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2008-09-14 Joel Sherrill <joel.sherrill@oarcorp.com>

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* Makefile.am, configure.ac, startup/bspstart.c: Create
	bsp_get_work_area() into its own file and use BSP Framework to
	perform more initialization.
	* startup/bspgetworkarea.c: New file.
This commit is contained in:
Joel Sherrill
2008-09-14 21:44:01 +00:00
parent 6a39cd4fec
commit e95cf8c9d5
5 changed files with 48 additions and 43 deletions
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7
c/src/lib/libbsp/mips/rbtx4925/ChangeLog
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@@ -1,3 +1,10 @@
2008-09-14 Joel Sherrill <joel.sherrill@oarcorp.com>
* Makefile.am, configure.ac, startup/bspstart.c: Create
bsp_get_work_area() into its own file and use BSP Framework to
perform more initialization.
* startup/bspgetworkarea.c: New file.
2008-09-10 Joel Sherrill <joel.sherrill@oarcorp.com>
* include/bsp.h: Review of all bsp_cleanup() implementations. In this

1
c/src/lib/libbsp/mips/rbtx4925/Makefile.am
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@@ -28,6 +28,7 @@ project_lib_DATA = start.$(OBJEXT)
dist_project_lib_DATA += startup/linkcmds
startup_SOURCES = ../../shared/bspclean.c ../../shared/bsppredriverhook.c \
../../shared/bsppretaskinghook.c startup/bspgetworkarea.c \
../../shared/bsplibc.c ../../shared/bsppost.c startup/bspstart.c \
../../shared/bootcard.c ../../shared/sbrk.c \
../../shared/gnatinstallhandler.c ../../shared/setvec.c \

2
c/src/lib/libbsp/mips/rbtx4925/configure.ac
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@@ -16,6 +16,8 @@ RTEMS_PROG_CC_FOR_TARGET([-ansi -fasm])
RTEMS_CANONICALIZE_TOOLS
RTEMS_PROG_CCAS
RTEMS_BSP_BOOTCARD_HANDLES_RAM_ALLOCATION
# Explicitly list all Makefiles here
AC_CONFIG_FILES([Makefile])
AC_OUTPUT

38
c/src/lib/libbsp/mips/rbtx4925/startup/bspgetworkarea.c Normal file
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@@ -0,0 +1,38 @@
/*
* 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.
*
* $Id$
*/
#include <bsp.h>
#include <bsp/bootcard.h>
#include <stdint.h>
extern void *_RamBase;
extern void *_RamSize;
extern void *end;
/*
* This method returns the base address and size of the area which
* is to be allocated between the RTEMS Workspace and the C Program
* Heap.
*/
void bsp_get_work_area(
void **work_area_start,
size_t *work_area_size,
void **heap_start,
size_t *heap_size
)
{
uintptr_t size;
size = (uintptr_t)&_RamBase + (uintptr_t)&_RamSize - (uintptr_t)&end;
*work_area_start = (void *)&end;
*work_area_size = size;
*heap_start = BSP_BOOTCARD_HEAP_USES_WORK_AREA;
*heap_size = BSP_BOOTCARD_HEAP_SIZE_DEFAULT;
}

43
c/src/lib/libbsp/mips/rbtx4925/startup/bspstart.c
View File

@@ -18,59 +18,16 @@
#include <bsp.h>
#include <rtems/libio.h>
#include <rtems/libcsupport.h>
#define LIBC_HEAP_SIZE (64 * 1024)
extern int end; /* defined by linker */
/*
* Use the shared implementations of the following routines
*/
void bsp_libc_init( void *, uint32_t, int );
void init_exc_vecs(void);
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void bsp_pretasking_hook(void)
{
uint32_t heap_start;
heap_start = (uint32_t) &end;
if (heap_start & (CPU_ALIGNMENT-1))
heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
bsp_libc_init((void *) heap_start, LIBC_HEAP_SIZE, 0);
}
/*
* bsp_start
*
* This routine does the bulk of the system initialization.
*/
void bsp_start( void )
{
extern int WorkspaceBase;
extern void mips_install_isr_entries(void);
Configuration.work_space_start =
(void *)((uint64_t)((&end) + LIBC_HEAP_SIZE + 0x100) & ~0x7);
mips_install_isr_entries(); /* Install generic MIPS exception handler */
}