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authorJoel Sherrill <joel.sherrill@OARcorp.com>2009-11-23 20:09:58 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2009-11-23 20:09:58 +0000
commitc23e29effa1e89467a26075125193452753929cb (patch)
tree29230abe008a8260c12f1277fd97a586fc4ff3c7 /c
parent2009-11-23 Joel Sherrill <joel.sherrill@OARcorp.com> (diff)
downloadrtems-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/ChangeLog6
-rw-r--r--c/src/lib/libbsp/sparc/leon2/Makefile.am6
-rw-r--r--c/src/lib/libbsp/sparc/leon2/startup/bspstart.c46
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();
+}