hal_priv.c

ecos为实时嵌入式操作系统

//===========================================================================
//
//      hal_priv.c
//
//      SPARClite Architecture sim-specific private variables
//
//===========================================================================
//####COPYRIGHTBEGIN####
//
// -------------------------------------------
// The contents of this file are subject to the Cygnus eCos Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License.  You may obtain a copy of the License at
// http://sourceware.cygnus.com/ecos
// 
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
// License for the specific language governing rights and limitations under
// the License.
// 
// The Original Code is eCos - Embedded Cygnus Operating System, released
// September 30, 1998.
// 
// The Initial Developer of the Original Code is Cygnus.  Portions created
// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
// -------------------------------------------
//
//####COPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    hmt
// Contributors: hmt
// Date:         1999-02-20
// Purpose:      private vars for SPARClite sim.
//              
//####DESCRIPTIONEND####
//
//===========================================================================


#include <cyg/hal/hal_intr.h>
#include <cyg/hal/hal_arch.h>

// ------------------------------------------------------------------------
// Clock static to keep period recorded.
cyg_int32 cyg_hal_sparclite_clock_period = 0;

// ------------------------------------------------------------------------
// Board specific startups.

extern void hal_board_prestart( void );
extern void hal_board_poststart( void );

#define WATCHDOG()     *((int *)0x01f80064) = (int)0x00000000 // watchdog off

void hal_board_prestart( void )
{
    WATCHDOG();                         // Turn off the ERC32 watchdog.
}

void hal_board_poststart( void )
{
    HAL_ENABLE_INTERRUPTS();
    // OK to do this post constructors, and good for testing.
}

// EOF hal_priv.c