| Commit message (Collapse) | Author | Age | Files | Lines |
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The low two bits are defined as should-be-zero-or-presereved.
We'll take the zero option, it's easier to enforce.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Behave like OMAP3530: force global software reset. Given the
patch to teach ARM11 how to use these events, and use VCR to
catch the reset vector, this works better than either the
current reset logic or than using SRST.
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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Rename the existing 'flash banks' implementation as 'flash list', and
replace the broken 'flash_banks' TCL wrapper with a new command handler.
Adds documentation for the new 'flash list' command in the user guide.
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The 'flash banks' command produces a list that needs to be formatted
properly for GDB's 'mem info' to work properly. The flash_banks TCL
wrapper provided this formatting, but wrappers no longer work for
second-level commands as they did in the past. With this patch,
the 'flash_banks' command can be used with the new command syntax
and display the required information.
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When factoring the bank setup command into flash_bank_add(), I forgot
to include a call to the new helper.
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More updates from the code review by Steve Grubb <sgrubb@redhat.com>.
The Jim float-comparision bug just gets a comment not a fix, though.
Cc: Steve Grubb <sgrubb@redhat.com>.
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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Fall back to software breakpoint when vector catch isn't available.
Possible enhancements:
- add extra optional command parameter to select high vectors
- add extra optional command parameter to select hardware breakpoint
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Rename nand.h as flash/nand/core.h, chase consumers. The public APIs
need to be sorted out with imp.h, but this allows other changes to
begin improving the separation between policy and mechanism.
Moves #include <target/target.h> and #include "driver.h" into the
internal headers or source files, removing it from <flash/nand/core.h>.
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Move remaining NAND implementation files into src/flash/nand/.
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Moves commands into nand/tcl.c and core implementation to 'nand/core.c'
and 'nand/fileio.c'. Eliminates 'flash/nand.c'.
Adds 'nand/imp.h' to share routines between TCL commands and core.
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This work parallels the NOR directory, encapsulating the NAND drivers
into a separate file. This takes an extra step by encapsulating the
type of data structure used to manage the drivers, allowing it to be
changed from an array to a dynamic list in the future.
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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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Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Remove an undesirable use of the CPSR symbol ... it needs to vanish.
Flag mode-to-number stuff as obsolete; say why ... should also vanish.
Get rid of no-longer-used mode and state typedefs.
Comment a few of the implicit ties to "classic ARM".
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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And remove that old symbol.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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And make arm_state_strings[] be const.
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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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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As with Cortex-A8, the WFAR register holds useful information
that should be recorded and, where relevant, displayed.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Use the DPM watchpoint support; remove old incomplete stubs.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Tweak scanchain 7 debug messaging:
- show register addresses in decimal, matching ARM docs;
- remove some pointless noise
Avoid some needless roundtrips:
- skip SCAN_N when SCREG already holds that number (speeds up
polling and other common operations)
- avoid zeroing vcr twice on resume
Show the IR opcode as a label ("RESTART") too; and in decimal,
matching ARM docs.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Descend into the library modules in order, from bottom-to-top.
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Remove the now vestigial <flash/flash.h> header from the tree,
replacing a few references with <flash/nor/core.h>
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Move the bulk of the flash.h file into flash/nor/core.h, leaving an
empty husk that will be removed in the next patch.
The NOR driver structure is an implementation detail, so move it into
its own private header file <flash/nor/driver.h> along with helper
declaration for finding them by name.
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The flash.h header does not require the target.h header file, but
its implementation source files do. Move it to flash/nor/imp.h.
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Moves common flash errors to <flash/common.h> to decouple these two
mostly unrelated trees of code.
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Move remaining NOR flash implemenation into flash/nor/core.c
Removes flash.c from the build, leaving only its header to split.
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Encapsulates access to the flash_drivers array, providing a base
of operations for future dynamic driver module loading features.
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Splits the exec mode commands out of flash.c into the flash/nor/ files.
The routines used by these high-level commands are moved into nor/core.c,
with their internal declarations placed in nor/imp.h.
Fixes distribution of <flash/nor/core.h> header.
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Clean up arm_semihosting() entry a bit, comment some issues and just
which SVC opcodes are getting intercepted. Microcontroller profile
cores will need a new entry, since they use BKPT instead (and don't
have either SVC mode or an SPSR register).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Store a flag and errno in in "struct arm".
Have "poll" output report when semihosting is active.
Shrink some of the affected lines.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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List it in the concept index, in the section about target software
changes a project might want to consider, and in the section about
debug messaging.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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When tools are not installed, exit immediately. This makes
the error messages clearer.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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The newly moved flash TCL routines access the internals of the module
too much. Fix the layering issues by adding new core NOR flash APIs:
<flash/nor/core.h>:
- flash_driver_find_by_name() - self-descriptive
<flash/nor/imp.h>:
- flash_bank_add() - encapsulates adding banks to bank list
- flash_bank_list() - encapsulates retreiving bank list
This allows the externs in flash/nor/imp.h to be removed, and
these mechanisms may now be re-used by other flash module code.
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Moves the top-level 'flash' command handlers into flash/nor/tcl.c,
with flash/nor/imp.h providing an internal implementation header
to share non-public API components.
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After previous efforts, only one Jim routine remained in jtag/core.c,
and moving it to jtag/tcl.c painlessly finishes separating these layers.
The headers need separating, but the implementation is clean.
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Commands that do not need to use Jim should be registered as
high-level command handlers.
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When calling module_register_commands, the return value needs to be
checked for failures. Instead of duplicating code, use an array of
function pointers to the identical registration functions to iterate
over during startup.
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Help alleviate further potential problems with interactive startup.
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Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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The bug in revC register memory access is pretty much
cornered now.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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Semihosting enables code running on an ARM target to use the
I/O facilities on the host computer. The target application must
be linked against a library that forwards operation requests by
using the SVC instruction that is trapped at the Supervisor Call
vector by the debugger. The "hosted" library version provided
with CodeSourcery's Sourcery G++ Lite for ARM EABI is one example.
This is currently available for ARM9 processors, but any ARM
variant should be able to support this with little additional work.
Tested using binaries compiled with Sourcery G++ Lite 2009q1-161
and ARM RVCT 3.0.
[dbrownell@users.sourceforge.net: doc tweaks, NEWS]
Signed-off-by: Nicolas Pitre <nico@marvell.com>
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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Updates the ARM NAND I/O code to look at and update the op
field of arm_nand_data to reflect the last operation performed.
It uses this field to copy the correct code to the target in the
case where the struct is used for reads and writes.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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