Subversion Repositories openrisc_2011-10-31

/*
 *  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: bspstart.c,v 1.2 2001-09-27 12:00:08 chris Exp $
 */
 
#include <bsp.h>
#include <rtems/libio.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 );
void bsp_pretasking_hook(void);               /* m68k version */
 
/*
 *  bsp_start
 *
 *  This routine does the bulk of the system initialization.
 */
 
void bsp_start( void )
{
  extern void *_WorkspaceBase;
 
  /*
   *  _M68k_Ramsize is the amount of RAM on this board and
   *  is set by many m68k BSPs at this point.  With this
   *  BSP, it is dynamically set in start.S.
   */
 
 
  /*
   *  Allocate the memory for the RTEMS Work Space.  This can come from
   *  a variety of places: hard coded address, malloc'ed from outside
   *  RTEMS world (e.g. simulator or primitive memory manager), or (as
   *  typically done by stock BSPs) by subtracting the required amount
   *  of work space from the last physical address on the CPU board.
   */
 
  /*
   *  Need to "allocate" the memory for the RTEMS Workspace and
   *  tell the RTEMS configuration where it is.  This memory is
   *  not malloc'ed.  It is just "pulled from the air".
   */
 
  BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;
 
  /*
   *  initialize the CPU table for this BSP
   */
 
  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;
}