source: SVN/rincon/u-boot/board/altera/dk1s10/flash.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 1.7 KB
Line 
1/*
2 * (C) Copyright 2000-2004
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  (8 * 1024 * 1024)
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}
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