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* ARM720: help/usage updatesDavid Brownell2010-01-071-2/+6
| | | | | | | | | | Deprecate the "pass an instruction opcode" flavor of cp15 access in favor of the "arm mcr ..." and "arm mrc ..." commands, which offer fewer ways to break things. Use the same EBNF syntax in the code as for the user's guide. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM11: help/usage updatesDavid Brownell2010-01-071-11/+13
| | | | | | | | | | | | | | | | | Usage syntax messages have the same EBNF as the User's Guide; there should be no angle brackets in either place. Uupdate some helptext to be more accurate. Fix the User's Guide in a few places to be more consistent (mostly to use brackets not parentheses) and to recognize that parameter may be entirely optional (in which case the command just displays output, and changes nothing). Also reference NXP, not Philips, for LPC chips. Don't use "&function"; functions are like arrays, their address is their name. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM7/ARM9: help/usage updatesDavid Brownell2010-01-071-11/+21
| | | | | | | | | | | | | | | | | | Provide helptext which was sometimes missing; update some of it to be more accurate. Usage syntax messages have the same EBNF as the User's Guide; there should be no angle brackets in either place. Fix the User's Guide in a few places to be more consistent (mostly to use brackets not parentheses) and to recognize that parameter may be entirely optional (in which case the command just displays output, and changes nothing). Also reference NXP, not Philips, for LPC chips. Don't use "&function"; functions are like arrays, their address is their name. Shrink some overlong lines. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARMv7: help/usage updatesDavid Brownell2010-01-071-7/+9
| | | | | | | | | | | | | | | | | | Provide helptext which was sometimes missing; update some of it to be more accurate. Usage syntax messages have the same EBNF as the User's Guide; there should be no angle brackets in either place. Don't use "&function"; functions are like arrays, their address is their name. Shrink some overlong lines, remove some empties. Add a couple comments about things that should change: those extra TCK cycles for MEM-AP reads are in the wrong place (that might explain some problems we've seen); the DAP command tables should be shared, not copied. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* streamline and document helptext mode displaysDavid Brownell2010-01-021-3/+10
| | | | | | | | | | | | | | | | | | | Most commands are usable only at runtime; so don't bother saying that, it's noise. Moreover, tokens like EXEC are cryptic. Be more clear: highlight only the commands which may (also) be used during the config stage, thus matching the docs more closely. There are - Configuration commands (per documentation) - And also some commands that valid at *any* time. Update the docs to note that "help" now shows this mode info. This also highlighted a few mistakes in command configuration, mostly commands listed as "valid at any time" which shouldn't have been. This just fixes ones I noted when sanity testing. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* User's Guide: warn about the forumDavid Brownell2009-12-311-1/+5
| | | | | | Namely, that developers don't hang out; it's a users-only club. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* whitespace cleanup, mostly for docsAntonio Borneo2009-12-304-15/+15
| | | | | | | | Remove useless space/tab at end of lines. Remove spaces in indentation and replace with tab. Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Fix Luminary FT2232 layout docs/configsDavid Brownell2009-12-281-5/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Most of this patch updates documentation and comments for various Luminary boards, supporting two bug fixes by helping to make sense of the current mess: - Recent rev C lm3s811 eval boards didn't work. They must use the ICDI layout, which sets up some signals that the older boards didn't need. This is actually safe and appropriate for *all* recent boards ... so just make "luminary.cfg" use the ICDI layout. - "luminary-lm3s811.cfg", was previously unusable! No VID/PID; and the wrong vendor string. Make it work, but reserve it for older boards where the ICDI layout is wrong. - Default the LM3748 eval board to "luminary.cfg", like the other boards. If someone uses an external JTAG adapter, all boards will use the same workaround (override that default). The difference between the two FT2232 layouts is that eventually the EVB layout will fail cleanly when asked to enable SWO trace, but the ICDI layout will as cleanly be able to enable it. Folk using "luminary.cfg" with Rev B boards won't see anything going wrong until SWO support is (someday) added. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* NOR: make flash_write_unlock() pad to sector endDavid Brownell2009-12-271-2/+23
| | | | | | | | | | | | | | Resolve a regression when using newish automagic "write_image" modes, by always padding to the end of affected sectors. Also document some issues associated with those automagic options, in the User's Guide and also some related code comments. We might need similar padding at the *beginning* of some sectors, but this is a minimalist fix for the problems which have currently been reported (plus doc updates). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Driver for USB-JTAG, Altera USB-Blaster and compatiblesCatalin Patulea2009-12-261-0/+59
| | | | | | | The 10-pin JTAG layout used with these adapters is used by a variety of platforms including AVR. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* User's Guide: update GDB infoDavid Brownell2009-12-261-2/+35
| | | | | Advise leaving background polling enabled; fix broken URL; add simple program startup example.
* AT91SAM9 NAND flash driver.Dean Glazeski2009-12-191-0/+35
| | | | | | | | | | This creates the TCL interface for configuring an AT91SAM9 NAND flash controller and implements the necessary functions to correctly work with a NAND flash device connected to the chip. This includes updates to the driver list and the Makefile.am to support building the driver and also houses the documentation update in openocd.texi. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ETM: add "etm trigger_debug" commandDavid Brownell2009-12-191-0/+11
| | | | | | | | | | | | | | | | In conjunction with manual register setup, this lets the ETM trigger cause entry to debug state. It should make it easier to test and bugfix the ETM code, by enabling non-trace usage and isolating bugs specific to thef ETM support. (One current issue being that trace data collection using the ETB doesn't yet behave.) For example, many ARM9 cores with an ETM should be able to implement four more (simple) breakpoints and two more (simple) watchpoints than the EmbeddedICE supports. Or, they should be able to support complex breakpoints, incorporating ETM sequencer, counters, and/or subroutine entry/exit criteria int criteria used to trigger debug entry. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ETM trigger_percent becomes an ETB commandDavid Brownell2009-12-191-22/+22
| | | | | | | | This command was misplaced; it's not generic to all traceport drivers, only the ETB supports this kind of configuration. So move it, and update the relevant documentation. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* JTAG: shrink "scan_chain" outputDavid Brownell2009-12-161-7/+7
| | | | | | | | | | Tweak the "scan_chain" output by removing column separators. Also remove the "current instruction" state ... which changes constantly. Now its style resembles the "targets" output, and can even fit on one line in standard terminals and in the PDF docs. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target: add basic dsp563xx supportmkdorg@users.sourceforge.net2009-12-151-0/+2
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* jtag: add '-ignore-version' optionDavid Brownell2009-12-141-0/+6
| | | | | | | | | | Add a "-ignore-version" to "jtag newtap" which makes the IDCODE comparison logic optionally ignore version differences. Update the "scan_chain" command to illustrate this by showing the "*" character instead of the (ignored) version nibble. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: list number of HW breakpoints/watchpointsDavid Brownell2009-12-071-7/+37
| | | | | | | | | | | | | | | When starting up, say how many hardware breakpoints and watchpoints are available on various targets. This makes it easier to tell GDB how many of those resources exist. Its remote protocol currently has no way to ask OpenOCD for that information, so it must configured by hand (or not at all). Update the docs to mention this; remove obsolete "don't do this" info. Presentation of GDB setup information is still a mess, but at least it calls out the three components that need setup. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* User's Guide: add quickie setup notesDavid Brownell2009-12-071-2/+41
| | | | | | | | | | | | | Add a brief "setup with no customization" note showing the how easily things can work if standard OpenOCD config scripts already exist. We've had some new users comment that this information is needlessly hard to find, so that starting to use OpenOCD is more difficult than it should be. Plus describe a few other issues that come up when setting up an OpenOCD server. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* User's Guide: mention ETM on ARM11 comes up tooDavid Brownell2009-12-071-1/+1
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* add 'flash list', rewrite 'flash banks'Zachary T Welch2009-12-061-2/+8
| | | | | | | Rename the existing 'flash banks' implementation as 'flash list', and replace the broken 'flash_banks' TCL wrapper with a new command handler. Adds documentation for the new 'flash list' command in the user guide.
* User's Guide: more semihosting infoDavid Brownell2009-12-041-2/+21
| | | | | | | | List it in the concept index, in the section about target software changes a project might want to consider, and in the section about debug messaging. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* 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>
* update bug reporting informationUwe Hermann2009-11-261-4/+2
| | | | | | The Berlios bug-tracker is disabled, bug reports go to the list. Signed-off-by: Zachary T Welch <zw@superlucidity.net>
* styleguide: add some embedded style rules.Øyvind Harboe2009-11-261-0/+3
| | | | | | | Embedded and pthreads rely on modest and predictable stack usage. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* update command handler documentationZachary T Welch2009-11-252-18/+83
| | | | | Adds sections on command registration and chaining, giving an overview to developers that want to use these features.
* 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.
* update command_handler documentationZachary T Welch2009-11-172-21/+22
| | | | | Improve the developer manual and primer sections which talk about writing command handlers. Notably, it documents the new CMD_* macros.
* 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.
* update developer manual for new typesZachary T Welch2009-11-132-5/+6
| | | | | Update the style guide and chase obvious references to structures that have been renamed.
* add documention for writing built-in commandsZachary T Welch2009-11-133-2/+163
| | | | | | | | This documentation update provides an introduction to the command handling facilities provided by command.[ch]. A primer walks the user through the elements of a pointedly pedantic module: src/hello.c. A summary of the API is provided in the OpenOCD Architecture section.
* 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>
* Release docs: fix notesDavid Brownell2009-11-041-7/+12
| | | | | | | | | | | We currently do something unusual: version codes in config.in get updated after the release, which means that "git describe" won't match up to development version labels. Comment that trouble spot. We can fix this by switching away from the major/minor/micro type release numbering, as various other projects have done. The major numbers basically don't tend to change, and doing a good job with micro versions is so annoying that they rarely change either.
* Doc: fix broken linkDavid Brownell2009-11-041-1/+1
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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