include/asm-avr32/sdram.h

   1 /*
   2  * Copyright (C) 2006 Atmel Corporation
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22 #ifndef __ASM_AVR32_SDRAM_H
  23 #define __ASM_AVR32_SDRAM_H
  24
  25 struct sdram_info {
  26         unsigned long phys_addr;
  27         unsigned int row_bits, col_bits, bank_bits;
  28         unsigned int cas, twr, trc, trp, trcd, tras, txsr;
  29
  30         /* SDRAM refresh period in cycles */
  31         unsigned long refresh_period;
  32 };
  33
  34 extern unsigned long sdram_init(const struct sdram_info *info);
  35
  36 #endif /* __ASM_AVR32_SDRAM_H */