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Separates various groups of files to be built in logical succession.
In each layer, the core module (target.c, nand.c, etc.) is built _after_
their helper modules (e.g. image.c, nand_ecc.c) but _before_ any of
their drivers (e.g. arm966e.c, mx3_nand.c).
This allows problems introduced at the bottom of the stack to result
in build failures as soon as possible, as the helpers and core should
wrap portions of them.
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Various cleanups of ETM related code.
- Saner error return paths
- Simplify arm7_9 init ... no need for extra zeroing!
- Shrink some lines
- Tweak some diagnostics
- Use shorter name for ETM struct type.
- Don't exit()
and similar. The diagnostics look forward to having
this ETM code work with more than just ARM7/ARM9.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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The "ARM720 uses the new inheritance/nesting scheme" patch
wrongly scrubbed a calloc() from arm720t_target_create().
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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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>
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First cut of these commands. Øyvind tinkered a bit with
the number parsing to bring it up to speed + rebased it.
Ready for testing.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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Switch to new commands in config scripts
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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- improve some names -- a "default" prefix is not descriptive
- add doxygen @todo entries for some issues
- avr8 isn't ever going to need those MMU hooks
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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mmu() works; virt2phys() fails and logs an error.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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mmu() works; virt2phys() fails and logs an error.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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And shrink a few too-long lines.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Remove forward declarations by reordering command registration.
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This patch removes the last batch of forward references from the tree,
moving the target command registration routines to the end of the file.
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This patch introduced a bug preventing flash writes from working
on Cortex-M3 targets like the STM32. Moreover, it's the wrong
approach for handling no-MMU targets.
The right way to handle no-MMU targets is to provide accessors
for physical addresses, and use them everywhere; and any code
which tries to work with virtual-to-physical mappings should use
a identity mapping (which can be defaulted).
And ... we can tell if a target has an MMU by seeing if it's
got an mmu() method. No such methood means no MMU.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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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>
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Remove extern keywords from function prototypes and wrap long lines.
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Removes 'extern' keyword from function prototypes and wraps long lines.
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Add comments (Doxygen and normal), remove unused code,
shrink some overlong lines. Get rid of a forward decl.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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This patch changes the duration_* API in several ways. First, it
updates the API to use better names. Second, string formatting has
been removed from the API (with its associated malloc). Finally, a
new function added to convert the time into seconds, which can be
used (or formatted) by the caller. This eliminates hidden calls to
malloc that require associated calls to free().
This patch also removes the useless extern keyword from prototypes,
and it eliminates the duration_t typedef (use 'struct duration').
These API also allows proper error checking, as it is possible for
gettimeofday to fail in certain circumstances.
The consumers have all been chased to use this new API as well, as
there were relatively few cases doing this type of measurement.
In most cases, the code performs additional checks for errors, but
the calling code looks much cleaner in every case.
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Reduces confusion about location of associated routines and
reduces clutter in the arm11 header.
Removes extra whitespace around the lines touched by these changes.
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Unneeded exports cause confusion about the module interfaces.
Make almost everything static in the arm11.c module.
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Make several functions be static. Shrink some of the overlong
lines. Use pure tab indents in some places that mixed in spaces.
This gives a minor object code shrink (about 2% on amd64).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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ssh://dbrownell@openocd.git.sourceforge.net/gitroot/openocd/openocd
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Resolve serious bug inserted by the "target: require working
area for physical/virtual addresses to be specified" patch.
It forced use of (invalid) virtual addresses when the MMU
was disabled, and vice versa.
Observed to break at least Cortex-M3, ARM926, ARM7TDMI whenever
work areas are used, such as during bulk writes to flash, DDR2,
SRAM, and so on.
Also, fix overlong lines and whitespace goofs.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Move various embedded target structs to the beginnings of
their containers ... pretty much the way C++ or Obj-C
would for single inheritance.
This shrinks code that accesses those embedded structs by
letting common offsets use smaller instructions. Sample
before/after sizes (on amd64):
17181 312 0 17493 4455 arm920t.o
16810 312 0 17122 42e2 arm920t.o
Where the "after" is the smaller number, with this patch
over the ones leveraging that embedding knowledge.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Remove most remaining uses of target->arch_info from ARM
infrastructure, where it hasn't already been updated.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use target_to_armv7a() etc, replacing needless pointer traversals.
Stop using X->arch_info scheme in most ARMv7-A and Cortex-A8 code.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use target_to_arm7_9(), replacing needless pointer traversals.
Also: remove now-useless contents of arm7tdmi struct; it's
almost ready to be removed.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use target_to_arm720(), replacing needless pointer traversals
and simplifying a bunch of nasty code. Stop setting arch_info
for arm720 type parts, it's not used any longer.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use target_to_xscale(), replacing needless pointer traversals
and simplifying a bunch of code.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Replace needless pointer traversals and simplify. Also remove most
remaining contents from arm9tdmi struct; it's almost removable.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use target_to_arm966(), replacing needless pointer traversals.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use target_to_arm926(), replacing needless pointer traversals
and simplifying a bunch of code.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Replace needless pointer traversals, simplify.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use target_to_arm920(), replacing needless pointer traversals
and simplifying. Stop setting arm9tdmi->arch_info for arm920
type parts, it's not used any longer.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use new target_to_cm3() and target_to_armv7m() inlines,
instead of a series of x->arch_info conversions. Remove
arch_info, since nothing uses it.
Also fix an omission: the Cortex-M3 commands didn't verify
that they were operating on that kind of target. Add comment
about the ARMv7M version of that omission.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Provide a cleaner way to handle single inheritance of targets
in C, using the same model Linux does: structs containing other
structs, un-nested via calls to a "container_of()" macro that
are packaged in typesafe inline functions.
Targets already use this containment idiom, but make it much
more complicated because they un-nest using embedded "void *"
pointers ... in chains of up to five per target, which is all
pure needless complication. (Example: arm92x core, arm9tdmi,
arm7_9, armv4_5 ... on top of the base "target" class.)
Applying this scheme consistently simplifies things, and gets
rid of many error-prone untyped pointers. It won't change any
part of the type model though -- it just simplifies things.
(And facilitates more cleanup later on.)
Rule of thumb: where there's an X->arch_info void* pointer,
access to that pointer can and should be removed. It may be
convenient to set up pointers to some of the embedded structs;
and shrink their current "*_common" names (annoyingly long).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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The forward decls are just code clutter; remove them, by moving
their references after definitions. This is another file which
never needed even one internal forward declaration.
Also shrink a few overly-long lines with function declarations
or definitions; get rid of arm7tdmi_register_commands(), it's
not needed (just delegated); minor whitespace declutter.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Unneeded exports cause confusion about the module interfaces.
Make all functions static. Add a short header comment.
The forward decls are just code clutter; remove them, by moving
their references after definitions. This is another file which
never needed even one internal forward declaration.
Remove unneeded indirection for the write_memory() method. Make
a table static, remove a can't-happen case with nasty exit().
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Unneeded exports cause confusion about the module interfaces.
Make most functions static.
The forward decls are just code clutter; remove them, by moving
their references after definitions. This is another file which
never needed even one internal forward declaration.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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The forward decls are just code clutter; remove them, by moving
their references after definitions. This is another file which
never needed even one internal forward declaration.
Also shrink a few overly-long lines with function declarations
or definitions.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Unneeded exports cause confusion about the module interfaces.
Make most functions static.
The forward decls are just code clutter; remove them, by moving
their references after definitions. This is another file which
never needed even one internal forward declaration.
Also remove needless arm966e_init_target(), in favor of the
arm9tdmi routine to which it delegates its work.
This saved over 100 bytes of code on x86_32.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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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>
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Unneeded exports cause confusion about the module interfaces.
Make most functions static. Add a short header comment.
The forward decls are just code clutter; remove them, by moving
their references after definitions. This is another file which
never needed even one internal forward declaration.
This saved almost 900 bytes of code on x86_32; it seems the
compiler can leverage its knowledge that these functions are
not called from the outside world...
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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