include/linux/mtd/nand.h | 38 +++
6 files changed, 635 insertions(+), 141 deletions(-)
-diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
-index 5897d8d..8242470 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -22,6 +22,10 @@ menuconfig MTD_NAND
config MTD_NAND_BCH
tristate
select BCH
-diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
-index 582bbd05..fcbe032 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
-@@ -53,4 +53,6 @@ obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH) += bcm47xxnflash/
+@@ -53,4 +53,6 @@ obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH) +=
obj-$(CONFIG_MTD_NAND_SUNXI) += sunxi_nand.o
obj-$(CONFIG_MTD_NAND_HISI504) += hisi504_nand.o
+obj-$(CONFIG_MTD_OF_NAND_PARTS) += ofnandpart.o
+
nand-objs := nand_base.o nand_bbt.o nand_timings.o
-diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
-index f580ed1..a30b67f 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
-@@ -1134,26 +1134,26 @@ static int nand_read_page_raw_syndrome(struct mtd_info *mtd,
+@@ -1134,26 +1134,26 @@ static int nand_read_page_raw_syndrome(s
struct nand_chip *chip, uint8_t *buf,
int oob_required, int page)
{
}
}
-@@ -1175,30 +1175,31 @@ static int nand_read_page_raw_syndrome(struct mtd_info *mtd,
+@@ -1175,30 +1175,31 @@ static int nand_read_page_raw_syndrome(s
static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
{
if (stat < 0) {
mtd->ecc_stats.failed++;
} else {
-@@ -1223,7 +1224,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1223,7 +1224,7 @@ static int nand_read_subpage(struct mtd_
int page)
{
int start_step, end_step, num_steps;
uint8_t *p;
int data_col_addr, i, gaps = 0;
int datafrag_len, eccfrag_len, aligned_len, aligned_pos;
-@@ -1232,16 +1233,16 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1232,16 +1233,16 @@ static int nand_read_subpage(struct mtd_
unsigned int max_bitflips = 0;
/* Column address within the page aligned to ECC size (256bytes) */
/* If we read not a page aligned data */
if (data_col_addr != 0)
chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1);
-@@ -1250,8 +1251,9 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1250,8 +1251,9 @@ static int nand_read_subpage(struct mtd_
chip->read_buf(mtd, p, datafrag_len);
/* Calculate ECC */
/*
* The performance is faster if we position offsets according to
-@@ -1275,7 +1277,8 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1275,7 +1277,8 @@ static int nand_read_subpage(struct mtd_
aligned_len = eccfrag_len;
if (eccpos[index] & (busw - 1))
aligned_len++;
aligned_len++;
chip->cmdfunc(mtd, NAND_CMD_RNDOUT,
-@@ -1287,11 +1290,13 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1287,11 +1290,13 @@ static int nand_read_subpage(struct mtd_
chip->buffers->ecccode[i] = chip->oob_poi[eccpos[i + index]];
p = bufpoi + data_col_addr;
if (stat < 0) {
mtd->ecc_stats.failed++;
} else {
-@@ -1315,32 +1320,33 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1315,32 +1320,33 @@ static int nand_read_subpage(struct mtd_
static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
{
if (stat < 0) {
mtd->ecc_stats.failed++;
} else {
-@@ -1368,12 +1374,12 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1368,12 +1374,12 @@ static int nand_read_page_hwecc(struct m
static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
struct nand_chip *chip, uint8_t *buf, int oob_required, int page)
{
uint8_t *ecc_calc = chip->buffers->ecccalc;
unsigned int max_bitflips = 0;
-@@ -1382,17 +1388,17 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
+@@ -1382,17 +1388,17 @@ static int nand_read_page_hwecc_oob_firs
chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
if (stat < 0) {
mtd->ecc_stats.failed++;
} else {
-@@ -1417,9 +1423,9 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
+@@ -1417,9 +1423,9 @@ static int nand_read_page_hwecc_oob_firs
static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
{
uint8_t *p = buf;
uint8_t *oob = chip->oob_poi;
unsigned int max_bitflips = 0;
-@@ -1427,17 +1433,17 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1427,17 +1433,17 @@ static int nand_read_page_syndrome(struc
for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
int stat;
if (stat < 0) {
mtd->ecc_stats.failed++;
-@@ -1448,9 +1454,9 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1448,9 +1454,9 @@ static int nand_read_page_syndrome(struc
oob += eccbytes;
}
}
-@@ -1480,7 +1486,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
+@@ -1480,7 +1486,7 @@ static uint8_t *nand_transfer_oob(struct
return oob + len;
case MTD_OPS_AUTO_OOB: {
uint32_t boffs = 0, roffs = ops->ooboffs;
size_t bytes = 0;
-@@ -1600,17 +1606,21 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
+@@ -1600,17 +1606,21 @@ read_retry:
* the read methods return max bitflips per ecc step.
*/
if (unlikely(ops->mode == MTD_OPS_RAW))
if (ret < 0) {
if (use_bufpoi)
/* Invalidate page cache */
-@@ -1746,6 +1756,39 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
+@@ -1746,6 +1756,39 @@ static int nand_read(struct mtd_info *mt
}
/**
* nand_read_oob_std - [REPLACEABLE] the most common OOB data read function
* @mtd: mtd info structure
* @chip: nand chip info structure
-@@ -1770,13 +1813,14 @@ static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1770,13 +1813,14 @@ static int nand_read_oob_syndrome(struct
int page)
{
int length = mtd->oobsize;
if (sndrnd) {
pos = eccsize + i * (eccsize + chunk);
if (mtd->writesize > 512)
-@@ -1829,9 +1873,10 @@ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -1829,9 +1873,10 @@ static int nand_write_oob_std(struct mtd
static int nand_write_oob_syndrome(struct mtd_info *mtd,
struct nand_chip *chip, int page)
{
const uint8_t *bufpoi = chip->oob_poi;
/*
-@@ -1839,7 +1884,7 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd,
+@@ -1839,7 +1884,7 @@ static int nand_write_oob_syndrome(struc
* or
* data-pad-ecc-pad-data-pad .... ecc-pad-oob
*/
pos = steps * (eccsize + chunk);
steps = 0;
} else
-@@ -1903,7 +1948,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
+@@ -1903,7 +1948,7 @@ static int nand_do_read_oob(struct mtd_i
stats = mtd->ecc_stats;
if (ops->mode == MTD_OPS_AUTO_OOB)
else
len = mtd->oobsize;
-@@ -1931,9 +1976,9 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
+@@ -1931,9 +1976,9 @@ static int nand_do_read_oob(struct mtd_i
while (1) {
if (ops->mode == MTD_OPS_RAW)
if (ret < 0)
break;
-@@ -2021,6 +2066,56 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
+@@ -2021,6 +2066,56 @@ out:
return ret;
}
/**
* nand_write_page_raw - [INTERN] raw page write function
-@@ -2054,26 +2149,26 @@ static int nand_write_page_raw_syndrome(struct mtd_info *mtd,
+@@ -2054,26 +2149,26 @@ static int nand_write_page_raw_syndrome(
struct nand_chip *chip,
const uint8_t *buf, int oob_required)
{
}
}
-@@ -2093,21 +2188,21 @@ static int nand_write_page_raw_syndrome(struct mtd_info *mtd,
+@@ -2093,21 +2188,21 @@ static int nand_write_page_raw_syndrome(
static int nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required)
{
}
/**
-@@ -2120,20 +2215,20 @@ static int nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -2120,20 +2215,20 @@ static int nand_write_page_swecc(struct
static int nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required)
{
chip->oob_poi[eccpos[i]] = ecc_calc[i];
chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
-@@ -2158,10 +2253,10 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd,
+@@ -2158,10 +2253,10 @@ static int nand_write_subpage_hwecc(stru
{
uint8_t *oob_buf = chip->oob_poi;
uint8_t *ecc_calc = chip->buffers->ecccalc;
uint32_t start_step = offset / ecc_size;
uint32_t end_step = (offset + data_len - 1) / ecc_size;
int oob_bytes = mtd->oobsize / ecc_steps;
-@@ -2169,7 +2264,7 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd,
+@@ -2169,7 +2264,7 @@ static int nand_write_subpage_hwecc(stru
for (step = 0; step < ecc_steps; step++) {
/* configure controller for WRITE access */
/* write data (untouched subpages already masked by 0xFF) */
chip->write_buf(mtd, buf, ecc_size);
-@@ -2178,7 +2273,7 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd,
+@@ -2178,7 +2273,7 @@ static int nand_write_subpage_hwecc(stru
if ((step < start_step) || (step > end_step))
memset(ecc_calc, 0xff, ecc_bytes);
else
/* mask OOB of un-touched subpages by padding 0xFF */
/* if oob_required, preserve OOB metadata of written subpage */
-@@ -2193,7 +2288,7 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd,
+@@ -2193,7 +2288,7 @@ static int nand_write_subpage_hwecc(stru
/* copy calculated ECC for whole page to chip->buffer->oob */
/* this include masked-value(0xFF) for unwritten subpages */
ecc_calc = chip->buffers->ecccalc;
chip->oob_poi[eccpos[i]] = ecc_calc[i];
/* write OOB buffer to NAND device */
-@@ -2217,29 +2312,29 @@ static int nand_write_page_syndrome(struct mtd_info *mtd,
+@@ -2217,29 +2312,29 @@ static int nand_write_page_syndrome(stru
struct nand_chip *chip,
const uint8_t *buf, int oob_required)
{
}
}
-@@ -2270,7 +2365,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -2270,7 +2365,7 @@ static int nand_write_page(struct mtd_in
int status, subpage;
if (!(chip->options & NAND_NO_SUBPAGE_WRITE) &&
subpage = offset || (data_len < mtd->writesize);
else
subpage = 0;
-@@ -2278,13 +2373,15 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
+@@ -2278,13 +2373,15 @@ static int nand_write_page(struct mtd_in
chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
if (unlikely(raw))
if (status < 0)
return status;
-@@ -2343,7 +2440,7 @@ static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len,
+@@ -2343,7 +2440,7 @@ static uint8_t *nand_fill_oob(struct mtd
return oob + len;
case MTD_OPS_AUTO_OOB: {
uint32_t boffs = 0, woffs = ops->ooboffs;
size_t bytes = 0;
-@@ -2539,6 +2636,46 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
+@@ -2539,6 +2636,46 @@ static int panic_nand_write(struct mtd_i
}
/**
* nand_write - [MTD Interface] NAND write with ECC
* @mtd: MTD device structure
* @to: offset to write to
-@@ -2566,6 +2703,39 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
+@@ -2566,6 +2703,39 @@ static int nand_write(struct mtd_info *m
}
/**
* nand_do_write_oob - [MTD Interface] NAND write out-of-band
* @mtd: MTD device structure
* @to: offset to write to
-@@ -2583,7 +2753,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
+@@ -2583,7 +2753,7 @@ static int nand_do_write_oob(struct mtd_
__func__, (unsigned int)to, (int)ops->ooblen);
if (ops->mode == MTD_OPS_AUTO_OOB)
else
len = mtd->oobsize;
-@@ -2637,9 +2807,11 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
+@@ -2637,9 +2807,11 @@ static int nand_do_write_oob(struct mtd_
nand_fill_oob(mtd, ops->oobbuf, ops->ooblen, ops);
if (ops->mode == MTD_OPS_RAW)
chip->select_chip(mtd, -1);
-@@ -2694,6 +2866,54 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
+@@ -2694,6 +2866,54 @@ out:
}
/**
* single_erase - [GENERIC] NAND standard block erase command function
* @mtd: MTD device structure
* @page: the page address of the block which will be erased
-@@ -2723,6 +2943,29 @@ static int nand_erase(struct mtd_info *mtd, struct erase_info *instr)
+@@ -2723,6 +2943,29 @@ static int nand_erase(struct mtd_info *m
}
/**
* nand_erase_nand - [INTERN] erase block(s)
* @mtd: MTD device structure
* @instr: erase instruction
-@@ -2864,6 +3107,18 @@ static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
+@@ -2864,6 +3107,18 @@ static int nand_block_isbad(struct mtd_i
}
/**
* nand_block_markbad - [MTD Interface] Mark block at the given offset as bad
* @mtd: MTD device structure
* @ofs: offset relative to mtd start
-@@ -2884,6 +3139,33 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
+@@ -2884,6 +3139,33 @@ static int nand_block_markbad(struct mtd
}
/**
* nand_onfi_set_features- [REPLACEABLE] set features for ONFI nand
* @mtd: MTD device structure
* @chip: nand chip info structure
-@@ -4099,6 +4381,169 @@ static int nand_ecc_ctrl_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc)
+@@ -4099,6 +4381,169 @@ static int nand_ecc_ctrl_init(struct mtd
}
/**
/* Allow subpage writes up to ecc.steps. Not possible for MLC flash */
if (!(chip->options & NAND_NO_SUBPAGE_WRITE) && nand_is_slc(chip)) {
switch (ecc->steps) {
-diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c
-index 3803e0b..b82b976 100644
--- a/drivers/mtd/nand/nand_bch.c
+++ b/drivers/mtd/nand/nand_bch.c
-@@ -53,14 +53,14 @@ int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
+@@ -53,14 +53,14 @@ int nand_bch_calculate_ecc(struct mtd_in
unsigned char *code)
{
const struct nand_chip *chip = mtd->priv;
code[i] ^= nbc->eccmask[i];
return 0;
-@@ -80,15 +80,15 @@ int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
+@@ -80,15 +80,15 @@ int nand_bch_correct_data(struct mtd_inf
unsigned char *read_ecc, unsigned char *calc_ecc)
{
const struct nand_chip *chip = mtd->priv;
/* error is located in data, correct it */
buf[errloc[i] >> 3] ^= (1 << (errloc[i] & 7));
/* else error in ecc, no action needed */
-diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c
-index 97c4c02..f35c418 100644
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
-@@ -424,7 +424,7 @@ int nand_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
+@@ -424,7 +424,7 @@ int nand_calculate_ecc(struct mtd_info *
unsigned char *code)
{
__nand_calculate_ecc(buf,
return 0;
}
-@@ -524,7 +524,7 @@ int nand_correct_data(struct mtd_info *mtd, unsigned char *buf,
+@@ -524,7 +524,7 @@ int nand_correct_data(struct mtd_info *m
unsigned char *read_ecc, unsigned char *calc_ecc)
{
return __nand_correct_data(buf, read_ecc, calc_ecc,
}
EXPORT_SYMBOL(nand_correct_data);
-diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
-index 3d4ea7e..510e09b 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -708,6 +708,7 @@ struct nand_chip {
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