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//==========================================================================
//
// sh_hs7729pci_flash.c
//
// Flash programming for Fujitsu/AMD device on SH HS7729PCI board
//
//==========================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, 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.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 v2.
//
// This exception does not invalidate any other reasons why a work based
// on this file might be covered by the GNU General Public License.
// -------------------------------------------
// ####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jskov
// Contributors: jskov
// Date: 2001-05-28
// Purpose:
// Description:
//
//####DESCRIPTIONEND####
//
//==========================================================================
#include <cyg/infra/cyg_type.h>
//--------------------------------------------------------------------------
// Device properties
#define CYGNUM_FLASH_INTERLEAVE (2)
#define CYGNUM_FLASH_SERIES (1)
#define CYGNUM_FLASH_WIDTH (16)
#define CYGNUM_FLASH_BASE (plf_flash_base)
static cyg_uint32 plf_flash_base;
//--------------------------------------------------------------------------
// Platform specific extras
static void plf_flash_init(void);
#define CYGHWR_FLASH_AM29XXXXX_PLF_INIT() plf_flash_init()
//--------------------------------------------------------------------------
// Now include the driver code.
#include "cyg/io/flash_am29xxxxx.inl"
//--------------------------------------------------------------------------
// Magic to determine location of flash
// This works by querying at the location where we expect the EPROM to
// be. Then the returned data is compared with the data at that location.
// If there's a match, assume that to be the location of the EPROM.
// Otherwise it's at the other location.
//
// This is done to avoid having separate configurations for the two board
// configurations. This is simple, has negligible overhead, and Just Works.
void
plf_flash_init(void)
{
flash_data_t id[2];
flash_data_t* p;
plf_flash_base = 0xa0400000;
flash_dev_query(id);
p = (flash_data_t*)0xa0400000;
if (id[0] == *p++ && id[1] == *p)
plf_flash_base = 0xa0000000;
// Make that the cached region.
plf_flash_base &= ~0x20000000;
}
// ------------------------------------------------------------------------
// EOF sh_hs7729pci_flash.c
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