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Replaces the legacy termios API with new termios API (#3034)
Replaces the custom PL011 serial driver with RTEMS arm-pl011.
Update #3034
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Update #3706.
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This makes the @file documentation independent of the actual file name.
Update #3707.
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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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Whether the board is restarted after application finish/exit
is controlled by BSP_RESET_BOARD_AT_EXIT configure option.
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raspberrypi.h
If the raspberrypi.h has been included without preceding inclussion
of bsp.h then BSP_IS_RPI2 has not been set for Raspberry Pi 2
BSP variant and bad things happen later.
The patch includes bspopts.h by raspberrypi.h and even includes
bsp.h in critical peripherals support.
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Further documentation can be found in
https://devel.rtems.org/wiki/GSoC/2015/RaspberryPi_peripherals_and_SD_card
and test data (including sample user applications, device drivers and wiring schemes) can be found in
https://github.com/asuol/RTEMS_rpi_testing
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Added support for the new RTEMS GPIO API functions.
Test cases can be found in https://github.com/asuol/RTEMS_rpi_testing/tree/master/GPIO
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This patch adds a BSP variant for the Raspberry Pi 2. You can
build both variants by configuring with the option
--enable-rtemsbsp="raspberrypi2 raspberrypi"
For the current BSP, the only change was the peripheral register base
address and the compiler options.
The raspberrypi/make/custom rules were re-factored:
raspberrypi.inc -- Common rules
raspberrypi.cfg -- Raspberry Pi 1 specific rule/optons
raspberrypi2.cfg -- Raspberry Pi 2 specific rule/options
I tested hello, ticker, unlimited, and paranoia on both the Pi (Model A+)
and Pi 2.
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