sdram.h

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/* ************************************************************************

Copyright (c) 2006, Atmel Corporation All rights reserved.

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modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the
following disclaimer.

2. 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.

3. The name of ATMEL may not be used to endorse or promote products
derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ATMEL ``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 EXPRESSLY AND SPECIFICALLY
DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,
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************************************************************************ */

#ifndef _SDRAM_H_
#define _SDRAM_H_

#include <avr32/io.h>
#include "errno.h"

#define MODE_NORMAL             0

#define MODE_NOP                1

#define MODE_PRECHARGE          2

#define MODE_LOAD_MR            3

#define MODE_AUTOREFRESH        4

#define MODE_EXT_LOAD_MR        5

#define MODE_POWER_DOWN         6

typedef struct sdram_info
{
  unsigned int phys_addr;

  unsigned char bus_width;

  unsigned int rows;

  int cols;

  int banks;

  unsigned int cas;

  unsigned int twr;

  unsigned int trc;

  unsigned int trp;

  unsigned int trcd;

  unsigned int tras;

  unsigned int txsr;

}sdram_info;


int sdram_init(const sdram_info *info);

#endif

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