plf_redboot_linux_exec.c

来自「eCos操作系统源码」· C语言 代码 · 共 81 行

//==========================================================================
//
//      plf_redboot_linux_boot.c
//
//      Platform support for RedBoot command to boot Linux
//
//==========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
// Copyright (C) 2002, 2003 Gary Thomas
//
// 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):    gthomas
// Contributors: 
// Date:         2003-08-28
// Purpose:      
// Description:  
//              
// This code is part of RedBoot (tm).
//
//####DESCRIPTIONEND####
//
//==========================================================================

#include <cyg/hal/hal_arch.h>
#include <cyg/hal/hal_if.h>
#include <cyg/hal/hal_intr.h>
#include <cyg/hal/hal_cache.h>
#include <cyg/hal/ppc_regs.h>
#include <cyg/hal/redboot_linux_exec.h>

//
// Export system configuration - used when booting a Linux kernel
// Note: this function is expected to set up the fields which are
// platform/variant dependent.  It may also override any of the
// architecture common fields (like memory layout, etc) as appropriate
//
externC void 
plf_redboot_linux_exec(bd_t *board_info)
{
    board_info->bi_intfreq	= CYGHWR_HAL_POWERPC_BOARD_SPEED*1000000;
    board_info->bi_busfreq	= 66*1000000;
    board_info->bi_flashbase    = 0xFE000000;
    board_info->bi_flashsize    = 0x00800000;
    board_info->bi_flashwidth   = 16;
}

//=========================================================================
// EOF plf_redboot_linux_exec.c