The prefixed commands has been removed in commit 0840414f0e
("helper/command: do not replace new commands with ocd_ prefix").
Change-Id: I9f101beb85533973041386896bbb215bb141962f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5191
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
The prefix is not necessary anymore.
Change-Id: Ie0df06a70ff51e6719d7564396739d28618b0196
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/5190
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
armv7m_get_core_reg() calls arm->read_core_reg()
arm->read_core_reg() expects the register number as an index
to core reglist, not an ARMv7M specific register code.
Use reg->number instead of armv7m_reg->num.
The change solves assert
src/target/armv7m.c:222: armv7m_read_core_reg: Assertion
`num < (int)armv7m->arm.core_cache->num_regs' failed.
when gdb 'info reg' is issued on a Cortex-M target and
no cortex_m_debug_entry() has been called since OpenOCD start
(target was halted before OpenOCD start).
Change-Id: I32a2294693ef979b613be93aeceb3b0eb06ee6df
Ticket: https://sourceforge.net/p/openocd/tickets/216/
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/5203
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
For legacy support, drivers that do not define a list of
transports get identified as jtag_only.
Cleanup this old crust and initialize properly the transports
field in the jtag_interface for all the drivers.
Change-Id: I9c86064e5d05bd0212bc18f4424414e615e617fe
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4893
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
In the initial commit 6c9b804d61
in 2007's svn://svn.berlios.de/openocd/trunk@246
a target script gdb_program_config was called before gdb flash
programming. To guarantee the script does not left any pending
command in the jtag queue, a call to jtag_execute_queue() was
inserted after the execution of the script.
In following commit ef1cfb2394
in 2008's svn://svn.berlios.de/openocd/trunk@975
the script was replaced by the event "old-gdb_program_config" and
the call to jtag_execute_queue() get executed in every case, even
if the event handler was not present.
At last, commit bb3793c9a4
("target: remove legacy target events") stripped away the
obsolete event but left the call to jtag_execute_queue(), now
completely useless.
Remove the call to jtag_execute_queue() and clean-up the code
around it.
Change-Id: I284f54d656d431ad6cdc25ca18218c09db31bd25
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4911
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Since the first commit 09883194f8 that introduced cortex_m, the
code has a delay of 50ms after srst has been asserted.
The specific delay is implemented through the JTAG_SLEEP command
sent in the jtag queue.
To remove the dependency from the jtag queue, replace the delay
with a transport independent function.
In case of jtag transport, this change keeps the same behaviour
only if the jtag queue has been flushed before the delay. This
does not happen if the call to dap_dp_init(), few lines above,
fails while calling a dap_queue_dp_{read,write}(); in this case
the jtag queue will be flushed later, after the delay, while in
the original code the delay would follow the flushing of the
commands already queued. Anyway, this different behavior would
only happen in case of DAP already not responsive so anticipating
the delay in such error condition is not supposed to add further
problems.
Change-Id: If15978246764e4266b10e707d86c03e5ed907de7
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4912
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
There is just a single entry point for the jtag API .khz(),
.speed_div(), .power_dropout(), .srst_asserted().
Simplify the code by in-lining the default handler.
The overall code behaviour is not changed.
This change prevents modifying at run-time the content of
struct jtag_interface.
Inspired from change http://openocd.zylin.com/943
by Evan Hunter <ehunter@broadcom.com>
Change-Id: I09aeb76d614db57b1884ac7ee9f00c152cd77849
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4892
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
The specific SWD API to change/query the adapter speed is never
called because the equivalent JTAG API is used in place of it.
In the restructure of struct jtag_interface, the JTAG API is
promoted as global adapter API, thus a specific SWD one is not
anymore required.
Change-Id: I1e810d255b4dfcd5791b4fac8ae1260c31a057fd
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4891
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Currently size of the GDB buffer is 16384 bytes but it is treated as
nul-terminated string in most of the code, so effective size of the
buffer is actually 16383 bytes. OpenOCD responds with `PacketSize=3fff`
to qSupported request. Result of GDB's `m` command is encoded in hex so
each data byte uses two bytes in the buffer. As a result GDB will split
bulk read requests into chunks 0x1fff bytes each. This causes troubles
on targets (or memory regions) which support only aligned, word-sized
access (such as MMIO buffers).
Steps to reproduce (psoc6 target):
gdb> dump binary memory dump.bin 0x040320000 (0x040320000 + 65536)
OpenOCD:
Error: Failed to read memory at 0x40321ffe
Error: Failed to read memory at 0x40321000
Error: Failed to read memory at 0x40323000
Error: Failed to read memory at 0x40325ffe
Error: Failed to read memory at 0x40329ffa
Error: Failed to read memory at 0x40329ffc
Error: Failed to read memory at 0x4032bffc
Error: Failed to read memory at 0x4032dffa
Consolidate GDB_BUFFER_SIZE usage: ensure size of each buffer is
(GDB_BUFFER_SIZE + 1), add explicit comment that additional byte is used
for nul-termination. Report correct size of the buffer to GDB (0x4000)
as recommended in GDB's docummentation: `if the stub stores packets in a
NUL-terminated format, it should allow an extra byte in its buffer for
the NUL`
Checked with clang-asan, clang-analyzer, valgrind - no new errors.
Change-Id: I909e8a2c6b010c5d4a304641808d4a807a4ec18d
Signed-off-by: Bohdan Tymkiv <bhdt@cypress.com>
Reviewed-on: http://openocd.zylin.com/5109
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
The warning appears for every possible device during enumeration
and provides no useful information for an end-user.
Change-Id: I56e7889a5d9d4656de13ad9e21be3a6e1906e05f
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/5155
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
The implementation-defined bits have different semantics for each bus
and different recommended defaults.
Change-Id: I562fe24643bb1f3abc696339e382a75ccf2f2873
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-on: http://openocd.zylin.com/5124
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Remove a copy of handle_md_output() from src/target/dsp563xx.c
Change-Id: Iadd003fd1dcdbc7990d46a58ee2e7c30826ac6af
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/5175
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
s/additonal/additional/
s/seperately/separately/
Use uppercase after a '.'
Change-Id: I933894ae44924363d634fa07d3de4ceeb4b329e2
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5162
Tested-by: jenkins
Reviewed-by: Jonathan McDowell <noodles-openocd@earth.li>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
By definition the EXTERNAL bit in Debug Fault Status Register indicates
that an external debug request (EDBGRQ) signal was asserted.
Usage example: this could be done by CTI in multicore devices in order to
halt all the cores together.
Change-Id: I7830455ce5da6702b7d08c8fa7bfe80e4d8a5055
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: http://openocd.zylin.com/5157
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Commit 89fa493a3b removes the top
level command "unknown" and adds in command_unknown() some unclear
code that should detect a user-implemented "unknown" command.
But, all the commands that trigger the execution of the function
command_unknown() are registered in register_command_handler() and
have the command name prefixed with "ocd_".
Due to such "ocd_" prefix in cmd_name, the condition
if (strcmp(cmd_name, "unknown") == 0) { ... }
is always false.
Nobody complained for almost 10 years so we can proceed to remove
this dead code, before merging any change that obsoletes the
prefix "ocd_" and potentially makes the condition true.
Remove the dead code guarded by the condition above.
Change-Id: Icf11a956bb2d68fc84e6eb5779edf8e35db8fa53
Fixes: 89fa493a3b ("remove unknown handler")
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5096
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Left unused after commit "target: unify memory read/write
commands", can be removed.
Change-Id: Iea6ef9204c8071283a66a679b3d6edbb0c929c5c
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5153
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
The documentation added for commit b3d29cb544
was merged after the end of the eSi-RISC section rather than AARCH64.
This patch relocates this hunk to the correct location.
Change-Id: I46a2d24442556e9e8000b46a5e1af03b83de6d98
Signed-off-by: Steven Stallion <stallion@squareup.com>
Reviewed-on: http://openocd.zylin.com/5181
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
The V3M SoC is R8A77970 while the V3H SoC is R8A77980 . Update the
CHIPNAME and swap the SoCs to keep the list sorted.
Change-Id: I7e1777c0c7181e5e0beac98333f2047cb443d0df
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Reviewed-on: http://openocd.zylin.com/5140
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Add configuration for the Renesas RZ/A1H target.
This is an SoC with one Cortex A9 ARMv7a core and
up to 10 MiB of on-SoC SRAM.
Change-Id: I20fd54b385fe1ba1cc325451c3fdfa3a835d4884
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Reviewed-on: http://openocd.zylin.com/5141
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Add configuration for the Renesas RZ/A1H GR-Peach board,
which is a cheap development kit for the RZ/A1H SoC.
Change-Id: I7f5596ae47e6dff8e6d06cffd4dddca20f57d0ca
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Reviewed-on: http://openocd.zylin.com/5142
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
In case of error, a command should use command_print() to report
the error message, so it get printed only on the session that run
the command itself, and the message can be intercepted with the
tcl command catch if it has to be handled differently.
Current code drops the command output when the command returns
error, claiming that it's the command that *should* have printed
it already. This is true only if we *abuse* of the LOG functions,
but accepting the side issue of having the LOG printed in every
session and being unable to catch{} the error message.
Since we have switched to command_print(), change the code to
propagate the command output also in case of error.
Change-Id: I95de424a65e63702bdb3b2277749a0ac6aaaa503
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5178
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Two calls to command_print() in imx_gpio fixed - the first parameter
adjusted (CMD_CTX -> CMD) per the changes from this commit:
6cb5ba6f11
Change-Id: I6cb0909439a632d3109edfc68070b9b561f86d49
Signed-off-by: Jan Matyas <matyas@codasip.com>
Reviewed-on: http://openocd.zylin.com/5176
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
The commit 84ca4995ad ("drivers/bcm2835gpio: fix usage messages")
has been merged before commit 6cb5ba6f11 ("helper/command: change
prototype of command_print/command_print_sameline") introducing two
new call to command_print() that were not modified by the second
commit.
This triggers a compile error on ARM host.
Fix the incorrect function call.
Change-Id: I2736bae24141685b7590fd6b4aa5e6a29b2cab29
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5174
Tested-by: jenkins
In jtag_vpi_stableclocks() the TMS line needs to be set properly
based on the current JTAG TAP state (TMS=1 in TAP_RESET state vs.
TMS=0 in other cases).
Change-Id: Id49622ba83015f97b61b6a896edde4448f1fbdc6
Signed-off-by: Jan Matyas <matyas@codasip.com>
Reviewed-on: http://openocd.zylin.com/5151
Tested-by: jenkins
Reviewed-by: Franck Jullien <franck.jullien@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Prevent the State Machine from moving at the end
of several cycles during run_test_idle
state.
Change-Id: Iabdf90a58334dd3d0e6e34b02983a85662062825
Signed-off-by: Megan Wachs <megan@sifive.com>
Reviewed-on: http://openocd.zylin.com/3635
Tested-by: jenkins
Reviewed-by: Jan Matyas <matyas@codasip.com>
Reviewed-by: Franck Jullien <franck.jullien@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
The commit "helper/command: do not replace new commands with
ocd_ prefix" breaks the print of usage text when a multi-word
command is typed incompletely.
Fix it by explicitly running the "usage" command.
Change-Id: I46f8e521d9b6ac617bff8938cf8fc96f0ade45c8
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5166
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
When opening multiple telnet connections, the command output on
one console is broadcast to all the other console.
Send the command output only to the output handler that has been
set for that context.
For the moment, still broadcast the errors.
Note that contexts which doesn't explicitly set the output handler
(e.g. gdb_server), will inherit the global output handler
configuration_output_handler() that will broadcast the output.
Change-Id: I1f2d6e6a3bbf730f5fa77246730fce1445742a1e
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5093
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Part of the output is generated with log functions.
Change prototype of find_target() and use command_print() for all
the output of the command.
Change-Id: Ia9fdb653fd5b27be427381053a037545faa34414
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5092
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
The commands prefixed with "ocd_" are removed.
Remove them from configuration files.
Change-Id: Ib44627ee17a39f3d06b479507ab5a025073bf9a8
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5090
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
The commands prefixed with "ocd_" are removed.
No need to review the documentation.
Change-Id: Idad95e62f6c8574ff8b61930aeef04e9727fae8a
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5089
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
The commands prefixed with "ocd_" are removed.
Remove any reference in the documentation.
Change-Id: I27cebaa4752752ec8700757bf1c98b267c24f15b
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5088
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
We do not register commands with special "ocd_" prefix anymore.
Change-Id: I588816eb22c2435a97be5fbfa87ee5584274b02f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5087
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Once the wrapper "ocd_bouncer" is removed (which was the only user
of this command), there is no reason to keep the command any
longer.
Remove it.
This change was part of http://openocd.zylin.com/1815 from Paul
Fertser and has been extracted and rebased to simplify the review.
Change-Id: I979ce1c147babedb44dd77418751133f589f827c
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5084
Tested-by: jenkins
The TCL return values are now consistent, no need anymore for the
hack of registering the commands with "ocd_" prefix and override
them with proc ocd_bouncer.
Clean-up the command registration and remove the proc ocd_bouncer.
This change was part of http://openocd.zylin.com/1815 from Paul
Fertser and has been extracted and rebased to simplify the review.
Change-Id: I2a467e73ecb068686ea3fda91bf961aba6db6427
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5086
Tested-by: jenkins
Command's output should be put in JimTcl result.
We should not anymore capture the log output and pack it as a
JimTcl result.
Remove the log capture feature in script_command_run().
This change was part of http://openocd.zylin.com/1815 from Paul
Fertser and has been extracted and rebased to simplify the review.
Change-Id: Id326c8719e1cee9156d7fc15ae8355ec79a74951
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5085
Tested-by: jenkins
Rationale:
1. There's logging output and there're return values;
2. If a function should return something, it should do it explicitly,
same for logging;
3. Interactive interfaces (telnet, Gdb and Tcl RPC) must always return
the result of the evaluation for the given expression. You can
suppress this output by adding ``; after 0'' to the end of your
expression.
4. Some commands "throw an exception" and if you want to be able to
collect both the return value (when it succeeds) and the log output
(when something goes wrong) you can use do like this:
set log_output [capture "catch {reset_config} return_value"]
So what I'm proposing is following:
1. Every jim_handler command should set the return value the standard
JimTcl way, without any tricks. If it needs to print some logging
output, it should use LOG_* functions.
2. The usual commands (COMMANDS) can easily construct their return
value by appending strings with command_print() and
command_print_sameline(). This required changing "struct
command_invocation" and passing a pointer to it to command_print*
functions.
The code is already functional, please test and comment.
TODO items:
1. Modify all jim_handler commands to properly return or log values
(some of them are commented out for now in this patch).
2. Properly document "capture" command and provide a convenience
function to automate log_output + return_value gathering.
3. Add appropriate Doxygen comments.
4. Add Tcl RPC interface description to the manual, all the example
clients in different languages (from the mailing list) to contrib/.
This change is the core part of http://openocd.zylin.com/1815 from
Paul Fertser. It has been extracted and rebased to simplify the
review and provided again as 1815.
Change-Id: I675c91aa9da1e4e7c6f0a8fe6112a00550b9e4db
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/1815
Tested-by: jenkins
The command uses LOG_USER() instead of command_print().
Fix it.
This change was part of http://openocd.zylin.com/1815 from Paul
Fertser and has been extracted and rebased to simplify the review.
Change-Id: I92e5e5954a75b96093b3ed6af73a7536c063b639
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5083
Tested-by: jenkins
After replace CMD_CTX with CMD, the indentation is incorrect.
Fix it.
This change was part of http://openocd.zylin.com/1815 from Paul
Fertser and has been extracted and rebased to simplify the review.
Change-Id: I5d7c40227ceda2e9db8dab88088d74012d2254c4
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5082
Tested-by: jenkins
To prepare for handling TCL return values consistently, all calls
to command_print/command_print_sameline should switch to CMD as
first parameter.
Change prototype of command_print() and command_print_sameline()
to pass CMD instead of CMD_CTX.
Since the first parameter is currently not used, the change can be
done though scripts without manual coding.
This patch is created using the command:
sed -i PATTERN $(find src/ doc/ -type f)
with all the following patters:
's/\(command_print(cmd\)->ctx,/\1,/'
's/\(command_print(CMD\)_CTX,/\1,/'
's/\(command_print(struct command_\)context \*context,/\1invocation *cmd,/'
's/\(command_print_sameline(cmd\)->ctx,/\1,/'
's/\(command_print_sameline(CMD\)_CTX,/\1,/'
's/\(command_print_sameline(struct command_\)context \*context,/\1invocation *cmd,/'
This change is inspired by http://openocd.zylin.com/1815 from Paul
Fertser but is now done through scripting.
Change-Id: I3386d8f96cdc477e7a2308dd18269de3bed04385
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/5081
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
To prepare for handling TCL return values consistently, all calls
to command_print/command_print_sameline should be ready to switch
to CMD as first parameter.
Change prototype of show_config*() functions to pass CMD instead
of CMD_CTX.
This change was part of http://openocd.zylin.com/1815 from Paul
Fertser and has been extracted and rebased to simplify the review.
Change-Id: I131a904774bf60ad1bf9d90dbc65927c246ac23a
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5080
Tested-by: jenkins