board/ssv/adnpesc1/flash.c

   1 /*
   2  * (C) Copyright 2000-2004
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * (C) Copyright 2004, Li-Pro.Net <www.li-pro.net>
   6  * Stephan Linz <linz@li-pro.net>
   7  *
   8  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  */
  26
  27
  28 #include <common.h>
  29 #include <nios.h>
  30
  31 /*
  32  * include common flash code (for ssv boards)
  33  */
  34 #include "../common/flash.c"
  35
  36 /*---------------------------------------------------------------------*/
  37 #define BANKSZ  (8 * 1024 * 1024)
  38 #define SECTSZ  (64 * 1024)
  39 #define UBOOTSECS ((CONFIG_SYS_MONITOR_LEN + CONFIG_ENV_SIZE) / SECTSZ)
  40 #define UBOOTAREA (UBOOTSECS * 64 * 1024)       /* monitor / env area */
  41
  42 /*---------------------------------------------------------------------*/
  43 unsigned long flash_init (void)
  44 {
  45         int i;
  46         unsigned long addr;
  47         flash_info_t *fli = &flash_info[0];
  48
  49         fli->size = BANKSZ;
  50         fli->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
  51         fli->flash_id = FLASH_MAN_AMD + FLASH_AMLV640U;
  52
  53         addr = CONFIG_SYS_FLASH_BASE;
  54         for (i = 0; i < fli->sector_count; ++i) {
  55                 fli->start[i] = addr;
  56                 addr += SECTSZ;
  57
  58                 /* Protect monitor / environment area */
  59                 if (addr <= (CONFIG_SYS_FLASH_BASE + UBOOTAREA))
  60                         fli->protect[i] = 1;
  61                 else
  62                         fli->protect[i] = 0;
  63         }
  64
  65         return (BANKSZ);
  66 }