Commit Graph

255 Commits

Author SHA1 Message Date
David Brownell abe8b43755 ETM: add "etm trigger_debug" command
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>
2009-12-19 13:09:19 -08:00
David Brownell 9abad965ab ETM trigger_percent becomes an ETB command
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>
2009-12-19 13:06:46 -08:00
David Brownell 2c3e413d49 JTAG: shrink "scan_chain" output
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>
2009-12-16 14:19:44 -08:00
mkdorg@users.sourceforge.net 646ce814b4 target: add basic dsp563xx support 2009-12-15 18:38:52 +01:00
David Brownell af79925eb1 jtag: add '-ignore-version' option
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>
2009-12-14 15:55:51 -08:00
David Brownell 81aec6be04 ARM: list number of HW breakpoints/watchpoints
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>
2009-12-07 14:57:44 -08:00
David Brownell 927ae6899d User's Guide: add quickie setup notes
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>
2009-12-07 14:57:44 -08:00
David Brownell 5da53f17f0 User's Guide: mention ETM on ARM11 comes up too
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2009-12-07 14:57:43 -08:00
Zachary T Welch 30a6e683b8 add 'flash list', rewrite 'flash banks'
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.
2009-12-06 21:39:35 -08:00
David Brownell acd6d33994 User's Guide: more semihosting info
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>
2009-12-04 10:11:31 -08:00
Nicolas Pitre ed59dfc80a basic ARM semihosting support
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>
2009-12-03 18:42:01 -08:00
David Brownell a65e75ea34 Tcl and doc: update to match new 'arm mcr ...' etc
Make them match the C code.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2009-12-01 01:10:19 -08:00
Marek Vasut 17b7600a59 XScale: initial PXA3xx support
[dbrownell@users.sourceforge.net: user's guide; variant param is optional]

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2009-11-29 12:57:05 -08:00
David Brownell 4e56a2303b target: groundwork for "reset-assert" event
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>
2009-11-27 18:50:20 -08:00
Andreas Fritiofson 0583cb0a0d support for scripts in $HOME/.openocd
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>
2009-11-24 08:57:02 +01:00
Øyvind Harboe eeb4276deb arm926ejs: retire cp15 commands, handled by mrc/mcr.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2009-11-23 14:02:03 +01:00
David Brownell 85fe1506a2 ARM7/ARM9: remove old "debug commands"
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>
2009-11-20 16:21:29 -08:00
Zachary T Welch 4b18ef15a3 document new flash syntax
Updates the user documentation with the new syntax for defining
flash and nand banks.
2009-11-19 13:39:42 -08:00
David Brownell 56adbaffd0 ARMv7A: use standard disassembler
We no longer need v7A-specific code for this.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2009-11-16 16:36:21 -08:00
David Brownell f86137066a ARM: "armv4_5" command prefix becomes "arm"
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>
2009-11-16 16:36:09 -08:00
Zachary T Welch 555757175e Add 'nand verify' command
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.
2009-11-16 01:38:19 -08:00
David Brownell d47764ff71 ETM: start support for ETMv2+
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>
2009-11-12 20:24:41 -08:00
Jonas Horberg de735d375b parport: add support for the jtag_khz command.
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>
2009-11-12 12:39:37 -08:00
David Brownell 61af6a6816 target: MMU-aware init for memory read/write
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>
2009-11-10 11:58:31 -08:00
Øyvind Harboe c202ba7d34 ARM11: remove old mrc/mcr commands
Switch to new commands in config scripts

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2009-11-10 13:13:13 +01:00
David Brownell d70d9634bf finish removing deprecated/obsolete commands
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>
2009-11-09 13:16:32 -08:00
David Brownell 9253ce9bae User's Guide: Flash/NAND doc tweaks
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>
2009-11-09 12:02:23 -08:00
David Brownell 4882647f3e User's Guide: bugfix global state info
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>
2009-11-09 09:40:55 -08:00
David Brownell 3e6f9e8d1e target.cfg: remove "-work-area-virt 0"
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>
2009-11-08 08:52:40 -08:00
David Brownell afed39c0fe User's Guide: TAP setup tweakage
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>
2009-11-05 11:31:32 -08:00
David Brownell 72210fe3a3 User's Guide: more init info, autoprobing, etc
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>
2009-11-01 17:54:47 -08:00
David Brownell 19b84dafb0 ARM: rename "arm9tdmi vector_catch" to "arm9 ..."
And update doc accordingly.  That EmbeddedICE register was
introduced for ARM9TDMI and then carried forward into most
new chips that use EmbeddedICE.
2009-10-25 14:03:14 -07:00
David Brownell 75cdc8a260 arm9tdmi vector_catch: reserved means "don't use"
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.
2009-10-23 12:28:03 -07:00
David Brownell 344bed2f7e ETM: rename registers, doc tweaks
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>
2009-10-22 12:01:27 -07:00
Øyvind Harboe fcf1301e52 mww_phys retired. Replaced by generic mww phys in target.c 2009-10-21 22:25:33 +02:00
Øyvind Harboe e996452089 virt2phys is now implemented by target.c globally, retire target specific documentation. 2009-10-21 22:25:24 +02:00
Øyvind Harboe 2783cba810 Added target_read/write_phys_memory() fn's. mdX/mwX commands updated to support phys flag to specify bypassing of MMU. 2009-10-21 14:45:39 +02:00
David Brownell 7556a93aed XSVF: use svf_add_statemove()
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>
2009-10-20 20:04:36 -07:00
Øyvind Harboe ad75639611 Added 'unlock' option to flash write_image 2009-10-20 12:03:36 +02:00
David Brownell 6ec1026bbb Doc: jtag_init must validate scan chain too
Same requirement as like init_reset, and for the same reason:
we need to start with a known and working state.
2009-10-19 14:45:43 -07:00
David Brownell bc792857a5 doc updates to match "help" better
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>
2009-10-14 15:18:00 -07:00
Øyvind Harboe 79bf27da71 Retired gdb_attach. gdb-detach event covers this functionality. 2009-10-13 13:44:15 +02:00
Øyvind Harboe 23c629a85e arm11 burst writes are now only enabled for writes larger than 1 word. Single word writes are frequently used from reset init scripts to non-memory peripherals. 2009-10-12 15:13:44 +02:00
Øyvind Harboe 35affce085 Retire arm11 no_increment. Intended for future expansion to read/write to ports. New arm11 commands would have to be added to exploit it. 2009-10-12 14:21:38 +02:00
David Brownell dbf7440148 tweak new "translating ..." text
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>
2009-10-09 15:51:16 -07:00
David Brownell bc13c12be9 add documentation about reset customization
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>
2009-10-09 12:52:42 -07:00
Øyvind Harboe bffe824df6 Added tip in documentation on how to translate quirky syntax 2009-10-09 09:03:53 +02:00
David Brownell 7252a72465 Houston, we have Mirror! 2009-10-07 19:11:37 -07:00
dbrownell 03c9e48f88 Change most in-tree references from SVN to GIT.
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
2009-10-08 00:13:50 +00:00
dbrownell f8c8d8bc72 Remove pointless "target library" chapter.
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
2009-10-07 16:15:21 +00:00