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* basic ARM semihosting supportNicolas Pitre2009-12-031-0/+11
| | | | | | | | | | | | | | | | | | | | Semihosting enables code running on an ARM target to use the I/O facilities on the host computer. The target application must be linked against a library that forwards operation requests by using the SVC instruction that is trapped at the Supervisor Call vector by the debugger. The "hosted" library version provided with CodeSourcery's Sourcery G++ Lite for ARM EABI is one example. This is currently available for ARM9 processors, but any ARM variant should be able to support this with little additional work. Tested using binaries compiled with Sourcery G++ Lite 2009q1-161 and ARM RVCT 3.0. [dbrownell@users.sourceforge.net: doc tweaks, NEWS] Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Tcl and doc: update to match new 'arm mcr ...' etcDavid Brownell2009-12-011-1/+19
| | | | | | Make them match the C code. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* XScale: initial PXA3xx supportMarek Vasut2009-11-291-0/+1
| | | | | | [dbrownell@users.sourceforge.net: user's guide; variant param is optional] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target: groundwork for "reset-assert" eventDavid Brownell2009-11-271-4/+43
| | | | | | | | | This defines a "reset-assert" event and a supporting utility routine, and documents both how targets should implement it and how config scripts should use it. Core-specific updates are needed to make this work. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* support for scripts in $HOME/.openocdAndreas Fritiofson2009-11-241-8/+14
| | | | | | | | | | | | | Add $HOME/.openocd as the first default script search directory, allowing the user to override the standard scripts. Update the user guide with information on where OpenOCD expects to find configuration files and scripts. Also fixed some minor formatting issues. Add entry to NEWS as well. Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com> Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* arm926ejs: retire cp15 commands, handled by mrc/mcr.Øyvind Harboe2009-11-231-7/+0
| | | | Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* ARM7/ARM9: remove old "debug commands"David Brownell2009-11-201-52/+35
| | | | | | | | | | | | | | | Remove two commands that were documented as "debug commands" and where "you probably don't want to use this". We never intended to support them, and at least one problem report boiled down to using this when it shouldn't have been used. Update the docs on the existing register commands to talk a bit more about register access and cache behavior. (Those debug commands existed largely to *bypass* the cache.) And fix some minor doc goofs that snuck in with recent changes, renaming "armv4_5" as "arm" and "arm9tdmi" as "arm9". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* document new flash syntaxZachary T Welch2009-11-191-2/+6
| | | | | Updates the user documentation with the new syntax for defining flash and nand banks.
* ARMv7A: use standard disassemblerDavid Brownell2009-11-161-18/+8
| | | | | | We no longer need v7A-specific code for this. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: "armv4_5" command prefix becomes "arm"David Brownell2009-11-161-8/+6
| | | | | | | | | | Rename the "armv4_5" command prefix to straight "arm" so it makes more sense for newer cores. Add a simple compatibility script. Make sure all the commands give the same "not an ARM" diagnostic message (and fail properly) when called against non-ARM targets. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Add 'nand verify' commandZachary T Welch2009-11-161-0/+26
| | | | | | | | | | | Add the 'nand verify' command to perform a dump and fake-write simultaneously, checking the read bits against those generated by the write process. Appropriate user documentation for this command has been added to the user guide as well. The algorithm presently makes a relatively naive comparison. Some chips that use ECC may not verify correctly using this implementation, but the new documentation provides details about this limitation.
* ETM: start support for ETMv2+David Brownell2009-11-121-3/+15
| | | | | | | | | | | | | | | | | ARM11 and newer cores include updated ETM modules. Recognize their version codes and some key config differences. Sanity checked on an OMAP2, with an ETM11RV r0p1 (ETMv3.1). This still handles only scan chain 6, with at most 128 registers. Newer cores (mostly, Cortex) will need to use the DAP instead. Note that the newer ETM modules don't quite fit the quirky config model of the older ones ... having more port widths is easy, but the modes aren't the same. That still needs to change. Fix a curious bug ... how did the register cache NOT get saved?? Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* parport: add support for the jtag_khz command.Jonas Horberg2009-11-121-0/+36
| | | | | | | | | | | Add the khz and speed_div functions to the parport interface driver. Add the parport_toggling_time function that tells the parport driver how long (in nanoseconds) it takes for the hardware to toggle TCK. [dbrownell@users.sourceforge.net: tweak doc for clarity, mention multimeter, and whitespace fixes] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target: MMU-aware init for memory read/writeDavid Brownell2009-11-101-5/+9
| | | | | | | | | | | | | | | | | | Start switching MMU handling over to a more sensible scheme. Having an mmu() method enables MMU-aware behaviors. Not having one kicks in simpler ones, with no distinction between virtual and physical addresses. Currently only a handful of targets have methods to read/write physical memory: just arm720, arm920, and arm926. They should all initialize OK now, but the arm*20 parts don't do the "extra" stuff arm926 does (which should arguably be target-generic). Also simplify how target_init() loops over all targets by making it be a normal "for" loop, instead of scattering its three parts to the four winds. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM11: remove old mrc/mcr commandsØyvind Harboe2009-11-101-19/+1
| | | | | | Switch to new commands in config scripts Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* finish removing deprecated/obsolete commandsDavid Brownell2009-11-091-86/+0
| | | | | | | | | | | | | | | | | | | | It's been about a year since these were deprecated and, in most cases, removed. There's no point in carrying that documentation, or backwards compatibility for "jtag_device" and "jtag_speed", around forever. (Or a few remnants of obsolete code...) Removed a few obsolete uses of "jtag_speed": - The Calao stuff hasn't worked since July 2008. (Those Atmel targets need to work with a 32KHz core clock after reset until board-specific init-reset code sets up the PLL and enables a faster JTAg clock.) - Parport speed controls don't actually work (tops out at about 1 MHz on typical HW). - In general, speed controls need to live in board.cfg files (or sometimes target.cfg files), not interface.cfg ... Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* User's Guide: Flash/NAND doc tweaksDavid Brownell2009-11-091-3/+12
| | | | | | | | Rename the "Drivers, Options, and Commands" sections to be just "Driver List" matching the earlier reference. Add an example of parallel CFI flash. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* User's Guide: bugfix global state infoDavid Brownell2009-11-091-3/+1
| | | | | | | | | The "$ocd_HOSTOS" variable was wrongly documented. Fix its documentation, and its value on Linux. Shrink a few of the too-long lines. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target.cfg: remove "-work-area-virt 0"David Brownell2009-11-081-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The semantics of "-work-area-virt 0" (or phys) changed with the patch to require specifying physical or virtrual work area addresses. Specifying zero was previously a NOP. Now it means that address zero is valid. This patch addresses three related issues: - MMU-less processors should never specify work-area-virt; remove those specifications. Such processors include ARM7TDMI, Cortex-M3, and ARM966. - MMU-equipped processors *can* specify work-area-virt... but zero won't be appropriate, except in mischievous contexts (which hide null pointer exceptions). Remove those specs from those processors too. If any of those mappings is valid, someone will need to submit a patch adding it ... along with a comment saying what OS provides the mapping, and in which context. Example, say "works with Linux 2.6.30+, in kernel mode". (Note that ARM Linux doesn't map kernel memory to zero ...) - Clarify docs on that "-virt" and other work area stuff. Seems to me work-area-virt is quite problematic; not every operating system provides such static mappings; if they do, they're not in every MMU context... Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* User's Guide: TAP setup tweakageDavid Brownell2009-11-051-6/+14
| | | | | | | | | | | Highlight that the "-expected-id" probably comes from vendor documentation, and that it *should* be used where possible. Don't use ircapture/irmask in examples, to help discourage use of those params when they're not required. Explain a bit better about why/when those params get used. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* User's Guide: more init info, autoprobing, etcDavid Brownell2009-11-011-6/+93
| | | | | | | | | | | | | Mention the autoprobing as a tool that may be useful when figuring out how to set up; and add a section showing how to use that mechanism (with an example). Strengthen the differences between config and run stage descriptions; add a section for the latter. Mention Dragonite. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: rename "arm9tdmi vector_catch" to "arm9 ..."David Brownell2009-10-251-9/+4
| | | | | | And update doc accordingly. That EmbeddedICE register was introduced for ARM9TDMI and then carried forward into most new chips that use EmbeddedICE.
* arm9tdmi vector_catch: reserved means "don't use"David Brownell2009-10-231-1/+3
| | | | | | | Bit 5 shouldn't be used. Remove all support for modifying it. Matches the exception vector table, of course ... more than one bootloader uses that non-vector to help distinguish valid boot images from random garbage in flash.
* ETM: rename registers, doc tweaksDavid Brownell2009-10-221-2/+17
| | | | | | | | | | | | | | | The register names are perversely not documented as zero-indexed, so rename them to match that convention. Also switch to lowercase suffixes and infix numbering, matching ETB and EmbeddedICE usage. Update docs to be a bit more accurate, especially regarding what the "trigger" event can cause; and to split the issues into a few more paragraphs, for clarity. Make "configure" helptext point out that "oocd_trace" is prototype hardware, not anything "real". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* mww_phys retired. Replaced by generic mww phys in target.cØyvind Harboe2009-10-211-51/+0
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* virt2phys is now implemented by target.c globally, retire target specific ↵Øyvind Harboe2009-10-211-15/+0
| | | | documentation.
* Added target_read/write_phys_memory() fn's. mdX/mwX commands updated to ↵Øyvind Harboe2009-10-211-6/+10
| | | | support phys flag to specify bypassing of MMU.
* XSVF: use svf_add_statemove()David Brownell2009-10-201-2/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | XSVF improvements: - Layer parts of XSVF directly over SVF, calling svf_add_statemove() instead of expecting jtag_add_statemove() to conform to the SVF/XSVF requirements (which it doesn't). This should improve XSTATE handling a lot; it removes most users of jtag_add_statemove(), and the comments about how it should really do what svf_add_statemove() does. - Update XSTATE logic to be a closer match to the XSVF spec. The main open issue here is (still) that this implementation doesn't know how to build and submit paths from single-state transitions ... but now it will report that error case. - Update the User's Guide to mention the two utility scripts for working with XSVF, and to mention the five extension opcodes. Handling of state transition paths is, overall, still a mess. I think they should all be specified as paths not unlike SVF uses, and compiled to the bitstrings later ... so that we can actually make sense of the paths. (And see the extra clocks, detours through RUN, etc.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Added 'unlock' option to flash write_imageØyvind Harboe2009-10-201-3/+4
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* Doc: jtag_init must validate scan chain tooDavid Brownell2009-10-191-0/+5
| | | | | Same requirement as like init_reset, and for the same reason: we need to start with a known and working state.
* doc updates to match "help" betterDavid Brownell2009-10-141-7/+35
| | | | | | | | | | | | | | | | | | | This makes the documentation a closer match to "help" output: - "pathmove" somehow was not documented in the User's Guide - "jtag_nsrst_assert_width" and "jtag_ntrst_assert_width" are new; both needed descriptions. - Removed two undocumented and fairly useless script mechanisms: * production/production_info/production_test ... using it, requires replacing everything; so having it adds no value. * cpu ... way out of date; hopeless to keep that current Note that anyone using that "production" stuff already defines their own procedures, and can keep using them with no change. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Retired gdb_attach. gdb-detach event covers this functionality.Øyvind Harboe2009-10-131-5/+0
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* arm11 burst writes are now only enabled for writes larger than 1 word. ↵Øyvind Harboe2009-10-121-1/+5
| | | | Single word writes are frequently used from reset init scripts to non-memory peripherals.
* Retire arm11 no_increment. Intended for future expansion to read/write to ↵Øyvind Harboe2009-10-121-7/+0
| | | | ports. New arm11 commands would have to be added to exploit it.
* tweak new "translating ..." textDavid Brownell2009-10-091-16/+18
| | | | | | | | Fix formatting and layout bugs in the new "translating configuration files" bit. Make it a section within the chapter about config files. Add a crossreference. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* add documentation about reset customizationDavid Brownell2009-10-091-12/+108
| | | | | | | | | | We added two overridable procedures; document them, and the two jtag arp_* operations they necessarily expose. Update the comment about the jtag_init_reset() routine; it's been obsolete for as long as it's had SRST support. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Added tip in documentation on how to translate quirky syntaxØyvind Harboe2009-10-091-1/+41
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* Houston, we have Mirror!David Brownell2009-10-071-0/+6
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* Change most in-tree references from SVN to GIT.dbrownell2009-10-081-26/+19
| | | | | | | | | Also, talk about "mainline" not "trunk". The release.txt and release.sh files need more updates. git-svn-id: svn://svn.berlios.de/openocd/trunk@2825 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Remove pointless "target library" chapter.dbrownell2009-10-071-36/+84
| | | | | | | | | It had a very little bit of content; move that to the more extensive chapter on config file guidelines, and give more current "ls" output to show the available library code. git-svn-id: svn://svn.berlios.de/openocd/trunk@2820 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Note bug in handling of variables through command line parameters.dbrownell2009-10-071-0/+8
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2819 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Updates for "reset_config":dbrownell2009-10-071-6/+22
| | | | | | | | | | | - revert to previous default: don't talk JTAG during SRST - add "srst_nogates" flag, the converse of "srst_gates_jtag" - with no args, display the current configuration And update the User's Guide text with bullet lists to be a bit more clear. git-svn-id: svn://svn.berlios.de/openocd/trunk@2818 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Add a new JTAG "setup" event; use for better DaVinci ICEpick support.dbrownell2009-10-051-6/+22
| | | | | | | | | | | | | | | | | The model is that this fires after scanchain verification, when it's safe to call "jtag tapenable $TAPNAME". So it will fire as part of non-error paths of "init" and "reset" command processing. However it will *NOT* trigger during "jtag_reset" processing, which skips all scan chain verification, or after verification errors. ALSO: - switch DaVinci chips to use this new mechanism - log TAP activation/deactivation, since their IDCODEs aren't verified - unify "enum jtag_event" scripted event notifications - remove duplicative JTAG_TAP_EVENT_POST_RESET git-svn-id: svn://svn.berlios.de/openocd/trunk@2800 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Minor ETB and ETM bugfixes and doc updatesdbrownell2009-10-021-5/+29
| | | | | | | | | | | | | | | | | | | | | - ETB * report _actual_ hardware status, not just expected status * add a missing diagnostic on a potential ETB setup error * prefix any diagnostics with "ETB" - ETM * make "etm status" show ETM hardware status too, instead of just traceport status (which previously was fake, sigh) - Docs * flesh out "etm tracemode" docs a bit * clarify "etm status" ... previously it was traceport status * explain "etm trigger_percent" as a *traceport* option ETM+ETB tracing still isn't behaving, but now I can see that part of the reason is that the ETB turns itself off almost immediately after being enabled, and before collecting any data. git-svn-id: svn://svn.berlios.de/openocd/trunk@2790 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* ARM11 command handling fixesdbrownell2009-09-291-1/+14
| | | | | | | | | | | - Commands were supposed to have been "arm11 memwrite ..." not "memwrite ..." - Get rid of obfuscatory macros - Re-alphabetize - Add docs for "arm11 vcr" git-svn-id: svn://svn.berlios.de/openocd/trunk@2776 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Make "-expected-id 0" suppress warnings; not unlike it used to do.dbrownell2009-09-291-3/+5
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2775 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Doc updates: add section on target software changes, minor fixesdbrownell2009-09-291-5/+53
| | | | git-svn-id: svn://svn.berlios.de/openocd/trunk@2774 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Streamline Capture-IR handling and integrity test.dbrownell2009-09-261-10/+12
| | | | | | | | | | | | | | | | | | | | Change the handling of the "-ircapture" and "-irmask" parameters to be slightly more sensible, given that the JTAG spec describes what is required, and that we already require that conformance in one place. IR scan returns some bitstring with LSBs "01". - First, provide and use default values that satisfy the IEEE spec. Existing TAP configs will override the defaults, but those parms are no longer required. - Second, warn if any TAP gets set up to violate the JTAG spec. It's likely a bug, but maybe not; else this should be an error. Improve the related diagnostics to say which TAP is affected. And associated minor fixes/cleanups to comments and diagnostics. git-svn-id: svn://svn.berlios.de/openocd/trunk@2758 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* When setting up an ETM, cache its ETM_CONFIG register. Thendbrownell2009-09-231-2/+38
| | | | | | | | | | | | | | | | | | | | | | | | | only expose the registers which are actually present. They could be missing for two basic reasons: - This version might not support them at all; e.g. ETMv1.1 doesn't have some control/status registers. (My sample of ARM9 boards shows all with ETMv1.3 support, FWIW.) - The configuration on this chip may not populate as many registers as possible; e.g. only two data value comparators instead of eight. Includes a bugfix in the "etm info" command: only one of the two registers is missing on older silicon, so show the first one before bailing. Update ETM usage docs to explain that those registers need to be written to configure what is traced, and that some ETM configs are not yet handled. Also, give some examples of the kinds of constrained trace which could be arranged. git-svn-id: svn://svn.berlios.de/openocd/trunk@2752 b42882b7-edfa-0310-969c-e2dbd0fdcd60
* Make it easier to erase or protect through to the enddbrownell2009-09-221-6/+12
| | | | | | | | | | | | of a (NOR) flash chip: allow passing "last" as an alias for the number of the last sector. Improve several aspects of error checking while we're at it. From: Johnny Halfmoon <jhalfmoon@milksnot.com> git-svn-id: svn://svn.berlios.de/openocd/trunk@2746 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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