diff options
author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2009-11-23 20:09:58 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2009-11-23 20:09:58 +0000 |
commit | c23e29effa1e89467a26075125193452753929cb (patch) | |
tree | 29230abe008a8260c12f1277fd97a586fc4ff3c7 /c | |
parent | 2009-11-23 Joel Sherrill <joel.sherrill@OARcorp.com> (diff) | |
download | rtems-c23e29effa1e89467a26075125193452753929cb.tar.bz2 |
2009-11-23 Joel Sherrill <joel.sherrill@OARcorp.com>
* Makefile.am: sparc/shared/bspstart.c was really leon2 specific. So
move it here.
* startup/bspstart.c: New file.
Diffstat (limited to 'c')
-rw-r--r-- | c/src/lib/libbsp/sparc/leon2/ChangeLog | 6 | ||||
-rw-r--r-- | c/src/lib/libbsp/sparc/leon2/Makefile.am | 6 | ||||
-rw-r--r-- | c/src/lib/libbsp/sparc/leon2/startup/bspstart.c | 46 |
3 files changed, 55 insertions, 3 deletions
diff --git a/c/src/lib/libbsp/sparc/leon2/ChangeLog b/c/src/lib/libbsp/sparc/leon2/ChangeLog index 3fe1dc2181..3fda0bab47 100644 --- a/c/src/lib/libbsp/sparc/leon2/ChangeLog +++ b/c/src/lib/libbsp/sparc/leon2/ChangeLog @@ -1,3 +1,9 @@ +2009-11-23 Joel Sherrill <joel.sherrill@OARcorp.com> + + * Makefile.am: sparc/shared/bspstart.c was really leon2 specific. So + move it here. + * startup/bspstart.c: New file. + 2009-10-21 Ralf Corsépius <ralf.corsepius@rtems.org> * make/custom/leon2.cfg: Remove RTEMS_BSP_FAMILY. diff --git a/c/src/lib/libbsp/sparc/leon2/Makefile.am b/c/src/lib/libbsp/sparc/leon2/Makefile.am index 510e376e3e..44880017f0 100644 --- a/c/src/lib/libbsp/sparc/leon2/Makefile.am +++ b/c/src/lib/libbsp/sparc/leon2/Makefile.am @@ -56,9 +56,9 @@ libbsp_a_SOURCES = # startup libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsplibc.c \ ../../shared/bsppost.c ../../shared/bsppredriverhook.c \ - ../../sparc/shared/bspgetworkarea.c ../../sparc/shared/bspstart.c \ - ../../shared/bootcard.c ../../shared/sbrk.c startup/setvec.c \ - startup/spurious.c startup/bspidle.c + startup/bspstart.c ../../sparc/shared/bsppretaskinghook.c \ + ../../sparc/shared/bspgetworkarea.c ../../shared/bootcard.c \ + ../../shared/sbrk.c startup/setvec.c startup/spurious.c startup/bspidle.c # gnatsupp libbsp_a_SOURCES += gnatsupp/gnatsupp.c ../../sparc/shared/gnatcommon.c # console diff --git a/c/src/lib/libbsp/sparc/leon2/startup/bspstart.c b/c/src/lib/libbsp/sparc/leon2/startup/bspstart.c new file mode 100644 index 0000000000..899c4dd8aa --- /dev/null +++ b/c/src/lib/libbsp/sparc/leon2/startup/bspstart.c @@ -0,0 +1,46 @@ +/* + * LEON2 Cache Snooping Support + * + * + * COPYRIGHT (c) 1989-2009. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * Ported to ERC32 implementation of the SPARC by On-Line Applications + * Research Corporation (OAR) under contract to the European Space + * Agency (ESA). + * + * ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995. + * European Space Agency. + * + * $Id$ + */ + +#include <bsp.h> +#include <bsp/bootcard.h> + +/* + * Tells us if data cache snooping is available + */ +int CPU_SPARC_HAS_SNOOPING; + +/* + * set_snooping + * + * Read the data cache configuration register to determine if + * bus snooping is available. This is needed for some drivers so + * that they can select the most efficient copy routines. + */ +static inline int set_snooping(void) +{ + unsigned int tmp = *(unsigned int *)0x80000014; /* Cache control register */ + return ((tmp>>23) & 1); /* Data cache snooping enabled */ +} + +void bsp_start( void ) +{ + CPU_SPARC_HAS_SNOOPING = set_snooping(); +} |