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nand: export symbols needed for stmp3xxx nand

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nand: increase max nand page and oob sizes

Signed-off-by: Rob Herring <r.herring@freescale.com>
This commit is contained in:
Rob Herring
2009-09-16 11:43:45 -05:00
committed by Matt Sealey
parent 7413e00614
commit e86dae7d10
2 changed files with 13 additions and 6 deletions
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10
drivers/mtd/nand/nand_base.c
View File

@@ -1090,7 +1090,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
*
* Internal function. Called with chip held.
*/
static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
struct mtd_oob_ops *ops)
{
int chipnr, page, realpage, col, bytes, aligned;
@@ -1218,6 +1218,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
}
EXPORT_SYMBOL(nand_do_read_ops);
/**
* nand_read - [MTD Interface] MTD compability function for nand_do_read_ecc
@@ -1800,7 +1801,7 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob,
*
* NAND write with ECC
*/
static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops)
{
int chipnr, realpage, page, blockmask, column;
@@ -1892,6 +1893,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
ops->oobretlen = ops->ooblen;
return ret;
}
EXPORT_SYMBOL(nand_do_write_ops);
/**
* nand_write - [MTD Interface] NAND write with ECC
@@ -2281,6 +2283,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
/* Return more or less happy */
return ret;
}
EXPORT_SYMBOL_GPL(nand_erase_nand);
/**
* nand_sync - [MTD Interface] sync
@@ -2478,7 +2481,8 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
mtd->writesize = 1024 << (extid & 0x3);
extid >>= 2;
/* Calc oobsize */
mtd->oobsize = (8 << (extid & 0x01)) * (mtd->writesize >> 9);
mtd->oobsize = (*maf_id == 0x2c && dev_id == 0xd5) ?
218 : (8 << (extid & 0x01)) * (mtd->writesize >> 9);
extid >>= 2;
/* Calc blocksize. Blocksize is multiples of 64KiB */
mtd->erasesize = (64 * 1024) << (extid & 0x03);

9
include/linux/mtd/nand.h
View File

@@ -43,8 +43,8 @@ extern void nand_wait_ready(struct mtd_info *mtd);
* is supported now. If you add a chip with bigger oobsize/page
* adjust this accordingly.
*/
#define NAND_MAX_OOBSIZE 128
#define NAND_MAX_PAGESIZE 4096
#define NAND_MAX_OOBSIZE (218 * NAND_MAX_CHIPS)
#define NAND_MAX_PAGESIZE (4096 * NAND_MAX_CHIPS)
/*
* Constants for hardware specific CLE/ALE/NCE function
@@ -546,7 +546,10 @@ extern int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
int allowbbt);
extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t * retlen, uint8_t * buf);
extern int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
struct mtd_oob_ops *ops);
extern int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops);
/*
* Constants for oob configuration
*/