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This eliminates redundant code for parsing and retreiving the bank
specified from a script command argument. This patch was written to
replace existing functionality; however, the parsing logic can be
updated later to allow flash commands to accept bank names as well as
their numbers.
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Passes cmd_ctx into parse_load_image_command_args for reporting the
parsing errors therein.
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This helper eliminates significant amount of redundant code in command
handler functions throughout the system. It wraps the lower-level
parse_* macros to implement a policy for reporting parse errors to the
active command context (cmd_ctx). If errors do occur, this macro causes
the calling function to abort with the proper return code.
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The arm920t has a concept of read modify write cycles
that may have to be represented in the mrcmcr interface
eventually.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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Now matches machine code syntax and old arm11 syntax.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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This avoids polluting help for targets that can never support mrc/mcr
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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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>
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Fail watchpoint_add() if it's the same address but the
parameters are different ... don't just assume having
the same address means the same watchpoint! (Note that
overlapping watchpoints aren't detected...)
Handle unrecognized return codes more sanely; don't exit()!
And describe command params right.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Expose most DWT registers via Tcl; there are a few more, but
those are mostly for profiling along with the ITM. Having
this set available enables operations which aren't possible
with just the standard watchpoint operations.
The cycle counter may be interesting. Turn it on after reset
by setting the LSB of the dwt_ctrl register, and it counts
CPU clocks. You can program the comparator 0 watchpoint to
trigger on a given cycle count, rather than a data address.
Likewise, comparator 1 may be able to match data values given
address matches from one or two other comparators. (Not all
hardware supports this capability though; try it. That is
something the standard watchpoint methods should eventually
handle, for the single address case.)
Minor cleanup: remove needless functional indirection for
exposing the v7m architctural registers.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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There's no reason to read which interrupts are enabled from
the NVIC; that state isn't used. Plus, it's highly dynamic
since firmware can change it at any time; remove the support
for those state records.
Remove duplicate definition of DWT_CTRL address; shrink a line.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Fix the watchpoint error checks, and do them in add(), not later
in set() when it's mostly too late. Support the full range of
watchpoint sizes (1 to 32K bytes each), and check alignments.
Minor cleanup of DWT access: shrink lines, use "+" for address
calculations, comment a few issues. Add debug message reporting
DWT capabilities, matching the message for FBP, and some minor
code and spec review comments.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Add Doxygen for the exported ARMv7-M interfaces.
Make the non-exported stuff static. Remove functions and
data which are now observably unused.
Add comment about a small speedup that the run_algorithm()
logic could use. Shrink a few too-long lines.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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improve default target->read/write_phys_memory, produce
more sensible error messages if the mmu interface
functions have not been implemented yet vs. will
not be implemented(e.g. cortex m3).
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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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>
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