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/*
* This set of routines starts the application. It includes application,
* board, and monitor specific initialization and configuration.
* The generic CPU dependent initialization has been performed
* before any of these are 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 <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;
/*
* Use the shared implementations of the following routines
*/
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
extern void bsp_spurious_initialize();
/*
* bsp_pretasking_hook
*
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*/
void bsp_pretasking_hook(void)
{
extern void *_HeapStart;
extern rtems_unsigned32 _HeapSize;
bsp_libc_init(&_HeapStart, (unsigned int) &_HeapSize, 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
bsp_spurious_initialize();
}
/*
* bsp_start
*
* This routine does the bulk of the system initialization.
*/
#include <bspIo.h>
BSP_output_char_function_type BSP_output_char;
BSP_polling_getchar_function_type BSP_poll_char;
extern void C4X_BSP_output_char(char c);
void bsp_start( void )
{
extern void *_WorkspaceBase;
extern rtems_unsigned32 _WorkspaceMax;
/*
* Set up our hooks
* Make sure libc_init is done before drivers initialized so that
* they can use atexit()
*/
Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
Cpu_table.postdriver_hook = bsp_postdriver_hook;
/*
* SIS does zero out memory BUT only when IT begins execution. Thus
* if we want to have a clean slate in the workspace each time we
* begin execution of OUR application, then we must zero the workspace.
*/
Cpu_table.do_zero_of_workspace = FALSE;
/*
* This should be enough interrupt stack.
*/
Cpu_table.interrupt_stack_size = 0;
BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;
/* XXX check to see if satisfying small memory model */
if ( BSP_Configuration.work_space_size > (int) &_WorkspaceMax )
rtems_fatal_error_occurred( 0x43218765 );
BSP_output_char = C4X_BSP_output_char;
BSP_poll_char = (BSP_polling_getchar_function_type) NULL;
}
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