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author | Martin Galvan <martin.galvan@tallertechnologies.com> | 2015-02-26 17:31:27 -0300 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-02-27 12:05:36 +0100 |
commit | 991fdb330be81c5cfb47f67fd032569809db6c41 (patch) | |
tree | 5368daedc8eba6ec32129d49e747bdd38c23eab0 /c/src/lib/libbsp/arm/tms570 | |
parent | ARM: Fix _ARMV4_Exception_fiq_default (diff) | |
download | rtems-991fdb330be81c5cfb47f67fd032569809db6c41.tar.bz2 |
ARM: Add BSP_START_NEEDS_REGISTER_INITIALIZATION
This patch adds the macro BSP_START_NEEDS_REGISTER_INITIALIZATION and
three hooks for BSP-specific register init code to arm/shared/start.S.
Said hooks are bsp_start_init_registers_core (intended for initializing
the ARM core registers), bsp_start_init_registers_banked_fiq (for the
FIQ mode banked registers) and bsp_start_init_registers_vfp (for the FPU
registers). BSP_START_NEEDS_REGISTER_INITIALIZATION would be defined in
a BSP's configure.ac (so that it appears in its bspopts.h).
This patch also adds the register init code required by the TMS570.
We've tested it with the tms570ls3137_hdk.cfg config and it works fine.
Diffstat (limited to 'c/src/lib/libbsp/arm/tms570')
-rw-r--r-- | c/src/lib/libbsp/arm/tms570/Makefile.am | 1 | ||||
-rw-r--r-- | c/src/lib/libbsp/arm/tms570/configure.ac | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/tms570/Makefile.am b/c/src/lib/libbsp/arm/tms570/Makefile.am index bf3465db66..6cad609480 100644 --- a/c/src/lib/libbsp/arm/tms570/Makefile.am +++ b/c/src/lib/libbsp/arm/tms570/Makefile.am @@ -82,6 +82,7 @@ libbsp_a_SOURCES += ../../shared/cpucounterdiff.c # Startup libbsp_a_SOURCES += ../shared/startup/bsp-start-memcpy.S +libbsp_a_SOURCES += ../shared/startup/bsp-start-init-registers.S libbsp_a_SOURCES += ../../shared/bsppretaskinghook.c libbsp_a_SOURCES += startup/bspreset.c libbsp_a_SOURCES += startup/bspstart.c diff --git a/c/src/lib/libbsp/arm/tms570/configure.ac b/c/src/lib/libbsp/arm/tms570/configure.ac index cefe50a5be..e06d4e4047 100644 --- a/c/src/lib/libbsp/arm/tms570/configure.ac +++ b/c/src/lib/libbsp/arm/tms570/configure.ac @@ -36,6 +36,11 @@ RTEMS_BSPOPTS_SET([BSP_MINIMUM_TASK_STACK_SIZE],[*],[1024]) RTEMS_BSPOPTS_HELP([BSP_MINIMUM_TASK_STACK_SIZE],[Suggested minimum task stack size in bytes]) +RTEMS_BSPOPTS_SET([BSP_START_NEEDS_REGISTER_INITIALIZATION],[*],[1]) +RTEMS_BSPOPTS_HELP([BSP_START_NEEDS_REGISTER_INITIALIZATION], + [The TMS570 needs to have the registers of its CPU initialized + to avoid CCMR4F errors]) + RTEMS_BSPOPTS_SET([TMS570_OSCILLATOR_MAIN],[*],[12000000U]) RTEMS_BSPOPTS_HELP([TMS570_OSCILLATOR_MAIN],[main oscillator frequency in Hz]) |