#ident "kit/IDT465/sbdbfrom.c: Copyright (c) MIPS Technologies, Inc. All rights reserved."

/*
 * Copyright (c) 1999-2003 MIPS Technologies, Inc.
 * 
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 *      * Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *      * Redistributions in binary form must reproduce the above
 *      copyright
 *        notice, this list of conditions and the following disclaimer
 *        in the documentation and/or other materials provided with
 *        the distribution.
 *      * Neither the name of MIPS Technologies Inc. nor the names of its
 *        contributors may be used to endorse or promote products derived
 *        from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * IDT465/sbdbfrom.c: 8-bit flash ROM support for IDT 79RS465 board
 */


#ifdef IN_PMON
#include "pmon.h"
#include "sde-compat.h"
#include <assert.h>
#else
#include <sys/types.h>
#include <mips/cpu.h>
#include <stdlib.h>
#include "kit_impl.h"
#endif

/* 8-bit parameters */
#define FROM_NCOLS	1
#define FROM_GROUP	1
#define FLASHROM_INLINE

#include "flashdev.h"
#include "sbd.h"
#include "sbdfrom.h"
#include "flashrom.h"

#if _SBD_FLASHWIDTH != 32

/* writable cookie */
static struct fromcookie cookie;

struct fromcookie *
_sbd_bflashopen (paddr_t devaddr)
{
    struct fromcookie *fcp = &cookie;

    if (fcp->size == 0) {
	/* programming base address may be different from read address */
	fcp->pbase = PA_TO_KVA1 (FLASH_BASE);

	/* cached accesses to PROM/FLASH work */
	fcp->rbase = PA_TO_KVA0 (FLASH_BASE);
	
	/* probe for device */
	fcp->nbanks = 1;
	if (_flashrom_probe (fcp, 0) < 0)
	    return NULL;

	/* compute total size */
	fcp->size= (fcp->devsize << FROM_NCOLS_LOG2) * fcp->nbanks;
    }

    return fcp;
}

/* include code inline since other widths will need a different copy */
#include "../share/flashrom.c"

#endif /* _SBD_FLASHWIDTH != 32 */
