blob: 1f344dd337a49ac7600ada23a80ba70e9d92d31f [file] [log] [blame]
wdenkc935d3b2004-01-03 19:43:48 +00001/*
2 * (C) Copyright 2000
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24
25#include <common.h>
26#include <nios.h>
27
28/*
29 * include common flash code (for altera boards)
30 */
31#include "../common/flash.c"
32
33/*----------------------------------------------------------------------*/
34#define BANKSZ CFG_FLASH_SIZE
35#define SECTSZ (64 * 1024)
36#define USERFLASH (2 * 1024 * 1024) /* bottom 2 MB for user */
37
38/*----------------------------------------------------------------------*/
39unsigned long flash_init (void)
40{
41 int i;
42 unsigned long addr;
43 flash_info_t *fli = &flash_info[0];
44
45 fli->size = BANKSZ;
46 fli->sector_count = CFG_MAX_FLASH_SECT;
47 fli->flash_id = FLASH_MAN_AMD + FLASH_AMDLV065D;
48
49 addr = CFG_FLASH_BASE;
50 for (i = 0; i < fli->sector_count; ++i) {
51 fli->start[i] = addr;
52 addr += SECTSZ;
53
54 /* Protect all but 2 MByte user area */
55 if (addr < (CFG_FLASH_BASE + USERFLASH))
56 fli->protect[i] = 0;
57 else
58 fli->protect[i] = 1;
59 }
60
61 return (BANKSZ);
62}