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path: root/drivers/mtd/nand/nand_bbt.c
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Diffstat (limited to 'drivers/mtd/nand/nand_bbt.c')
-rw-r--r--drivers/mtd/nand/nand_bbt.c27
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index af46428286fe..ccbeaa1e4a8e 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -1276,20 +1276,6 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
1276 * while scanning a device for factory marked good / bad blocks. */ 1276 * while scanning a device for factory marked good / bad blocks. */
1277static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; 1277static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
1278 1278
1279static struct nand_bbt_descr smallpage_flashbased = {
1280 .options = NAND_BBT_SCAN2NDPAGE,
1281 .offs = NAND_SMALL_BADBLOCK_POS,
1282 .len = 1,
1283 .pattern = scan_ff_pattern
1284};
1285
1286static struct nand_bbt_descr largepage_flashbased = {
1287 .options = NAND_BBT_SCAN2NDPAGE,
1288 .offs = NAND_LARGE_BADBLOCK_POS,
1289 .len = 2,
1290 .pattern = scan_ff_pattern
1291};
1292
1293static uint8_t scan_agand_pattern[] = { 0x1C, 0x71, 0xC7, 0x1C, 0x71, 0xC7 }; 1279static uint8_t scan_agand_pattern[] = { 0x1C, 0x71, 0xC7, 0x1C, 0x71, 0xC7 };
1294 1280
1295static struct nand_bbt_descr agand_flashbased = { 1281static struct nand_bbt_descr agand_flashbased = {
@@ -1355,10 +1341,6 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = {
1355 * this->badblock_pattern. Thus, this->badblock_pattern should be NULL when 1341 * this->badblock_pattern. Thus, this->badblock_pattern should be NULL when
1356 * passed to this function. 1342 * passed to this function.
1357 * 1343 *
1358 * TODO: Handle other flags, replace other static structs
1359 * (e.g. handle NAND_BBT_FLASH for flash-based BBT,
1360 * replace smallpage_flashbased)
1361 *
1362 */ 1344 */
1363static int nand_create_default_bbt_descr(struct nand_chip *this) 1345static int nand_create_default_bbt_descr(struct nand_chip *this)
1364{ 1346{
@@ -1422,15 +1404,14 @@ int nand_default_bbt(struct mtd_info *mtd)
1422 this->bbt_md = &bbt_mirror_descr; 1404 this->bbt_md = &bbt_mirror_descr;
1423 } 1405 }
1424 } 1406 }
1425 if (!this->badblock_pattern) {
1426 this->badblock_pattern = (mtd->writesize > 512) ? &largepage_flashbased : &smallpage_flashbased;
1427 }
1428 } else { 1407 } else {
1429 this->bbt_td = NULL; 1408 this->bbt_td = NULL;
1430 this->bbt_md = NULL; 1409 this->bbt_md = NULL;
1431 if (!this->badblock_pattern)
1432 nand_create_default_bbt_descr(this);
1433 } 1410 }
1411
1412 if (!this->badblock_pattern)
1413 nand_create_default_bbt_descr(this);
1414
1434 return nand_scan_bbt(mtd, this->badblock_pattern); 1415 return nand_scan_bbt(mtd, this->badblock_pattern);
1435} 1416}
1436 1417