Flex-OneNAND driver support
This patch adds support for Flex-OneNAND devices.
Signed-off-by: Rohit Hagargundgi <h.rohit@samsung.com>
Signed-off-by: Amul Kumar Saha <amul.saha@samsung.com>
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index d538f95..1354877 100644
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -69,6 +69,7 @@
loff_t from;
size_t readlen, ooblen;
struct mtd_oob_ops ops;
+ int rgn;
printk(KERN_INFO "Scanning device for bad blocks\n");
@@ -82,7 +83,7 @@
/* Note that numblocks is 2 * (real numblocks) here;
* see i += 2 below as it makses shifting and masking less painful
*/
- numblocks = mtd->size >> (bbm->bbt_erase_shift - 1);
+ numblocks = this->chipsize >> (bbm->bbt_erase_shift - 1);
startblock = 0;
from = 0;
@@ -115,7 +116,12 @@
}
}
i += 2;
- from += (1 << bbm->bbt_erase_shift);
+
+ if (FLEXONENAND(this)) {
+ rgn = flexonenand_region(mtd, from);
+ from += mtd->eraseregions[rgn].erasesize;
+ } else
+ from += (1 << bbm->bbt_erase_shift);
}
return 0;
@@ -152,7 +158,7 @@
uint8_t res;
/* Get block number * 2 */
- block = (int)(offs >> (bbm->bbt_erase_shift - 1));
+ block = (int) (onenand_block(this, offs) << 1);
res = (bbm->bbt[block >> 3] >> (block & 0x06)) & 0x03;
MTDDEBUG (MTD_DEBUG_LEVEL2,
@@ -191,7 +197,7 @@
struct bbm_info *bbm = this->bbm;
int len, ret = 0;
- len = mtd->size >> (this->erase_shift + 2);
+ len = this->chipsize >> (this->erase_shift + 2);
/* Allocate memory (2bit per block) */
bbm->bbt = malloc(len);
if (!bbm->bbt) {