Commit Graph

173 Commits

Author SHA1 Message Date
Antonio Borneo 246782229f smp: replace commands smp_on/smp_off with "smp [on|off]"
Seams over-engineered having two separate commands to turn SMP
on/off. Plus it is missing the possibility to dump the current
status of SMP and would be weird adding an additional command
for it. Moreover, such commands are replicated in few targets so
it would make sense centralizing them.

- Deprecate the commands "smp_on" and "smp_off".
- Add a new command "smp" that accepts optional parameters
  "[on|off]" and prints the SMP status when run without
  parameters. This replaces the two commands above.
- Put the deprecated and the new command handlers in smp.c
- Update the documentation, except for mips_m4k, since it is not
  available yet.
- Promote the macro foreach_smp_target to global context and use
  it where possible.

Change-Id: Ia72841c1a3bd6edd4db4cc809046322f498617e6
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4615
Tested-by: jenkins
Reviewed-by: Graham Sanderson <graham.sanderson@gmail.com>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2019-03-27 08:55:03 +00:00
Marc Schink 8795090edc target/cortex_a: Use 'bool' data type
Change-Id: I055767f1c20af539159ee59e35de8dd20b399fa4
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/4963
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
2019-03-06 16:15:23 +00:00
Marc Schink 21687eb983 Use enum for target_register_timer_callback()
Change-Id: I268e8c5d783914aa97cbde301448b2c5bc3cb9e6
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/4921
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
2019-03-01 08:32:03 +00:00
Antonio Borneo 3b39618eb5 cortex_a: fix a potential memory leak in cortex_a_target_create()
If the function cortex_a_target_create() or the function
cortex_r4_target_create() exit for an error, the value of pointer
cortex_a get lost, causing a memory leak.

Move the allocation of cortex_a after the check on the parameters.
While there, add checks on the value returned by calloc().

Issue highlighted by clang 7.0.0.

Change-Id: Ic6eeb9c3b39922d016f6d0319eada1a97a6681f0
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4925
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2019-02-25 21:53:30 +00:00
Tarek BOCHKATI 63aa917015 cortex_a_poll: minor code factorization to enhance readability
cortex_a_debug_entry and update_halt_gdb are called in two consecutive
conditions which are complementary, so externalizing the common code
makes the conditions' body lighter

With the removal of LOG_DEBUG(" ") since it does not look too informative

Change-Id: I0c54e413619576bb3af164f2dcf256c5a862c5fd
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: http://openocd.zylin.com/4832
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
2019-01-16 10:52:43 +00:00
Antonio Borneo 5c941edc7b target/arm: add support for multi-architecture gdb
GDB can be built for multi-architecture through the command
	./configure --enable-targets=all && make
Such multi-architecture GDB requires the target's architecture to
be selected either manually by the user through the GDB command
"set architecture" or automatically by the target description sent
by the remote target (i.e. OpenOCD).

Commit e65acd889c ("gdb_server: add
support for architecture element") already provides the required
infrastructure to support multi-architecture gdb.

arm-none-eabi-gdb 8.2 uses "arm" as default architecture, but also
supports the following values: "arm_any", "armv2", "armv2a",
"armv3", "armv3m", "armv4", "armv4t", "armv5", "armv5t", "armv5te",
"armv5tej", "armv6", "armv6k", "armv6kz", "armv6-m", "armv6s-m",
"armv6t2", "armv7", "armv7e-m", "armv8-a", "armv8-m.base",
"armv8-m.main", "armv8-r", "ep9312", "iwmmxt", "iwmmxt2", "xscale".
These values can be displayed on arm gdb prompt by typing
"set architecture " followed by a TAB for autocompletion.

Set the gdb architecture value for all arm targets to "arm".

Change-Id: I176cb89878606e1febd546ce26543b3e7849500a
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4754
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2019-01-08 09:59:42 +00:00
Antonio Borneo bff87a7f28 target/cortex_a: enable DSCR_HALT_DBG_MODE during examine
Arm architecture reference manual DDI0406C reports at page 2024 in
table C3-1 the processor behaviour on debug events depending on
the debug-mode (none, monitor or halt), mode selected through the
bits MDBGen and HDBGen in DSCR register.

The halt request is served independently from the debug-mode. Thus
it's useless to enable the halt debug-mode in cortex_a_halt() by
setting the bit HDBGen (macro DSCR_HALT_DBG_MODE).

On the other side, halting for a breakpoint, a watchpoint or a
vector catch requires being in halt debug-mode.
Today HDBGen is set only in cortex_a_halt(), so we are forced to
halt the core at least once before it can be halted for hitting a
breakpoint/watchpoint/vector-catch. This is annoying since there
is no need to halt the target to set a HW breakpoint.

Move in cortex_a_init_debug_access() the selection of the halt
debug-mode, so the mode is set during examine.
To prevent a misconfigured hardware breakpoint/watchpoint/vector
catch to halt the target when OpenOCD has already quit, return to
debug-mode none at OpenOCD exit.

Change-Id: I68a1c51de3572ca1b89e90caf7eb20374268e926
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4783
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-12-18 13:22:55 +00:00
Matthias Welwarsky 010b09121c armv7a: ARMv7-A MMU tools
factor out mmu-related code from armv7a.c, add a 'dump' command for
page tables.

Change-Id: Ic1ac3c645d7fd097e9d625c7c8302e7065875dd4
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4327
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-11-08 09:10:09 +00:00
Antonio Borneo 29c81a8051 target/cortex_a: remove duplicate code to read target registers
The functions cortex_a_dap_{read,write}_coreregister_u32() are
duplicate of the functions dpm_{read,write}_reg().

Remove both duplicated functions in cortex_a.c while export only
dpm_read_reg(), since dpm_write_reg() is currently not used.
Rename dpm_read_reg() as arm_dpm_read_reg() to keep uniform the
naming style.

Change-Id: I501bc99dc402039e630c47917a086a0bb382782c
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4747
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Tested-by: jenkins
2018-11-06 12:42:24 +00:00
Antonio Borneo cf9c0fba9b target/arm_dpm: uniform names of exported functions
The name of the function dpm_modeswitch() does not follow the
common style of the other function names in the same file.

Rename it as arm_dpm_modeswitch().

Change-Id: Idebf3c7bbddcd9b3c7b44f8d0dea1e5f7549b0eb
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4756
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-11-06 12:18:40 +00:00
Antonio Borneo fac9be64d9 target/cortex_a: remove buggy memory AP accesses
The armv7m debug port provides a direct access to the CPU memory
bus, allowing the debugger to bypass the CPU for every memory
operation.
The armv7a debug port doesn't offer the same feature, mainly
because CPU caches and MMU makes the direct memory access more
tricky. Nevertheless most SoC with armv7a provide direct memory
access through an AHB bus available on another DAP access port,
different from the debug port.

The original port of cortex_a in OpenOCD was inspired from the
working cortex_m code, and provided optional memory access
through the AHB, if present.
The code for AHB access is problematic and partially buggy due
to incomplete management of cache coherency and missing check of
page boundary during virtual address operations.

With the commit 5d458cf727
("target/mem_ap: generic mem-ap target") we have a clean support
for memory access through system buses connected to DAP AP, which
obsoletes the buggy memory AP hack in cortex_a.

Remove any code that uses the memory AP accesses in cortex_a.

Change-Id: I7cd1f94885e5817448058953e043d8da90dea3cc
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4748
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-11-06 12:18:32 +00:00
Antonio Borneo e63dab0898 target/cortex_a: remove unused code controlled by "fast_reg_read"
The variable fast_reg_read is always zero, causing some code to
never be executed.
Such code try to read the target registers by dumping them in
memory and then reading back the memory through the debugger. But
it is broken due to lack of cache and MMU management.
This code also uses the broken memory_ap access that is going to
be removed soon.

Remove all the code that depends on fast_reg_read not zero.
Add a missing check on arm_dpm_read_current_registers() return.
Keep the unused function cortex_a_dap_write_coreregister_u32()
to balance the used "read" version.

Change-Id: If2ff28a8c49eb0a87dc85207f5431978efd158db
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4746
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-11-06 12:17:48 +00:00
Antonio Borneo cf81de7052 target/cortex_a: fix temporary breakpoint during step
Commit c8926d1457 introduces the
context and hybrid breakpoint types beside existing SW and HW
types. The new field "asid" is non-zero only for these new types.

The commit above did not properly initialize "asid" to 0 for a
temporarily HW breakpoint used during single step. This causes
cortex_a_unset_breakpoint() to identify this breakpoint as of
type "hybrid".

Identified through valgrind error:
Conditional jump or move depends on uninitialised value(s)
Actually valgrind triggers a total of 10 messages about use of
uninitialized variables, but they are all caused by the first
conditional jump bases on "asid != 0".

Fixed by initializing "asid" to 0 in cortex_a_step().

Fixes: c8926d1457 ("cortex_a hybrid & context breakpoints")
Change-Id: Ib674d8457d1e02e10332fd9d73554d13719ef93d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4613
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-10-27 14:58:02 +01:00
Antonio Borneo 56cdc3f3d5 target/cortex_a: poll all targets in SMP node after halt
The periodic poll scans all the targets in the same order they
have been declared in the configuration file.
When one target in a SMP node halts, the transition is detected
in the following poll and this triggers a halt request to all the
other cores of the SMP node.
The targets that will be polled afterwards will be identified as
"halted", but the targets already scanned will remain as
"running" until the next periodic poll.
This creates a race condition with GDB; GDB sets the breakpoints
when runs the target and removes them as soon as the target is
halted. When it receives the halt event, it starts removing the
breakpoints and fails on the targets that are still reported as
"running".

Fixed by polling all the targets in the SMP node before informing
GDB about the halt event.
This implementation is almost copy/paste from the one in aarch64.

Change-Id: Id2bd99f1e56b014e48e9e34ccb891b4219c518f8
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4622
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-09-12 15:14:42 +01:00
Antonio Borneo 766d6114fe target/cortex_a: allow command dacrfixup during init phase
There is no reason to restrict the command "cortex_a dacrfixup"
to the EXEC phase only.
Change the command mode to ANY so the command can be used in
the initialization phase too.

Change-Id: I498cc6b2dbdc48b3b2dd5f0445519a51857b295f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4623
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-08-06 11:19:20 +01:00
Paul Bartholomew 4896c83ce8 target/cortex_a: fix compile error for uninitialized variable
Commit ad6c71e151 introduced the
variable "mmu_enabled" whose pointer is passed to cortex_a_mmu()
that initialises it.
This initialization is not visible to the compiler that issue
a compile error.
The same situation is common across the same file and the usual
workaround is to initialize it to zero; thus the same fix i
applied here.

Ticket: https://sourceforge.net/p/openocd/tickets/197/
Fixes: commit ad6c71e151 ("cortex_a: fix virt2phys when mmu is disabled")
Change-Id: I77dec41acdf4c715b45ae37b72e36719d96d9283
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4619
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-07-27 14:12:08 +01:00
Matthias Welwarsky ad6c71e151 cortex_a: fix virt2phys when mmu is disabled
When the MMU is not enabled on debug state entry, virt2phys cannot
perform a translation since it is unknown whether a valid MMU
configuration existed before. In this case, return the virtual
address as physical address.

Change-Id: I6f85a7a5dbc200be1a4b5badf10a1a717f1c79c0
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4480
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-07-24 13:08:12 +01:00
Antonio Borneo 42097baf19 armv7a: read ttbcr and ttb0/1 at every entry in debug state
Commit bfc5c764df avoids reading
ttbcr and ttb0/1 at every virt2phys translation by caching them,
and it updates the cached values in armv7a_arch_state().
But the purpose of any (*arch_state)() method, thus including
armv7a_arch_state(), is to only print out and inform the user
about some architecture specific status.
Moreover, to reduce the verbosity during a GDB session, the
method (*arch_state)() is not executed anymore at debug state
entry (check use of target->verbose_halt_msg in src/openocd.c),
thus the state of translation table gets out-of-sync triggering
	Error: Address translation failure
or even using a wrong address in the memory R/W operation.

In addition, the commit above breaks the case of armv7r by
calling armv7a_read_ttbcr() unconditionally.

Fixed by moving in cortex_a_post_debug_entry() the call to
armv7a_read_ttbcr() on armv7a case only.
Remove the call to armv7a_read_ttbcr() in armv7a_identify_cache()
since it is (conditionally) called only in the same procedure
cortex_a_post_debug_entry().

Fixes: bfc5c764df ("armv7a: cache ttbcr and ttb0/1 on debug
state entry")
Change-Id: Ifc20eca190111832e339a01b7f85d28c1547c8ba
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4601
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-07-22 09:09:06 +01:00
Matthias Welwarsky 2231da8ec4 target: restructure dap support
- add 'dap create' command to create dap instances
- move all dap subcmmand into the dap instance commands
- keep 'dap info' for convenience
- change all armv7 and armv8 targets to take a dap
  instance instead of a jtag chain position
- restructure tap/dap/target relations, jtag tap no
  longer references the dap, daps are now independently
  created and initialized.
- clean up swd connect
- re-initialize DAP also on JTAG errors (e.g. after reset,
  power cycle)
- update documentation
- update target files

Change-Id: I322cf3969b5407c25d1d3962f9d9b9bc1df067d9
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4468
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-03-30 09:58:21 +01:00
Tomas Vanek 78a44055c5 transport: add transport_is_hla()
and move declaration of all transport_is_xxx() functions to transport.h

Change-Id: Ib229115b5017507b49655bc43b517ab6fb32f7a6
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4469
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-03-20 11:48:44 +00:00
Omair Javaid f18ca510b3 Support for Arm VFP v3 registers read/write
This patch adds support in openOCD to read/write Arm vector/floating 
point registers. This is compatible with Arm vfp v3 target xml in GDB. 
Please refer to binutils-gdb/gdb/features/arm/arm-vfpv3.xml

Change-Id: Id4dd1bddef51c558f1a86300c1a876d159463f18
Signed-off-by: Omair Javaid <omair.javaid@linaro.org>
Reviewed-on: http://openocd.zylin.com/4421
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Tested-by: jenkins
2018-03-10 14:25:10 +00:00
Evan Hunter db268a3115 Cortex-R : Remove commands which are not relevant to Cortex-R
Change-Id: I8dec85150386c149ffdb7bf4e7e533f16bb63b84
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/2877
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-03-09 08:17:48 +00:00
Matthias Welwarsky b551c62a7f cortex_a: fix handling of Thumb-2 32bit breakpoints
When debugging Thumb-2 code, Gdb will at times send a
breakpoint packet 'Z0,<addr>,3', the number 3 denoting that
the instruction to break on is 32 bits long. Handle this by
replacing it with two consecutive 16bit Thumb BKPTs and make
sure to save and restore the full, original 32bit
instruction.

Note that this fix is only applicable if you debug a bare-metal program
(like the linux kernel) with the 'wrong' gdb, e.g. use an 
"arm-linux" gdb instead of an "arm-eabi" gdb. But since most people
may not know about the subtle differences between gdb configurations
regarding thumb2 breakpoints it's still valid.

Change-Id: Ib93025faf35b11f0dba747a8c1fc36fd09a4c0f8
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4241
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Tested-by: jenkins
2018-02-21 08:20:28 +00:00
Matthias Welwarsky 78a4b6607e cortex_a: faster debug init
Don't use atomic dap operations when not necessary

Change-Id: Idc6dcd2bda95f7994852df4ae2a588976f4c9010
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4142
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2018-02-07 18:10:52 +00:00
Matthias Welwarsky 4afa32ece1 aarch64: unify armv7-a and armv8 debug entry decoding
Make DSCR_RUN_MODE() usable for armv8 and arm7 debug

Change-Id: Ib3ba3000d5b6aa03e590f3ca4969e677474eb12c
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
2017-02-10 14:01:39 +01:00
David Ung 9cbfc9feb3 arm_dpm: Add new state ARM_STATE_AARCH64
Add new enum ARM_STATE_AARCH64 to the list of possible states.

Change-Id: I3cb2df70f8d5803a63d8374bf3eb75de988e24f8
Signed-off-by: David Ung <david.ung.42@gmail.com>
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
2017-02-10 13:52:52 +01:00
Dongxue Zhang 47b8cf8420 target: Add 64-bit target address support
Define a target_addr_t type to support 32-bit and 64-bit addresses at
the same time. Also define matching TARGET_PRI*ADDR format macros as
well as a convenient TARGET_ADDR_FMT.

In targets that are 32-bit (avr32, nds32, arm7/9/11, fm4, xmc1000)
be least invasive by leaving the formatting unchanged apart from the
type;
for generic code adopt TARGET_ADDR_FMT as unified address format.

Don't silently change gdb formatting here, leave that to later.

Add COMMAND_PARSE_ADDRESS() macro to abstract the address type.
Implement it using its own parse_target_addr() function, in the hopes
of catching pointer type mismatches better.

Add '--disable-target64' configure option to revert to previous 32-bit
target address behavior.

Change-Id: I2e91d205862ceb14f94b3e72a7e99ee0373a85d5
Signed-off-by: Dongxue Zhang <elta.era@gmail.com>
Signed-off-by: David Ung <david.ung.42@gmail.com>
[AF: Default to enabling (Paul Fertser), rename macros, simplify]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
2017-02-10 13:50:17 +01:00
Paul Fertser d491b88dd9 target: cortex_a: fix segfault when SPSR is not properly handled
OpenOCD doesn't (yet) know how to handle HYP mode properly so spsr
register is not getting initialised when OpenOCD connects to a target
stopped in this mode.

Reported on IRC by thinkfat and nearffxx.

Change-Id: I4bda9ba0c582c8e9cacefe708cc4a3d947151f84
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3906
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Chengyu Zheng <chengyu.zheng@polimi.it>
2016-12-25 09:23:56 +00:00
Matthias Welwarsky cdba6ba0ad cortex_a: fix reset for SWD transport
Change b0698501b0 fixed
reset for i.MX6 and TI Sitara SoCs but broke reset for
cortex-a targets that use SWD. This patch is a work-
around that forces asserting SRST when SWD is used.

Change-Id: I7e39f2a469b9b4b2b74ad48ba49f2eeb58528921
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3641
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2016-12-08 13:03:49 +00:00
Steven Stallion c0e7ccbd87 semihosting: support fileio operation
This patch adds support for bridging semihosting to GDB's File-I/O
remote protocol extension. For the most part operations match up 1:1,
however some require a working area to complete successfully, namely
operations that devolve to read, stat, and gettimeofday.

A new command was added to enable support for fileio named `arm
semihosting_fileio`, which ensures that the default behavior remains
intact for those that prefer it.

Finally, redundant logging was removed from the target_arch_state
function; this permits ARM targets to quiesce log output when polling
for a fileio reply. This prevents filling the logs with halt/resume
messages when using semihosting fileio.

Change-Id: Ifbb864fc2373336a501cc0332675b887b552e1ee
Signed-off-by: Steven Stallion <stallion@squareup.com>
Reviewed-on: http://openocd.zylin.com/3566
Tested-by: jenkins
Reviewed-by: Steven Stallion <sstallion@gmail.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2016-12-08 12:32:58 +00:00
Evan Hunter 3b021e013f Cortex-R: Force usage of physical memory read/write since there is no MMU
Change-Id: I69d6e6301ab66744258fe650a76c7241bebe00a8
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/3203
Tested-by: jenkins
Reviewed-by: Girts Folkmanis <opensource@girts.me>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Jiri Kastner <cz172638@gmail.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2016-12-08 12:30:00 +00:00
Matthias Welwarsky 0a2f1b29e6 cortex_a: remove partnum magic from arp_examine and dbginit
Depending on the Debug implementation the "OS Lock" feature might be
implemented or not. It is not actually depending on the part number of the
implemented ARM core but on the DBGOSLSR.OSLM bits. This patch removes
querying the part number and implements proper parsing of OSLM. Result is
a more generic approach that will work out-of-box on more devices.

Change-Id: I79e052869c2f9af1d7fdedef42faddb7292e7332
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3213
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2016-12-08 12:25:35 +00:00
Matthias Welwarsky 0099430104 cortex_a/r/m: fix handling of un-examined cores
On multi-core systems, with some cores in power-down state, examination
will fail for these cores. Make sure assert- and deassert_reset functions
don't crash due to uninitialized variables.

Change-Id: I472f8d19af2cd3c770c05f3e57a31b35a863b687
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3552
Tested-by: jenkins
Reviewed-by: Jiri Kastner <cz172638@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
2016-11-04 21:25:11 +00:00
Andrey Smirnov d1bdcdcc8d semihosting armv7a: Add support for ARMv7-A
Add semihosting support for ARMv7-A based processors.

Tested with custom Vybrid VF610 based board
and Pandaboard ES (Rev. B1) board (Cortex-A9).

Change-Id: I6b896a61c1c6a1c5dcf89de834486f82dd6c80a2
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Tsung-Han Lin <tsunghan.tw@gmail.com>
Reviewed-on: http://openocd.zylin.com/2908
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
2016-11-04 21:21:50 +00:00
Marc Schink d0e763ac7e Remove FSF address from GPL notices
Also make GPL notices consistent according to:
https://www.gnu.org/licenses/gpl-howto.html

Change-Id: I84c9df40a774958a7ed91460c5d931cfab9f45ba
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/3488
Tested-by: jenkins
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2016-05-24 22:30:01 +01:00
Andreas Färber 0c8ec7c826 Fix spelling of ARM Cortex
It's Cortex-Xn, not Cortex Xn or cortex xn or cortex-xn or CORTEX-Xn
or CortexXn. Further it's Cortex-M0+, not M0plus.

Cf. http://www.arm.com/products/processors/index.php

Consistently write it the official way, so that it stops propagating.
Originally spotted in the documentation, it mainly affects code comments
but also Atmel SAM3/SAM4/SAMV, NiietCM4 and SiM3x flash driver output.

Found via:

  git grep -i "Cortex "
  git grep -i "Cortex-" | grep -v "Cortex-" | grep -v ".cpu"
  git grep -i "CortexM"

Change-Id: Ic7b6ca85253e027f6f0f751c628d1a2a391fe914
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3483
Tested-by: jenkins
Reviewed-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2016-05-20 21:38:03 +01:00
Andreas Fritiofson 8f26fa3c0f cortex_a: Rename APB-AP to CPU in memory contexts
Memory accesses are not made through the APB-AP, they are made through
the CPU (which happens to be controlled over the APB-AP). Rename all
irrelevant uses of the APB-AP term. And fix the long standing typo in
the function names...

Change-Id: Ide466fb2728930968bdba698f0dd9012cc9dbdf9
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3216
Tested-by: jenkins
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
2016-05-20 21:17:03 +01:00
Matthias Welwarsky b0698501b0 cortex_a: fix cortex_a_assert_reset() if srst_gates_jtag
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>
2016-05-08 09:22:09 +01:00
Tomas Vanek 8825804273 target: improve robustness of reset command
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>
2016-05-05 07:42:24 +01:00
Matthias Welwarsky b6c4a5db3e cortex_a: allow physical memory access through AHB-AP again
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>
2016-03-24 12:32:43 +00:00
Evan Hunter 9721e9dd71 Cortex-A/R: Fix Mask-ISR parsing
Remove needless error when not halted with wrong return.
Allow usage in any mode
Add error message for incorrect arguments

Change-Id: I3e94e159609351e503ed3f35760503079e3aa53c
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/3195
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2016-02-29 20:26:13 +00:00
Evan Hunter 4fef1d5bb0 Cortex-A/R: Add missing timeout for loop polling DSCR & fix timeout types
Change-Id: I345658cfdc8a34a98418727423ac6bd562e980f3
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/3201
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2016-02-29 20:23:54 +00:00
Evan Hunter 76b1983202 Cortex-A: Fix unicode quote in comment
Change-Id: I4747c113ab6c02199f078d9b4a4ec372d011fb2d
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/3200
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2016-01-12 23:22:35 +00:00
Matthias Welwarsky 5bee7f5b2c cortex_a: add 'dacrfixup' to cortex-a command group
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>
2015-12-29 21:43:45 +00:00
Matthias Welwarsky 45b897873d cortex_a: select APB-AP as the default AP
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>
2015-12-29 20:33:16 +00:00
Andreas Fritiofson d84c7d9196 cortex: Set default memaccess_tck only during examine
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>
2015-12-29 20:31:55 +00:00
Andreas Fritiofson 4a7bb931e3 arm_adi_v5: Remove all mem_ap_sel_* functions
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>
2015-12-29 20:31:19 +00:00
Andreas Fritiofson 00dbc185ee arm_adi_v5: Split ahbap_debugport_init
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>
2015-12-29 20:29:46 +00:00
Andreas Fritiofson 8a069b7b90 arm_adi_v5: Change mem_ap calls to take pointer to AP and not DAP
Change-Id: I8d3e42056aa5828cb917ca578a54b7d53846a150
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3149
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2015-12-29 20:29:14 +00:00
Andreas Fritiofson f9dfbf3ac7 cortex_a: Find debug base using the detected APB-AP and not AP 1
Change-Id: I6b98c3b4486903029e5a0d6d964bd5c48ff55926
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3148
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2015-12-29 20:28:45 +00:00
Andreas Fritiofson 557aa6dc5c arm_adi_v5: Convert the AP references from numbers to pointers
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>
2015-12-29 20:28:33 +00:00
Andreas Fritiofson cd12c423dc cortex_a: Call ahbap_debugport_init on the discovered AP and not 0
Change-Id: I76bb9bd800697776a375ab803402780c3c7bea35
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3145
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2015-12-29 20:27:42 +00:00
Andreas Fritiofson dc574aa1da target/arm: Remove usage of struct arm_jtag in ARMv7 targets
The Cortex-A and Cortex-M keeps an arm_jtag struct around just to be
able to pass a pointer to it to one common JTAG function which anyway
only uses the TAP field.

Refactor the function to take a TAP directly, remove the legacy struct
from cortex instances and store the TAP pointer only in the DAP.

Cortex-M makes a call to arm_jtag_setup_connection() with the struct
but the function does nothing useful for a Cortex-M target so remove
the call.

Change-Id: I3b33709ef55372ef14522ed4337e9f2e817ae3ab
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3142
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2015-12-29 20:27:01 +00:00
Patrick Stewart bf4cf76631 arm_debug: Support multiple APs per DAP and remove DAP from armv7* structs
Separate out the values from adiv5_dap that are associated with a specific AP into a new struct, so we can properly support multiple APs. Remove the DAP struct from the armv7* structs, because we can have multiple CPUs per DAP, and we shouldn't have multiple DAP structs. Tidy up a few places where ap_current is used incorrectly.

Change-Id: I0c6ef4b49cc86b140366347aaf9b76c07cbab0a8
Signed-off-by: Patrick Stewart <patstew@gmail.com>
Reviewed-on: http://openocd.zylin.com/2984
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2015-12-29 12:35:50 +00:00
Patrick Stewart 67f24e6734 cortex_m: Select an AP when accessing the DAP
Prepare to support multiple cortex-m cores on one DAP. Uses mem_ap_sel_*
functions and removes mem_ap_* functions. Adds a new debug_ap
parameter to the cortex_m (currently set to zero as in existing code).

Change-Id: I6926029d1e7bf44a42d453d1aff349bda824ba72
Signed-off-by: Patrick Stewart <patstew@gmail.com>
Reviewed-on: http://openocd.zylin.com/2983
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2015-12-29 12:35:04 +00:00
Alamy Liu f1dac60894 cortex-a: Fix "Detected core" number is always '0'
Problem
No matter what target->coreid is, it always shows
  Detected core 0 dbgbase: ...

In dap_lookup_cs_component(), it decreases the core index value to zero
in order to find the desired core.
The reference to coreidx is necessary considering "a device which has nested
ROM tables, with each core described in its own table." (by Paul Fertser).

Change-Id: I9b56d45d6edf6639e748a625ab27787f8e5a5776
Signed-off-by: Alamy Liu <alamy.liu@gmail.com>
Reviewed-on: http://openocd.zylin.com/2902
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2015-12-29 12:33:56 +00:00
Matthias Welwarsky 332023fb23 cortex_a: fix fast-mode memory reads
cortex_a_read_apb_ab_memory_fast() uses the wrong order of ITR and DSCR
writes when setting up the transfer. ARM DDI0406C says in C8.2 regarding
"Fast mode" operation to first switch to fast mode and then latch the
instruction in ITR. Current implementation first wrote ITR, causing
the instruction to be executed immediately, then switched to fast mode
without an instruction latched. Repeated reading of DTRTX didn't
execute LDC and thus replicated its current content into the whole buffer.

This patch uses the following, revised algorithm:
1) switch to non-blocking mode and issue the LDC for the first word
2) if more than one word is to be read:
 - switch to fast mode
 - latch the LDC instruction into ITR (it is _not_ executed)
 - issue (count-1) reads of DTRTX register, each read returns the current
   content of DTRTX and re-issues the latched instruction
 -> now the second-to-last word is in the buffer and the LDC for the last
    word has been issued.
3) wait for the last instruction to complete
4) switch back to non-blocking mode
5) Read DTRTX for the last (or: only) word and put it into the buffer

Change-Id: I44f5c585962ffa5af257c3d5a2a802c122b6b1e4
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3122
Tested-by: jenkins
Reviewed-by: Christopher Head <chead@zaber.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2015-12-01 06:52:01 +00:00
Matthias Welwarsky 8b140fd724 cortex_a: replace cortex_a_check_address function
When accessing memory through the ARM core, privilege levels and mmu
access permissions observed. Thus it depends on the current mode of the
ARM core whether an access is possible or not. the ARM in USR mode can
not access memory mapped to a higher privilege level. This means, if the
ARM core is halted while executing at PL0, the debugger would be
prevented from setting a breakpoint at an address with a higher privilege
level, e.g. in the OS kernel. This is not desirable.

cortex_a_check_address() tried to work around this by predicting if an
access would fail and switched the ARM core to SVC mode. However, the
prediction was based on hardcoded address ranges and only worked for
Linux and a 3G/1G user/kernel space split.

This patch changes the policy to always switch to SVC mode for memory
accesses. It introduces two functions cortex_a_prep_memaccess() and
cortex_a_post_memaccess() which bracket memory reads and writes. These
function encapsulate all actions necessary for preparation and cleanup.

Change-Id: I4ccdb5fd17eadeb2b66ae28caaf0ccd2d014eaa9
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3119
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
2015-11-30 10:07:54 +00:00
Matthias Welwarsky 3683f8cef0 cortex_a: rework mmu manipulation
when disabling the mmu to access physical addresses, normally the d-cache
must be disabled as well. Disabling the d-cache also requires a full
clean&invalidate. However, since all memory writes are treated as write-
through no-allocate and memory reads do not allocate cache lines,
effectively the d-cache state does not change at all. We can therefore
save the the d-cache disabling and flushing.

This patch also simplifies the function a bit.

Change-Id: Ia17c56a28f432156429cd4596107e3652b788e63
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3114
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2015-11-30 10:07:33 +00:00
Matthias Welwarsky 442e2506b1 cortex_a: force cache and tlb bypass when cpu is in debug state
for minimal impact on the hardware state, force all memory accesses to
bypass the caches and tlbs. This may actually be the default, but ARM
recommends in DDI0406C to set proper default values on debug init.

Change-Id: If5ac097b6ee725c047b1e86c2f90eabe16b98c7b
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3079
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
2015-11-30 10:07:10 +00:00
Matthias Welwarsky f24aa404ba cortex_a: Update instruction cache after setting a soft breakpoint
Call armv7a_l1_d_cache_flush_virt() before writing the breakpoint,
to make sure the d-cache is clean and invalid at the breakpoint
location down to PoC.

Call armv7a_l1_d_cache_inval_virt() after writing the breakpoint
again, so that d-cache will pick up the modified code.
Call armv7a_l1_i_cache_inval_virt() after writing the breakpoint
to memory to make the change visible to the CPU.

Change-Id: I24fc27058d99cb00d7f6002ccb623cab66b0d234
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3033
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
2015-11-30 05:43:03 +00:00
Matthias Welwarsky d17c11759f armv7a: rework automatic flush-on-write handling
The following changes are implemented:
- Clean&Invalidate the VA range to PoC *before* the write takes place
- Remove SMP handling since DCCIMVA instruction already maintains SMP
  coherence.
- Remove separate Invalidate step

Change-Id: I19fd3cc226d8ecf2937276fc63258b6a26e369a7
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3027
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
2015-11-30 05:41:58 +00:00
Matthias Welwarsky 8704e53665 armv7a: fix handling of inner caches
ARMv7 architecture allows up to 7 cache levels that are architecturally
visible, as opposed to "system caches", which are outside of the domain
defined by ARMv7 and require separate management. This patch enables
detection and identification of caches at all levels. It also implements
a new "flush-all" function that cleans & invalidates all cache levels to
the "Point of Coherence".

Change-Id: Ib77115d6044d39845907941c6f031e208f6e0aa5
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3024
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
2015-11-30 05:40:57 +00:00
Oleksij Rempel cd440bd32a add armv7a_cache handlers
This patch introduces, new command set and handlers for l1 and l2x caches.

Patch set 10 folded the following changes into this one:

Ib1a2a1fc1b929dc49532ac13a78e8eb796ab4415
If8d87a03281d0f4ad402909998e7834eb4837e79
I0749f129fa74e04f4e9c20d143a744f09ef750d8

Change-Id: I849f4d1f20610087885eeddefa81d976f77cf199
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/2800
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2015-11-30 05:39:40 +00:00
Oleksij Rempel 74592a8435 cortex_a: add cortex_a_[read|write]_memory_ahb
Change-Id: I39c457274e1714a8d42233f7fc490fb58f5cb38e
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/2798
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
2015-11-30 05:39:15 +00:00
Oleksij Rempel 2f3127e1ab cortex_a: add cortex_a_[read|write]_buffer
Change-Id: I82011822d913aa7228f5c6262b540156494bedfe
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/2797
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
2015-11-30 05:38:54 +00:00
Oleksij Rempel b55361d07f cortex_a: remove cache handlers from cortex_a_write_phys_memory
This was needed for ahb access

Change-Id: I638f45a276a593c08140b5d9d7480617aa85f096
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/2796
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
2015-11-30 05:38:24 +00:00
Oleksij Rempel f478107d02 cortex_a: remove ahb support for phys_memory access
Change-Id: I5b7c21c16e95cc1a3160e356d6e64f1f8c449e6e
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/2795
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2015-11-30 05:37:56 +00:00
Paul Fertser 60d5701590 target: cortex_a: add deinit_target handler to free memory
Tested with Valgrind accesing a Pandaboard.

Change-Id: I51bba044974ecfc4d418998816d44a8563264123
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3101
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
2015-11-13 06:55:26 +00:00
Paul Fertser 408213f554 target: cortex_a: do not create new register cache every reset
Commit 68101e67ac introduced a
regression which resulted for ever-growing registers list (as output
by "reg" command), its contents were doubled every reset (actually,
every examination).

Change-Id: Ie3409c795160a2fc840a5e8a892928df0bcc0c57
Reported-by: Daniele Emancipato <daniele12457@hotmail.com>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3100
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
2015-11-07 20:36:56 +00:00
Evan Hunter 987201c6dc Cortex A/R : Allow interrupt disable during single-step
Example usage:
	cortex_a maskisr on
	cortex_a maskisr off
	cortex_r maskisr on
	cortex_r maskisr off

Change-Id: I799288d9b848a06f561ba29ec1eb8e5eeace5685
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/2876
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
2015-11-07 20:36:13 +00:00
Paul Fertser 68101e67ac target/cortex_a: examination should be done every time it's asked for
It was observed on AM437x that after every reset the target's debug
regions are unpowered. To be able to properly communicate with the
target and perform cortex_a init debug access after a reset event the
examination need to be performed every time, not just on OpenOCD
start.

Change-Id: Idf272e127ee88341e806ee00df154eade573451d
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2723
Tested-by: jenkins
Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-04-24 14:47:16 +01:00
Paul Fertser 5387d616a3 Fix several format specifiers errors exposed by arm-none-eabi
Change-Id: I1fe5c5c0b22cc23deedcf13ad5183c957551a1b7
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2719
Tested-by: jenkins
2015-04-16 20:24:50 +01:00
Paul Fertser 13ac3d556c target/cortex_a: emit a clear error message when dbgbase can't be detected
In some cases (the most obvious are TI's SoCs) ROM table lacks entries
for the cores, so OpenOCD has no way to determine what debug base to
use. Due to an error fixed in ec9ccaa288 it wasn't handled properly,
and OpenOCD would continue to try using dbgbase = 0, which happened to
work for e.g. AM437x.

This patch adds a clear indication to the user that to access such a
target, dbgbase must be set manually in the config.

Reported by Felipe Balbi on IRC.

Change-Id: Id8533e708f44b76550eb8b659564f5f45717c298
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2603
Tested-by: jenkins
2015-04-14 12:44:55 +01:00
Uwe Kleine-König e968fd1895 Cortex-A: Don't flush the data/unified cache if MMU is off
When the SCTLR has C set but M unset (i.e. Caching on, but MMU off) the cache
if effectively off. So only flush the cache if MMU is on, otherwise stale
entries might be committed to memory.

Change-Id: Iaff8b6f25b7a41ba838b91d45684c98f99fc0b27
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-on: http://openocd.zylin.com/2429
Tested-by: jenkins
Reviewed-by: Christopher Head <chead@zaber.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Vladimir Svoboda <ze.vlad@gmail.com>
2015-04-14 11:47:48 +01:00
Paul Fertser e00a56bede target/cortex_a: remove dead assignment
Found by clang static checker.

Change-Id: I77b0dc18188328fdb28d07b9e5c52e06182d9e2b
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2561
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2015-03-09 06:34:01 +00:00
Christopher Head 0228f8e827 Cortex A: fix extra memory read and non-word sizes
Without this patch, to perform a memory read, OpenOCD first issues an
LDC instruction into DBGITR in Stall mode (thus executing the
instruction), then switches to Fast mode and reads from DBGDTRTX once
for each word to transfer.

At the very end of the transfer, the final Fast mode read of DBGDTRTX
has, as always, the side effect of re-issuing the LDC instruction. This
causes two problems:

(1) If the word immediately beyond the end of the requested region is
inaccessible, this spurious LDC will cause a fault. On a fast CPU, the
LDC will finish executing by the time the poll of DSCR takes place,
failing the entire memory read. On a slow CPU, the LDC might finish
executing later, leaving an unexpected and confusing sticky fault lying
around for the next operation to see.

(2) If the LDC succeeds, it will leave the loaded word in DBGDTRTX, thus
setting DBGDSCR.TXFULL=1. The cortex_a_read_apb_ab_memory routine
completes without consuming that last word, thus confusing the next
routine that tries to use DBGDTRTX (this may not have any visible effect
on some implementations, because writing to DBGDTRTXint when TXFULL=1 is
defined as Unpredictable, but I believe it caused a visible problem for
me).

With this patch, the bulk mem_ap_sel_read_buf_noincr is modified to omit
the last word of the block. The second-to-last read of DBGDTRTX by that
function will cause the issue of the LDC for the last word. After
switching back to Normal mode and waiting for that instruction to
finish, do a final read of DBGDTRTX to extract the last word into the
buffer, leaving TXFULL=0.

Without this patch, memory accesses are always expanded such that they
are aligned to the access size. With this patch, accesses are issued
exactly as ordered by the caller. The caller is expected to handle
fragments at the beginning and end of the transfer if the address is
unaligned and an unaligned access is not desired.

Without this patch, the DFAR and DFSR registers, which report the
location and status of data faults, are ignored while performing memory
accesses, which could cause problems debugging an OS page fault handler.
With this patch, DFAR and DFSR are preserved across memory accesses, and
DFSR is decoded in the event of a synchronous fault to provide the
caller with more information about the reason for failure.

Thanks to Boris Brezillon for the original patch whose ideas led to the
non-word access mechanism implemented here and to various code reviewers
for their comments.

Change-Id: I11ae7104fbe69a522efadefc705c9a217a7eef41
Signed-off-by: Christopher Head <chead@zaber.com>
Reviewed-on: http://openocd.zylin.com/2381
Tested-by: jenkins
Reviewed-by: Olivier Schonken <olivier.schonken@gmail.com>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2015-02-22 16:13:59 +00:00
Olivier Schonken 6e32887f91 cortex_a: Add Cortex-A5 identification
Add Cortex-A5 identification to ROM-table display, and also
to cortex_a_init_debug_access. This change is mostly cosmetic.

Change-Id: I7b1dd8755d70d45eb5f315aa1918d44a813b3cdf
Signed-off-by: Olivier Schonken <olivier.schonken@gmail.com>
Reviewed-on: http://openocd.zylin.com/2483
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2015-02-11 16:17:58 +00:00
Alexander Stein 1567caea2c cortex_a: Add support for A7 MPCore
A7 MPCore needs unlocking the debug registers same as with A15 MPCore.
Found out by hacking on the code.

Change-Id: I613cb4fb35007b85b4a9a401577b47768bc1a08b
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Reviewed-on: http://openocd.zylin.com/2344
Tested-by: jenkins
Reviewed-by: Kamal Dasu <kamal.dasu@gmail.com>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2015-01-10 00:57:09 +00:00
Kamal Dasu e519099ab7 cortex_a: Add support for A15 MPCore
Added Cortex-A15 support for DAP AHB-AP init code as per ADI V5 spec.
Also added changes to make the APB MEM-AP to work with A15.
Made the the cortex_a target code  generic to work with A8, A9
and A15 single core or multicore implementation. Added armv7a code
for os_border calculation to work for known A8, A9 and A15
platforms based on the ARM DDI 0344H, ARM DDI 0407F, ARM DDI 0406C
ARMV7A architecture docs.

Change-Id: Ib2803ab62588bf40f1ae4b9192b619af31525a1a
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Reviewed-on: http://openocd.zylin.com/1601
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2015-01-10 00:56:45 +00:00
Paul Fertser ec9ccaa288 arm_adi_v5: make dap_lookup_cs_component() traverse subtables and handle multicore
When looking for a debug base address of a core, one should search
through all the ROM tables, not just the top-level one.

This code also assumes that the first found entry (in a depth-first
search) will correspond to core 0, the second to core 1 etc.

The patch is supposed to be an alternative implementation of
http://openocd.zylin.com/#/c/1313/.

Change-Id: Ifc88971a02fe3d9c00d9bf72a822ade5804d4e09
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/1920
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2014-10-06 11:54:54 +00:00
Kamal Dasu 59c2239bfd cortex_a: target implementation renames cortex_a8 to cortex_a
A previous commit changes the target name used by tcl scripts.
commit d9ba56c295
target: rename cortex_a8 to cortex_a

The current change renames target functions and definitions in the
implementation from cortex_a8 to cortex_a.
This prepares the implementation to support Cortex-A8, A9, A15-MPCore
in one place.

Change-Id: I73b5a38a92c12ba5bd3b806fbbb664817575a6d7
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Reviewed-on: http://openocd.zylin.com/1599
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2014-07-03 21:45:04 +00:00
Seth LaForge 7b6158db4e cortex_a: fix lockup when writing to high address
On a processor with caches, when you write data to memory OpenOCD invalidates
the cache lines affected. If you write to an address within 64 bytes of
UINT32_MAX, then the for loop control variable wrapped around resulting in an
infinite loop. Change control variable to be an offset from the address
involved. We should never be asked to write 2^32 bytes, so wraparound should
not be a problem.

Change-Id: Ibfe654113eff71684862ff651e7a1cd05ccc6760
Signed-off-by: Seth LaForge <sethml@google.com>
Reviewed-on: http://openocd.zylin.com/2126
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2014-06-22 08:23:53 +00:00
Paul Fertser ee54f7e9f0 target/cortex_a: check gdb_service before dereferencing in update_halt_gdb
If gdb was disconnected by the moment the target entered halted state,
update_halt_gdb would segfault.

Change-Id: I67477e9199c1df097be83a49e38602f975c083f5
Reported-by: Younes REGAIEG <younes.regaieg@imag.fr>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2098
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2014-04-14 18:12:30 +00:00
Kamal Dasu 7e1dfcbe2d cortex_a: Fix endianess issues in cortex_a8_*_apb_ab_memory
Make the APB-AB memory read routines handle endianess order
when running on big endian host. cortex_a8_read_apb_ab_memory
is also called by cortex_a8_write_apb_ab_memory and was breaking
both APB-AB read and write functions. Also fixed bug in write
function in calculating the offset of end of buffer data. The
change aslo fixes the read issues with all combinations of
aligned unaligned memory access found by 'test_mem_access' cmd.

Tested with target "test_mem_access 4000", also size 1-9,
'mdb/h/w' 'mwb/h/w' cmds and equivalent gdb 'x' 'set' cmds.

Change-Id: Ia927c60c4837617f5342a9beb6fdab1f061855fe
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Reviewed-on: http://openocd.zylin.com/1781
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
2014-03-07 18:53:35 +00:00
Paul Fertser ddef36905c cortex_a: do not try to use MMU for translation if it wasn't enabled on target stop
On a target where AHB AP memory access is unavailable, care should be
taken to avoid treating addresses as virtual if the MMU was disabled
at the time the target was stopped.

Without this it's impossible to peek memory with Gdb when debugging
e.g. a bootloader because cortex_a8_read_memory() unconditionally
tried (and failed because of a sanity check in cortex_a8_mmu_modify)
to enable MMU.

Change-Id: Id7c63f4912920fb71a6104226ec6428d18c96a56
Reported-by: mbm@openwrt.org
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/1787
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2014-02-06 22:21:57 +00:00
Andreas Fritiofson bd0fbef5c8 adi_v5: Remove unnecessary MEM-AP access functions
It's far nicer to pass a size parameter than to split the calls to
separate wrappers which are combined to a single function anyway.

Change-Id: I716741ebf916f6f8e9358a31c8f4fe761107c82f
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/1847
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2014-01-11 22:22:18 +00:00
Paul Fertser f132fcf636 Clean up many C99 integer types format specifiers
This eliminates most of the warnings reported when building for
arm-none-eabi (newlib).

Hsiangkai, there're many similar warnings left in your nds32 files, I
didn't have the nerve to clean them all, probably you could pick it
up.

Change-Id: Id3bbe2ed2e3f1396290e55bea4c45068165a4810
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/1674
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2013-10-31 20:40:03 +00:00
Spencer Oliver 32ac9c0144 target: remove unimplemented target_request_data implementations
Change-Id: Ia9afa83752d17f0f56bdf3bd81f5c69d108aa5e9
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1537
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2013-09-08 16:12:41 +00:00
Spencer Oliver 9e02c99d7b target: remove unimplemented soft_reset_halt implementations
Let the default handler issue an unsupported warning rather than using
empty handler routines that may/may not issue a unsupported warning.

Change-Id: Iafe3e45146981a4cfae39771c3ab7370ac86da48
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1535
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-by: Hsiangkai Wang <hsiangkai@gmail.com>
2013-09-08 16:12:20 +00:00
Spencer Oliver 3a8a6e5c3e cortex_a: remove memory leak on failure
If mem_ap_sel_write_atomic_u32 fails then tmp_buff may not be released.
Detected by clang.

Change-Id: I3d5416bd47d0eea61f61ec02ac5e43c82f114108
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1433
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2013-06-12 14:41:43 +00:00
Spencer Oliver 08d4411b59 update files to correct FSF address
Change-Id: I429f7fd51f77b0e7c86d7a7f110ca31afd76c173
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1426
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
2013-06-05 19:52:42 +00:00
Andreas Fritiofson 434eca2315 cortex_a: fix FTBS on ARM due to alignment issues
Native compilation on RaspberryPi with
gcc (Debian 4.6.3-1) 4.6.3
Target: arm-linux-gnueabi

ends with error:

cortex_a.c: In function 'cortex_a8_read_apb_ab_memory':
cortex_a.c:2063:40: error: cast increases required alignment of target type [-Werror=cast-align]
cc1: all warnings being treated as errors

Also check for malloc failure.

This patch is compile-tested only.

Change-Id: I580c505424d03ac3a565de54182db22277c52ac1
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/1369
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2013-06-03 11:06:38 +00:00
Paul Fertser 2aada5b8d9 targets: fix target_type name for Cortex-A targets
Commit d9ba56c295 did a bunch of
renaming of cortex_a8 to cortex_a, including the names in config
files. However that introduced a regression as the name in target_type
struct remained unchanged.

This adds the last missing bit: actual renaming of the target name as
understood by OpenOCD.

Also change the (hopefully) last instance of using it in the supplied
config files, namely from imx6.cfg.

Change-Id: Ib9289fc6d946630133ec6e36c20015ccb50acf61
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/1420
Tested-by: jenkins
Reviewed-by: Chris Johns <chrisj@rtems.org>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2013-05-28 08:48:45 +00:00
Spencer Oliver d9ba56c295 target: rename cortex_a8 to cortex_a
Rename cortex_a8 target to use a more correct cortex_a name.
This also adds a deprecated_name var so that older scripts issue a warning
to update the target name.

cfg files have also been updated to the new target name.

Change-Id: I0eb1429c9281321efeb444b27a662a941a2ab67f
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1130
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
2013-04-28 08:56:04 +00:00
Spencer Oliver 9c450c704c target: fix broken Cortex-R4 support
This regression was caused due to the recent addition of R4 support and
the removal of the bulk_write_memory handler.

Change-Id: Ide692737f235c0e9906becb6f3502ba52c5907aa
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1246
Tested-by: jenkins
2013-03-15 18:00:49 +00:00
Andreas Fritiofson 4315142ea0 target: Add default implementation of bulk_write_memory
Remove dummy implementations from all targets except arm7_9 and mips, which
are the only ones with real implementations. Replace with a single default
implementation simply calling target_write_memory().

Change-Id: I9228104240bc0b50661be20bc7909713ccda2164
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/1213
Tested-by: jenkins
Reviewed-by: Øyvind Harboe <oyvindharboe@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2013-03-15 15:56:25 +00:00
Evan Hunter 13288a44be arch: Added ARMv7R and Cortex-R4 support
Rewrite to merge Cortex-A and Cortex-R code

Change-Id: I4541557980d43d1bba6e8d1bfeb04f536ed25a00
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/358
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2013-03-15 15:54:05 +00:00
Evan Hunter 4e47519f6c adi_v5: search for Debug and Memory AP support
Adds dap_find_ap() function.

Change-Id: I6643025624009b12d4936de67a605da52c07be49
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/909
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2013-03-15 15:53:36 +00:00
Evan Hunter 927e53f8d5 cortex_a : optimize apb read/write access.
Rewrite: Adheres more closely to 'fast read/write' examples in TRM.
up to 50x faster

Change-Id: Ieb4da57d8367628f3e7306827a5b1f0ab550e641
Signed-off-by: Evan Hunter <ehunter@broadcom.com>
Reviewed-on: http://openocd.zylin.com/903
Tested-by: jenkins
Reviewed-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
2013-03-15 15:50:42 +00:00