V3s_Allwinner
/
uboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 2 Wiki Activity

Add markbad function 

Add missing markbad function
If not, it's hang when it entered the mtd->mark_bad().

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Kyungmin Park 2008-11-13 15:14:33 +09:00 committed by Scott Wood
parent c438ea175d
commit 1714f51a20
1 changed files with 33 additions and 0 deletions
drivers/mtd/onenand
onenand_base.c

33
drivers/mtd/onenand/onenand_base.c
View File

@ -1583,6 +1583,37 @@ int onenand_block_isbad(struct mtd_info *mtd, loff_t ofs)
return ret;
}
/**
* onenand_default_block_markbad - [DEFAULT] mark a block bad
* @param mtd MTD device structure
* @param ofs offset from device start
*
* This is the default implementation, which can be overridden by
* a hardware specific driver.
*/
static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct onenand_chip *this = mtd->priv;
struct bbm_info *bbm = this->bbm;
u_char buf[2] = {0, 0};
struct mtd_oob_ops ops = {
.mode = MTD_OOB_PLACE,
.ooblen = 2,
.oobbuf = buf,
.ooboffs = 0,
};
int block;
/* Get block number */
block = ((int) ofs) >> bbm->bbt_erase_shift;
if (bbm->bbt)
bbm->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
/* We write two bytes, so we dont have to mess with 16 bit access */
ofs += mtd->oobsize + (bbm->badblockpos & ~0x01);
return onenand_write_oob_nolock(mtd, ofs, &ops);
}
/**
* onenand_block_markbad - [MTD Interface] Mark the block at the given offset as bad
* @param mtd MTD device structure
@ -2048,6 +2079,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
if (!this->write_bufferram)
this->write_bufferram = onenand_write_bufferram;
if (!this->block_markbad)
this->block_markbad = onenand_default_block_markbad;
if (!this->scan_bbt)
this->scan_bbt = onenand_default_bbt;