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Diffstat (limited to 'board/altera/dk1c20/flash.c')
-rwxr-xr-x | board/altera/dk1c20/flash.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/board/altera/dk1c20/flash.c b/board/altera/dk1c20/flash.c new file mode 100755 index 0000000..1f344dd --- /dev/null +++ b/board/altera/dk1c20/flash.c @@ -0,0 +1,62 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <common.h> +#include <nios.h> + +/* + * include common flash code (for altera boards) + */ +#include "../common/flash.c" + +/*----------------------------------------------------------------------*/ +#define BANKSZ CFG_FLASH_SIZE +#define SECTSZ (64 * 1024) +#define USERFLASH (2 * 1024 * 1024) /* bottom 2 MB for user */ + +/*----------------------------------------------------------------------*/ +unsigned long flash_init (void) +{ + int i; + unsigned long addr; + flash_info_t *fli = &flash_info[0]; + + fli->size = BANKSZ; + fli->sector_count = CFG_MAX_FLASH_SECT; + fli->flash_id = FLASH_MAN_AMD + FLASH_AMDLV065D; + + addr = CFG_FLASH_BASE; + for (i = 0; i < fli->sector_count; ++i) { + fli->start[i] = addr; + addr += SECTSZ; + + /* Protect all but 2 MByte user area */ + if (addr < (CFG_FLASH_BASE + USERFLASH)) + fli->protect[i] = 0; + else + fli->protect[i] = 1; + } + + return (BANKSZ); +} |