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[MTD] OneNAND: fix onenand_wait bug

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Fix onenand_wait error reporting

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Kyungmin Park 2006-12-22 16:02:50 +09:00 committed by Artem Bityutskiy
parent 85de3d9bc7
commit f627248736
2 changed files with 17 additions and 24 deletions
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38
drivers/mtd/onenand/onenand_base.c
View file

@ -318,15 +318,10 @@ static int onenand_wait(struct mtd_info *mtd, int state)
ctrl = this->read_word(this->base + ONENAND_REG_CTRL_STATUS);
if (ctrl & ONENAND_CTRL_ERROR) {
/* It maybe occur at initial bad block */
DEBUG(MTD_DEBUG_LEVEL0, "onenand_wait: controller error = 0x%04x\n", ctrl);
/* Clear other interrupt bits for preventing ECC error */
interrupt &= ONENAND_INT_MASTER;
}
if (ctrl & ONENAND_CTRL_LOCK) {
DEBUG(MTD_DEBUG_LEVEL0, "onenand_wait: it's locked error = 0x%04x\n", ctrl);
return -EACCES;
if (ctrl & ONENAND_CTRL_LOCK)
DEBUG(MTD_DEBUG_LEVEL0, "onenand_wait: it's locked error.\n");
return ctrl;
}
if (interrupt & ONENAND_INT_READ) {
@ -750,21 +745,21 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
ret = this->wait(mtd, FL_READING);
/* First copy data and check return value for ECC handling */
onenand_update_bufferram(mtd, from, 1);
onenand_update_bufferram(mtd, from, !ret);
}
this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen);
read += thislen;
if (read == len)
break;
if (ret) {
DEBUG(MTD_DEBUG_LEVEL0, "onenand_read: read failed = %d\n", ret);
goto out;
}
read += thislen;
if (read == len)
break;
from += thislen;
buf += thislen;
}
@ -832,16 +827,16 @@ int onenand_do_read_oob(struct mtd_info *mtd, loff_t from, size_t len,
this->read_bufferram(mtd, ONENAND_SPARERAM, buf, column, thislen);
if (ret) {
DEBUG(MTD_DEBUG_LEVEL0, "onenand_read_oob: read failed = 0x%x\n", ret);
goto out;
}
read += thislen;
if (read == len)
break;
if (ret) {
DEBUG(MTD_DEBUG_LEVEL0, "onenand_read_oob: read failed = %d\n", ret);
goto out;
}
buf += thislen;
/* Read more? */
@ -1199,10 +1194,7 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
ret = this->wait(mtd, FL_ERASING);
/* Check, if it is write protected */
if (ret) {
if (ret == -EPERM)
DEBUG(MTD_DEBUG_LEVEL0, "onenand_erase: Device is write protected!!!\n");
else
DEBUG(MTD_DEBUG_LEVEL0, "onenand_erase: Failed erase, block %d\n", (unsigned) (addr >> this->erase_shift));
DEBUG(MTD_DEBUG_LEVEL0, "onenand_erase: Failed erase, block %d\n", (unsigned) (addr >> this->erase_shift));
instr->state = MTD_ERASE_FAILED;
instr->fail_addr = addr;
goto erase_exit;

3
drivers/mtd/onenand/onenand_bbt.c
View file

@ -93,7 +93,8 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
ret = onenand_do_read_oob(mtd, from + j * mtd->writesize + bd->offs,
readlen, &retlen, &buf[0]);
if (ret)
/* If it is a initial bad block, just ignore it */
if (ret && !(ret & ONENAND_CTRL_LOAD))
return ret;
if (check_short_pattern(&buf[j * scanlen], scanlen, mtd->writesize, bd)) {