Tim Newsome [Wed, 13 Dec 2017 21:13:22 +0000 (13:13 -0800)]
Add read buffer to bitbang, improving performance.
Previously for every bit scanned OpenOCD would write the bit, wait for
that bit to be scanned, and then read the result. This involves at least
2 context switches. Most of the time the next bit scanned does not
depend on the last bit we read, so with a buffer we now write a bunch of
bits to be scanned all at once, and then we wait for them all to be
scanned and have a result.
This reduces the time for one testcase where OpenOCD connects to a
simulator from 12.30s to 5.35s!
Christopher Head [Wed, 24 Jan 2018 22:35:40 +0000 (14:35 -0800)]
Use timeval helpers
Some of these changes actually fix broken comparisons which could
occasionally fail. Others just clean up the code and make it more clear.
Change-Id: I6c398bdc45fa0d2716f48a74822457d1351f81a5 Signed-off-by: Christopher Head <chead@zaber.com>
Reviewed-on: http://openocd.zylin.com/4380 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Christopher Head [Wed, 24 Jan 2018 22:22:37 +0000 (14:22 -0800)]
Add timeval_compare helper function
Change-Id: Id75727a150912ff778a4fa32ad56467da33a6324 Signed-off-by: Christopher Head <chead@zaber.com>
Reviewed-on: http://openocd.zylin.com/4379 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tomas Vanek [Wed, 6 Sep 2017 20:34:14 +0000 (22:34 +0200)]
flash Kinetis: make FCF protection more user friendly
The Flash Configuration Field on Kinetis devices requires protection
because it is located in program flash space (at 0x400) and writing
an improper data to it may permanently lock the device. Even an erased
flash sector containing FCF engages security lock (not permanent one)
on the next reset or power cycle.
'kinetis fcf_source protection' mode was introduced in the change #3562.
Flash driver in this mode sets FCF immediately after sector erase to
prevent unintentional security lock. To do so the driver needs to know
FCF values before flash image data is actually processed. Flash
protection bits are available in bank structure, FOPT can be set by
'kinetis fopt' command and securing device by FSEC is not supported.
Nevertheless an inexperienced user flashed the device using an image
with FCF values different from those set in OpenOCD config and
concluded programming did not work as some verify errors showed.
This change tries to write maximum possible from image data
retaining FCF protection.
Check FCF in programmed data and report if some field differs from
values set by OpenOCD flash block protection and 'kinetis fopt' command.
Warn user about verify errors caused by FCF protection.
On devices with ECC flash (K26, K66 and KV5x) it is impossible to change
already programmed FCF - it would result in an ECC error. As FCF was
written just after erase in 'kinetis fcf_source protection' mode
the warning issued during flash write is the only possible action.
On non-ECC flash devices use cumulative flash programming to
set FCF values requested in programmed image data.
Use FSEC from programmed data only if it does not request a secure
mode. Device can be secured only in 'kinetis fcf_source write' mode.
Use FOPT from programmed data if its value was not configured
in OpenOCD config by 'kinetis fopt' command.
Change-Id: If65fbbd7700069f57e4ae32234dce371bff93674 Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4228 Tested-by: jenkins Reviewed-by: Robert Foss <robert.foss@memcpy.io> Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Paul Fertser [Wed, 17 Jan 2018 14:31:58 +0000 (17:31 +0300)]
server: add safeguards against printing bogus port number
Clang static checker emits "Assigned value is garbage or undefined"
warning there as it can't prove that when the socket descriptor is
AF_INET/SOCK_STREAM and getsockname doesn't return an error, sin_port
is guaranteed to be filled in.
Pacify it by obvious means.
Change-Id: I43b5e5ceb41c07d523a81b34a25490c4c5f49a70 Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4350 Tested-by: jenkins Reviewed-by: Tim Newsome <tim@sifive.com> Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Don't use atomic dap operations when not necessary. Also remove
loop trying to set core power request, didn't find a platform
where it actually worked and it's slowing examination down.
Robert Jordens [Tue, 8 Aug 2017 16:16:35 +0000 (18:16 +0200)]
jtagspi: new protocol that includes transfer length
This commit contains a rewrite of the jtagspi protocol and covers both
changes in the jtagspi.c openocd driver and the bscan_spi
(xilinx_bscan_spi) proxy bitstreams. The changes are as follows:
1. Always perform IR scan to ensure proper clearing of BYPASSed DRs.
2. Insert alignment cycles for all BYPASSed TAPs:
The previous logic was erroneous. The delay in clock cyles from a bit
written to the jtag interface to a bit read by the jtag interface is:
* The number of BYPASSed TAPs before this (jtagspi) tap
* The length of the jtagspi data register (1)
* The number of BYPASSed TAPs before this one.
I.e. it is just the number of enabled TAPs. This also gets rid of the
configuration parameter DR_LENGTH.
3. Use marker bit to start spi transfer
If there are TAPs ahead of this one on the JTAG chain, and we are in
DR-SHIFT, there will be old bits toggled through first before the first
valid bit destined for the flash.
This delays the begin of the JTAGSPI transaction until the first high bit.
4. New jtagspi protocol
A JTAGSPI transfer now consists of:
* an arbitrary number of 0 bits (from BYPASS registers in front of the
JTAG2SPI DR)
* a marker bit (1) indicating the start of the JTAG2SPI transaction
* 32 bits (big endian) describing the length of the SPI transaction
* a number of SPI clock cycles (corresponding to 3.) with CS_N asserted
* an arbitrary number of cycles (to shift MISO/TDO data through
subsequent BYPASS registers)
5. xilinx_bscan_spi: clean up, add ultrascale
This is tested on the following configurations:
* KC705: XC7K325T
* Sayma AMC: XCKU040
* Sayma AMC + RTM): XCKU040 + XC7A15T, a board with integrated FTDI JTAG
adapter, SCANSTA JTAG router, a Xilinx Ultrascale XCKU040 and a Xilinx
Artix 7 15T. https://github.com/m-labs/sinara/wiki/Sayma
* Custom board with Lattice FPGA + XC7A35T
* CUstom board with 3x XCKU115-2FLVA1517E
Change-Id: I7361e9fb284ebb916302941735eebef3612aa103 Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/4236 Tested-by: jenkins Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Patrick Stewart [Wed, 27 Aug 2014 16:17:27 +0000 (17:17 +0100)]
ftdi swd: disable SWD output pin during input
* Disables the data output pin while SWD is reading, so that a simple FTDI
SWD interface can be made by connecting TCK to SWD_CLK and TDI+TDO directly
to SWDIO. Enabled by setting SWDIO_OE to 0.
Change-Id: I7d3b71cf3f4eea163cb320aff69ed95d219190bd Signed-off-by: Patrick Stewart <patstew@gmail.com> Signed-off-by: Roger Lendenmann <roger.lendenmann@intel.com>
Reviewed-on: http://openocd.zylin.com/2274 Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com> Tested-by: jenkins
Tim Newsome [Tue, 26 Dec 2017 21:44:26 +0000 (13:44 -0800)]
Support listening on port 0.
When listening on port 0, the system will assign a random open port. We
use this to run multiple OpenOCD instances against multiple simulators
as part of regression testing. This mechanism means the various test
instances don't have to coordinate to ensure they don't reuse any ports.
The required changes are minimal:
1. Don't increment the port number when it's 0.
2. Print out which port was assigned by the system.
Change-Id: I404c801fc405e9d8eb8420562c02e78d4db6242f Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/4316 Tested-by: jenkins Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Jiri Kastner [Mon, 16 Jan 2017 15:57:58 +0000 (16:57 +0100)]
ejtag: added missing instructions.
added missing instructions from latest available ejtag specification
(MD00047 v6.1 at time of writting) for trace control, fast data channel
and pcsample.
Karl Palsson [Fri, 8 Sep 2017 10:49:30 +0000 (10:49 +0000)]
hla_target: allow non-intrusive profiling on cortex-m
Leverages the existing work that added profiling via DWT_PCSR.
hla_target doesn't have direct access to the mem_ap for doing a bulk
repeated read, but simply reading the DWT_PCSR register repeatedly is
still ~2 order of magnitude faster than halt/resume.
Change-Id: Ibe451aa95143694398370fdad6939cfb6191d56f Signed-off-by: Karl Palsson <karlp@tweak.net.au>
Reviewed-on: http://openocd.zylin.com/4220 Tested-by: jenkins Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Simon Schubert [Fri, 1 Sep 2017 18:34:09 +0000 (20:34 +0200)]
cortex_m: add profiling function
Use DWT_PCSR if present (reads nonzero); otherwise do halt-and-sample pc.
Signed-off-by: Simon Schubert <2@0x2c.org>
Change-Id: Id2dc4665e5008cc497a2e6e6493522d038d5af42
Reviewed-on: http://openocd.zylin.com/4211 Tested-by: jenkins Reviewed-by: Karl Palsson <karlp@tweak.net.au> Reviewed-by: Christopher Head <chead@zaber.com> Reviewed-by: Paul Fertser <fercerpav@gmail.com>
When testing with Intel Galileo GEN2 I have noticed a few iterations
where probemode entry took a little longer. At most I had to read
tapstatus twice. This patch uses a loop of up to 100 iterations to
wait for tapstatus to update with PM entry results.
Change-Id: I1c87d7dde715255b3fd2460d299b9493218533fc Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Reviewed-on: http://openocd.zylin.com/4013 Tested-by: jenkins Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Robert Jordens [Thu, 3 Aug 2017 14:25:13 +0000 (16:25 +0200)]
digilent_jtag_smt2_nc: add support
The Digilent SMT2 NC is nominally the connector-less version of the
SMT2. But neither the SMT2 configuration nor the HS3 configuration work
for on the Xilinx KCU105 board where the SMT2 NC is used.
Change-Id: Ieb27cbc6d8b0f9c64ef778e4e0c839acc85ec0ef Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/4187 Tested-by: jenkins Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Ake Rehnman [Sat, 21 Jan 2017 09:42:11 +0000 (10:42 +0100)]
jtag/drivers/stlink_usb : implemented and repaired SWIM support
Fixed a bug in stlink_usb_read_mem/write_mem preventing large data transfers
The SWIM support in stlink_usb was basically non existent so I have
implemented the missing parts. The bCBWCBLength and dCBWDataTransferLength
for STLINK-V1 protocol was not correct so that was fixed. The reason for
adding SWIM support is to add STM8 support for OpenOCD.
I have tested the driver on:
STM8 discovery board with the built-in STLINK-V1
STM8 discovery board with STLINK-V2 dongle
STM32 vldiscovery board with the built-in STLINK-V1
STM32F1xxx processor with STLINK-V2 dongle
Change-Id: I4aa80a92fb0226174356adaf2f8ff949920a621f Signed-off-by: Ake Rehnman <ake.rehnman@gmail.com>
Reviewed-on: http://openocd.zylin.com/3952 Tested-by: jenkins Reviewed-by: Philipp Klaus Krause Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Functions mem_ap_read() and mem_ap_write() incremented address even
if addrinc=false. I overlooked this fact and moved mem_ap_setup_tar()
set wrong addresses in no-incr mode.
Fixed by preventing address increment in no-incr mode.
Change-Id: I512e12a6a64e30cf6bc5bf77e3d57d35cc33e058 Signed-off-by: Tomas Vanek <vanekt@fbl.cz> Suggested-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/4326 Tested-by: jenkins Reviewed-by: Christopher Head <chead@zaber.com> Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tomas Vanek [Thu, 15 Jun 2017 09:03:32 +0000 (11:03 +0200)]
arm_adi_v5: reduce some CSW writes
MEM-AP access through banked data registers MEM_AP_REG_BD0..3
does not increment TAR regardless of the current autoincrement mode.
mem_ap_read_u32() and mem_ap_write_u32() can keep the current
autoincrement mode instead of switching autoincrement off.
Change-Id: Ib7ec688d3e04f1da678363cd2819ce90e8910e58 Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4163 Tested-by: jenkins Reviewed-by: Andreas Bolsch <hyphen0break@gmail.com> Reviewed-by: Christopher Head <chead@zaber.com> Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tomas Vanek [Thu, 15 Jun 2017 06:59:01 +0000 (08:59 +0200)]
arm_adi_v5: fix wrong addressing after change of CSW_ADDRINC
Problem: If the same memory location is accessed alternatively
by MEM-AP banked data registers without autoincrement and by standard
autoincremented read/write, TAR register is not updated correctly.
How to replicate: On a Cortex-M issue
mdw 0xe000edf0
multiple times. When poll is on (poll reads the same memory location)
only the first read is correct.
0xe000edf0: 01000000
0xe000edf0: 00000000
0xe000edf0: 20002640
0xe000edf0: 01000000
0xe000edf0: 00000000
0xe000edf0: 00000000
mem_ap_setup_tar() writes to MEM_AP_REG_TAR if requested TAR value
changed or CSW_ADDRINC_... is currently active.
However if an autoincremented access has been issued and autoinc
switched off in CSW afterwards, TAR does not get updated.
The change introduces mem_ap_update_tar_cache() which is called
after queuing of any access to MEM_AP_REG_DRW. It simulates
TAR increment to keep tar_value in sync with MEM_AP.
Crossing tar autoincrement block boundary invalidates cached value.
mem_ap_write() and mem_ap_read() do not check tar autoincrement
block boundary, mem_ap_setup_tar() is called before each transfer instead.
dap_invalidate_cache() is introduced to ensure invalidation
of all cached values during dap_dp_init() and swd_connect()
Change-Id: I815c2283d2989cffd6ea9a4100ce2f29dc3fb7b4 Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4162 Tested-by: jenkins Reviewed-by: Christopher Head <chead@zaber.com> Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Bas Vermeulen [Sun, 26 Nov 2017 21:31:55 +0000 (22:31 +0100)]
target aarch64: rework memory read/write to use 8/16/32 bit operations
The existing code only used Memory Access mode to read memory,
which uses 32 bit operations only.
Rework the code to check the alignment/size of the read/write operation,
and use the Memory Access mode to read aligned 32 bit memory.
When using unaligned access, or 8 or 16 bit reads, use LDR{BHW} and STR{BHW}
instead.
The exception handling is still the same as it was before (meaning it breaks
when things go wrong), but I can now read an 8 bit register correctly.
Change-Id: I739a5ee825c0226ed4a89c32895cc2a047b8dc15 Signed-off-by: Bas Vermeulen <bas@daedalean.ai>
Reviewed-on: http://openocd.zylin.com/4301 Tested-by: jenkins Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de> Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tomas Vanek [Sun, 9 Apr 2017 08:59:57 +0000 (10:59 +0200)]
jtag/drivers/cmsis-dap: fix connect under reset
Commit ef02b69b14d133b061217a91add5a028a77e86bc included
a call to cmsis_dap_cmd_DAP_Connect() before calling
cmsis_dap_cmd_DAP_SWJ_Sequence(). According to comment
it is necessary for at least Keil ULINK-ME.
Commit 72c3464be42088dc75245cf2fcc8f5c6e6959b4b added
a cmsis_dap_cmd_DAP_Disconnect() before connect call to pair
connection/disconnection. It solves some problems on Atmel EDBG.
Unfortunately calling either of cmsis_dap_cmd_DAP_Connect()
or cmsis_dap_cmd_DAP_Disconnect() deasserts reset signal.
So these workarounds break ability to connect under reset.
Use cmsis_dap_cmd_DAP_Disconnect() and cmsis_dap_cmd_DAP_Connect()
pair only if both SRST and TRST are deasserted.
Change-Id: I0914dae0a1360b8c7fe48231ff3867caedfb2dbe Signed-off-by: Tomas Vanek <vanekt@fbl.cz> Reported-by: Leonardo Sabino dos Santos <leonardo.sabino@gmail.com>
Reviewed-on: http://openocd.zylin.com/4100 Tested-by: jenkins Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tomas Vanek [Thu, 23 Nov 2017 13:47:37 +0000 (14:47 +0100)]
flash/nor/stm32f2x: fix erase on STM32F413/423
Theese devices do not have a gap in sector numbering.
The driver translates sectors numbers 12 13... to 16 17... as used on dual
bank flash devices. Therefore erase of sector 12 and above fails with error
'stm32x device protected'
on F413/423.
Drop sector number translation for devices without has_large_mem flag.
Change-Id: I65531c0dfe02e2fd0f3d68f0615e0926e9901391 Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4299 Tested-by: jenkins Reviewed-by: Andreas Bolsch <hyphen0break@gmail.com> Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Tomas Vanek [Thu, 26 Oct 2017 16:00:33 +0000 (18:00 +0200)]
flash/nor/stm32f2x: fix protection block size for F767 in dual bank mode
A protection block comprises two adjacent sectors in dual bank mode.
As there are 64 and 128kB sectors joined in blocks 2 and 8, block size
should be computed as a sum of sector sizes.
Change-Id: Ie915df8cf7ca232c4565d7e0c514c8933e71fdfe Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4271 Tested-by: jenkins Reviewed-by: Andreas Bolsch <hyphen0break@gmail.com> Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Ake Rehnman [Mon, 6 Nov 2017 18:56:28 +0000 (19:56 +0100)]
stm8 : new target
New STM8 target based mostly on mips4k. Target communication
through STLINK/SWIM. No flash driver yet but it is still possible
to program flash through load_image command. The usual target debug
methods are implemented.
Change-Id: I7216f231d3ac7c70cae20f1cd8463c2ed864a329 Signed-off-by: Ake Rehnman <ake.rehnman@gmail.com>
Reviewed-on: http://openocd.zylin.com/3953 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz> Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Bas Vermeulen [Tue, 21 Nov 2017 16:12:24 +0000 (17:12 +0100)]
Only call cmsis_dap_cmd_DAP_SWD_Configure when swd_mode is enabled
The CMSIS-DAP used by NXP's LS1012ARDB board only supports JTAG,
and not SWD. Calling cmsis_dap_cmd_DAP_SWD_Configure returns with an
error (and doesn't actually do anything in the debugger).
Wrap the call to cmsis_dap_cmd_DAP_SWD_Configure in a check for
swd_mode, to make sure initialisation doesn't fail needlessly.
Change-Id: Id7e568cb6e36886bd7c5b3699d198a77a51c28c9 Signed-off-by: Bas Vermeulen <bas@daedalean.ai>
Reviewed-on: http://openocd.zylin.com/4294 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz> Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Robert Jordens [Fri, 19 Aug 2016 21:49:49 +0000 (05:49 +0800)]
spi: add n25q256 flash
* 256 MBit SPI flash
* https://www.micron.com/~/media/documents/products/data-sheet/nor-flash/serial-nor/mt25q/die-rev-a/mt25q_qljs_l_256_aba_0.pdf spells out the entire zoo of IDs
* used e.g. on Xilinx KCU105
Change-Id: I18b19292b4869627adb9071266271962fec68fb4 Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/4186 Tested-by: jenkins Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Marc Schink [Sun, 29 Oct 2017 14:58:41 +0000 (15:58 +0100)]
target: Constify parameter of is_armv7m()
Change-Id: Ieea1b0dec88818e9e8d5c8c5d54aa8959556d77b Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/4275 Tested-by: jenkins Reviewed-by: Christopher Head <chead@zaber.com> Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Jonas Norling [Wed, 25 Oct 2017 09:33:06 +0000 (11:33 +0200)]
ftdi: Enable SWDIO output before sending data on it
The SWDIO buffer has to be enabled, by setting SWDIO_OE, for data on
SWDIO to reach the target. Explicitly do this before sending the
switch sequences for JTAG-to-SWD, etc.
This makes the code insensitive to the state of SWDIO_OE specified in
ftdi_layout_init. It used to work only on adapters with a non-inverted
SWDIO_OE inited to 1, or inverted SWDIO_OE inited to 0.
Change-Id: I4b9e520ac1c7ce2a437251a05fc036bc68de718e Signed-off-by: Jonas Norling <jonas.norling@cyanconnode.com>
Reviewed-on: http://openocd.zylin.com/4270 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz> Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Similar to the Sheevaplug fix inf95f8b70fbd0f7e9c91a2d9006b1abb2dd07ebf2
the OpenRD device has its JTAG interface on the first channel of the
ft2232, which is 0 for the new driver but was 1 for the old one. Correct
the config file appropriately. Also the device description was missing
the trailing " B" and thus not picking up the device correctly. Finally
add an adapter_khz setting in the OpenRD board configuration file - set
to 2MHz to match the Sheeva variant.
Confirmed as working thanks to Phil Hands providing me access to his
hardware to test on.
See also Debian Bug#793214; https://bugs.debian.org/793214
Change-Id: Ifacf53124eaa330bbbdf36dfa79e3256bf2a5201 Signed-off-by: Jonathan McDowell <noodles@earth.li>
Reviewed-on: http://openocd.zylin.com/4254 Tested-by: jenkins Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
The dhcsr_save variable was used to save the value of
cortex_m->dcb_dhcsr so it could be restored later. However, all writes
in between the save and the restore use mem_ap_write_atomic_u32, not
cortex_m_write_debug_halt_mask, which means cortex_m->dcb_dhcsr isn’t
changed anyway. Delete the unnecessary local.
Change-Id: I064a3134e21398e1ecfc9f1fa7efd7b020b52341 Signed-off-by: Christopher Head <chead@zaber.com>
Reviewed-on: http://openocd.zylin.com/4240 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
In cortex_m_assert_reset, in two locations, DHCSR is written directly
using mem_ap_write_u32. This means that the cached version,
target_to_cm(target)->dcb_dhcsr, is not updated when these writes are
performed, so subsequent writes to DHCSR that use
cortex_m_write_debug_halt_mask will change those bits back to their old
values which, unless modified in that particular invocation, come from
the cache. This causes an actual, observable bug on an STM32F7 in which
running “reset run” immediately after “program” can in some cases result
in execution proceeding with C_MASKINTS set (it is cleared on line 1021
but is then set immediately afterward in cortex_m_clear_halt), causing
failure of the application. Replace these mem_ap_write_u32 calls with
cortex_m_write_debug_halt_mask calls to do the same jobs.
Change-Id: Id35ca7f6057c2df2ba9cd67c53a73b50816d0b71 Signed-off-by: Christopher Head <chead@zaber.com>
Reviewed-on: http://openocd.zylin.com/4239 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Freddie Chopin [Thu, 29 Jun 2017 21:49:03 +0000 (23:49 +0200)]
Fix GCC7 warnings about string truncation
GCC7 with -Wall warns about possible string truncation with
snprint()-type functions with "directive output may be truncated writing
1 byte into a region of size between 0 and 9
[-Werror=format-truncation=]" + "note: ‘snprintf’ output between 5 and
14 bytes into a destination of size 12" (or similar). Fix this by
increasing sizes of buffers.
See https://gcc.gnu.org/gcc-7/changes.html
Change-Id: Ib848f2a56dd658783534158947ae1be7c0e99d45 Signed-off-by: Freddie Chopin <freddie.chopin@gmail.com>
Reviewed-on: http://openocd.zylin.com/4175 Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com> Tested-by: jenkins Reviewed-by: Andreas Bolsch <hyphen0break@gmail.com>
Freddie Chopin [Thu, 29 Jun 2017 21:48:19 +0000 (23:48 +0200)]
Fix GCC7 warnings about switch-case fallthroughs
GCC7 with -Wextra warns about switch-case blocks which fallthrough with
"this statement may fall through [-Werror=implicit-fallthrough=]". This
can be fixed by adding "special" comments: "/* fallthrough */".
Peter Griffin [Mon, 12 Jun 2017 15:28:03 +0000 (16:28 +0100)]
tcl: add hi3798 target and Tocoding Poplar board config
This config covers the 4x Cortex A53 CPUs. A custom connector
is required from J14 to standard ARM JTAG on v1 boards. However
v2 hardware should have a standard FTSH-105-01-L-DV connector.
Pinmuxing code to enable JTAG pins is included in l-loader-poplar
repository, so board is flashed with open source code, JTAG
is available at very early boot. Alternatively the following
pokes can be issued from U-Boot to enable JTAG (e.g. to debug
hisilicon SDK).
Uwe Bonnes [Mon, 14 Nov 2016 18:12:38 +0000 (19:12 +0100)]
stm32lx.c: Read IDcode at appropriate address.
Trying to read the L0 idcode at the L1 idcode address 0xE0042000 often
resulted in an uncatched error. Reading at the right L0 address 0x40015800
afterwards results in reading 0. So access to the device is denied..
projects / openocd / log