LXR uboot/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/*---------------------------------------------------------------------*/
  43unsigned 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}
  67