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* ADIv5: cleanup, rename swjdp_transaction_endcheck()David Brownell2010-01-293-34/+43
| | | | | | | | | | | | | | | | Make messages reference "DAP" if they're actually transport-agnostic, or "JTAG-DP" when they're JTAG-specific. Saying SWJ-DP is often wrong (on most Cortex-A8 chips) and is confusing even if correct (since we don't yet support SWD). Rename a JTAG-specific routine to jtagdp_transaction_endcheck() to highlight that it's JTAG-specific, and that identify DAP clients undesirably depending on JTAG. (They will all need to change for SWD support.) Shrink a few overlong lines of code. Copy a comment from code removed in a previous patch (for the ARMv7-M "dap baseaddr" command). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARMv7-M: use command handler for "dap baseaddr".David Brownell2010-01-291-30/+1
| | | | | | | | | | Make the ARMv7-M DAP code reuse the command handler for "dap baseaddr". For some reason, this DAP command wasn't converted earlier. This is a code shrink and simplification; it also removes a needless transport dependency on JTAG. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: reference DPM defn from v6/v7 arch specDavid Brownell2010-01-281-0/+6
| | | | | | | | The term "DPM" is probably not well known ("Device Power Management"?), so identify its source in the current ARM architecture specification. It's relevant to ARMv6, ARMv7-A, and ARMv7-R ... but not "M" profiles. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM semihosting: win32 and cygwin fixesSpencer Oliver2010-01-281-16/+26
| | | | | | | | | | | | Cygwin would fail to reopen a previously written file if the mode is not given. Simplified converting the open flags and made sure the win32 O_BINARY bit is set. Added define for systems that do not support O_BINARY. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* ARM semihosting: fix writing to stdoutSpencer Oliver2010-01-281-8/+4
| | | | | | | | SYS_FLEN would be called before a write on a descriptor to check its size. Currently lseek would fail with -1 when given the stdout/stderr descriptor. Changing to use fstat seems to be the standard way of handling this. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* Cortex-M3: report lockup, and recoverDavid Brownell2010-01-271-0/+15
| | | | | | | | | | | | ARMv7-M defines a "lockup" state that's entered in certain double fault sequences which can't be recovered from without external help. OpenOCD has previously ignored this. Issue a diagnostic saying the chip has locked up, and force exit from this state by halting the core. It's not clear this is the best way to handle lockup; but there should now be less confusion. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM ADIv5: messaging tweaksDavid Brownell2010-01-271-2/+5
| | | | | | | Add space missing after the invalid ACK value. On init, say which AP is being used, and don't assume it's an AHP-AP. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Cortex-A8: debug messaging tweaksDavid Brownell2010-01-271-5/+6
| | | | | | | Make that "TODO" message say what needs to be done. Say what part of examining failed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* core arm11: Silence logs at level 3 if there is no activityEdgar Grimberg2010-01-251-1/+1
| | | | | | | | If the target and openocd are idling, the log should normally be silent at level 3. (Given no verbose logging options.) Signed-off-by: Edgar Grimberg <edgar.grimberg@zylin.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* EmbeddedICE - fix Feroceon/Dragonite messageDavid Brownell2010-01-221-2/+9
| | | | | | | The breakpoint/watchpoint message was wrong for Feroceon and Dragonite, which have only one working watchpoint unit. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM11: fix breakpoints with GDBDavid Brownell2010-01-221-9/+15
| | | | | | | | | | | This fixes a bug whereby GDB's breakpoints weren't activated. The root cause is a confused interface to resume(). Fix by almost ignoring the "handle breakpoints" parameter; it only seems related to the case of skipping breakpoint-at-PC. Update a few coments to clarify what's happening. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Various doc/comment updatesDavid Brownell2010-01-211-0/+1
| | | | | | | | Doxygen: don't be needlessly verbose; alphabetically sort members TODO: add random bits; clarify which manuals are referenced ARM disassembler: mention a few opcodes that still aren't handled Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ADIv5 header cleanup (+ #defines)David Brownell2010-01-211-7/+27
| | | | | | | | | | Update the comments about DP registers and some of the bitfields. Remove inappropriate (and unused) DP_ZERO declaration. Add some (currently unused) #defines needed for SWD protocol support, based on previous patches from Andreas Fritiofson and Simon Qian. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target: print reason why GDB haltsØyvind Harboe2010-01-211-0/+10
| | | | | | | | | | | If GDB halts unexpectedly, print reason: srst assert or power out detected. If polling fails, then things are a bit trickier. We do not want to spam telnet or the log with polling failed messages. Leave that case be w/a comment in a code for now. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* target: Fixed format problem for mdhEdgar Grimberg2010-01-211-1/+1
| | | | | | Fixed format problem for mdh. It needs to display 4 chars. Signed-off-by: Edgar Grimberg <edgar.grimberg@zylin.com>
* BUILD: remove cygwin gcc 3.4.4 build warningsSpencer Oliver2010-01-203-4/+4
| | | | Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* arm7/9: add nags upon reset about options to improve performanceØyvind Harboe2010-01-201-0/+10
| | | | | | arm7_9 fast_memory_access and working area nags added. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* ARMV7M: handle bkpt instruction on resume/stepSpencer Oliver2010-01-203-2/+63
| | | | | | | | | | Skip over a bkpt instruction if found on resume/step. Only software breakpoints known to OpenOCD are currently handled. So this handles the special case of either a user added bkpt or library added, eg. semi-hosting support. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* ADIv5 improved diagnosticDavid Brownell2010-01-151-2/+3
| | | | | | | Don't just complain about an invalid ACK; say what the value was, to help troubleshooting. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM DPM: disable some nyet-ready breakpoint codeDavid Brownell2010-01-151-6/+14
| | | | | | | | Until we manage breakpoints at runtime (patches not ready for 0.4) the only way this code should touch them is to disable them at server startup (a previous debug session may have left them active). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM ADIv5: add commentsDavid Brownell2010-01-141-1/+27
| | | | | | | Add doxygen and other comments for what's more or less the lowest level JDAG-DP primitive, to access JTAG_DP_{A,D}PACC registers. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM7/ARM9: improved reset supportDavid Brownell2010-01-141-14/+23
| | | | | | | | | | Teach most remaining ARM cores how to use the "reset-assert" event. Same model as elsewhere: iff a handler is provided for that event, use that instead of trying to assert SRST (which may be unavailable, or inappropriate since it resets too much). Else no change. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM7/9 minor cleanupsDavid Brownell2010-01-141-16/+34
| | | | | | | Shrink some overlong lines. Add my 2009 copyright. Move a declaration to the beginning of its block. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Cortex-M3: improved core exception handlingDavid Brownell2010-01-132-23/+31
| | | | | | | | | | | | | | | | | | | | | | This updates three aspects of debugger/exception interactions: - Save the user's "vector_catch" setting, and restore it after reset. Previously, it was obliterated (rather annoyingly) each time. - Don't catch BusFault and HardFault exceptions unless the user says to do so. Target firmware may need to handle them. - Don't modify SHCSR to prevent escalating BusFault to HardFault. Target firmware may expect to handle it as a HardFault. Those simplifications fix several bugs. In one annoying case, OpenOCD would cause the target to lock up on ome faults which triggered after the debugger disconnected. NOTE: a known remaining issue is that OpenOCD can still leave DEMCR set after an otherwise-clean OpenOCD shutdown. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* arm7/9: enable check that DCC downloads have been enabledØyvind Harboe2010-01-138-0/+9
| | | | Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* arm7/9: add fn to check if dcc downloads have been enabledØyvind Harboe2010-01-132-1/+13
| | | | | | | | DCC downloads should be enabled for any self repecting openocd config file for arm7/9. Print out note about it otherwise. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* target: add check_reset hookØyvind Harboe2010-01-133-1/+46
| | | | | | | Allow targets to run checks post reset. Used to check that e.g. DCC downloads have been enabled. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* ARM: bugfix for "movt" disassemblyDavid Brownell2010-01-121-1/+1
| | | | | | | Use the correct bitfield to specify the register whose top halfword gets replaced. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* reset: better error messagesØyvind Harboe2010-01-111-2/+2
| | | | | | | | Use correct tcl syntax to throw exception. the syntax is "return -code error" not "return -error" Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* MIPS: update arch_info access to match other targetsSpencer Oliver2010-01-097-68/+107
| | | | | | | - add target_to_mips32 and target_to_m4k to match test of codebase. - mips32_arch_state now shows if processer is running mips16e isa. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* *SVF: help/usage updatesDavid Brownell2010-01-081-1/+1
| | | | | | | | | | | | Usage messages should use the same EBNF as the User's Guide; no angle brackets. Be more complete too ... some params were missing. Don't use "&function"; its name is its address. Unrelated: fix typo in one "target.c" usage message. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* misc ARM help/usage updatesDavid Brownell2010-01-073-7/+9
| | | | | | | | | | | | 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. Don't use "&function"; functions are like arrays, their address is their name. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM966: help/usage updatesDavid Brownell2010-01-071-1/+11
| | | | | | | | | | 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 to say where the magic CP15 bits are defined; and add comments in case someone provides mcr/mrc methods. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM720: help/usage updatesDavid Brownell2010-01-071-10/+14
| | | | | | | | | | | | | 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. Update User's Guide to say where to find those magic values (which table in the ARM920 TRM). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM720: help/usage updatesDavid Brownell2010-01-071-2/+4
| | | | | | | | | | 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 Brownell2010-01-071-12/+17
| | | | | | | | | | | | | | | | | 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 Brownell2010-01-071-8/+8
| | | | | | | | | | | | | | | | | | 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 Brownell2010-01-075-34/+60
| | | | | | | | | | | | | | | | | | 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>
* ARM ETM/ETB/trace: help/usage updatesDavid Brownell2010-01-074-29/+47
| | | | | | | | | | | | | 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; 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. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target misc: help/usage updatesDavid Brownell2010-01-073-131/+164
| | | | | | | | | | | | 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. Don't use "&function"; functions are like arrays, their address is their name. Shrink some overlong lines; remove some empties. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* XScale: help/usage updatesDavid Brownell2010-01-071-36/+43
| | | | | | | | | | | | | | Provide helptext which was sometimes missing; update some of it to be more accurate (mostly they display something w/no args). Usage syntax messages have the same EBNF as the User's Guide. In some cases, *exactly* what the user's guide shows... e.g. talking about "offset" not "address" for trace_image. Don't use "&function"; functions are like arrays, their name is their address. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* MIPS: change bulk_write_memory fallback msg to LOG_DEBUGSpencer Oliver2010-01-071-1/+1
| | | | Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* MIPS: whitespace cleanupSpencer Oliver2010-01-075-219/+218
| | | | Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* MIPS: fastdata bulk write fallbackSpencer Oliver2010-01-062-9/+7
| | | | | | | If fastdata access fails, then fallback to default mips_m4k_write_memory Remove unnecessary fastdata loader verify check Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* ARM: add #defines for JTAG ack codesDavid Brownell2010-01-052-6/+9
| | | | | | | | JTAG has only two possible JTAG ack codes for APACC and DPACC register reads/writes. Define them, and remove empty "else" clause in the code which now uses those codes. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: add comments re DAP assumptionsDavid Brownell2010-01-051-2/+14
| | | | | | | I think some of these assumptions are not well-founded. Related, that swjdp_transaction_endcheck() is a bit iffy. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* MIPS: pracc access tweaksSpencer Oliver2010-01-051-15/+8
| | | | | | reorder the pracc access so we can save a few access cycles Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* MIPS: optimize pracc accessSpencer Oliver2010-01-054-88/+51
| | | | | | | remove unnecessary nops when accessing ejtag pracc general fastdata patch cleanup Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* MIPS: merge mips fast_data patch from David N. ClaffeyDavid Claffey2010-01-057-7/+244
| | | | Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* ARMv7-M: use AP_REG_* symbolDavid Brownell2010-01-041-1/+6
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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