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* jtag: retire jtag_get/set_end_state()Øyvind Harboe2010-03-192-40/+0
| | | | | | | Voila! This get rids of mysteries about what what state the TAP is in. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* jtag: remove jtag_get_end_state()'s that should be unecessaryØyvind Harboe2010-03-191-1/+1
| | | | | | | | By a bit of code inspection it seems like all of these instances of jtag_get_end_state() can be unambigously replaced by constants. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* jtag: cut down on usage of unintended modification of global end stateØyvind Harboe2010-03-182-4/+8
| | | | | | | | | | | | | jtag_get/set_end_state() is now deprecated. There were lots of places in the code where the end state was unintentionally modified. The big Q is whether there were any places where the intention was to modify the end state. 0.5 is a long way off, so we'll get a fair amount of testing. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* zy1000: tweak the DCC inner loop a tiny bitØyvind Harboe2010-03-171-5/+8
| | | | | | Uses FIFO a bit more efficiently now. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* bitbang: add jtag_add_tms_seq supportØyvind Harboe2010-03-166-0/+33
| | | | Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* move "reset_config" out of JTAG command groupDavid Brownell2010-03-151-11/+11
| | | | | | | | | | | | The SRST configuration options are not specific to JTAG, so this command may be needed with non-JTAG debug sessions. Just move the command to a different group. (The TRST options are, however, clearly JTAG-specific, but for compatibility, they're now left alone. The flags they control could later be disabled in non-JTAG sessions.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* rename jtag_nsrst_assert_width as adapter_nsrst_assert_widthDavid Brownell2010-03-153-15/+17
| | | | | | | | | | | Globally rename "jtag_nsrst_assert_width" as "adapter_nsrst_assert_width", and move it out of the "jtag" command group ... it needs to be used with non-JTAG transports Includes a migration aid (in jtag/startup.tcl) so that old user scripts won't break. That aid should Sunset in about a year. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* rename jtag_nsrst_delay as adapter_nsrst_delayDavid Brownell2010-03-153-14/+15
| | | | | | | | | | | Globally rename "jtag_nsrst_delay" as "adapter_nsrst_delay", and move it out of the "jtag" command group ... it needs to be used with non-JTAG transports Includes a migration aid (in jtag/startup.tcl) so that old user scripts won't break. That aid should Sunset in about a year. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* rename jtag_khz as adapter_khzDavid Brownell2010-03-154-17/+27
| | | | | | | | | | | Globally rename "jtag_khz" as "adapter_khz", and move it out of the "jtag" command group ... it needs to be used with non-JTAG transports Includes a migration aid (in jtag/startup.tcl) so that old user scripts won't break. That aid should Sunset in about a year. (We may want to update it to include a nag message too.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* FT2232: bulidfixSpencer Oliver2010-03-151-1/+1
| | | | | | Fix build issue with commit c23d4596d2239bdbba080499de837f53e0c89e59 Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* rename jtag_interface_{init,quit}()David Brownell2010-03-143-14/+17
| | | | | | | These routines apply to non-JTAG debug adapters too. To reduce confusion, give them better (non-misleading) names. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* FT2232: lookup and save layout just onceDavid Brownell2010-03-141-31/+39
| | | | | | | | | | | | | | Streamline use of the layout: have the "ft2232_layout" command look it up and save the result, instead of having a few different chunks of code looking it up later, and saving just its name (which is already part of the layout). This - is cleaner - reports errors sooner - facilitates earlier adapter-specific setup - removes unused "default to "usbjtag" logic Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* versaloon cleanup patchDavid Brownell2010-03-111-321/+271
| | | | | | | | | | | | | Remove undesirable - backslashes at end-of-line; - initializations of BSS data to zero/NULL; - overlong lines (80+ characters) - whitespace issues - brackets around single-line statements And other minor issues reported by the Linux "checkpatch" utility Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* New JTAG driver for Versaloonsimon qian2010-03-111-1072/+304
| | | | | | | | | | This patch greatly simplifies the Versaloon driver: - reducing the code size from more than 50K to less than 28K - adding support for IR/DR scan with unlimited size - using tap_get_tms_path and tap_get_tms_path_len. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Add support for Bus Pirate as a JTAG adapter.Michal Demin2010-03-113-0/+978
| | | | | | | | This includes a driver and matching config file. This support needs to be enabled through the initial "configure" (use "--enable-buspirate"). Signed-off-by: Michal Demin <michaldemin@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* split "interface" commands from "jtag" onesDavid Brownell2010-03-112-5/+25
| | | | | | | | | | | | | | | | | | | | | | | | | We'll need to be able to work with debug adapter interfaces (drivers) even when they're not used for JTAG ... for example, while there are multi-transport drivers which support JTAG *and* several other transports (or just one more, like SWD) there are also adapters with more limited goals (and no JTAG support at all). Start decoupling the two concepts ("debug adapter driver", "jtag") by having two command groups, which initialize separately. This will help us support OpenOCD sessions using only non-JTAG transports, in which JTAG commands should not be registered. Update docs to mention that the JTAG, SVF, and XSVF commands won't work without a JTAG transport. Note that at least commands working with SRST are still inappropriately coupled to JTAG ... inappropriate because (a) SRST is not part of the JTAG standard, for all that many platforms (like ARM) expect it; and also (b) because they're used with non-JTAG debug and programming interfaces, too. They should perhaps become generic "interface" operations at some point. (Similarly with the clock rate to be used by a given adapter.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* JLINK: user info message cleanupSpencer Oliver2010-03-101-29/+46
| | | | | | | - remove trailing LF's from user info messages. - split long lines. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* zy1000: embedded ice dcc tweakØyvind Harboe2010-03-081-21/+48
| | | | | | | | | | How many bits to shift out before/after enabled tap not in bypass is calculated outside the loop. This is more of a demonstration of principle and to clarify code than a performance optimisation as such. Follows up a bit on the simplification work in jtag interface. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* jtag: simplify jtag_add_plain_ir/dr_scanØyvind Harboe2010-03-086-64/+55
| | | | | | | These fn's now clearly just clock out/in bits. No mystical fields are involved. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* jtag: jtag_add_ir_scan() now takes a single fieldØyvind Harboe2010-03-087-26/+35
| | | | | | | | In the code a single field was all that was ever used. Makes jtag_add_ir_scan() simpler and leaves more complicated stuff to jtag_add_plain_ir_scan(). Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* jtag: retire tap fieldØyvind Harboe2010-03-087-113/+52
| | | | | | | | | | | | | | | | | jtag_add_dr/ir_scan() now takes the tap as the first argument, rather than for each of the fields passed in. The code never exercised the path where there was more than one tap being scanned, who knows if it even worked. This simplifies the implementation and reduces clutter in the calling code. use jtag_add_ir/dr_plain_scan() for more fancy situations. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* minidriver: fix arm11 compilation problemØyvind Harboe2010-03-051-0/+6
| | | | Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* zy1000: faster jtag_add_ir_scan()Øyvind Harboe2010-03-011-9/+3
| | | | | | Faster and simpler. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* zy1000: arm11 load is now fasterØyvind Harboe2010-03-011-42/+71
| | | | | | 290kBytes/s @ 8MHz, no need to inline jtag_tap_next_enabled(). Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* zy1000: add jtag_add_tms_seq supportØyvind Harboe2010-03-011-20/+41
| | | | Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* jtag: the post TAP state is now passed to the driversØyvind Harboe2010-03-014-4/+5
| | | | | | | | | | after clocking out a tms sequence, then the TAP will be in some state. This state is now handed to the drivers. TAP_INVALID is a possible state after a TMS sequence if switching to SWD. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* FT2232: add missing enum when using ftd2xx librarySpencer Oliver2010-02-281-0/+10
| | | | Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* Add board/redbee-usb.cfgMariano Alvira2010-02-281-0/+5
| | | | | | | | | | | The Redbee USB is a small form-factor usb stick from Redwire, LLC (www.redwirellc.com/store), built around a Freescale MC13224V ARM7TDMI + 802.15.4 radio (plus antenna). It includes an FT2232H for debugging, with Channel B connected to the mc13224v's JTAG interface (unusual) and Channel A connected to UART1. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* add board/redbee-econotag.cfg and JTAG supportMariano Alvira2010-02-271-0/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | The Redbee Econotag is an open hardware development kit from Redwire, LLC (www.redwirellc.com/store), for the Freescale MC13224V ARM7TDMI + 802.15.4 radio. It includes both an MC13224V and an FT2232H (for JTAG and UART support). It has flexible power supply options. Additional features are: - inverted-F pcb antenna - 36 GPIO brought out to 0.1" pin header (includes all peripheral pins) - Reset button - Two push buttons (on kbi1-5 and kbi0-4) - USB-A connector, powered from USB - up to 16V external input - pads for optional buck inductor - pads for optional 32.768kHz crystal - 2x LEDS on TX_ON and RX_ON [ dbrownell@users.sourceforge.net: shrink lines; texi ] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ft2232: implement TMS sequence commandDavid Brownell2010-02-271-2/+72
| | | | | | | Implement the new TMS_SEQ command on FT2232 hardware. Also, swap a bogus exit() call with a clean failure return. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* interface: define TMS sequence commandDavid Brownell2010-02-278-11/+124
| | | | | | | | | | | | | | | | | | | | | | | For support of SWD we need to be able to clock out special bit sequences over TMS or SWDIO. Create this as a generic operation, not yet called by anything, which is split as usual into: - upper level abstraction ... here, jtag_add_tms_seq(); - midlayer implementation logic hooking that to the lowlevel code; - lowlevel minidriver operation ... here, interface_add_tms_seq(); - message type for request queue, here JTAG_TMS. This is done slightly differently than other operations: there's a flag saying whether the interface driver supports this request. (In fact a flag *word* so upper layers can learn about other capabilities too ... for example, supporting SWD operations.) That approach (flag) lets this method *eventually* be used to eliminate pathmove() and statemove() support from most adapter drivers, by moving all that logic into the mid-layer and increasing uniformity between the various drivers. (Which will in turn reduce subtle bugginess.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ft2232: add a mechanism to specify channel in layout structsMariano Alvira2010-02-251-3/+7
| | | | | | | | | | | | | | | | | | | | | | | FT2232-family chips have two or more MPSSE modules. FTDI documentation calls these channels. JTAG adapter drivers thus need to be able to choose which channel to use. (For example, one channel may connect to a board's microcontroller, while another connects to a CPLD.) Since each channel has its own USB interface, libftdi (somewhat confusingly) identifies channels using INTERFACE_* symbols. Most boards use INTERFACE_A for JTAG, which is the default in OpenOCD. But some wire up a different one. Note that there are two facets of what makes a wiring "layout": - The mapping between debug signals map and channel signals ... embedded in C functions. - Label used in Tcl configuration scripts ... part of the "layout" structure. By letting the channel be part of the layout struct, we permit sharing the C functions between Tcl-visible layouts, when those signal mappings are reused. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* arm11: improve performance using minidriver hookØyvind Harboe2010-02-221-3/+65
| | | | | | | | | | | | | | | | zy1000 performance for GDB load went from 100kBytes/s to 300kBytes/s @ 8 MHz by implementing the inner loop of unack arm11 memory writes directly on top of the hw fifo. Profiling info: 78.57 0.77 0.77 arm11_run_instr_data_to_core_noack_inner 5.10 0.82 0.05 memcpy 4.08 0.86 0.04 jtag_tap_next_enabled 3.06 0.89 0.03 gdb_input Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* arm11: allow minidrivers to implement inner loop of memory writesØyvind Harboe2010-02-221-0/+8
| | | | | | | | | | | | | | | This allows minidrivers to e.g. hardware accelerate memory writes. Same trick as is used for arm7/9 dcc writes. Added error propagation for memory transfer failures in code rearrangement. Also the JTAG end state is not updated until after the memory write run is complete. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* zy1000: jtag_add_dr_scan() performance improvementØyvind Harboe2010-02-221-8/+15
| | | | | | Reduce overhead in jtag_add_dr_scan() a bit. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* ft2232 table init cleanupDavid Brownell2010-02-211-19/+78
| | | | | | | | Use labeled initializers in the table of layouts instead of positional ones. This ls cleaner and less error prone, plus it simplifies patches which add members to these structure. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* FreeBSD buildfixDavid Brownell2010-02-201-2/+2
| | | | | | | | | Fix an unused variable warning seen when building the parport driver under FreeBSD. Using information from Xiaofan Chen <xiaofanc@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* JLink: reference protocol documentationDavid Brownell2010-02-041-0/+4
| | | | | | | Segger publishes some documentation on this protocol; reference it, so future maintainers can know it exists. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* JTAG: fix bug when no interface connectedSpencer Oliver2010-02-031-0/+7
| | | | | | - fix coredump when OpenOCD is started without a jtag interface connected. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
* gdb: restore behavior from 0.3.1 for srst_asserted and power_restoreØyvind Harboe2010-02-011-2/+23
| | | | | | | | srst_asserted and power_restore can now be overriden to do nothing. By default they will "reset init" the targets and halt gdb. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* core arm11: Silence logs at level 3 if there is no activityEdgar Grimberg2010-01-251-4/+6
| | | | | | | | 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>
* zy1000: flush jtag buffer before changing speedØyvind Harboe2010-01-191-0/+3
| | | | | | | | | It is conceivable that there could be commands in the queue when a speed change request comes in. Flush the hw queue before changing speed. Not observed, found by inspection. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* vsllink -- add commentDavid Brownell2010-01-181-0/+3
| | | | | | | Previous patch deserved *inline* comment, not just in git revision history. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* commands: allow scan_chain command to be executed during configØyvind Harboe2010-01-181-1/+1
| | | | | | | Adding taps and then dumping them is quite reasonable thing to do in a config script. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* read target voltage first in vsllinksimon qian2010-01-171-0/+8
| | | | | | | | | | | | The very first command after init command should be "read target voltage". This is a tweak for the Old Versaloon firmware. Without this, in most most cases, it works. Under Ubuntu9.04, there is a chance that the USB will fail. The problem disappears if I read target voltage first. For the lastest Versaloon firmware, it's OK. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* jtag.h whitespace/comment cleanupDavid Brownell2010-01-141-9/+8
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target: return JIM_OK instead of ERROR_OKØyvind Harboe2010-01-111-1/+1
| | | | | | | No change in actual binary as JIM_OK == ERROR_OK, but JIM_OK is correct here. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* zy1000: reset bugfixØyvind Harboe2010-01-111-1/+7
| | | | | | | flush JTAG FIFO before reset. Fixes RCLK problems observed w/lpc2148, but really fixes a wider range of problems. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* Presto: doxygen fixDavid Brownell2010-01-091-1/+2
| | | | | | Newline needed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* jtag/tcl help/usage fixupsDavid Brownell2010-01-091-74/+115
| | | | | | | | | | The usual: expand several helptexts to be more correct and to use full sentences; make the usage messages use the same EBNF as the User's Guide; use function names for their addresses. Also add a comment about that odd jtag_command_handlers_to_move[] thing. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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