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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.
*
* Ported to the i386ex and submitted by:
*
* Erik Ivanenko
* University of Toronto
* erik.ivanenko@utoronto.ca
*
* $Id$
*/
void bsp_clean_up(void);
#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;
/*
* Tells us where to put the workspace in case remote debugger is present.
*/
extern rtems_unsigned32 rdb_start;
/*
* 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 heap_bottom;
rtems_unsigned32 heap_start;
rtems_unsigned32 heap_size;
heap_start = (rtems_unsigned32) &heap_bottom;
if (heap_start & (CPU_ALIGNMENT-1))
heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
heap_size = BSP_Configuration.work_space_start -(void *) heap_start ;
heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */
heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */
bsp_libc_init((void *) heap_start, heap_size, 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 )
{
/*
* we do not use the pretasking_hook.
*/
Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
Cpu_table.postdriver_hook = bsp_postdriver_hook;
Cpu_table.interrupt_table_segment = get_ds();
Cpu_table.interrupt_table_offset = (void *)Interrupt_descriptor_table;
/* changed Sept 14 STACK_MINIMUM_SIZE */
Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
#if defined(RTEMS_POSIX_API)
BSP_Configuration.work_space_size *= 3;
#endif
BSP_Configuration.work_space_start = (void *)
RAM_END - BSP_Configuration.work_space_size;
#ifdef DEBUG
printk("workspace size = 0x%x\nstart = 0x%x, RAM_END = 0x%x\n",BSP_Configuration.work_space_size, BSP_Configuration.work_space_start, RAM_END );
#endif
/*
* Account for the console's resources
*/
/*
* Init rtems_interrupt_management
*/
rtems_irq_mngt_init();
}
void bsp_clean_up(void) {
printk("bsp_cleanup called\n");
}
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