/**
* nand_select_chip - [DEFAULT] control CE line
* @mtd: MTD device structure
- * @chip: chipnumber to select, -1 for deselect
+ * @chipnr: chipnumber to select, -1 for deselect
*
* Default select function for 1 chip devices.
*/
* Send command to NAND device. This is the version for the new large page
* devices We dont have the separate regions as we have in the small page
* devices. We must emulate NAND_CMD_READOOB to keep the code compatible.
- *
*/
static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
int column, int page_addr)
/**
* nand_get_device - [GENERIC] Get chip for selected access
- * @this: the nand chip descriptor
+ * @chip: the nand chip descriptor
* @mtd: MTD device structure
* @new_state: the state which is requested
*
/**
* nand_wait - [DEFAULT] wait until the command is done
* @mtd: MTD device structure
- * @this: NAND chip structure
+ * @chip: NAND chip structure
*
* Wait for command done. This applies to erase and program only
* Erase can take up to 400ms and program up to 20ms according to
* general NAND and SmartMedia specs
- *
-*/
+ */
static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip)
{
/**
* nand_transfer_oob - [Internal] Transfer oob to client buffer
* @chip: nand chip structure
+ * @oob: oob destination address
* @ops: oob ops structure
*/
static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
*
* @mtd: MTD device structure
* @from: offset to read from
+ * @ops: oob ops structure
*
* Internal function. Called with chip held.
*/
ret = nand_do_read_ops(mtd, from, &chip->ops);
+ *retlen = chip->ops.retlen;
+
nand_release_device(mtd);
- *retlen = chip->ops.retlen;
return ret;
}
status = chip->waitfunc(mtd, chip);
- return status;
+ return status & NAND_STATUS_FAIL ? -EIO : 0;
}
/**
pos = steps * (eccsize + chunk);
steps = 0;
} else
- pos = eccsize + chunk;
+ pos = eccsize;
chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page);
for (i = 0; i < steps; i++) {
sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd);
buf = nand_transfer_oob(chip, buf, ops);
- readlen -= ops->ooblen;
- if (!readlen)
- break;
-
if (!(chip->options & NAND_NO_READRDY)) {
/*
* Apply delay or wait for ready/busy pin. Do this
nand_wait_ready(mtd);
}
+ readlen -= ops->ooblen;
+ if (!readlen)
+ break;
+
/* Increment page address */
realpage++;
bytes = min_t(size_t, len, free->length);
boffs = free->offset;
}
- memcpy(chip->oob_poi + woffs, oob, bytes);
+ memcpy(chip->oob_poi + boffs, oob, bytes);
oob += bytes;
}
return oob;
if (!writelen)
return 0;
+ chipnr = (int)(to >> chip->chip_shift);
+ chip->select_chip(mtd, chipnr);
+
/* Check, if it is write protected */
if (nand_check_wp(mtd))
return -EIO;
- chipnr = (int)(to >> chip->chip_shift);
- chip->select_chip(mtd, chipnr);
-
realpage = (int)(to >> chip->page_shift);
page = realpage & chip->pagemask;
blockmask = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
ret = nand_do_write_ops(mtd, to, &chip->ops);
+ *retlen = chip->ops.retlen;
+
nand_release_device(mtd);
- *retlen = chip->ops.retlen;
return ret;
}
/**
* nand_write_oob - [MTD Interface] NAND write data and/or out-of-band
* @mtd: MTD device structure
- * @from: offset to read from
+ * @to: offset to write to
* @ops: oob operation description structure
*/
static int nand_write_oob(struct mtd_info *mtd, loff_t to,
/**
* nand_block_isbad - [MTD Interface] Check if block at offset is bad
* @mtd: MTD device structure
- * @ofs: offset relative to mtd start
+ * @offs: offset relative to mtd start
*/
static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
{
}
/* Try to identify manufacturer */
- for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_id++) {
+ for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_idx++) {
if (nand_manuf_ids[maf_idx].id == *maf_id)
break;
}