| wdenk | c935d3b | 2004-01-03 19:43:48 +0000 | [diff] [blame^] | 1 | /* |
| 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 | /*----------------------------------------------------------------------*/ |
| 39 | unsigned 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 | } |