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Update #3269.
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Update #3269.
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Move _ISR_Handler() to a separate file since it is now only used if a handler
is installed by _CPU_ISR_install_raw_handler().
Statically initialize the traps for external interrupts to use the new
_SPARC_Interrupt_trap() which directly dispatches the interrupt handlers
installed by rtems_interrupt_handler_install() via the BSP-provided
_SPARC_Interrupt_dispatch().
Since the trap table is now fully statically initialized, there is no longer a
dependency on the Cache Manager in the default configuration.
Update #4458.
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Avoid using set_vector() which depends on _ISR_Vector_table(). Prepare for a
statically initialized trap table.
Update #4458.
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Statically initialize the trap table in start.S to jump to _SPARC_Bad_trap()
for all unexpected traps. This enables a proper RTEMS fatal error handling
right from the start. Do not rely on the stack and register settings which
caused an unexpected trap. Use the ISR stack of the processor to do the fatal
error handling. Save the full context which caused the trap. Fatal error
handler may use it for error logging.
Unify the _CPU_Exception_frame_print() implementations and move it to cpukit.
Update #4459.
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Update #3706.
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- Use CamelCase as it is not used in our C code. Enables simple search and
replace.
- Prefix with "RTEMS" to aid deployment and integration. It aids
searching and sorting.
Update #3706.
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Avoid assert() in console_inbyte_nonblocking().
Do not poll forever in bsp_in_char(). This allows the caller to decide
what to do if no character is available.
This entangles some dependencies and fixes a spconfig02 test failure.
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A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.
This has at least seven problems:
* The make preinstall step itself needs time and disk space.
* Errors in header files show up in the build tree copy. This makes it
hard for editors to open the right file to fix the error.
* There is no clear relationship between source and build tree header
files. This makes an audit of the build process difficult.
* The visibility of all header files in the build tree makes it
difficult to enforce API barriers. For example it is discouraged to
use BSP-specifics in the cpukit.
* An introduction of a new build system is difficult.
* Include paths specified by the -B option are system headers. This
may suppress warnings.
* The parallel build had sporadic failures on some hosts.
This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.
The new cpukit include directories are:
* cpukit/include
* cpukit/score/cpu/@RTEMS_CPU@/include
* cpukit/libnetworking
The new BSP include directories are:
* bsps/include
* bsps/@RTEMS_CPU@/include
* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include
There are build tree include directories for generated files.
The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.
The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.
Update #3254.
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Update #3254.
Update #3260.
Update #3269.
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Call bsp_work_area_initialize() before bsp_start(). This allows
bsp_start() to use malloc() etc. which is beneficial for systems with a
plug-and-play hardware enumeration.
Update #2408.
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This was done by the following script run from libbsp:
find * -name bsp.h | xargs -e grep -l "#ifndef.*_BSP_H" | while read b
do
echo $b
cpu=`echo $b | cut -d'/' -f1 | tr '[:lower:]' '[:upper:]' `
bsp=`echo $b | cut -d'/' -f2 | tr '[:lower:]' '[:upper:]' `
g="LIBBSP_${cpu}_${bsp}_BSP_H"
# echo $g
sed -e "s/ifndef _BSP_H/ifndef ${g}/" \
-e "s/define _BSP_H/define ${g}/" \
-i $b
done
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Most drivers use the Driver Manager for device probing, they
work on AMBA-over-PCI systems if PCI is big-endian.
New APIs:
* GPIO Library, interfaced to GRGPIO
* GENIRQ, Generic interrupt service implementation helper
New GRLIB Drivers:
* ACTEL 1553 RT, user interface is similar to 1553 BRM driver
* GR1553 (1553 BC, RT and BM core)
* AHBSTAT (AHB error status core)
* GRADCDAC (Core interfacing to ADC/DAC hardware)
* GRGPIO (GPIO port accessed from GPIO Library)
* MCTRL (Memory controller settings configuration)
* GRETH (10/100/1000 Ethernet driver using Driver manager)
* GRPWM (Pulse Width Modulation core)
* SPICTRL (SPI master interface)
* GRSPW_ROUTER (SpaceWire Router AMBA configuration interface)
* GRCTM (SpaceCraft on-board Time Management core)
* SPWCUC (Time distribution over SpaceWire)
* GRTC (SpaceCraft up-link Tele core)
* GRTM (SpaceCraft down-link Tele Metry core)
GR712RC ASIC specific interfaces:
* GRASCS
* CANMUX (select between OCCAN and SATCAN)
* SATCAN
* SLINK
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With this patch the LEON family can access the GRLIB GPTIMER using
the Timer library (TLIB).
A System Clock driver instead of BSP/clock/ck_init.c is provided
using the TLIB. The classic clock driver is split in two parts,
clock driver and timer driver. The BSPs need only to fullfill the
timer interface instead of the clock interface. Currently only
LEON3 uses it. The LEON2 Timer is not ported to TLIB.
The GPTIMER driver is implemented using the Driver Manager, so the
System Clock Driver is at this point only suitable for LEON3 when
the driver manager is initialized during BSP startup. When the DrvMgr
is not initialized during startup the standard BSP/clock dirver is
used.
LEON2 sometimes also needs to access GPTIMER when a off-chip GRLIB AMBA
systems is connected, for example AMBA-over-PCI.
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This allows it to be wrapped by another function at link-time
and can be used to trace interrupts. If not placed in a separate
file, the function pointer address used in BSP_shared_interrupt_init
will be resolved at compile-time, and the function will not be wrappable.
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Some includes may use C++ and this conflicts if surrounded extern "C".
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Instead of calling the system call TA instruction directly it
is better paractise to isolate the trap implementation to the
system call functions.
BSP_fatal_exit() is added.
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Add doxygen to the header files in sparc/shared/include directory.
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Include <bsp/default-initial-extension.h> in all BSPs. Call
rtems_fatal() with RTEMS_FATAL_SOURCE_EXIT as source and the exit()
status code as fatal code in every bsp_cleanup(). Move previous
bsp_cleanup() code into bsp_fatal_extension().
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The bsp_fatal_extension() will call BSP_fatal_return().
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The work areas (RTEMS work space and C program heap) will be initialized
now in a separate step and are no longer part of
rtems_initialize_data_structures(). Initialization is performed with
tables of Heap_Area entries. This allows usage of scattered memory
areas present on various small scale micro-controllers.
The sbrk() support API changes also. The bsp_sbrk_init() must now deal
with a minimum size for the first memory chunk to take the configured
work space size into account.
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The implementation use IRQ number instead of vector number since
some IRQs does not have a unique vector, for example the extended
interrupts all enter the same trap vector entry.
Added support for the LEON3 extended interrupt controller when using
the shared IRQ layer.
ERC32 patches untested.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Regenerate
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If bsp_early_malloc() is called early during boot room will be
allocated after BSS END. If the function is called after boot
is will call malloc() instead. The returned memory is not freeable
and always 8-byte aligned.
If the bsp_early_malloc() isn't called the function is not
dragged in and the workspace will be unmodified in size.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
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When data cache snooping is not present the cache needs
flushing, the SPARC LEON CPUs does not have to ability
to flush individual cache rows and flushing all cache is
expensive. Instead the LDA instruction is used to force
cache miss on individual loads during the IP-align copy
operation required anyway.
GRETH GBIT non-snooping systems are still unsupported,
since it use zero-copy (can deal with unaligned DMA).
Let the bsp.h select if the GRETH driver is supported.
Currently only the LEON2/LEON3 platforms BSPs builds the
driver.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
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Moved the intelligence whether the driver is supported or not
completely to the BSP, now that bsp.h is included (even though it
is a driver... hmm). The ERC32 was never supported, so HAS_SMC91111
is not added to erc32/include/bsp.h.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
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PR 1783/bsps
* include/bsp.h: Remove dead prototypes of Clock_delay() and delay().
Neither had bodies.
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* Makefile.am, include/bsp.h, startup/setvec.c: Split idle method into
its own file. Properly note to confdefs.h that this BSP has its own
idle thread.
* startup/bspidle.c: New file.
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* include/bsp.h: Review of all bsp_cleanup() implementations. In this
phase, all prototypes were removed from bsp.h and empty
implementations were removed and made to use the shared stub.
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* clock/ckinit.c, include/bsp.h: Eliminate copies of the Configuration
Table. Use the RTEMS provided accessor macros to obtain configuration
fields.
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* include/bsp.h: Move interrupt_stack_size field from CPU Table to
Configuration Table. Eliminate CPU Table from all ports. Delete
references to CPU Table in all forms.
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* include/bsp.h: LEON2 and LEON3 Data cache snooping detection on
startup, for drivers. (LEON2,3 are configurable processors, they can
be with or without DCache snooping. Caches without snooping needs the
drivers to flush cache or use the sparc instruction lda to force
cache miss...)
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* include/bsp.h: This patch prepares bsp.h so that shared code (new
drivers) can easily have small small sections of BSP specific code.
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* console/debugputs.c, include/bsp.h, leon_smc91111/leon_smc91111.c,
startup/spurious.c: Remove debug print methods that are redundant
with prntk and replace their use with printk.
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PR 1227/bsps
* include/bsp.h: Remove MAX_LONG_TEST_DURATION and
MAX_SHORT_TEST_DURATION. They are obsolete and unused.
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