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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) 1989-1998.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* 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.
*
* Modifications of respective RTEMS file: COPYRIGHT (c) 1994.
* EISCAT Scientific Association. M.Savitski
*
* This material is a part of the MVME162 Board Support Package
* for the RTEMS executive. Its licensing policies are those of the
* RTEMS above.
*
* $Id$
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <page_table.h>
#include <libcsupport.h>
#include <string.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 );
/*
* 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)
{
extern int end;
rtems_unsigned32 heap_start;
heap_start = (rtems_unsigned32) &end;
if (heap_start & (CPU_ALIGNMENT-1))
heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
bsp_libc_init((void *) heap_start, 64 * 1024, 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
/*
* bsp_start
*
* This routine does the bulk of the system initialization.
*/
void bsp_start( void )
{
m68k_isr_entry *monitors_vector_table;
int index;
/*
* 162Bug Vectors are at 0xFFE00000
* 162Bug Vectors on LX are at 0x00000000
*/
#if defined(mvme162lx)
monitors_vector_table = (m68k_isr_entry *)0x00000000;
#else
monitors_vector_table = (m68k_isr_entry *)0xFFE00000;
#endif
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 */
M68Kvec[ 47 ] = monitors_vector_table[ 47 ]; /* system call vector */
m68k_set_vbr( &M68Kvec );
/*
* You may wish to make the VME arbitration round-robin here, currently
* we leave it as it is.
*/
/* set the Interrupt Base Vectors */
lcsr->vector_base = (VBR0 << 28) | (VBR1 << 24);
page_table_init();
/*
* 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.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
Cpu_table.interrupt_stack_size = 4096;
BSP_Configuration.work_space_start = (void *)
(RAM_END - BSP_Configuration.work_space_size);
}
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