Clean up the working area in case writing fails.
Adapted from armv7m_checksum_memory().
Change-Id: I4e5950f568ed70a72a1dcfd77e3321110b17e1de
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3469
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Spotted by gcc:
arm7_9_common.c: In function ‘arm7_9_unset_breakpoint’:
arm7_9_common.c:353:4: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
if (current_instr == arm7_9->thumb_bkpt)
^~
arm7_9_common.c:356:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’
if (retval != ERROR_OK)
^~
The logic won't change once the braces have been added, as the new 'retval'
check only makes sense within the if().
Change-Id: I6a303e118f2150e5eb25c9268ad06de5d8a533b2
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Reviewed-on: http://openocd.zylin.com/3477
Tested-by: jenkins
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
The cortex_a specific assert_reset function must only apply nSRST if
the reset configuration states that JTAG can be used while nSRST is
asserted.
Change-Id: If604a65fdea5bcb46ec723ada547a4e8d6fa8c59
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3356
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
I suppose 0xff300008 is the correct value for EJTAG_V20_DBS.
20 miliseconds is too much for scan delay, 2ms is enough in mips_m4k scan_delay handler.
mips32 scan_delay has the correct value.
Change-Id: Ie9dc650065a58e845687058a4c930f85909beec9
Signed-off-by: Salvador Arroyo <sarroyofdez@yahoo.es>
Reviewed-on: http://openocd.zylin.com/2271
Tested-by: jenkins
Reviewed-by: Kent Brinkley <jkbrinkley.imgtec@gmail.com>
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
BMIPS always needs 2 additional instructions to reach the core.
Seems there is a 2 instructions fifo between the tap and the core, or it behaves in this way.
No idea of the purpose of this fifo, I can only guess.
Of course function mips32_pracc_clean_text_jump() must add this additional instructions (NOPs).
Only tested on bcm3348..
Change-Id: I3183d3ce865d469d7262ba4b15446e5743a5f1df
Signed-off-by: Salvador Arroyo <salvador@telecable.es>
Reviewed-on: http://openocd.zylin.com/2270
Tested-by: jenkins
Reviewed-by: Kent Brinkley <jkbrinkley.imgtec@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Before this change jim_target_reset() checked examined state of a target
and failed without calling .assert_reset in particular target layer
(and without comprehensible warning to user).
Cortex-M target (which refuses access to DP under active SRST):
If connection is lost then reset process fails before asserting SRST
and connection with MCU is not restored.
This resulted in:
1) A lot of Cortex-M MCUs required use of reset button or cycling power
after firmware blocked SWD access somehow (sleep, misconfigured clock etc).
If firmware blocks SWD access early during initialization, a MCU could
become completely inaccessible by SWD.
2) If OpenOCD is (re)started and a MCU is in a broken state unresponsive
to SWD, reset command does not work even if it could help to restore communication.
Hopefully this scenario is not possible under full JTAG.
jim_target_reset() in target.c now does not check examined state
and delegates this task to a particular target. All targets have been checked
and xx_assert_reset() (or xx_deassert_reset()) procedures were changed
to check examined state if needed. Targets except arm11, cortex_a and cortex_m
just fail if target is not examined although it may be possible to use
at least hw reset. Left as TODO for developers familiar with these targets.
cortex_m_assert_reset(): memory access errors are stored
instead of immediate returning them to a higher level.
Errors from less important reads/writes are ignored.
Requested reset always leads to a configured action.
arm11_assert_reset() just asserts hw reset in case of not examined target.
cortex_a_assert_reset() works as usual in case of not examined target.
Change-Id: I84fa869f4f58e2fa83b6ea75de84440d9dc3d929
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/2606
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This feature is required for boards that use a programmatical way
to reset the cpu, like the TI Pandaboard with OMAP4. The board only
has a 14 pin JTAG header that doesn't feature SRST and is reset by
direct write to the PRM_RSTCTL register.
iMX6 can be reset through triggering the on-chip watchdog, but for these
methods to work reliably, access through the AHB-AP without interaction
with the CPU core is necessary.
Change-Id: I9a07a536adda83cc2f93e504384c8c7f0306220b
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3359
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
On the ARM PB1176JZF-S the system comes up in secure monitor
mode after reset. However the modebits in CPSR form the value
28 (0x1c) and CPSR is 0x800001dc deeming it UNRECOGNIZED.
Define this mode to be synonymous to mode 22 (MON) and things
start to work like a charm.
Change-Id: I001f7773ee1076202c0c633e466d2d833f7a1413
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-on: http://openocd.zylin.com/3196
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Instead of documenting the file path as a comment and inline-commenting
the THUMB bytecode, include the hex array via preprocessor.
This assures the path is actually up-to-date and facilitates updating
the code.
Change-Id: Ieb0a7cd0bc14882ac96750f524616d9768a0c6f5
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3134
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
A copy-and-paste error in the arm_disassembler opcode evaluation
disabled the recognition of MRRC instructions.
According to the arm architecture ref. manual issue E or later, MRRC and MCRR
instructions are identified by opcode bits 20-27: MCRR = 0xc4, MRRC = 0xc5.
Error found by static code analysis using a semantic pattern to
detect duplicated tests xand.cocci, see coccinellery.org
Change-Id: Ic41426edb51c6816e11dc3d35ef9382ab34af486
Signed-off-by: Alexander Kurz <akurz@blala.de>
Reviewed-on: http://openocd.zylin.com/3363
Reviewed-by: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Obsolete C source code semicolons were removed using the semantic patch
semicolon/semicolon.cocci, see coccinellery.org
Change-Id: I153b4995a9e028ebaf5f58c947821dc78345a777
Signed-off-by: Alexander Kurz <akurz@blala.de>
Reviewed-on: http://openocd.zylin.com/3367
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Simplify by printing one component per call, instead of one complete ROM
Table per call. Print common information the same way for all components,
including ROM tables, because ROM tables (at least the top level) contain
useful information in their identification registers, such as the
manufacturer of the SoC.
Print component designer name using the JEP106 helper when available.
Change-Id: Ic51bccd98acfae6886243500153fbdd567be2fae
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3182
Tested-by: jenkins
Reviewed-by: Jiri Kastner <cz172638@gmail.com>
Reviewed-by: James Mastros <james@mastros.biz>
The cache is forced to zero to match the value expected by the DPIDR read
so the connect sequence is not destroyed by a SELECT update.
However, DPIDR and in fact all registers except address 4 are independent
of the current DPBANKSEL value. Change swd_queue_dp_bankselect() to use
this fact and avoid touching SELECT for those registers.
Change-Id: I0cd11925fb6adef481bbf45cc24ea2c6dab4b6fb
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3231
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Investigation:
- mem_ap_read_buf_u32() no longer exists.
- JTAG_DP_DPACC & JTAG_DP_APACC are defined in adi_v5_jtag.c now.
Change-Id: I136fc3f389a5a4eb9b68bc759ce653b6da7fa75e
Signed-off-by: Alamy Liu <alamy.liu@gmail.com>
Reviewed-on: http://openocd.zylin.com/3243
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Add support for the Intel Quark mcu D2000 using the new quark_d2xx
target.
Changes to the lakemont part are needed for the D2000 core and
backwards compatible with the X1000 one.
Change-Id: I6e1ef5a5d116344942f08e413965abd3945235fa
Signed-off-by: Ivan De Cesaris <ivan.de.cesaris@intel.com>
Reviewed-on: http://openocd.zylin.com/3199
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Commit 830d0c55c0 introduced
a regression in error recovery after reconnect:
If first SWD queue run in dap_dp_init() fails, DP_SELECT
does not get reset.
Change-Id: I947e2afe9933e4645a6141ece7816af8e6082cf2
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/3194
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
dap_sync() executes all commands in the JTAG queue and then checks
if a WAIT condition happened inside the last batch. If yes, a recovery
is invoked. If not, processing continues without checking for
errors. This function should be called in long AP read or writes, e.g.
while uploading a new application binary, at intermediate points within
the transfer where the cost of flushing the JTAG queue and checking the
journal doesn't affect performance too much.
Change-Id: I99eeaf47cdf951e15e589a04e74b90b5ce911386
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3181
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
ADIv5 specifies that DP and AP accesses may generate a WAIT
response when the hardware is not able to complete a request for various
reasons in time before the next request is sent. Currently, the software
treats a WAIT response as a fatal error and aborts operation on the DAP.
This patch implements WAIT handling by keeping a journal of all
outstanding and completed accesses, including their response status.
At certain times (when dap_run() is called), the journal is inspected
for WAIT responses and all discarded accesses are replayed to complete
them. Special care is taken to not re-execute already successfully
completed operations.
Change-Id: I2790070388cf1ab2e8c9a042d74eb3ef776aa583
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3166
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
BeagleBone debian 7 builds produce:
adi_v5_jtag.c: In function 'jtag_ap_q_bankselect':
adi_v5_jtag.c:336:11: error: declaration of 'select' shadows a global declaration [-Werror=shadow]
Fix this by changing the local variable to 'sel'.
Change-Id: I8e29662ac12bc77d38d5064046d59b7364853cd9
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Reviewed-on: http://openocd.zylin.com/3184
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
The existing arm_adi_v5.c code decodes CoreSight peripherals based
on the part number field. However, these are specific to a
particular manufacturer (often ARM). The same part number from
two different manufacturers (distinct designer ids) should not
decode as the same CoreSight peripheral.
The Analog Devices ADSP-SC58x and ADSP-BF70x have peripherals that
overlap with existing OpenOCD decoding. The part number is the
same as existing OpenOCD decoding, but have a different JEP106 code.
Most, if not all, of the existing part number entries in
arm_adi_v5.c are probably specific to ARM. Change all entries
suspected to be designed by ARM to match only ARM's designer ID.
However, to preserve legacy behavior, existing non-ARM entries are
encoded with a wildcard so that they will behave in the same way as
the existing legacy code. It is desirable, however, to start
encoding the data with designer codes to avoid such ambiguity.
Revising the code to check both the part number and designer id
seemed to a warrant a const array lookup table instead of a
multi-tiered switch statement.
Also try to sync part identification IDs with relevant ARM docs.
Change-Id: Iac1374e4cfc6f04cebb479c0e3fa9bde527cc4a3
Signed-off-by: Peter Lawrence <majbthrd@gmail.com>
[andreas.fritiofson@gmail.com: change JEP106 to designer ID, cleanup]
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3128
Tested-by: jenkins
The HLA target shares an examine handler with cortex_m but since it
lacks direct access to DAP, some operations need to be omitted.
Change-Id: Ifdd9d3da4a3a3c2e1c9721284b21d041b3ccaa7a
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3183
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
work around issues with software breakpoints when the text segment
is mapped read-only by the OS. Set DACR to "all-manager" to bypass
TLB permission checks on memory access.
Change-Id: I79fd9b32b04a4d538d489896470ee30b26b72b30
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3107
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
On JTAG, all reads are pipelined. If you read a register, the result is not
delivered inside the request that issued the read, it is delivered in the
following request. The current code therefore issues a scan of the RDBUFF
register after each read. This adds a superfluous transaction after each
read.
This patch follows a strategy similar to what SWD already implements.
It also leverages that all JTAG reads are pipelined, i.e. the result
will be clocked out in the next JTAG data phase, no matter if it's
READ or WRITE. Therefore it's never necessary to explicitly read RDBUFF
other than for the very last READ before a dap_run().
Change-Id: Ie40b1fef3203f0cdcb503f40dcbd2a68b0f9776c
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3167
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Debug initialization blindly selects AP#0 as default, which is the AHB-AP
in many cases. This sets the default for target_read/write functions.
However, AHB-AP is the wrong choice, because it bypasses caches on read
and write and also makes some peripherals inaccessible (e.g. l2 outer
caches). This patch explicitely selects the APB-AP (debug_ap) as the
default.
Change-Id: I13f9e0750186d35dcfc135c8d67d437c5884d9c4
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3113
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Remove entirely the concept of a "selected" AP that has to be maintained
between calls. All the information the DAP ops need are now provided to
each call through the AP/DAP pointer.
Consolidate the cache of the SELECT fields into one single field caching
the entire register.
Change-Id: I2e1c93ac5ee8ac38a7d680ca2c660c30093a6b87
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3165
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Move the mandatory dap_ap_select() call into the dap_queue_ap_read/write
wrapper.
This avoids the need for dap_ap_select() and the notion of a "current" AP
within target code.
Change-Id: I5cde8f3eef2c662f7458be6f3b3dd44ea693bd74
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3164
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Make dap apsel without arguments show current state instead of changing
to AP 0.
Change-Id: I75ea10e3e1b8a067f2dc417ec6691dc7ceec1af6
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3163
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
All AP operations should select the AP to use before calling it so
there's no point in restoring the previous value afterwards.
The explicit call to dap_ap_select() before all AP operations should be
moved into dap_queue_ap_read/write() which then would have to take the
AP as an argument instead of the DAP.
Change-Id: Icacb0c76ef2a5ac36b4d2f26b52ec01a8850286e
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3156
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
It's currently set during target creation but the AP that will be used
for the target is not even known.
Change-Id: I4502e7eb1fa8d90f746445b8cf8a4c21cb7d519e
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3155
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
The AP for which the TAR/CSW is printed may not be the one that caused
the failure. Remove the flawed output entirely. The correct info is
printed in mem_ap_read/write anyway.
Change-Id: I97580a0662dcf02e80646e45445cdbfc251122d8
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3154
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
All mem_ap_* functions now make sure the SELECT register is updated with
the AP number that it's operating on. This shouldn't have to be handled
explicitly.
Change-Id: Ib193d8930fabb6a25715064355f98258c9580b5d
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3153
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This function does two separate things, powering up the DP and setting
up a MEM-AP. But the DP needs to be powered before even searching for a
MEM-AP to initialize and targets may have multiple MEM-APs that need
initializing.
Split the function into dap_dp_init() and mem_ap_init() and change all
call sites to use the appropriate one.
Change-Id: I92f55e09754a93f3f01dd8e5aa1ffdf60c856126
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3151
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reduce use of magic numbers and add AXI type MEM-AP detection. Don't try
to call dap_rom_display on a non-existent AP.
AP identification is unique per designer, so make sure the JEDEC code
matches ARM when interpreting the AP type.
Change-Id: I8e86b7de61811382afe99bf15094ab71b43f5fdf
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3150
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Change the debug_ap and memory_ap fields of the cortex_a target and
the debug_ap field of the cortex_m target to be pointers to the
struct adiv5_ap instead of AP numbers in some known DAP.
This reduces the dependency on the DAP struct in the targets and
enables MEM-AP accesses to take the relevant AP as parameter.
Change-Id: I39d7b134d78000564b7eec5bff464adf0ef89147
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3147
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This required fixing the AP ID parsing in dap_find_ap() to
match IHI0031C. The AXI type was added too.
Change-Id: I44577a7848df37586e650dce0fb57ac26f5f858c
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3146
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This will make it possible to reference directly the AP used for debug
in the target instance and remove the DAP reference. This will in turn
enable getting rid of the need to select an "active" AP in the DAP (using
dap apsel).
Change-Id: I265846a427c714204f4fd3df3cdb75843686c2d0
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3144
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Not clear what it was supposed to be used for. It probably shouldn't.
Change-Id: Ife1d833e59ba80f93876447d752a0ca7e7b57b0f
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3143
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Andreas Färber
Aleksander Morgado
Matthias Welwarsky
Uwe Bonnes
Salvador Arroyo
Salvador Arroyo
Tomas Vanek
Marc Schink
Andreas Fritiofson
Evan Hunter
Linus Walleij
Alexander Kurz
Alamy Liu
Kent Brinkley
Ivan De Cesaris
Jiri Kastner
Matthias Welwarsky
Peter A. Bigot
Peter Lawrence
Paul Fertser