static int attach_bbt(struct mtd_info *mtd, void *bbt)
{
struct nand_chip *chip = mtd->priv;
chip->bbt_td->options |= NAND_BBT_WRITE | NAND_BBT_CREATE;
chip->bbt_md->options |= NAND_BBT_WRITE | NAND_BBT_CREATE;
free(chip->bbt);
chip->bbt = bbt;
return nand_update_bbt(mtd, 0);
}
static int jz_sfcnand_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct nand_chip *chip = mtd->priv;
uint8_t buf[2] = { 0, 0 };
int block, res, ret = 0, i = 0;
int write_oob = !(chip->bbt_options & NAND_BBT_NO_OOB_BBM);
/* Write bad block marker to OOB */
if (write_oob) {
struct mtd_oob_ops ops;
loff_t wr_ofs = ofs;
ops.datbuf = NULL;
ops.oobbuf = buf;
ops.ooboffs = chip->badblockpos;
if (chip->options & NAND_BUSWIDTH_16) {
ops.ooboffs &= ~0x01;
ops.len = ops.ooblen = 2;
} else {
ops.len = ops.ooblen = 1;
}
ops.mode = MTD_OPS_PLACE_OOB;
/* Write to first/last page(s) if necessary */
if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
wr_ofs += mtd->erasesize - mtd->writesize;
do {
res = sfcnand_write_oob(mtd, wr_ofs, &ops);
if (!ret)
ret = res;
i++;
wr_ofs += mtd->writesize;
} while ((chip->bbt_options & NAND_BBT_SCAN2NDPAGE) && i < 2);
}
/* Update flash-based bad block table */
if (chip->bbt_options & NAND_BBT_USE_FLASH) {
res = nand_update_bbt(mtd, ofs);
if (!ret)
ret = res;
}
if (!ret)
mtd->ecc_stats.badblocks++;
return ret;
}
