0.tap - use "jtag newtap auto0 tap -expected-id 0x2b900f0f ..."
AUTO auto1.tap - use "jtag newtap auto1 tap -expected-id 0x07926001 ..."
AUTO auto2.tap - use "jtag newtap auto2 tap -expected-id 0x0b73b02f ..."
AUTO auto0.tap - use "... -irlen 4"
AUTO auto1.tap - use "... -irlen 4"
AUTO auto2.tap - use "... -irlen 6"
no gdb ports allocated as no target has been specified
The patch tweaks IR setup a bit, so we can represent TAPs with
undeclared IR length.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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And update doc accordingly. That EmbeddedICE register was
introduced for ARM9TDMI and then carried forward into most
new chips that use EmbeddedICE.
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Stop allocating three bytes per IR bit, and cope somewhat better
with IR lengths over 32 bits.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Remove needless debug handler state.
- "handler_installed" became wrong as soon as the second TRST+SRST
reset was issued ... so the handler was never reloaded after the
reset removed it from the mini-icache.
This fixes the bug where subsequent resets fail on PXA255 (if the
first one even worked, which is uncommon). Other XScale chips
would have problems too; PXA270 seems to have, IXP425 maybe not.
- "handler_running" was never tested; it's pointless.
Plus a related bugfix: invalidate OpenOCD's ARM register cache on reset.
It was no more valid than the XScale's mini-icache. (Though ... such
invalidations might be better done in "SRST asserted" callbacks.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Bit 5 shouldn't be used. Remove all support for modifying it.
Matches the exception vector table, of course ... more than one
bootloader uses that non-vector to help distinguish valid boot
images from random garbage in flash.
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commands added.
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Some cosmetic cleanup, and switch to a single table mapping
between state names and symbols (vs two routines which only
share that state with difficulty).
Get rid of TAP_NUM_STATES, and some related knowledge about
how TAP numbers are assigned. Later on, this will help us
get rid of more such hardwired knowlege.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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- Use the name mappings all the other code uses:
+ name-to-state ... needed to add one special case
+ state-to-name
- Improve various diagnostics:
+ don't complain about a "valid" state when the issue
is actually that it must be "stable"
+ say which command was affected
- Misc:
+ make more private data and code be static
+ use public DIM() not private dimof()
+ shorten the affected lines
Re the mappings, this means we're more generous in inputs we
accept, since case won't matter. Also our output diagnostics
will be a smidgeon more informative, saying "RUN/IDLE" not
just "IDLE" (emphasizing that there can be side effects).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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The wrong variable (pc instead of r0) was used. Furthermore, someone
did cover this error by stupidly silencing the compiler warning that
occurred before a dummy void reference to r0 was added to the code.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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When dumping over 100 registers (as on most ARM9 + ETM cores),
aid readability by splitting them into logical groups.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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The register names are perversely not documented as zero-indexed,
so rename them to match that convention. Also switch to lowercase
suffixes and infix numbering, matching ETB and EmbeddedICE usage.
Update docs to be a bit more accurate, especially regarding what
the "trigger" event can cause; and to split the issues into a few
more paragraphs, for clarity.
Make "configure" helptext point out that "oocd_trace" is prototype
hardware, not anything "real".
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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documentation.
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commands and target read/write physical memory callbacks.
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support phys flag to specify bypassing of MMU.
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ssh://gowinex@openocd.git.sourceforge.net/gitroot/openocd/openocd into HEAD
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This is done in a polymorphic implementation in target.c
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This is done in a polymorphic implementation in target.c
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for read only ram(e.g. MMU write protected.
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XSVF improvements:
- Layer parts of XSVF directly over SVF, calling svf_add_statemove()
instead of expecting jtag_add_statemove() to conform to the SVF/XSVF
requirements (which it doesn't).
This should improve XSTATE handling a lot; it removes most users of
jtag_add_statemove(), and the comments about how it should really do
what svf_add_statemove() does.
- Update XSTATE logic to be a closer match to the XSVF spec. The main
open issue here is (still) that this implementation doesn't know how
to build and submit paths from single-state transitions ... but now
it will report that error case.
- Update the User's Guide to mention the two utility scripts for
working with XSVF, and to mention the five extension opcodes.
Handling of state transition paths is, overall, still a mess. I think
they should all be specified as paths not unlike SVF uses, and compiled
to the bitstrings later ... so that we can actually make sense of the
paths. (And see the extra clocks, detours through RUN, etc.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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TCP/IP client/server scheme.
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Don't add extra TCK in current state; exit from RESET had four extras.
Only IDLE --> IDLE needs such an extra clock. (At least one TCK must
be issued.)
Allow entry to RESET; SVF allows it, so must we (despite those entries
being commented out of the statemove table).
When entering RESET, always use TLR ... we might end up with extra clocks
in reset that way, which is harmless, but we'll never end up in any other
state than RESET, which is useful paranoia.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Lightly tested on dm365.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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As decided a while back, this isn't a transition we want to chance.
Whenever someone wants to got to RESET, force it.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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SVF: comment the predefined/default paths; make them static const
SVF, XSVF: whitespace fixes, mostly so copyrights display sanely
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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This is unfortunately needed to make stdio work like OpenOCD expects -- matching
the ANSI-C standard, instead of MS-Windows.
I tested it in both MinGW-W64 on Vista 64 and MinGW-W32 on XP, and I don't
see any adverse effects to enabling it for all MinGW versions.
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After reading a bit further, it appears that ws2_32 (Windows Sockets 2)
is included in all versions of Windows and backwards compatible with
wsock32, at least according to
http://msdn.microsoft.com/en-us/library/ms740673%28VS.85%29.aspx.
Only Win95 seems to require a manual installation; is not a big deal.
So I think we can drop this whole business of detecting 64 bit MinGW and
just use -lws2_32 for all MinGW platforms.
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Same requirement as like init_reset, and for the same reason:
we need to start with a known and working state.
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Without this fix, the following code cannot be single stepped:
add ip, pc, #1
bx ip
[thumb code here]
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