plf_misc.c

开放源码实时操作系统源码.

//=============================================================================
//
//      plf_misc.c
//
//      Platform miscellaneous code/data.
//
//=============================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):   Bob Koninckx
// Contributors:Bob Koninckx
// Date:        2001-12-11
// Purpose:     Platform specific code and data
// Description: Tables for per-platform initialization
//
//####DESCRIPTIONEND####
//
//=============================================================================

#include <pkgconf/hal.h>
#include <pkgconf/system.h>
#include <cyg/hal/hal_mem.h>            // HAL memory definitions
#include <cyg/hal/hal_if.h>             // hal_if_init

#include <cyg/hal/hal_io.h>             // IO macros
#include <cyg/hal/hal_intr.h>           // interrupt vectors
#include <cyg/hal/hal_misc.h>           // Helper functions
#include <cyg/hal/drv_api.h>            // HANDLED
#include <cyg/hal/hal_diag.h>

// The memory map is weakly defined, allowing the application to redefine
// it if necessary. Leave the table empty, the mpc555 has no cache ...
CYGARC_MEMDESC_TABLE CYGBLD_ATTRIB_WEAK = {
    CYGARC_MEMDESC_TABLE_END
};

void
hal_platform_init(void)
{  
  hal_if_init();

#if defined CYGSEM_HAL_VIRTUAL_VECTOR_DIAG  
  HAL_DIAG_INIT();
#endif

#ifdef CYGPKG_DEVS_ETH_POWERPC_EC555
  // Give the CS8900a chip a chance to complete its self-test. Cirrus prescribes
  // 10 milliseconds, so 20 should be safe
  HAL_DELAY_US(20000);
#endif
}

// EOF plf_misc.c