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* jtag: retire one instance of jtag_get_end_state() usageØyvind Harboe2010-03-181-6/+6
| | | | | | Less global variables.... Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* jtag: cut down on usage of unintended modification of global end stateØyvind Harboe2010-03-181-4/+4
| | | | | | | | | | | | | 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>
* jtag: retire tap fieldØyvind Harboe2010-03-081-13/+4
| | | | | | | | | | | | | | | | | 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>
* ARM: keep a handle to the PCDavid Brownell2010-02-211-3/+3
| | | | | | | | | | | | | | | | Keep a handle to the PC in "struct arm", and use it. This register is used a fair amount, so this is a net minor code shrink (other than some line length fixes), but mostly it's to make things more readable. For XScale, fix a dodgy sequence while stepping. It was initializing a variable to a non-NULL value, then updating it to handle the step-over-active-breakpoint case, and then later testing for non-NULL to see if it should reverse that step-over-active logic. It should have done like ARM7/ARM9 does: init to NULL. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* arm7/9: enable check that DCC downloads have been enabledØyvind Harboe2010-01-131-0/+1
| | | | Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* misc ARM help/usage updatesDavid Brownell2010-01-071-1/+1
| | | | | | | | | | | | 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>
* ARM: don't clone arm_arch_state() codeDavid Brownell2009-12-071-8/+2
| | | | | | | | | | | Have various ARM cores delegate to arm_arch_state() to display basic information, instead of duplicating that logic. This shrinks the code, makes them all report when semihosting is active, and highlights which data are specific to this core. (Like ARM720 not having separate instruction and data caches.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: rename some generic routinesDavid Brownell2009-12-071-1/+1
| | | | | | | | | | | | | | | | Rename some (mostly) generic ARM functions: armv4_5_arch_state() --> arm_arch_state() armv4_5_get_gdb_reg_list() --> arm_get_gdb_reg_list() armv4_5_init_arch_info() --> arm_init_arch_info() Cores using the microcontroller profile may want a different arch_state() routine though. (Also fix strange indentation in arm_arch_state: use tabs only! And update a call to it, removing assignment-in-conditional.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: move opcode macros to <target/arm_opcodes.h>David Brownell2009-12-071-0/+1
| | | | | | | | | | | | | | | Move the ARM opcode macros from <target/armv4_5.h>, and a few Thumb2 ones from <target/armv7m.h>, to more appropriate homes in a new <target/arm_opcodes.h> file. Removed duplicate opcodes from that v7m/Thumb2 set. Protected a few macro argument references by adding missing parentheses. Tightening up some of the line lengths turned up a curious artifact: the macros for the Thumb opcodes are all 32 bits wide, not 16 bits. There's currently no explanation for why it's done that way... Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: rename armv4_5_state_* as arm_state_*David Brownell2009-12-041-1/+1
| | | | | | And make arm_state_strings[] be const. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* change #include "time_support.h" to <helper/time_support.h>Zachary T Welch2009-12-031-1/+1
| | | | | | | | | | | | Changes from the flat namespace to heirarchical one. Instead of writing: #include "time_support.h" the following form should be used. #include <helper/time_support.h> The exception is from .c files in the same directory.
* target: "mcr" and "mrc" are ARM-specificDavid Brownell2009-12-011-2/+3
| | | | | | | | | | | | | | Switch "mrc" and "mcr" commands to be toplevel ARM operations, as they should initially have been. Correct the usage message for both commands: it matches ARM documentation (as one wants!) instead of reordering them to match the funky mrc() and mcr() method usage (sigh). For Cortex-A8: restore a line that got accidentally dropped, so the secure monitor mode shadow registers will show again. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* remove target_type register_command callbackZachary T Welch2009-11-241-9/+5
| | | | | | Uses chaining of command_registration structures to eliminate all target_type register_callback routines. Exports the command_handler registration arrays for those target types that are used by others.
* arm926ejs: use register_commands()Zachary T Welch2009-11-241-14/+22
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* use COMMAND_REGISTER macroZachary T Welch2009-11-241-2/+2
| | | | | Replaces direct calls to register_command() with a macro, to allow its parameters to be changed and callers updated in phases.
* arm926ejs: retire cp15 commands, handled by mrc/mcr.Øyvind Harboe2009-11-231-66/+0
| | | | Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* arm926ejs: fix warningsØyvind Harboe2009-11-221-2/+2
| | | | | | | | buf_set_u32() operated on an uninitialized stack variable with non-byte boundaries, which led to warnings about reading uninitialized stack. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* ARM: remove 'armv4_5_common_s' migration #defineDavid Brownell2009-11-221-2/+2
| | | | | | Finish migrating from the old symbol to the new one. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: arm_set_cpsr() handles T and J bitsDavid Brownell2009-11-221-1/+0
| | | | | | | | | | | | | | Have arm_set_cpsr() handle the two core state flags, updating the CPU state. This eliminates code in various debug_entry() paths, and marginally improves handling of the J bit. Catch and comment a few holes in the handling of the J bit on ARM926ejs cores ... it's unlikely our users will care about Jazelle mode, but we can at least warn of Impending Doom. If anyone does use it, these breadcrumbs may help them to find the right path through the code. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: define two register utilitiesDavid Brownell2009-11-221-5/+7
| | | | | | | | | | | | | | Define arm_reg_current() ... returning handle to a given register, and encapsulating the current mode's register shadowing. It's got one current use, for reporting the current register set to GDB. This will let later patches clean up much ARMV4_5_CORE_REG_MODE() nastiness, saving a bit of code. Define and use arm_set_cpsr() ... initially it updates the cached CPSR and sets up state used by arm_reg_current(), plus any SPSR handle. (Later: can also set up for T and J bits.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: simplify CPSR handlingDavid Brownell2009-11-221-4/+4
| | | | | | | | | | | | | | Stash a pointer to the CPSR in the "struct arm", to help get rid of the (common) references to its index in the register cache. This removes almost all references to CPSR offsets outside of the toplevel ARM code ... except a pair related to the current ARM11 "simulator" logic (which should be removable soonish). This is a net minor code shrink of a few hundred bytes of object code, and also makes the code more readable. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: add arm_mode_name()David Brownell2009-11-171-1/+1
| | | | | | | | | | | | | | | Add and use arm_mode_name() to map from PSR bits to user meaningful names. It uses a new table which, later, can be used to hold other mode-coupled data. Add definitions for the "Secure Monitor" mode, as seen on some ARM11 cores (like ARM1176) and on Cortex-A8. The previous mode name scheme didn't understand that mode. Remove the old mechanism ... there were two copies, caused by Cortex-A8 needing to add "Secure Monitor" mode support. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* command_handler: change 'cmd_ctx' to CMD_CTXZachary T Welch2009-11-171-11/+11
| | | | Convert all command handler 'cmd_ctx' parameter usage with CMD_CTX.
* command_handler: change 'args' to CMD_ARGVZachary T Welch2009-11-171-5/+5
| | | | | This patch converts all instances of 'args' in COMMAND_HANDLER routines to use CMD_ARGV macro.
* command_handler: change to 'argc' to CMD_ARGCZachary T Welch2009-11-171-2/+2
| | | | | This patch converts all instances of 'argc' in COMMAND_HANDLER routines to use CMD_ARGC.
* ARM9TDMI: remove now-needless "struct arm9tdmi"David Brownell2009-11-171-6/+4
| | | | | | | And move the rest of the vector_catch stuff into the C file; it's not part of the module interface. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* target: no implicit #includes of "register.h"David Brownell2009-11-161-0/+1
| | | | | | | | | | | | Same deal: "register.h" got needlessly included all over the place because of being in a few widely included headers. So take it out of the header files which included it, and put it in files which use it ... reduce needless interdependencies. Also, don't need that extra "types.h" inclusion. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: memory utils aren't ARM7/ARM9 dependentDavid Brownell2009-11-151-2/+3
| | | | | | | | | | | | | | | | The arm7_9_checksum_memory() and arm7_9_blank_check_memory() routines are not actually specific to the ARM7 and ARM9 core generations ... they can work for any core which can run algorithms using basic ARM (not Thumb) instructions. Rename them; move the declarations to a more generic site; likewise move the code (and tidy it a bit in the process). NOTE: the blank_check() method falsely returned a success status (0) on one error path, when the algorithm failed. Fixed this bug. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM7/ARM9: use shared examine() methodDavid Brownell2009-11-131-1/+1
| | | | | | | | | No point in having two identical examine methods for the ARM7TDMI and ARM9TDMI drivers; move, rename, shrink, share. Add a bit of doxygen; stop needlessly exporting a method. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* command_t -> struct commandZachary T Welch2009-11-131-1/+1
| | | | Remove misleading typedef and redundant suffix from struct command.
* command_context_t -> struct command_contextZachary T Welch2009-11-131-2/+2
| | | | Remove misleading typedef and redundant suffix from struct command_context.
* target_t -> struct targetZachary T Welch2009-11-131-21/+21
| | | | Remove misleading typedef and redundant suffix from struct target.
* reg_t -> struct regZachary T Welch2009-11-131-2/+2
| | | | Remove misleading typedef and redundant suffix from struct reg.
* target_type_t -> struct target_typeZachary T Welch2009-11-131-1/+1
| | | | Remove misleading typedef and redundant suffix from struct target_type.
* arm_jtag_t -> struct arm_jtagZachary T Welch2009-11-131-2/+2
| | | | Remove misleading typedef and redundant suffix from struct arm_jtag.
* arm9tdmi_common_t -> struct arm9tdmi_commonZachary T Welch2009-11-131-1/+1
| | | | Remove misleading typedef and redundant suffix from struct arm9tdmi_common.
* arm926ejs_common_t -> struct arm926ejs_commonZachary T Welch2009-11-131-17/+17
| | | | Remove misleading typedef and redundant suffix from struct arm926ejs_common.
* arm7_9_common_t -> struct arm7_9_commonZachary T Welch2009-11-131-5/+5
| | | | Remove misleading typedef and redundant suffix from struct arm7_9_common.
* scan_field_t -> struct scan_fieldZachary T Welch2009-11-131-2/+2
| | | | Remove useless structure typedef.
* jtag_tap_t -> struct jtag_tapZachary T Welch2009-11-131-1/+1
| | | | | Search and destroy the jtag_tap_t typedef. This also cleans up a layering violation, removing the declaration from types.h.
* add CMD_NAME macro for command handlersZachary T Welch2009-11-131-1/+1
| | | | | By introducing the CMD_NAME macro, this parameter may be integrated as args[-1] in command.[ch], without touching any other call sites.
* use COMMAND_HANDLER macro to define all commandsZachary T Welch2009-11-131-5/+2
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* ARM926 uses the new inheritance/nesting schemeDavid Brownell2009-11-051-125/+46
| | | | | | | Use target_to_arm926(), replacing needless pointer traversals and simplifying a bunch of code. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM926: more cleanupDavid Brownell2009-11-051-37/+22
| | | | | | | | | | | | An init_target() wrapper isn't needed, and target_create() can shrink a bit. Add a header comment and some doxygen. Remove arm926ejs_catch_broken_irscan() which has been a NOP for quite a few months now, and in any case duplicates logic in the JTAG core to validate IR capture data. But force the capture mask to 0x0f, so those tests are most effective. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Improve arm926ejs command argument parsing.Zachary T Welch2009-11-051-5/+6
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* target: remove unused interface fn that clutters codeØyvind Harboe2009-11-051-6/+0
| | | | | | | | | The quit entry point was not being invoked. Just a source of confusion at this point. XScale ran 100x reset upon quit, but that code made no sense, wasn't commented and never invoke. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* ARM926: fix arm926ejs_mmu() reading from bad pointerDavid Brownell2009-10-301-1/+3
| | | | | | | | | I'm suspecting this code can never have worked, since the original commit (svn #335) in early 2008. Fix is just copy/paste from another (working) function. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM926: remove exports and forward declsDavid Brownell2009-10-281-122/+127
| | | | | | | | | | | | | Unneeded exports cause confusion about the module interfaces. Only the Feroceon code builds on this, so only routines it reuses should be public.. Make most remaining functions static, and fix some of the line-too-long issues. The forward decls are just code clutter; move their references later, after the normal declarations. Turns out we don't need even one forward declaration in this file. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* check if mmu is enabled before using mmu code pathØyvind Harboe2009-10-251-1/+1
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* mcr/mrc interface work. Implemented for arm926ejs and arm720t. mcr/mrc ↵Øyvind Harboe2009-10-231-2/+26
| | | | commands added.
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