+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2008 Semihalf
*
* Written by: Piotr Ziecik <kosmo@semihalf.com>
- *
- * 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 <flash.h>
#include <malloc.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/concat.h>
-
-/* use CONFIG_SYS_MAX_FLASH_BANKS_DETECT if defined */
-#ifdef CONFIG_SYS_MAX_FLASH_BANKS_DETECT
-# define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS_DETECT
-#else
-# define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS
-#endif
-
-extern flash_info_t flash_info[];
+#include <mtd/cfi_flash.h>
static struct mtd_info cfi_mtd_info[CFI_MAX_FLASH_BANKS];
static char cfi_mtd_names[CFI_MAX_FLASH_BANKS][16];
int sect;
int regions = 0;
int numblocks = 0;
- ulong offset = 0;
- ulong base_addr = fi->start[0];
+ ulong offset;
+ ulong base_addr;
/*
* First detect the number of eraseregions so that we can allocate
sect_size_old = flash_sector_size(fi, sect);
}
+ switch (regions) {
+ case 0:
+ return 1;
+ case 1: /* flash has uniform erase size */
+ mtd->numeraseregions = 0;
+ mtd->erasesize = sect_size_old;
+ return 0;
+ }
+
+ mtd->numeraseregions = regions;
mtd->eraseregions = malloc(sizeof(struct mtd_erase_region_info) * regions);
/*
* Now detect the largest sector and fill the eraseregions
*/
- sect_size_old = 0;
regions = 0;
+ base_addr = offset = fi->start[0];
+ sect_size_old = flash_sector_size(fi, 0);
for (sect = 0; sect < fi->sector_count; sect++) {
- if ((sect_size_old != flash_sector_size(fi, sect)) &&
- (sect_size_old != 0)) {
+ if (sect_size_old != flash_sector_size(fi, sect)) {
mtd->eraseregions[regions].offset = offset - base_addr;
mtd->eraseregions[regions].erasesize = sect_size_old;
mtd->eraseregions[regions].numblocks = numblocks;
-
/* Now start counting the next eraseregions */
numblocks = 0;
regions++;
- } else {
- numblocks++;
- }
-
- if (sect_size_old != flash_sector_size(fi, sect))
offset = fi->start[sect];
+ }
+ numblocks++;
/*
* Select the largest sector size as erasesize (e.g. for UBI)
*/
mtd->eraseregions[regions].offset = offset - base_addr;
mtd->eraseregions[regions].erasesize = sect_size_old;
- mtd->eraseregions[regions].numblocks = numblocks + 1;
-
- if (regions)
- mtd->numeraseregions = regions + 1;
- else
- mtd->numeraseregions = 0;
+ mtd->eraseregions[regions].numblocks = numblocks;
mtd->erasesize = sect_size;
struct mtd_info *mtd;
flash_info_t *fi;
int error, i;
+#ifdef CONFIG_MTD_CONCAT
int devices_found = 0;
struct mtd_info *mtd_list[CONFIG_SYS_MAX_FLASH_BANKS];
+#endif
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
fi = &flash_info[i];
mtd->flags = MTD_CAP_NORFLASH;
mtd->size = fi->size;
mtd->writesize = 1;
-
- mtd->erase = cfi_mtd_erase;
- mtd->read = cfi_mtd_read;
- mtd->write = cfi_mtd_write;
- mtd->sync = cfi_mtd_sync;
- mtd->lock = cfi_mtd_lock;
- mtd->unlock = cfi_mtd_unlock;
+ mtd->writebufsize = mtd->writesize;
+
+ mtd->_erase = cfi_mtd_erase;
+ mtd->_read = cfi_mtd_read;
+ mtd->_write = cfi_mtd_write;
+ mtd->_sync = cfi_mtd_sync;
+ mtd->_lock = cfi_mtd_lock;
+ mtd->_unlock = cfi_mtd_unlock;
mtd->priv = fi;
if (add_mtd_device(mtd))
return -ENOMEM;
+#ifdef CONFIG_MTD_CONCAT
mtd_list[devices_found++] = mtd;
+#endif
}
#ifdef CONFIG_MTD_CONCAT