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/*
* This routine starts the application. It includes application,
* board, and monitor specific initialization and configuration.
* The generic CPU dependent initialization has been performed
* before this routine is invoked.
*
* COPYRIGHT (c) 1989-1999.
* 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.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <string.h>
#include <bsp.h>
#include <rtems/libio.h>
#include <rtems/libcsupport.h>
/*
* The original table from the application and our copy of it with
* some changes.
*/
extern rtems_configuration_table Configuration;
rtems_configuration_table BSP_Configuration;
rtems_cpu_table Cpu_table;
char *rtems_progname;
/*
* Use the shared implementations of the following routines
*/
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
void bsp_pretasking_hook(void); /* m68k version */
/*
* bsp_start
*
* This routine does the bulk of the system initialization.
*/
void bsp_start( void )
{
m68k_isr_entry *monitors_vector_table;
int index;
void *vbr;
extern void *_WorkspaceBase;
extern void *_RamSize;
extern unsigned long _M68k_Ramsize;
_M68k_Ramsize = (unsigned long)&_RamSize; /* RAM size set in linker script */
monitors_vector_table = (m68k_isr_entry *)0; /* Monitor Vectors are at 0 */
m68k_set_vbr( monitors_vector_table );
for ( index=2 ; index<=255 ; index++ )
M68Kvec[ index ] = monitors_vector_table[ 32 ];
M68Kvec[ 2 ] = monitors_vector_table[ 2 ]; /* bus error vector */
M68Kvec[ 4 ] = monitors_vector_table[ 4 ]; /* breakpoints vector */
M68Kvec[ 9 ] = monitors_vector_table[ 9 ]; /* trace vector */
/*
* Uncommenting this seems to confuse/break the monitor on this board.
* It probably assumes the vector table is at 0.
*/
/* m68k_set_vbr( &M68Kvec ); */
/*
* Adjust the VMEbus mode to round-robin.
*/
/*
* This is only apparent with the shared memory driver which has not
* yet been supported on this target.
*/
rtems_cache_enable_instruction();
/*
* we only use a hook to get the C library initialized.
*/
Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
Cpu_table.postdriver_hook = bsp_postdriver_hook;
Cpu_table.do_zero_of_workspace = TRUE;
Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
m68k_get_vbr( vbr );
Cpu_table.interrupt_vector_table = vbr;
BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
/* Clock_exit is done as an atexit() function */
}
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