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mtd: resync with Linux-3.7.1

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This patch is essentially an update of u-boot MTD subsystem to
the state of Linux-3.7.1 with exclusion of some bits:

- the update is concentrated on NAND, no onenand or CFI/NOR/SPI
flashes interfaces are updated EXCEPT for API changes.

- new large NAND chips support is there, though some updates
have got in Linux-3.8.-rc1, (which will follow on top of this patch).

To produce this update I used tag v3.7.1 of linux-stable repository.

The update was made using application of relevant patches,
with changes relevant to U-Boot-only stuff sticked together
to keep bisectability. Then all changes were grouped together
to this patch.

Signed-off-by: Sergey Lapin <slapin@ossfans.org>
[scottwood@freescale.com: some eccstrength and build fixes]
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Sergey Lapin 2013-01-14 03:46:50 +00:00 committed by Scott Wood
parent a1b81ab26f
commit dfe64e2c89
48 changed files with 2204 additions and 1702 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
board/ait/cam_enc_4xx/cam_enc_4xx.c
View File

@ -120,7 +120,7 @@ int board_eth_init(bd_t *bis)
#ifdef CONFIG_NAND_DAVINCI
static int
davinci_std_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int page)
uint8_t *buf, int oob_required, int page)
{
struct nand_chip *this = mtd->priv;
int i, eccsize = chip->ecc.size;
@ -167,8 +167,9 @@ davinci_std_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
return 0;
}
static void davinci_std_write_page_syndrome(struct mtd_info *mtd,
struct nand_chip *chip, const uint8_t *buf)
static int davinci_std_write_page_syndrome(struct mtd_info *mtd,
struct nand_chip *chip, const uint8_t *buf,
int oob_required)
{
unsigned char davinci_ecc_buf[NAND_MAX_OOBSIZE];
struct nand_chip *this = mtd->priv;
@ -218,6 +219,7 @@ static void davinci_std_write_page_syndrome(struct mtd_info *mtd,
i = mtd->oobsize - (oob - chip->oob_poi);
if (i)
chip->write_buf(mtd, oob, i);
return 0;
}
static int davinci_std_write_oob_syndrome(struct mtd_info *mtd,
@ -239,7 +241,7 @@ static int davinci_std_write_oob_syndrome(struct mtd_info *mtd,
}
static int davinci_std_read_oob_syndrome(struct mtd_info *mtd,
struct nand_chip *chip, int page, int sndcmd)
struct nand_chip *chip, int page)
{
struct nand_chip *this = mtd->priv;
uint8_t *buf = chip->oob_poi;
@ -249,7 +251,7 @@ static int davinci_std_read_oob_syndrome(struct mtd_info *mtd,
chip->read_buf(mtd, bufpoi, mtd->oobsize);
return 1;
return 0;
}
static void nand_dm365evm_select_chip(struct mtd_info *mtd, int chip)

18
common/cmd_nand.c
View File

@ -62,8 +62,8 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat)
ops.oobbuf = oobbuf;
ops.len = nand->writesize;
ops.ooblen = nand->oobsize;
ops.mode = MTD_OOB_RAW;
i = nand->read_oob(nand, addr, &ops);
ops.mode = MTD_OPS_RAW;
i = mtd_read_oob(nand, addr, &ops);
if (i < 0) {
printf("Error (%d) reading page %08lx\n", i, off);
free(datbuf);
@ -404,13 +404,13 @@ static int raw_access(nand_info_t *nand, ulong addr, loff_t off, ulong count,
.oobbuf = ((u8 *)addr) + nand->writesize,
.len = nand->writesize,
.ooblen = nand->oobsize,
.mode = MTD_OOB_RAW
.mode = MTD_OPS_RAW
};
if (read)
ret = nand->read_oob(nand, off, &ops);
ret = mtd_read_oob(nand, off, &ops);
else
ret = nand->write_oob(nand, off, &ops);
ret = mtd_write_oob(nand, off, &ops);
if (ret) {
printf("%s: error at offset %llx, ret %d\n",
@ -715,13 +715,13 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
mtd_oob_ops_t ops = {
.oobbuf = (u8 *)addr,
.ooblen = rwsize,
.mode = MTD_OOB_RAW
.mode = MTD_OPS_RAW
};
if (read)
ret = nand->read_oob(nand, off, &ops);
ret = mtd_read_oob(nand, off, &ops);
else
ret = nand->write_oob(nand, off, &ops);
ret = mtd_write_oob(nand, off, &ops);
} else if (raw) {
ret = raw_access(nand, addr, off, pagecount, read);
} else {
@ -764,7 +764,7 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
while (argc > 0) {
addr = simple_strtoul(*argv, NULL, 16);
if (nand->block_markbad(nand, addr)) {
if (mtd_block_markbad(nand, addr)) {
printf("block 0x%08lx NOT marked "
"as bad! ERROR %d\n",
addr, ret);

30
common/cmd_onenand.c
View File

@ -83,7 +83,7 @@ static int onenand_block_read(loff_t from, size_t len,
ops.len = blocksize;
while (blocks) {
ret = mtd->block_isbad(mtd, ofs);
ret = mtd_block_isbad(mtd, ofs);
if (ret) {
printk("Bad blocks %d at 0x%x\n",
(u32)(ofs >> this->erase_shift), (u32)ofs);
@ -97,7 +97,7 @@ static int onenand_block_read(loff_t from, size_t len,
ops.datbuf = buf;
ops.retlen = 0;
ret = mtd->read_oob(mtd, ofs, &ops);
ret = mtd_read_oob(mtd, ofs, &ops);
if (ret) {
printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
ofs += blocksize;
@ -118,7 +118,7 @@ static int onenand_write_oneblock_withoob(loff_t to, const u_char * buf,
struct mtd_oob_ops ops = {
.len = mtd->writesize,
.ooblen = mtd->oobsize,
.mode = MTD_OOB_AUTO,
.mode = MTD_OPS_AUTO_OOB,
};
int page, ret = 0;
for (page = 0; page < (mtd->erasesize / mtd->writesize); page ++) {
@ -126,7 +126,7 @@ static int onenand_write_oneblock_withoob(loff_t to, const u_char * buf,
buf += mtd->writesize;
ops.oobbuf = (u_char *)buf;
buf += mtd->oobsize;
ret = mtd->write_oob(mtd, to, &ops);
ret = mtd_write_oob(mtd, to, &ops);
if (ret)
break;
to += mtd->writesize;
@ -156,7 +156,7 @@ static int onenand_block_write(loff_t to, size_t len,
ofs = to;
while (blocks) {
ret = mtd->block_isbad(mtd, ofs);
ret = mtd_block_isbad(mtd, ofs);
if (ret) {
printk("Bad blocks %d at 0x%x\n",
(u32)(ofs >> this->erase_shift), (u32)ofs);
@ -165,7 +165,7 @@ static int onenand_block_write(loff_t to, size_t len,
}
if (!withoob)
ret = mtd->write(mtd, ofs, blocksize, &_retlen, buf);
ret = mtd_write(mtd, ofs, blocksize, &_retlen, buf);
else
ret = onenand_write_oneblock_withoob(ofs, buf, &_retlen);
if (ret) {
@ -195,7 +195,7 @@ static int onenand_block_erase(u32 start, u32 size, int force)
int blocksize = 1 << this->erase_shift;
for (ofs = start; ofs < (start + size); ofs += blocksize) {
ret = mtd->block_isbad(mtd, ofs);
ret = mtd_block_isbad(mtd, ofs);
if (ret && !force) {
printf("Skip erase bad block %d at 0x%x\n",
(u32)(ofs >> this->erase_shift), (u32)ofs);
@ -206,7 +206,7 @@ static int onenand_block_erase(u32 start, u32 size, int force)
instr.len = blocksize;
instr.priv = force;
instr.mtd = mtd;
ret = mtd->erase(mtd, &instr);
ret = mtd_erase(mtd, &instr);
if (ret) {
printf("erase failed block %d at 0x%x\n",
(u32)(ofs >> this->erase_shift), (u32)ofs);
@ -261,7 +261,7 @@ static int onenand_block_test(u32 start, u32 size)
while (blocks < end_block) {
printf("\rTesting block %d at 0x%x", (u32)(ofs >> this->erase_shift), (u32)ofs);
ret = mtd->block_isbad(mtd, ofs);
ret = mtd_block_isbad(mtd, ofs);
if (ret) {
printf("Skip erase bad block %d at 0x%x\n",
(u32)(ofs >> this->erase_shift), (u32)ofs);
@ -270,19 +270,19 @@ static int onenand_block_test(u32 start, u32 size)
instr.addr = ofs;
instr.len = blocksize;
ret = mtd->erase(mtd, &instr);
ret = mtd_erase(mtd, &instr);
if (ret) {
printk("Erase failed 0x%x, %d\n", (u32)ofs, ret);
goto next;
}
ret = mtd->write(mtd, ofs, blocksize, &retlen, buf);
ret = mtd_write(mtd, ofs, blocksize, &retlen, buf);
if (ret) {
printk("Write failed 0x%x, %d\n", (u32)ofs, ret);
goto next;
}
ret = mtd->read(mtd, ofs, blocksize, &retlen, verify_buf);
ret = mtd_read(mtd, ofs, blocksize, &retlen, verify_buf);
if (ret) {
printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
goto next;
@ -324,7 +324,7 @@ static int onenand_dump(struct mtd_info *mtd, ulong off, int only_oob)
ops.len = mtd->writesize;
ops.ooblen = mtd->oobsize;
ops.retlen = 0;
i = mtd->read_oob(mtd, addr, &ops);
i = mtd_read_oob(mtd, addr, &ops);
if (i < 0) {
printf("Error (%d) reading page %08lx\n", i, off);
free(datbuf);
@ -373,7 +373,7 @@ static int do_onenand_bad(cmd_tbl_t * cmdtp, int flag, int argc, char * const ar
/* Currently only one OneNAND device is supported */
printf("\nDevice %d bad blocks:\n", 0);
for (ofs = 0; ofs < mtd->size; ofs += mtd->erasesize) {
if (mtd->block_isbad(mtd, ofs))
if (mtd_block_isbad(mtd, ofs))
printf(" %08x\n", (u32)ofs);
}
@ -530,7 +530,7 @@ static int do_onenand_markbad(cmd_tbl_t * cmdtp, int flag, int argc, char * cons
while (argc > 0) {
addr = simple_strtoul(*argv, NULL, 16);
if (mtd->block_markbad(mtd, addr)) {
if (mtd_block_markbad(mtd, addr)) {
printf("block 0x%08lx NOT marked "
"as bad! ERROR %d\n",
addr, ret);

6
common/env_onenand.c
View File

@ -68,7 +68,7 @@ void env_relocate_spec(void)
/* Check OneNAND exist */
if (mtd->writesize)
/* Ignore read fail */
mtd->read(mtd, env_addr, ONENAND_MAX_ENV_SIZE,
mtd_read(mtd, env_addr, ONENAND_MAX_ENV_SIZE,
&retlen, (u_char *)buf);
else
mtd->writesize = MAX_ONENAND_PAGESIZE;
@ -113,12 +113,12 @@ int saveenv(void)
#endif
instr.addr = env_addr;
instr.mtd = mtd;
if (mtd->erase(mtd, &instr)) {
if (mtd_erase(mtd, &instr)) {
printf("OneNAND: erase failed at 0x%08llx\n", env_addr);
return 1;
}
if (mtd->write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen,
if (mtd_write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen,
(u_char *)&env_new)) {
printf("OneNAND: write failed at 0x%llx\n", instr.addr);
return 2;

4
drivers/mtd/Makefile
View File

@ -25,7 +25,9 @@ include $(TOPDIR)/config.mk
LIB := $(obj)libmtd.o
COBJS-$(CONFIG_MTD_DEVICE) += mtdcore.o
ifneq (,$(findstring y,$(CONFIG_MTD_DEVICE)$(CONFIG_CMD_NAND)$(CONFIG_CMD_ONENAND)))
COBJS-y += mtdcore.o
endif
COBJS-$(CONFIG_MTD_PARTITIONS) += mtdpart.o
COBJS-$(CONFIG_MTD_CONCAT) += mtdconcat.o
COBJS-$(CONFIG_HAS_DATAFLASH) += at45.o

12
drivers/mtd/cfi_mtd.c
View File

@ -244,12 +244,12 @@ int cfi_mtd_init(void)
mtd->size = fi->size;
mtd->writesize = 1;
mtd->erase = cfi_mtd_erase;
mtd->read = cfi_mtd_read;
mtd->write = cfi_mtd_write;
mtd->sync = cfi_mtd_sync;
mtd->lock = cfi_mtd_lock;
mtd->unlock = cfi_mtd_unlock;
mtd->_erase = cfi_mtd_erase;
mtd->_read = cfi_mtd_read;
mtd->_write = cfi_mtd_write;
mtd->_sync = cfi_mtd_sync;
mtd->_lock = cfi_mtd_lock;
mtd->_unlock = cfi_mtd_unlock;
mtd->priv = fi;
if (add_mtd_device(mtd))

98
drivers/mtd/mtdconcat.c
View File

@ -70,14 +70,14 @@ concat_read(struct mtd_info *mtd, loff_t from, size_t len,
/* Entire transaction goes into this subdev */
size = len;
err = subdev->read(subdev, from, size, &retsize, buf);
err = mtd_read(subdev, from, size, &retsize, buf);
/* Save information about bitflips! */
if (unlikely(err)) {
if (err == -EBADMSG) {
if (mtd_is_eccerr(err)) {
mtd->ecc_stats.failed++;
ret = err;
} else if (err == -EUCLEAN) {
} else if (mtd_is_bitflip(err)) {
mtd->ecc_stats.corrected++;
/* Do not overwrite -EBADMSG !! */
if (!ret)
@ -105,9 +105,6 @@ concat_write(struct mtd_info *mtd, loff_t to, size_t len,
int err = -EINVAL;
int i;
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
*retlen = 0;
for (i = 0; i < concat->num_subdev; i++) {
@ -124,11 +121,7 @@ concat_write(struct mtd_info *mtd, loff_t to, size_t len,
else
size = len;
if (!(subdev->flags & MTD_WRITEABLE))
err = -EROFS;
else
err = subdev->write(subdev, to, size, &retsize, buf);
err = mtd_write(subdev, to, size, &retsize, buf);
if (err)
break;
@ -165,16 +158,16 @@ concat_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops)
if (from + devops.len > subdev->size)
devops.len = subdev->size - from;
err = subdev->read_oob(subdev, from, &devops);
err = mtd_read_oob(subdev, from, &devops);
ops->retlen += devops.retlen;
ops->oobretlen += devops.oobretlen;
/* Save information about bitflips! */
if (unlikely(err)) {
if (err == -EBADMSG) {
if (mtd_is_eccerr(err)) {
mtd->ecc_stats.failed++;
ret = err;
} else if (err == -EUCLEAN) {
} else if (mtd_is_bitflip(err)) {
mtd->ecc_stats.corrected++;
/* Do not overwrite -EBADMSG !! */
if (!ret)
@ -225,7 +218,7 @@ concat_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops)
if (to + devops.len > subdev->size)
devops.len = subdev->size - to;
err = subdev->write_oob(subdev, to, &devops);
err = mtd_write_oob(subdev, to, &devops);
ops->retlen += devops.retlen;
if (err)
return err;
@ -271,7 +264,7 @@ static int concat_dev_erase(struct mtd_info *mtd, struct erase_info *erase)
* FIXME: Allow INTERRUPTIBLE. Which means
* not having the wait_queue head on the stack.
*/
err = mtd->erase(mtd, erase);
err = mtd_erase(mtd, erase);
if (!err) {
set_current_state(TASK_UNINTERRUPTIBLE);
add_wait_queue(&waitq, &wait);
@ -294,15 +287,6 @@ static int concat_erase(struct mtd_info *mtd, struct erase_info *instr)
uint64_t length, offset = 0;
struct erase_info *erase;
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
if (instr->addr > concat->mtd.size)
return -EINVAL;
if (instr->len + instr->addr > concat->mtd.size)
return -EINVAL;
/*
* Check for proper erase block alignment of the to-be-erased area.
* It is easier to do this based on the super device's erase
@ -350,8 +334,6 @@ static int concat_erase(struct mtd_info *mtd, struct erase_info *instr)
return -EINVAL;
}
instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
/* make a local copy of instr to avoid modifying the caller's struct */
erase = kmalloc(sizeof (struct erase_info), GFP_KERNEL);
@ -390,10 +372,6 @@ static int concat_erase(struct mtd_info *mtd, struct erase_info *instr)
else
erase->len = length;
if (!(subdev->flags & MTD_WRITEABLE)) {
err = -EROFS;
break;
}
length -= erase->len;
if ((err = concat_dev_erase(subdev, erase))) {
/* sanity check: should never happen since
@ -429,9 +407,6 @@ static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
struct mtd_concat *concat = CONCAT(mtd);
int i, err = -EINVAL;
if ((len + ofs) > mtd->size)
return -EINVAL;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
uint64_t size;
@ -446,7 +421,7 @@ static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
else
size = len;
err = subdev->lock(subdev, ofs, size);
err = mtd_lock(subdev, ofs, size);
if (err)
break;
@ -467,9 +442,6 @@ static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
struct mtd_concat *concat = CONCAT(mtd);
int i, err = 0;
if ((len + ofs) > mtd->size)
return -EINVAL;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
uint64_t size;
@ -484,7 +456,7 @@ static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
else
size = len;
err = subdev->unlock(subdev, ofs, size);
err = mtd_unlock(subdev, ofs, size);
if (err)
break;
@ -507,7 +479,7 @@ static void concat_sync(struct mtd_info *mtd)
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
subdev->sync(subdev);
mtd_sync(subdev);
}
}
@ -516,12 +488,9 @@ static int concat_block_isbad(struct mtd_info *mtd, loff_t ofs)
struct mtd_concat *concat = CONCAT(mtd);
int i, res = 0;
if (!concat->subdev[0]->block_isbad)
if (!mtd_can_have_bb(concat->subdev[0]))
return res;
if (ofs > mtd->size)
return -EINVAL;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
@ -530,7 +499,7 @@ static int concat_block_isbad(struct mtd_info *mtd, loff_t ofs)
continue;
}
res = subdev->block_isbad(subdev, ofs);
res = mtd_block_isbad(subdev, ofs);
break;
}
@ -542,12 +511,9 @@ static int concat_block_markbad(struct mtd_info *mtd, loff_t ofs)
struct mtd_concat *concat = CONCAT(mtd);
int i, err = -EINVAL;
if (!concat->subdev[0]->block_markbad)
if (!mtd_can_have_bb(concat->subdev[0]))
return 0;
if (ofs > mtd->size)
return -EINVAL;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
@ -556,7 +522,7 @@ static int concat_block_markbad(struct mtd_info *mtd, loff_t ofs)
continue;
}
err = subdev->block_markbad(subdev, ofs);
err = mtd_block_markbad(subdev, ofs);
if (!err)
mtd->ecc_stats.badblocks++;
break;
@ -609,14 +575,14 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c
concat->mtd.subpage_sft = subdev[0]->subpage_sft;
concat->mtd.oobsize = subdev[0]->oobsize;
concat->mtd.oobavail = subdev[0]->oobavail;
if (subdev[0]->read_oob)
concat->mtd.read_oob = concat_read_oob;
if (subdev[0]->write_oob)
concat->mtd.write_oob = concat_write_oob;
if (subdev[0]->block_isbad)
concat->mtd.block_isbad = concat_block_isbad;
if (subdev[0]->block_markbad)
concat->mtd.block_markbad = concat_block_markbad;
if (subdev[0]->_read_oob)
concat->mtd._read_oob = concat_read_oob;
if (subdev[0]->_write_oob)
concat->mtd._write_oob = concat_write_oob;
if (subdev[0]->_block_isbad)
concat->mtd._block_isbad = concat_block_isbad;
if (subdev[0]->_block_markbad)
concat->mtd._block_markbad = concat_block_markbad;
concat->mtd.ecc_stats.badblocks = subdev[0]->ecc_stats.badblocks;
@ -653,8 +619,8 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c
if (concat->mtd.writesize != subdev[i]->writesize ||
concat->mtd.subpage_sft != subdev[i]->subpage_sft ||
concat->mtd.oobsize != subdev[i]->oobsize ||
!concat->mtd.read_oob != !subdev[i]->read_oob ||
!concat->mtd.write_oob != !subdev[i]->write_oob) {
!concat->mtd._read_oob != !subdev[i]->_read_oob ||
!concat->mtd._write_oob != !subdev[i]->_write_oob) {
kfree(concat);
printk("Incompatible OOB or ECC data on \"%s\"\n",
subdev[i]->name);
@ -669,12 +635,12 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c
concat->num_subdev = num_devs;
concat->mtd.name = name;
concat->mtd.erase = concat_erase;
concat->mtd.read = concat_read;
concat->mtd.write = concat_write;
concat->mtd.sync = concat_sync;
concat->mtd.lock = concat_lock;
concat->mtd.unlock = concat_unlock;
concat->mtd._erase = concat_erase;
concat->mtd._read = concat_read;
concat->mtd._write = concat_write;
concat->mtd._sync = concat_sync;
concat->mtd._lock = concat_lock;
concat->mtd._unlock = concat_unlock;
/*
* Combine the erase block size info of the subdevices:

191
drivers/mtd/mtdcore.c
View File

@ -25,6 +25,11 @@ int add_mtd_device(struct mtd_info *mtd)
mtd->index = i;
mtd->usecount = 0;
/* default value if not set by driver */
if (mtd->bitflip_threshold == 0)
mtd->bitflip_threshold = mtd->ecc_strength;
/* No need to get a refcount on the module containing
the notifier, since we hold the mtd_table_mutex */
@ -186,3 +191,189 @@ void mtd_get_len_incl_bad(struct mtd_info *mtd, uint64_t offset,
}
}
#endif /* defined(CONFIG_CMD_MTDPARTS_SPREAD) */
/*
* Erase is an asynchronous operation. Device drivers are supposed
* to call instr->callback() whenever the operation completes, even
* if it completes with a failure.
* Callers are supposed to pass a callback function and wait for it
* to be called before writing to the block.
*/
int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
{
if (instr->addr > mtd->size || instr->len > mtd->size - instr->addr)
return -EINVAL;
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
if (!instr->len) {
instr->state = MTD_ERASE_DONE;
mtd_erase_callback(instr);
return 0;
}
return mtd->_erase(mtd, instr);
}
int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
u_char *buf)
{
if (from < 0 || from > mtd->size || len > mtd->size - from)
return -EINVAL;
if (!len)
return 0;
return mtd->_read(mtd, from, len, retlen, buf);
}
int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
const u_char *buf)
{
*retlen = 0;
if (to < 0 || to > mtd->size || len > mtd->size - to)
return -EINVAL;
if (!mtd->_write || !(mtd->flags & MTD_WRITEABLE))
return -EROFS;
if (!len)
return 0;
return mtd->_write(mtd, to, len, retlen, buf);
}
/*
* In blackbox flight recorder like scenarios we want to make successful writes
* in interrupt context. panic_write() is only intended to be called when its
* known the kernel is about to panic and we need the write to succeed. Since
* the kernel is not going to be running for much longer, this function can
* break locks and delay to ensure the write succeeds (but not sleep).
*/
int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
const u_char *buf)
{
*retlen = 0;
if (!mtd->_panic_write)
return -EOPNOTSUPP;
if (to < 0 || to > mtd->size || len > mtd->size - to)
return -EINVAL;
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
if (!len)
return 0;
return mtd->_panic_write(mtd, to, len, retlen, buf);
}
int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops)
{
ops->retlen = ops->oobretlen = 0;
if (!mtd->_read_oob)
return -EOPNOTSUPP;
return mtd->_read_oob(mtd, from, ops);
}
/*
* Method to access the protection register area, present in some flash
* devices. The user data is one time programmable but the factory data is read
* only.
*/
int mtd_get_fact_prot_info(struct mtd_info *mtd, struct otp_info *buf,
size_t len)
{
if (!mtd->_get_fact_prot_info)
return -EOPNOTSUPP;
if (!len)
return 0;
return mtd->_get_fact_prot_info(mtd, buf, len);
}
int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
*retlen = 0;
if (!mtd->_read_fact_prot_reg)
return -EOPNOTSUPP;
if (!len)
return 0;
return mtd->_read_fact_prot_reg(mtd, from, len, retlen, buf);
}
int mtd_get_user_prot_info(struct mtd_info *mtd, struct otp_info *buf,
size_t len)
{
if (!mtd->_get_user_prot_info)
return -EOPNOTSUPP;
if (!len)
return 0;
return mtd->_get_user_prot_info(mtd, buf, len);
}
int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
*retlen = 0;
if (!mtd->_read_user_prot_reg)
return -EOPNOTSUPP;
if (!len)
return 0;
return mtd->_read_user_prot_reg(mtd, from, len, retlen, buf);
}
int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, u_char *buf)
{
*retlen = 0;
if (!mtd->_write_user_prot_reg)
return -EOPNOTSUPP;
if (!len)
return 0;
return mtd->_write_user_prot_reg(mtd, to, len, retlen, buf);
}
int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len)
{
if (!mtd->_lock_user_prot_reg)
return -EOPNOTSUPP;
if (!len)
return 0;
return mtd->_lock_user_prot_reg(mtd, from, len);
}
/* Chip-supported device locking */
int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
if (!mtd->_lock)
return -EOPNOTSUPP;
if (ofs < 0 || ofs > mtd->size || len > mtd->size - ofs)
return -EINVAL;
if (!len)
return 0;
return mtd->_lock(mtd, ofs, len);
}
int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
if (!mtd->_unlock)
return -EOPNOTSUPP;
if (ofs < 0 || ofs > mtd->size || len > mtd->size - ofs)
return -EINVAL;
if (!len)
return 0;
return mtd->_unlock(mtd, ofs, len);
}
int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
{
if (!mtd->_block_isbad)
return 0;
if (ofs < 0 || ofs > mtd->size)
return -EINVAL;
return mtd->_block_isbad(mtd, ofs);
}
int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
if (!mtd->_block_markbad)
return -EOPNOTSUPP;
if (ofs < 0 || ofs > mtd->size)
return -EINVAL;
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
return mtd->_block_markbad(mtd, ofs);
}

156
drivers/mtd/mtdpart.c
View File

@ -52,17 +52,11 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
int res;
stats = part->master->ecc_stats;
if (from >= mtd->size)
len = 0;
else if (from + len > mtd->size)
len = mtd->size - from;
res = part->master->read(part->master, from + part->offset,
len, retlen, buf);
res = mtd_read(part->master, from + part->offset, len, retlen, buf);
if (unlikely(res)) {
if (res == -EUCLEAN)
if (mtd_is_bitflip(res))
mtd->ecc_stats.corrected += part->master->ecc_stats.corrected - stats.corrected;
if (res == -EBADMSG)
if (mtd_is_eccerr(res))
mtd->ecc_stats.failed += part->master->ecc_stats.failed - stats.failed;
}
return res;
@ -78,12 +72,12 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from,
return -EINVAL;
if (ops->datbuf && from + ops->len > mtd->size)
return -EINVAL;
res = part->master->read_oob(part->master, from + part->offset, ops);
res = mtd_read_oob(part->master, from + part->offset, ops);
if (unlikely(res)) {
if (res == -EUCLEAN)
if (mtd_is_bitflip(res))
mtd->ecc_stats.corrected++;
if (res == -EBADMSG)
if (mtd_is_eccerr(res))
mtd->ecc_stats.failed++;
}
return res;
@ -93,58 +87,35 @@ static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
size_t len, size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
return part->master->read_user_prot_reg(part->master, from,
len, retlen, buf);
return mtd_read_user_prot_reg(part->master, from, len, retlen, buf);
}
static int part_get_user_prot_info(struct mtd_info *mtd,
struct otp_info *buf, size_t len)
{
struct mtd_part *part = PART(mtd);
return part->master->get_user_prot_info(part->master, buf, len);
return mtd_get_user_prot_info(part->master, buf, len);
}
static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
size_t len, size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
return part->master->read_fact_prot_reg(part->master, from,
len, retlen, buf);
return mtd_read_fact_prot_reg(part->master, from, len, retlen, buf);
}
static int part_get_fact_prot_info(struct mtd_info *mtd, struct otp_info *buf,
size_t len)
{
struct mtd_part *part = PART(mtd);
return part->master->get_fact_prot_info(part->master, buf, len);
return mtd_get_fact_prot_info(part->master, buf, len);
}
static int part_write(struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, const u_char *buf)
{
struct mtd_part *part = PART(mtd);
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
if (to >= mtd->size)
len = 0;
else if (to + len > mtd->size)
len = mtd->size - to;
return part->master->write(part->master, to + part->offset,
len, retlen, buf);
}
static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, const u_char *buf)
{
struct mtd_part *part = PART(mtd);
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
if (to >= mtd->size)
len = 0;
else if (to + len > mtd->size)
len = mtd->size - to;
return part->master->panic_write(part->master, to + part->offset,
len, retlen, buf);
return mtd_write(part->master, to + part->offset, len, retlen, buf);
}
static int part_write_oob(struct mtd_info *mtd, loff_t to,
@ -152,41 +123,34 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to,
{
struct mtd_part *part = PART(mtd);
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
if (to >= mtd->size)
return -EINVAL;
if (ops->datbuf && to + ops->len > mtd->size)
return -EINVAL;
return part->master->write_oob(part->master, to + part->offset, ops);
return mtd_write_oob(part->master, to + part->offset, ops);
}
static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
size_t len, size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
return part->master->write_user_prot_reg(part->master, from,
len, retlen, buf);
return mtd_write_user_prot_reg(part->master, from, len, retlen, buf);
}
static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
size_t len)
{
struct mtd_part *part = PART(mtd);
return part->master->lock_user_prot_reg(part->master, from, len);
return mtd_lock_user_prot_reg(part->master, from, len);
}
static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
{
struct mtd_part *part = PART(mtd);
int ret;
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
if (instr->addr >= mtd->size)
return -EINVAL;
instr->addr += part->offset;
ret = part->master->erase(part->master, instr);
ret = mtd_erase(part->master, instr);
if (ret) {
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
@ -197,7 +161,7 @@ static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
void mtd_erase_callback(struct erase_info *instr)
{
if (instr->mtd->erase == part_erase) {
if (instr->mtd->_erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
@ -211,32 +175,26 @@ void mtd_erase_callback(struct erase_info *instr)
static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
struct mtd_part *part = PART(mtd);
if ((len + ofs) > mtd->size)
return -EINVAL;
return part->master->lock(part->master, ofs + part->offset, len);
return mtd_lock(part->master, ofs + part->offset, len);
}
static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
struct mtd_part *part = PART(mtd);
if ((len + ofs) > mtd->size)
return -EINVAL;
return part->master->unlock(part->master, ofs + part->offset, len);
return mtd_unlock(part->master, ofs + part->offset, len);
}
static void part_sync(struct mtd_info *mtd)
{
struct mtd_part *part = PART(mtd);
part->master->sync(part->master);
mtd_sync(part->master);
}
static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
{
struct mtd_part *part = PART(mtd);
if (ofs >= mtd->size)
return -EINVAL;
ofs += part->offset;
return part->master->block_isbad(part->master, ofs);
return mtd_block_isbad(part->master, ofs);
}
static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
@ -244,12 +202,8 @@ static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
struct mtd_part *part = PART(mtd);
int res;
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
if (ofs >= mtd->size)
return -EINVAL;
ofs += part->offset;
res = part->master->block_markbad(part->master, ofs);
res = mtd_block_markbad(part->master, ofs);
if (!res)
mtd->ecc_stats.badblocks++;
return res;
@ -303,39 +257,36 @@ static struct mtd_part *add_one_partition(struct mtd_info *master,
slave->mtd.name = part->name;
slave->mtd.owner = master->owner;
slave->mtd.read = part_read;
slave->mtd.write = part_write;
slave->mtd._read = part_read;
slave->mtd._write = part_write;
if (master->panic_write)
slave->mtd.panic_write = part_panic_write;
if (master->read_oob)
slave->mtd.read_oob = part_read_oob;
if (master->write_oob)
slave->mtd.write_oob = part_write_oob;
if (master->read_user_prot_reg)
slave->mtd.read_user_prot_reg = part_read_user_prot_reg;
if (master->read_fact_prot_reg)
slave->mtd.read_fact_prot_reg = part_read_fact_prot_reg;
if (master->write_user_prot_reg)
slave->mtd.write_user_prot_reg = part_write_user_prot_reg;
if (master->lock_user_prot_reg)
slave->mtd.lock_user_prot_reg = part_lock_user_prot_reg;
if (master->get_user_prot_info)
slave->mtd.get_user_prot_info = part_get_user_prot_info;
if (master->get_fact_prot_info)
slave->mtd.get_fact_prot_info = part_get_fact_prot_info;
if (master->sync)
slave->mtd.sync = part_sync;
if (master->lock)
slave->mtd.lock = part_lock;
if (master->unlock)
slave->mtd.unlock = part_unlock;
if (master->block_isbad)
slave->mtd.block_isbad = part_block_isbad;
if (master->block_markbad)
slave->mtd.block_markbad = part_block_markbad;
slave->mtd.erase = part_erase;
if (master->_read_oob)
slave->mtd._read_oob = part_read_oob;
if (master->_write_oob)
slave->mtd._write_oob = part_write_oob;
if (master->_read_user_prot_reg)
slave->mtd._read_user_prot_reg = part_read_user_prot_reg;
if (master->_read_fact_prot_reg)
slave->mtd._read_fact_prot_reg = part_read_fact_prot_reg;
if (master->_write_user_prot_reg)
slave->mtd._write_user_prot_reg = part_write_user_prot_reg;
if (master->_lock_user_prot_reg)
slave->mtd._lock_user_prot_reg = part_lock_user_prot_reg;
if (master->_get_user_prot_info)
slave->mtd._get_user_prot_info = part_get_user_prot_info;
if (master->_get_fact_prot_info)
slave->mtd._get_fact_prot_info = part_get_fact_prot_info;
if (master->_sync)
slave->mtd._sync = part_sync;
if (master->_lock)
slave->mtd._lock = part_lock;
if (master->_unlock)
slave->mtd._unlock = part_unlock;
if (master->_block_isbad)
slave->mtd._block_isbad = part_block_isbad;
if (master->_block_markbad)
slave->mtd._block_markbad = part_block_markbad;
slave->mtd._erase = part_erase;
slave->master = master;
slave->offset = part->offset;
slave->index = partno;
@ -416,12 +367,11 @@ static struct mtd_part *add_one_partition(struct mtd_info *master,
}
slave->mtd.ecclayout = master->ecclayout;
if (master->block_isbad) {
if (master->_block_isbad) {
uint64_t offs = 0;
while (offs < slave->mtd.size) {
if (master->block_isbad(master,
offs + slave->offset))
if (mtd_block_isbad(master, offs + slave->offset))
slave->mtd.ecc_stats.badblocks++;
offs += slave->mtd.erasesize;
}

17
drivers/mtd/nand/atmel_nand.c
View File

@ -489,7 +489,7 @@ normal_check:
}
static int atmel_nand_pmecc_read_page(struct mtd_info *mtd,
struct nand_chip *chip, uint8_t *buf, int page)
struct nand_chip *chip, uint8_t *buf, int oob_required, int page)
{
struct atmel_nand_host *host = chip->priv;
int eccsize = chip->ecc.size;
@ -529,8 +529,9 @@ static int atmel_nand_pmecc_read_page(struct mtd_info *mtd,
return 0;
}
static void atmel_nand_pmecc_write_page(struct mtd_info *mtd,
struct nand_chip *chip, const uint8_t *buf)
static int atmel_nand_pmecc_write_page(struct mtd_info *mtd,
struct nand_chip *chip, const uint8_t *buf,
int oob_required)
{
struct atmel_nand_host *host = chip->priv;
uint32_t *eccpos = chip->ecc.layout->eccpos;
@ -557,7 +558,7 @@ static void atmel_nand_pmecc_write_page(struct mtd_info *mtd,
if (!timeout) {
printk(KERN_ERR "atmel_nand : Timeout to read PMECC status, fail to write PMECC in oob\n");
return;
goto out;
}
for (i = 0; i < host->pmecc_sector_number; i++) {
@ -570,6 +571,8 @@ static void atmel_nand_pmecc_write_page(struct mtd_info *mtd,
}
}
chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
out:
return 0;
}
static void atmel_pmecc_core_init(struct mtd_info *mtd)
@ -706,6 +709,7 @@ static int atmel_pmecc_nand_init_params(struct nand_chip *nand,
nand->ecc.read_page = atmel_nand_pmecc_read_page;
nand->ecc.write_page = atmel_nand_pmecc_write_page;
nand->ecc.strength = cap;
atmel_pmecc_core_init(mtd);
@ -775,9 +779,10 @@ static int atmel_nand_calculate(struct mtd_info *mtd,
* mtd: mtd info structure
* chip: nand chip info structure
* buf: buffer to store read data
* oob_required: caller expects OOB data read to chip->oob_poi
*/
static int atmel_nand_read_page(struct mtd_info *mtd,
struct nand_chip *chip, uint8_t *buf, int page)
static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
{
int eccsize = chip->ecc.size;
int eccbytes = chip->ecc.bytes;

2
drivers/mtd/nand/bfin_nand.c
View File

@ -374,9 +374,11 @@ int board_nand_init(struct nand_chip *chip)
if (!NAND_IS_512()) {
chip->ecc.bytes = 3;
chip->ecc.size = 256;
chip->ecc.strength = 1;
} else {
chip->ecc.bytes = 6;
chip->ecc.size = 512;
chip->ecc.strength = 2;
}
chip->ecc.mode = NAND_ECC_HW;
chip->ecc.calculate = bfin_nfc_calculate_ecc;

4
drivers/mtd/nand/davinci_nand.c
View File

@ -607,12 +607,13 @@ void davinci_nand_init(struct nand_chip *nand)
{
nand->chip_delay = 0;
#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
nand->options |= NAND_USE_FLASH_BBT;
nand->bbt_options |= NAND_BBT_USE_FLASH;
#endif
#ifdef CONFIG_SYS_NAND_HW_ECC
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 512;
nand->ecc.bytes = 3;
nand->ecc.strength = 1;
nand->ecc.calculate = nand_davinci_calculate_ecc;
nand->ecc.correct = nand_davinci_correct_data;
nand->ecc.hwctl = nand_davinci_enable_hwecc;
@ -623,6 +624,7 @@ void davinci_nand_init(struct nand_chip *nand)
nand->ecc.mode = NAND_ECC_HW_OOB_FIRST;
nand->ecc.size = 512;
nand->ecc.bytes = 10;
nand->ecc.strength = 4;
nand->ecc.calculate = nand_davinci_4bit_calculate_ecc;
nand->ecc.correct = nand_davinci_4bit_correct_data;
nand->ecc.hwctl = nand_davinci_4bit_enable_hwecc;

13
drivers/mtd/nand/diskonchip.c
View File

@ -134,7 +134,7 @@ static struct rs_control *rs_decoder;
/*
* The HW decoder in the DoC ASIC's provides us a error syndrome,
* which we must convert to a standard syndrom usable by the generic
* which we must convert to a standard syndrome usable by the generic
* Reed-Solomon library code.
*
* Fabrice Bellard figured this out in the old docecc code. I added
@ -154,7 +154,7 @@ static int doc_ecc_decode(struct rs_control *rs, uint8_t *data, uint8_t *ecc)
ds[3] = ((ecc[3] & 0xc0) >> 6) | ((ecc[0] & 0xff) << 2);
parity = ecc[1];
/* Initialize the syndrom buffer */
/* Initialize the syndrome buffer */
for (i = 0; i < NROOTS; i++)
s[i] = ds[0];
/*
@ -1033,7 +1033,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf);
else
WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
if (no_ecc_failures && (ret == -EBADMSG)) {
if (no_ecc_failures && mtd_is_eccerr(ret)) {
printk(KERN_ERR "suppressing ECC failure\n");
ret = 0;
}
@ -1073,7 +1073,7 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch
size_t retlen;
for (offs = 0; offs < mtd->size; offs += mtd->erasesize) {
ret = mtd->read(mtd, offs, mtd->writesize, &retlen, buf);
ret = mtd_read(mtd, offs, mtd->writesize, &retlen, buf);
if (retlen != mtd->writesize)
continue;
if (ret) {
@ -1098,7 +1098,7 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch
/* Only one mediaheader was found. We want buf to contain a
mediaheader on return, so we'll have to re-read the one we found. */
offs = doc->mh0_page << this->page_shift;
ret = mtd->read(mtd, offs, mtd->writesize, &retlen, buf);
ret = mtd_read(mtd, offs, mtd->writesize, &retlen, buf);
if (retlen != mtd->writesize) {
/* Insanity. Give up. */
printk(KERN_ERR "Read DiskOnChip Media Header once, but can't reread it???\n");
@ -1658,7 +1658,8 @@ static int __init doc_probe(unsigned long physadr)
nand->ecc.mode = NAND_ECC_HW_SYNDROME;
nand->ecc.size = 512;
nand->ecc.bytes = 6;
nand->options = NAND_USE_FLASH_BBT;
nand->ecc.strength = 2;
nand->bbt_options = NAND_BBT_USE_FLASH;
doc->physadr = physadr;
doc->virtadr = virtadr;

17
drivers/mtd/nand/fsl_elbc_nand.c
View File

@ -640,9 +640,8 @@ static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip)
return fsl_elbc_read_byte(mtd);
}
static int fsl_elbc_read_page(struct mtd_info *mtd,
struct nand_chip *chip,
uint8_t *buf, int page)
static int fsl_elbc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
{
fsl_elbc_read_buf(mtd, buf, mtd->writesize);
fsl_elbc_read_buf(mtd, chip->oob_poi, mtd->oobsize);
@ -656,12 +655,13 @@ static int fsl_elbc_read_page(struct mtd_info *mtd,
/* ECC will be calculated automatically, and errors will be detected in
* waitfunc.
*/
static void fsl_elbc_write_page(struct mtd_info *mtd,
struct nand_chip *chip,
const uint8_t *buf)
static int fsl_elbc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required)
{
fsl_elbc_write_buf(mtd, buf, mtd->writesize);
fsl_elbc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
return 0;
}
static struct fsl_elbc_ctrl *elbc_ctrl;
@ -747,8 +747,8 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr)
nand->bbt_md = &bbt_mirror_descr;
/* set up nand options */
nand->options = NAND_NO_READRDY | NAND_NO_AUTOINCR |
NAND_USE_FLASH_BBT | NAND_NO_SUBPAGE_WRITE;
nand->options = NAND_NO_SUBPAGE_WRITE;
nand->bbt_options = NAND_BBT_USE_FLASH;
nand->controller = &elbc_ctrl->controller;
nand->priv = priv;
@ -769,6 +769,7 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr)
nand->ecc.size = 512;
nand->ecc.bytes = 3;
nand->ecc.steps = 1;
nand->ecc.strength = 1;
} else {
/* otherwise fall back to default software ECC */
nand->ecc.mode = NAND_ECC_SOFT;

20
drivers/mtd/nand/fsl_ifc_nand.c
View File

@ -686,9 +686,8 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
return nand_fsr;
}
static int fsl_ifc_read_page(struct mtd_info *mtd,
struct nand_chip *chip,
uint8_t *buf, int page)
static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
{
struct fsl_ifc_mtd *priv = chip->priv;
struct fsl_ifc_ctrl *ctrl = priv->ctrl;
@ -705,12 +704,13 @@ static int fsl_ifc_read_page(struct mtd_info *mtd,
/* ECC will be calculated automatically, and errors will be detected in
* waitfunc.
*/
static void fsl_ifc_write_page(struct mtd_info *mtd,
struct nand_chip *chip,
const uint8_t *buf)
static int fsl_ifc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required)
{
fsl_ifc_write_buf(mtd, buf, mtd->writesize);
fsl_ifc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
return 0;
}
static void fsl_ifc_ctrl_init(void)
@ -858,8 +858,8 @@ static int fsl_ifc_chip_init(int devnum, u8 *addr)
nand->bbt_md = &bbt_mirror_descr;
/* set up nand options */
nand->options = NAND_NO_READRDY | NAND_NO_AUTOINCR |
NAND_USE_FLASH_BBT | NAND_NO_SUBPAGE_WRITE;
nand->options = NAND_NO_SUBPAGE_WRITE;
nand->bbt_options = NAND_BBT_USE_FLASH;
if (cspr & CSPR_PORT_SIZE_16) {
nand->read_byte = fsl_ifc_read_byte16;
@ -890,11 +890,13 @@ static int fsl_ifc_chip_init(int devnum, u8 *addr)
bbt_mirror_descr.offs = 0;
}
nand->ecc.strength = 4;
priv->bufnum_mask = 15;
break;
case CSOR_NAND_PGS_2K:
layout = &oob_2048_ecc4;
nand->ecc.strength = 4;
priv->bufnum_mask = 3;
break;
@ -902,8 +904,10 @@ static int fsl_ifc_chip_init(int devnum, u8 *addr)
if ((csor & CSOR_NAND_ECC_MODE_MASK) ==
CSOR_NAND_ECC_MODE_4) {
layout = &oob_4096_ecc4;
nand->ecc.strength = 4;
} else {
layout = &oob_4096_ecc8;
nand->ecc.strength = 8;
nand->ecc.bytes = 16;
}

5
drivers/mtd/nand/fsmc_nand.c
View File

@ -341,6 +341,7 @@ void fsmc_enable_hwecc(struct mtd_info *mtd, int mode)
* @mtd: mtd info structure
* @chip: nand chip info structure
* @buf: buffer to store read data
* @oob_required: caller expects OOB data read to chip->oob_poi
* @page: page number to read
*
* This routine is needed for fsmc verison 8 as reading from NAND chip has to be
@ -350,7 +351,7 @@ void fsmc_enable_hwecc(struct mtd_info *mtd, int mode)
* max of 8 bits)
*/
static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int page)
uint8_t *buf, int oob_required, int page)
{
struct fsmc_eccplace *fsmc_eccpl;
int i, j, s, stat, eccsize = chip->ecc.size;
@ -452,6 +453,7 @@ int fsmc_nand_init(struct nand_chip *nand)
switch (fsmc_version) {
case FSMC_VER8:
nand->ecc.bytes = 13;
nand->ecc.strength = 8;
nand->ecc.correct = fsmc_bch8_correct_data;
nand->ecc.read_page = fsmc_read_page_hwecc;
if (mtd->writesize == 512)
@ -466,6 +468,7 @@ int fsmc_nand_init(struct nand_chip *nand)
break;
default:
nand->ecc.bytes = 3;
nand->ecc.strength = 1;
nand->ecc.layout = &fsmc_ecc1_layout;
nand->ecc.correct = nand_correct_data;
break;

1
drivers/mtd/nand/jz4740_nand.c
View File

@ -253,6 +253,7 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.mode = NAND_ECC_HW_OOB_FIRST;
nand->ecc.size = CONFIG_SYS_NAND_ECCSIZE;
nand->ecc.bytes = CONFIG_SYS_NAND_ECCBYTES;
nand->ecc.strength = 4;
nand->ecc.layout = &qi_lb60_ecclayout_2gb;
nand->chip_delay = 50;
nand->options = NAND_USE_FLASH_BBT;

2
drivers/mtd/nand/mpc5121_nfc.c
View File

@ -621,7 +621,7 @@ int board_nand_init(struct nand_chip *chip)
chip->write_buf = mpc5121_nfc_write_buf;
chip->verify_buf = mpc5121_nfc_verify_buf;
chip->select_chip = mpc5121_nfc_select_chip;
chip->options = NAND_NO_AUTOINCR | NAND_USE_FLASH_BBT;
chip->bbt_options = NAND_BBT_USE_FLASH;
chip->ecc.mode = NAND_ECC_SOFT;
/* Reset NAND Flash controller */

25
drivers/mtd/nand/mxc_nand.c
View File

@ -396,7 +396,7 @@ static void mxc_nand_enable_hwecc(struct mtd_info *mtd, int mode)
#if defined(MXC_NFC_V2_1) || defined(MXC_NFC_V3_2)
static int mxc_nand_read_oob_syndrome(struct mtd_info *mtd,
struct nand_chip *chip,
int page, int sndcmd)
int page)
{
struct mxc_nand_host *host = chip->priv;
uint8_t *buf = chip->oob_poi;
@ -450,6 +450,7 @@ static int mxc_nand_read_oob_syndrome(struct mtd_info *mtd,
static int mxc_nand_read_page_raw_syndrome(struct mtd_info *mtd,
struct nand_chip *chip,
uint8_t *buf,
int oob_required,
int page)
{
struct mxc_nand_host *host = chip->priv;
@ -494,6 +495,7 @@ static int mxc_nand_read_page_raw_syndrome(struct mtd_info *mtd,
static int mxc_nand_read_page_syndrome(struct mtd_info *mtd,
struct nand_chip *chip,
uint8_t *buf,
int oob_required,
int page)
{
struct mxc_nand_host *host = chip->priv;
@ -583,9 +585,10 @@ static int mxc_nand_write_oob_syndrome(struct mtd_info *mtd,
return status & NAND_STATUS_FAIL ? -EIO : 0;
}
static void mxc_nand_write_page_raw_syndrome(struct mtd_info *mtd,
static int mxc_nand_write_page_raw_syndrome(struct mtd_info *mtd,
struct nand_chip *chip,
const uint8_t *buf)
const uint8_t *buf,
int oob_required)
{
struct mxc_nand_host *host = chip->priv;
int eccsize = chip->ecc.size;
@ -619,11 +622,13 @@ static void mxc_nand_write_page_raw_syndrome(struct mtd_info *mtd,
size = mtd->oobsize - (oob - chip->oob_poi);
if (size)
chip->write_buf(mtd, oob, size);
return 0;
}
static void mxc_nand_write_page_syndrome(struct mtd_info *mtd,
static int mxc_nand_write_page_syndrome(struct mtd_info *mtd,
struct nand_chip *chip,
const uint8_t *buf)
const uint8_t *buf,
int oob_required)
{
struct mxc_nand_host *host = chip->priv;
int i, n, eccsize = chip->ecc.size;
@ -662,6 +667,7 @@ static void mxc_nand_write_page_syndrome(struct mtd_info *mtd,
i = mtd->oobsize - (oob - chip->oob_poi);
if (i)
chip->write_buf(mtd, oob, i);
return 0;
}
static int mxc_nand_correct_data(struct mtd_info *mtd, u_char *dat,
@ -1188,7 +1194,7 @@ int board_nand_init(struct nand_chip *this)
#endif
#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
this->options |= NAND_USE_FLASH_BBT;
this->bbt_options |= NAND_BBT_USE_FLASH;
this->bbt_td = &bbt_main_descr;
this->bbt_md = &bbt_mirror_descr;
#endif
@ -1236,6 +1242,13 @@ int board_nand_init(struct nand_chip *this)
this->ecc.mode = NAND_ECC_HW;
}
if (this->ecc.mode == NAND_ECC_HW) {
if (is_mxc_nfc_1())
this->ecc.strength = 1;
else
this->ecc.strength = 4;
}
host->pagesize_2k = 0;
this->ecc.size = 512;

34
drivers/mtd/nand/mxs_nand.c
View File

@ -546,7 +546,8 @@ static uint8_t mxs_nand_read_byte(struct mtd_info *mtd)
* Read a page from NAND.
*/
static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand,
uint8_t *buf, int page)
uint8_t *buf, int oob_required,
int page)
{
struct mxs_nand_info *nand_info = nand->priv;
struct mxs_dma_desc *d;
@ -691,8 +692,9 @@ rtn:
/*
* Write a page to NAND.
*/
static void mxs_nand_ecc_write_page(struct mtd_info *mtd,
struct nand_chip *nand, const uint8_t *buf)
static int mxs_nand_ecc_write_page(struct mtd_info *mtd,
struct nand_chip *nand, const uint8_t *buf,
int oob_required)
{
struct mxs_nand_info *nand_info = nand->priv;
struct mxs_dma_desc *d;
@ -748,6 +750,7 @@ static void mxs_nand_ecc_write_page(struct mtd_info *mtd,
rtn:
mxs_nand_return_dma_descs(nand_info);
return 0;
}
/*
@ -763,7 +766,7 @@ static int mxs_nand_hook_read_oob(struct mtd_info *mtd, loff_t from,
struct mxs_nand_info *nand_info = chip->priv;
int ret;
if (ops->mode == MTD_OOB_RAW)
if (ops->mode == MTD_OPS_RAW)
nand_info->raw_oob_mode = 1;
else
nand_info->raw_oob_mode = 0;
@ -788,7 +791,7 @@ static int mxs_nand_hook_write_oob(struct mtd_info *mtd, loff_t to,
struct mxs_nand_info *nand_info = chip->priv;
int ret;
if (ops->mode == MTD_OOB_RAW)
if (ops->mode == MTD_OPS_RAW)
nand_info->raw_oob_mode = 1;
else
nand_info->raw_oob_mode = 0;
@ -866,7 +869,7 @@ static int mxs_nand_hook_block_markbad(struct mtd_info *mtd, loff_t ofs)
* what to do.
*/
static int mxs_nand_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *nand,
int page, int cmd)
int page)
{
struct mxs_nand_info *nand_info = nand->priv;
@ -997,19 +1000,19 @@ static int mxs_nand_scan_bbt(struct mtd_info *mtd)
writel(BCH_CTRL_COMPLETE_IRQ_EN, &bch_regs->hw_bch_ctrl_set);
/* Hook some operations at the MTD level. */
if (mtd->read_oob != mxs_nand_hook_read_oob) {
nand_info->hooked_read_oob = mtd->read_oob;
mtd->read_oob = mxs_nand_hook_read_oob;
if (mtd->_read_oob != mxs_nand_hook_read_oob) {
nand_info->hooked_read_oob = mtd->_read_oob;
mtd->_read_oob = mxs_nand_hook_read_oob;
}
if (mtd->write_oob != mxs_nand_hook_write_oob) {
nand_info->hooked_write_oob = mtd->write_oob;
mtd->write_oob = mxs_nand_hook_write_oob;
if (mtd->_write_oob != mxs_nand_hook_write_oob) {
nand_info->hooked_write_oob = mtd->_write_oob;
mtd->_write_oob = mxs_nand_hook_write_oob;
}
if (mtd->block_markbad != mxs_nand_hook_block_markbad) {
nand_info->hooked_block_markbad = mtd->block_markbad;
mtd->block_markbad = mxs_nand_hook_block_markbad;
if (mtd->_block_markbad != mxs_nand_hook_block_markbad) {
nand_info->hooked_block_markbad = mtd->_block_markbad;
mtd->_block_markbad = mxs_nand_hook_block_markbad;
}
/* We use the reference implementation for bad block management. */
@ -1163,6 +1166,7 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.bytes = 9;
nand->ecc.size = 512;
nand->ecc.strength = 8;
return 0;

1654
drivers/mtd/nand/nand_base.c
View File

File diff suppressed because it is too large Load Diff

818
drivers/mtd/nand/nand_bbt.c
View File

File diff suppressed because it is too large Load Diff

14
drivers/mtd/nand/nand_ids.c
View File

@ -71,14 +71,15 @@ const struct nand_flash_dev nand_flash_ids[] = {
* These are the new chips with large page size. The pagesize and the
* erasesize is determined from the extended id bytes
*/
#define LP_OPTIONS (NAND_SAMSUNG_LP_OPTIONS | NAND_NO_READRDY | NAND_NO_AUTOINCR)
#define LP_OPTIONS NAND_SAMSUNG_LP_OPTIONS
#define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
/*512 Megabit */
/* 512 Megabit */
{"NAND 64MiB 1,8V 8-bit", 0xA2, 0, 64, 0, LP_OPTIONS},
{"NAND 64MiB 1,8V 8-bit", 0xA0, 0, 64, 0, LP_OPTIONS},
{"NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, LP_OPTIONS},
{"NAND 64MiB 3,3V 8-bit", 0xD0, 0, 64, 0, LP_OPTIONS},
{"NAND 64MiB 3,3V 8-bit", 0xF0, 0, 64, 0, LP_OPTIONS},
{"NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, LP_OPTIONS16},
{"NAND 64MiB 1,8V 16-bit", 0xB0, 0, 64, 0, LP_OPTIONS16},
{"NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, LP_OPTIONS16},
@ -157,9 +158,7 @@ const struct nand_flash_dev nand_flash_ids[] = {
* writes possible, but not implemented now
*/
{"AND 128MiB 3,3V 8-bit", 0x01, 2048, 128, 0x4000,
NAND_IS_AND | NAND_NO_AUTOINCR |NAND_NO_READRDY | NAND_4PAGE_ARRAY |
BBT_AUTO_REFRESH
},
NAND_IS_AND | NAND_4PAGE_ARRAY | BBT_AUTO_REFRESH},
{NULL,}
};
@ -176,6 +175,9 @@ const struct nand_manufacturers nand_manuf_ids[] = {
{NAND_MFR_STMICRO, "ST Micro"},
{NAND_MFR_HYNIX, "Hynix"},
{NAND_MFR_MICRON, "Micron"},
{NAND_MFR_AMD, "AMD"},
{NAND_MFR_AMD, "AMD/Spansion"},
{NAND_MFR_MACRONIX, "Macronix"},
{NAND_MFR_EON, "Eon"},
{0x0, "Unknown"}
};

23
drivers/mtd/nand/nand_util.c
View File

@ -121,7 +121,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
WATCHDOG_RESET();
if (!opts->scrub && bbtest) {
int ret = meminfo->block_isbad(meminfo, erase.addr);
int ret = mtd_block_isbad(meminfo, erase.addr);
if (ret > 0) {
if (!opts->quiet)
printf("\rSkipping bad block at "
@ -144,7 +144,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
erased_length++;
result = meminfo->erase(meminfo, &erase);
result = mtd_erase(meminfo, &erase);
if (result != 0) {
printf("\n%s: MTD Erase failure: %d\n",
mtd_device, result);
@ -153,15 +153,16 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
/* format for JFFS2 ? */
if (opts->jffs2 && chip->ecc.layout->oobavail >= 8) {
chip->ops.ooblen = 8;
chip->ops.datbuf = NULL;
chip->ops.oobbuf = (uint8_t *)&cleanmarker;
chip->ops.ooboffs = 0;
chip->ops.mode = MTD_OOB_AUTO;
struct mtd_oob_ops ops;
ops.ooblen = 8;
ops.datbuf = NULL;
ops.oobbuf = (uint8_t *)&cleanmarker;
ops.ooboffs = 0;
ops.mode = MTD_OPS_AUTO_OOB;
result = meminfo->write_oob(meminfo,
result = mtd_write_oob(meminfo,
erase.addr,
&chip->ops);
&ops);
if (result != 0) {
printf("\n%s: MTD writeoob failure: %d\n",
mtd_device, result);
@ -605,7 +606,7 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
ops.len = pagesize;
ops.ooblen = nand->oobsize;
ops.mode = MTD_OOB_AUTO;
ops.mode = MTD_OPS_AUTO_OOB;
ops.ooboffs = 0;
pages = write_size / pagesize_oob;
@ -615,7 +616,7 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
ops.datbuf = p_buffer;
ops.oobbuf = ops.datbuf + pagesize;
rval = nand->write_oob(nand, offset, &ops);
rval = mtd_write_oob(nand, offset, &ops);
if (rval != 0)
break;

1
drivers/mtd/nand/ndfc.c
View File

@ -216,6 +216,7 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 256;
nand->ecc.bytes = 3;
nand->ecc.strength = 1;
nand->select_chip = ndfc_select_chip;
#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT

1
drivers/mtd/nand/nomadik.c
View File

@ -212,6 +212,7 @@ int board_nand_init(struct nand_chip *chip)
chip->ecc.mode = NAND_ECC_HW;
chip->ecc.bytes = 3;
chip->ecc.size = 512;
chip->ecc.strength = 1;
chip->ecc.layout = &nomadik_ecc_layout;
chip->ecc.calculate = nomadik_ecc_calculate;
chip->ecc.hwctl = nomadik_ecc_hwctl;

6
drivers/mtd/nand/omap_gpmc.c
View File

@ -590,11 +590,12 @@ static int omap_correct_data_bch(struct mtd_info *mtd, uint8_t *dat,
* @mtd: mtd info structure
* @chip: nand chip info structure
* @buf: buffer to store read data
* @oob_required: caller expects OOB data read to chip->oob_poi
* @page: page number to read
*
*/
static int omap_read_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int page)
uint8_t *buf, int oob_required, int page)
{
int i, eccsize = chip->ecc.size;
int eccbytes = chip->ecc.bytes;
@ -804,6 +805,7 @@ void omap_nand_switch_ecc(uint32_t hardware, uint32_t eccstrength)
nand->ecc.hwctl = NULL;
nand->ecc.correct = NULL;
nand->ecc.calculate = NULL;
nand->ecc.strength = eccstrength;
/* Setup the ecc configurations again */
if (hardware) {
@ -901,7 +903,7 @@ int board_nand_init(struct nand_chip *nand)
nand->IO_ADDR_W = (void __iomem *)&gpmc_cfg->cs[cs].nand_cmd;
nand->cmd_ctrl = omap_nand_hwcontrol;
nand->options = NAND_NO_PADDING | NAND_CACHEPRG | NAND_NO_AUTOINCR;
nand->options = NAND_NO_PADDING | NAND_CACHEPRG;
/* If we are 16 bit dev, our gpmc config tells us that */
if ((readl(&gpmc_cfg->cs[cs].config1) & 0x3000) == 0x1000)
nand->options |= NAND_BUSWIDTH_16;

1
drivers/mtd/nand/s3c2410_nand.c
View File

@ -173,6 +173,7 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = CONFIG_SYS_NAND_ECCSIZE;
nand->ecc.bytes = CONFIG_SYS_NAND_ECCBYTES;
nand->ecc.strength = 1;
#else
nand->ecc.mode = NAND_ECC_SOFT;
#endif

27
drivers/mtd/nand/tegra_nand.c
View File

@ -707,7 +707,7 @@ static int nand_rw_page(struct mtd_info *mtd, struct nand_chip *chip,
* -EIO when command timeout
*/
static int nand_read_page_hwecc(struct mtd_info *mtd,
struct nand_chip *chip, uint8_t *buf, int page)
struct nand_chip *chip, uint8_t *buf, int oob_required, int page)
{
return nand_rw_page(mtd, chip, buf, page, 1, 0);
}
@ -719,8 +719,8 @@ static int nand_read_page_hwecc(struct mtd_info *mtd,
* @param chip nand chip info structure
* @param buf data buffer
*/
static void nand_write_page_hwecc(struct mtd_info *mtd,
struct nand_chip *chip, const uint8_t *buf)
static int nand_write_page_hwecc(struct mtd_info *mtd,
struct nand_chip *chip, const uint8_t *buf, int oob_required)
{
int page;
struct nand_drv *info;
@ -731,6 +731,7 @@ static void nand_write_page_hwecc(struct mtd_info *mtd,
(readl(&info->reg->addr_reg2) << 16);
nand_rw_page(mtd, chip, (uint8_t *)buf, page, 1, 1);
return 0;
}
@ -746,7 +747,7 @@ static void nand_write_page_hwecc(struct mtd_info *mtd,
* -EIO when command timeout
*/
static int nand_read_page_raw(struct mtd_info *mtd,
struct nand_chip *chip, uint8_t *buf, int page)
struct nand_chip *chip, uint8_t *buf, int oob_required, int page)
{
return nand_rw_page(mtd, chip, buf, page, 0, 0);
}
@ -758,8 +759,8 @@ static int nand_read_page_raw(struct mtd_info *mtd,
* @param chip nand chip info structure
* @param buf data buffer
*/
static void nand_write_page_raw(struct mtd_info *mtd,
struct nand_chip *chip, const uint8_t *buf)
static int nand_write_page_raw(struct mtd_info *mtd,
struct nand_chip *chip, const uint8_t *buf, int oob_required)
{
int page;
struct nand_drv *info;
@ -769,6 +770,7 @@ static void nand_write_page_raw(struct mtd_info *mtd,
(readl(&info->reg->addr_reg2) << 16);
nand_rw_page(mtd, chip, (uint8_t *)buf, page, 0, 1);
return 0;
}
/**
@ -873,19 +875,13 @@ static int nand_rw_oob(struct mtd_info *mtd, struct nand_chip *chip,
* @param mtd mtd info structure
* @param chip nand chip info structure
* @param page page number to read
* @param sndcmd flag whether to issue read command or not
* @return 1 - issue read command next time
* 0 - not to issue
*/
static int nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
int page, int sndcmd)
int page)
{
if (sndcmd) {
chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
sndcmd = 0;
}
chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
nand_rw_oob(mtd, chip, page, 0, 0);
return sndcmd;
return 0;
}
/**
@ -1018,6 +1014,7 @@ int tegra_nand_init(struct nand_chip *nand, int devnum)
nand->ecc.write_page_raw = nand_write_page_raw;
nand->ecc.read_oob = nand_read_oob;
nand->ecc.write_oob = nand_write_oob;
nand->ecc.strength = 1;
nand->select_chip = nand_select_chip;
nand->dev_ready = nand_dev_ready;
nand->priv = &nand_ctrl;

2
drivers/mtd/nand/tegra_nand.h
View File

@ -224,7 +224,7 @@ enum {
#define BCH_DEC_STATUS_MAX_CORR_CNT_MASK (0x1f << 8)
#define BCH_DEC_STATUS_PAGE_NUMBER_MASK 0xFF
#define LP_OPTIONS (NAND_NO_READRDY | NAND_NO_AUTOINCR)
#define LP_OPTIONS 0
struct nand_ctlr {
u32 command; /* offset 00h */

82
drivers/mtd/onenand/onenand_base.c
View File

@ -743,7 +743,7 @@ static void onenand_release_device(struct mtd_info *mtd)
}
/**
* onenand_transfer_auto_oob - [Internal] oob auto-placement transfer
* onenand_transfer_auto_oob - [INTERN] oob auto-placement transfer
* @param mtd MTD device structure
* @param buf destination address
* @param column oob offset to read from
@ -807,7 +807,7 @@ static int onenand_recover_lsb(struct mtd_info *mtd, loff_t addr, int status)
return status;
/* check if we failed due to uncorrectable error */
if (status != -EBADMSG && status != ONENAND_BBT_READ_ECC_ERROR)
if (!mtd_is_eccerr(status) && status != ONENAND_BBT_READ_ECC_ERROR)
return status;
/* check if address lies in MLC region */
@ -847,7 +847,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
MTDDEBUG(MTD_DEBUG_LEVEL3, "onenand_read_ops_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
if (ops->mode == MTD_OOB_AUTO)
if (ops->mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@ -914,7 +914,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
thisooblen = oobsize - oobcolumn;
thisooblen = min_t(int, thisooblen, ooblen - oobread);
if (ops->mode == MTD_OOB_AUTO)
if (ops->mode == MTD_OPS_AUTO_OOB)
onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen);
else
this->read_bufferram(mtd, 0, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen);
@ -929,7 +929,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
if (unlikely(ret))
ret = onenand_recover_lsb(mtd, from, ret);
onenand_update_bufferram(mtd, from, !ret);
if (ret == -EBADMSG)
if (mtd_is_eccerr(ret))
ret = 0;
}
@ -950,7 +950,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
/* Now wait for load */
ret = this->wait(mtd, FL_READING);
onenand_update_bufferram(mtd, from, !ret);
if (ret == -EBADMSG)
if (mtd_is_eccerr(ret))
ret = 0;
}
}
@ -987,7 +987,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
struct mtd_ecc_stats stats;
int read = 0, thislen, column, oobsize;
size_t len = ops->ooblen;
mtd_oob_mode_t mode = ops->mode;
unsigned int mode = ops->mode;
u_char *buf = ops->oobbuf;
int ret = 0, readcmd;
@ -998,7 +998,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
/* Initialize return length value */
ops->oobretlen = 0;
if (mode == MTD_OOB_AUTO)
if (mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@ -1041,7 +1041,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
break;
}
if (mode == MTD_OOB_AUTO)
if (mode == MTD_OPS_AUTO_OOB)
onenand_transfer_auto_oob(mtd, buf, column, thislen);
else
this->read_bufferram(mtd, 0, ONENAND_SPARERAM, buf, column, thislen);
@ -1115,10 +1115,10 @@ int onenand_read_oob(struct mtd_info *mtd, loff_t from,
int ret;
switch (ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_AUTO:
case MTD_OPS_PLACE_OOB:
case MTD_OPS_AUTO_OOB:
break;
case MTD_OOB_RAW:
case MTD_OPS_RAW:
/* Not implemented yet */
default:
return -EINVAL;
@ -1337,7 +1337,7 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
#define NOTALIGNED(x) ((x & (this->subpagesize - 1)) != 0)
/**
* onenand_fill_auto_oob - [Internal] oob auto-placement transfer
* onenand_fill_auto_oob - [INTERN] oob auto-placement transfer
* @param mtd MTD device structure
* @param oob_buf oob buffer
* @param buf source address
@ -1404,19 +1404,13 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
ops->retlen = 0;
ops->oobretlen = 0;
/* Do not allow writes past end of device */
if (unlikely((to + len) > mtd->size)) {
printk(KERN_ERR "onenand_write_ops_nolock: Attempt write to past end of device\n");
return -EINVAL;
}
/* Reject writes, which are not page aligned */
if (unlikely(NOTALIGNED(to) || NOTALIGNED(len))) {
printk(KERN_ERR "onenand_write_ops_nolock: Attempt to write not page aligned data\n");
return -EINVAL;
}
if (ops->mode == MTD_OOB_AUTO)
if (ops->mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@ -1450,7 +1444,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
/* We send data to spare ram with oobsize
* * to prevent byte access */
memset(oobbuf, 0xff, mtd->oobsize);
if (ops->mode == MTD_OOB_AUTO)
if (ops->mode == MTD_OPS_AUTO_OOB)
onenand_fill_auto_oob(mtd, oobbuf, oob, oobcolumn, thisooblen);
else
memcpy(oobbuf + oobcolumn, oob, thisooblen);
@ -1502,7 +1496,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
}
/**
* onenand_write_oob_nolock - [Internal] OneNAND write out-of-band
* onenand_write_oob_nolock - [INTERN] OneNAND write out-of-band
* @param mtd MTD device structure
* @param to offset to write to
* @param len number of bytes to write
@ -1521,7 +1515,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
u_char *oobbuf;
size_t len = ops->ooblen;
const u_char *buf = ops->oobbuf;
mtd_oob_mode_t mode = ops->mode;
unsigned int mode = ops->mode;
to += ops->ooboffs;
@ -1530,7 +1524,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
/* Initialize retlen, in case of early exit */
ops->oobretlen = 0;
if (mode == MTD_OOB_AUTO)
if (mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@ -1571,7 +1565,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
/* We send data to spare ram with oobsize
* to prevent byte access */
memset(oobbuf, 0xff, mtd->oobsize);
if (mode == MTD_OOB_AUTO)
if (mode == MTD_OPS_AUTO_OOB)
onenand_fill_auto_oob(mtd, oobbuf, buf, column, thislen);
else
memcpy(oobbuf + column, buf, thislen);
@ -1661,10 +1655,10 @@ int onenand_write_oob(struct mtd_info *mtd, loff_t to,
int ret;
switch (ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_AUTO:
case MTD_OPS_PLACE_OOB:
case MTD_OPS_AUTO_OOB:
break;
case MTD_OOB_RAW:
case MTD_OPS_RAW:
/* Not implemented yet */
default:
return -EINVAL;
@ -1720,13 +1714,6 @@ int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
MTDDEBUG(MTD_DEBUG_LEVEL3, "onenand_erase: start = 0x%08x, len = %i\n",
(unsigned int) addr, len);
/* Do not allow erase past end of device */
if (unlikely((len + addr) > mtd->size)) {
MTDDEBUG(MTD_DEBUG_LEVEL0, "onenand_erase:"
"Erase past end of device\n");
return -EINVAL;
}
if (FLEXONENAND(this)) {
/* Find the eraseregion of this address */
i = flexonenand_region(mtd, addr);
@ -1762,8 +1749,6 @@ int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
return -EINVAL;
}
instr->fail_addr = 0xffffffff;
/* Grab the lock and see if the device is available */
onenand_get_device(mtd, FL_ERASING);
@ -1889,7 +1874,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
struct bbm_info *bbm = this->bbm;
u_char buf[2] = {0, 0};
struct mtd_oob_ops ops = {
.mode = MTD_OOB_PLACE,
.mode = MTD_OPS_PLACE_OOB,
.ooblen = 2,
.oobbuf = buf,
.ooboffs = 0,
@ -1915,7 +1900,6 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
*/
int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct onenand_chip *this = mtd->priv;
int ret;
ret = onenand_block_isbad(mtd, ofs);
@ -1926,7 +1910,7 @@ int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
return ret;
}
ret = this->block_markbad(mtd, ofs);
ret = mtd_block_markbad(mtd, ofs);
return ret;
}
@ -2386,7 +2370,7 @@ static int flexonenand_check_blocks_erased(struct mtd_info *mtd,
int i, ret;
int block;
struct mtd_oob_ops ops = {
.mode = MTD_OOB_PLACE,
.mode = MTD_OPS_PLACE_OOB,
.ooboffs = 0,
.ooblen = mtd->oobsize,
.datbuf = NULL,
@ -2645,14 +2629,14 @@ int onenand_probe(struct mtd_info *mtd)
mtd->size = this->chipsize;
mtd->flags = MTD_CAP_NANDFLASH;
mtd->erase = onenand_erase;
mtd->read = onenand_read;
mtd->write = onenand_write;
mtd->read_oob = onenand_read_oob;
mtd->write_oob = onenand_write_oob;
mtd->sync = onenand_sync;
mtd->block_isbad = onenand_block_isbad;
mtd->block_markbad = onenand_block_markbad;
mtd->_erase = onenand_erase;
mtd->_read = onenand_read;
mtd->_write = onenand_write;
mtd->_read_oob = onenand_read_oob;
mtd->_write_oob = onenand_write_oob;
mtd->_sync = onenand_sync;
mtd->_block_isbad = onenand_block_isbad;
mtd->_block_markbad = onenand_block_markbad;
return 0;
}

6
drivers/mtd/onenand/onenand_bbt.c
View File

@ -87,7 +87,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t * buf,
startblock = 0;
from = 0;
ops.mode = MTD_OOB_PLACE;
ops.mode = MTD_OPS_PLACE_OOB;
ops.ooblen = readlen;
ops.oobbuf = buf;
ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0;
@ -200,10 +200,8 @@ int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
len = this->chipsize >> (this->erase_shift + 2);
/* Allocate memory (2bit per block) */
bbm->bbt = malloc(len);
if (!bbm->bbt) {
printk(KERN_ERR "onenand_scan_bbt: Out of memory\n");
if (!bbm->bbt)
return -ENOMEM;
}
/* Clear the memory bad block table */
memset(bbm->bbt, 0x00, len);

2
drivers/mtd/ubi/build.c
View File

@ -539,7 +539,7 @@ static int io_init(struct ubi_device *ubi)
ubi->peb_count = mtd_div_by_eb(ubi->mtd->size, ubi->mtd);
ubi->flash_size = ubi->mtd->size;
if (ubi->mtd->block_isbad && ubi->mtd->block_markbad)
if (mtd_can_have_bb(ubi->mtd))
ubi->bad_allowed = 1;
ubi->min_io_size = ubi->mtd->writesize;

2
drivers/mtd/ubi/eba.c
View File

@ -460,7 +460,7 @@ retry:
if (err == UBI_IO_BITFLIPS) {
scrub = 1;
err = 0;
} else if (err == -EBADMSG) {
} else if (mtd_is_eccerr(err)) {
if (vol->vol_type == UBI_DYNAMIC_VOLUME)
goto out_unlock;
scrub = 1;

12
drivers/mtd/ubi/io.c
View File

@ -154,7 +154,7 @@ int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,
addr = (loff_t)pnum * ubi->peb_size + offset;
retry:
err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf);
err = mtd_read(ubi->mtd, addr, len, &read, buf);
if (err) {
if (err == -EUCLEAN) {
/*
@ -268,7 +268,7 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
}
addr = (loff_t)pnum * ubi->peb_size + offset;
err = ubi->mtd->write(ubi->mtd, addr, len, &written, buf);
err = mtd_write(ubi->mtd, addr, len, &written, buf);
if (err) {
ubi_err("error %d while writing %d bytes to PEB %d:%d, written"
" %zd bytes", err, len, pnum, offset, written);
@ -318,7 +318,7 @@ retry:
ei.callback = erase_callback;
ei.priv = (unsigned long)&wq;
err = ubi->mtd->erase(ubi->mtd, &ei);
err = mtd_erase(ubi->mtd, &ei);
if (err) {
if (retries++ < UBI_IO_RETRIES) {
dbg_io("error %d while erasing PEB %d, retry",
@ -516,7 +516,7 @@ int ubi_io_is_bad(const struct ubi_device *ubi, int pnum)
if (ubi->bad_allowed) {
int ret;
ret = mtd->block_isbad(mtd, (loff_t)pnum * ubi->peb_size);
ret = mtd_block_isbad(mtd, (loff_t)pnum * ubi->peb_size);
if (ret < 0)
ubi_err("error %d while checking if PEB %d is bad",
ret, pnum);
@ -551,7 +551,7 @@ int ubi_io_mark_bad(const struct ubi_device *ubi, int pnum)
if (!ubi->bad_allowed)
return 0;
err = mtd->block_markbad(mtd, (loff_t)pnum * ubi->peb_size);
err = mtd_block_markbad(mtd, (loff_t)pnum * ubi->peb_size);
if (err)
ubi_err("cannot mark PEB %d bad, error %d", pnum, err);
return err;
@ -1242,7 +1242,7 @@ static int paranoid_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
loff_t addr = (loff_t)pnum * ubi->peb_size + offset;
mutex_lock(&ubi->dbg_buf_mutex);
err = ubi->mtd->read(ubi->mtd, addr, len, &read, ubi->dbg_peb_buf);
err = mtd_read(ubi->mtd, addr, len, &read, ubi->dbg_peb_buf);
if (err && err != -EUCLEAN) {
ubi_err("error %d while reading %d bytes from PEB %d:%d, "
"read %zd bytes", err, len, pnum, offset, read);

2
drivers/mtd/ubi/kapi.c
View File

@ -349,7 +349,7 @@ int ubi_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset,
return 0;
err = ubi_eba_read_leb(ubi, vol, lnum, buf, offset, len, check);
if (err && err == -EBADMSG && vol->vol_type == UBI_STATIC_VOLUME) {
if (err && mtd_is_eccerr(err) && vol->vol_type == UBI_STATIC_VOLUME) {
ubi_warn("mark volume %d as corrupted", vol_id);
vol->corrupted = 1;
}

2
drivers/mtd/ubi/misc.c
View File

@ -82,7 +82,7 @@ int ubi_check_volume(struct ubi_device *ubi, int vol_id)
err = ubi_eba_read_leb(ubi, vol, i, buf, 0, size, 1);
if (err) {
if (err == -EBADMSG)
if (mtd_is_eccerr(err))
err = 1;
break;
}

2
drivers/mtd/ubi/vtbl.c
View File

@ -388,7 +388,7 @@ static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi,
err = ubi_io_read_data(ubi, leb[seb->lnum], seb->pnum, 0,
ubi->vtbl_size);
if (err == UBI_IO_BITFLIPS || err == -EBADMSG)
if (err == UBI_IO_BITFLIPS || mtd_is_eccerr(err))
/*
* Scrub the PEB later. Note, -EBADMSG indicates an
* uncorrectable ECC error, but we have our own CRC and

18
fs/yaffs2/yaffs_mtdif.c
View File

@ -70,22 +70,22 @@ int nandmtd_WriteChunkToNAND(struct yaffs_dev *dev, int chunkInNAND,
u8 spareAsBytes[8]; /* OOB */
if (data && !spare)
retval = mtd->write(mtd, addr, dev->data_bytes_per_chunk,
retval = mtd_write(mtd, addr, dev->data_bytes_per_chunk,
&dummy, data);
else if (spare) {
if (dev->param.use_nand_ecc) {
translate_spare2oob(spare, spareAsBytes);
ops.mode = MTD_OOB_AUTO;
ops.mode = MTD_OPS_AUTO_OOB;
ops.ooblen = 8; /* temp hack */
} else {
ops.mode = MTD_OOB_RAW;
ops.mode = MTD_OPS_RAW;
ops.ooblen = YAFFS_BYTES_PER_SPARE;
}
ops.len = data ? dev->data_bytes_per_chunk : ops.ooblen;
ops.datbuf = (u8 *)data;
ops.ooboffs = 0;
ops.oobbuf = spareAsBytes;
retval = mtd->write_oob(mtd, addr, &ops);
retval = mtd_write_oob(mtd, addr, &ops);
}
if (retval == 0)
@ -106,21 +106,21 @@ int nandmtd_ReadChunkFromNAND(struct yaffs_dev *dev, int chunkInNAND, u8 *data,
u8 spareAsBytes[8]; /* OOB */
if (data && !spare)
retval = mtd->read(mtd, addr, dev->data_bytes_per_chunk,
retval = mtd_read(mtd, addr, dev->data_bytes_per_chunk,
&dummy, data);
else if (spare) {
if (dev->param.use_nand_ecc) {
ops.mode = MTD_OOB_AUTO;
ops.mode = MTD_OPS_AUTO_OOB;
ops.ooblen = 8; /* temp hack */
} else {
ops.mode = MTD_OOB_RAW;
ops.mode = MTD_OPS_RAW;
ops.ooblen = YAFFS_BYTES_PER_SPARE;
}
ops.len = data ? dev->data_bytes_per_chunk : ops.ooblen;
ops.datbuf = data;
ops.ooboffs = 0;
ops.oobbuf = spareAsBytes;
retval = mtd->read_oob(mtd, addr, &ops);
retval = mtd_read_oob(mtd, addr, &ops);
if (dev->param.use_nand_ecc)
translate_oob2spare(spare, spareAsBytes);
}
@ -151,7 +151,7 @@ int nandmtd_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber)
/* Todo finish off the ei if required */
retval = mtd->erase(mtd, &ei);
retval = mtd_erase(mtd, &ei);
if (retval == 0)
return YAFFS_OK;

14
fs/yaffs2/yaffs_mtdif2.c
View File

@ -77,13 +77,13 @@ int nandmtd2_write_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc);
}
ops.mode = MTD_OOB_AUTO;
ops.mode = MTD_OPS_AUTO_OOB;
ops.ooblen = (dev->param.inband_tags) ? 0 : packed_tags_size;
ops.len = dev->param.total_bytes_per_chunk;
ops.ooboffs = 0;
ops.datbuf = (u8 *) data;
ops.oobbuf = (dev->param.inband_tags) ? NULL : packed_tags_ptr;
retval = mtd->write_oob(mtd, addr, &ops);
retval = mtd_write_oob(mtd, addr, &ops);
if (retval == 0)
return YAFFS_OK;
@ -121,16 +121,16 @@ int nandmtd2_read_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
}
if (dev->param.inband_tags || (data && !tags))
retval = mtd->read(mtd, addr, dev->param.total_bytes_per_chunk,
retval = mtd_read(mtd, addr, dev->param.total_bytes_per_chunk,
&dummy, data);
else if (tags) {
ops.mode = MTD_OOB_AUTO;
ops.mode = MTD_OPS_AUTO_OOB;
ops.ooblen = packed_tags_size;
ops.len = data ? dev->data_bytes_per_chunk : packed_tags_size;
ops.ooboffs = 0;
ops.datbuf = data;
ops.oobbuf = local_spare;
retval = mtd->read_oob(mtd, addr, &ops);
retval = mtd_read_oob(mtd, addr, &ops);
}
if (dev->param.inband_tags) {
@ -179,7 +179,7 @@ int nandmtd2_MarkNANDBlockBad(struct yaffs_dev *dev, int blockNo)
"nandmtd2_MarkNANDBlockBad %d", blockNo);
retval =
mtd->block_markbad(mtd,
mtd_block_markbad(mtd,
blockNo * dev->param.chunks_per_block *
dev->data_bytes_per_chunk);
@ -198,7 +198,7 @@ int nandmtd2_QueryNANDBlock(struct yaffs_dev *dev, int blockNo,
yaffs_trace(YAFFS_TRACE_MTD, "nandmtd2_QueryNANDBlock %d", blockNo);
retval =
mtd->block_isbad(mtd,
mtd_block_isbad(mtd,
blockNo * dev->param.chunks_per_block *
dev->data_bytes_per_chunk);

2
include/configs/P1022DS.h
View File

@ -316,7 +316,6 @@
#define CONFIG_SYS_HUSH_PARSER
/* Video */
#define CONFIG_FSL_DIU_FB
#ifdef CONFIG_FSL_DIU_FB
#define CONFIG_SYS_DIU_ADDR (CONFIG_SYS_CCSRBAR + 0x10000)
@ -336,7 +335,6 @@
#endif
#ifndef CONFIG_FSL_DIU_FB
#define CONFIG_ATI
#endif
#ifdef CONFIG_ATI

49
include/linux/mtd/bbm.h
View File

@ -81,32 +81,53 @@ struct nand_bbt_descr {
#define NAND_BBT_LASTBLOCK 0x00000010
/* The bbt is at the given page, else we must scan for the bbt */
#define NAND_BBT_ABSPAGE 0x00000020
/* The bbt is at the given page, else we must scan for the bbt */
#define NAND_BBT_SEARCH 0x00000040
/* bbt is stored per chip on multichip devices */
#define NAND_BBT_PERCHIP 0x00000080
/* bbt has a version counter at offset veroffs */
#define NAND_BBT_VERSION 0x00000100
/* Create a bbt if none exists */
#define NAND_BBT_CREATE 0x00000200
/*
* Create an empty BBT with no vendor information. Vendor's information may be
* unavailable, for example, if the NAND controller has a different data and OOB
* layout or if this information is already purged. Must be used in conjunction
* with NAND_BBT_CREATE.
*/
#define NAND_BBT_CREATE_EMPTY 0x00000400
/* Search good / bad pattern through all pages of a block */
#define NAND_BBT_SCANALLPAGES 0x00000400
#define NAND_BBT_SCANALLPAGES 0x00000800
/* Scan block empty during good / bad block scan */
#define NAND_BBT_SCANEMPTY 0x00000800
#define NAND_BBT_SCANEMPTY 0x00001000
/* Write bbt if neccecary */
#define NAND_BBT_WRITE 0x00001000
#define NAND_BBT_WRITE 0x00002000
/* Read and write back block contents when writing bbt */
#define NAND_BBT_SAVECONTENT 0x00002000
#define NAND_BBT_SAVECONTENT 0x00004000
/* Search good / bad pattern on the first and the second page */
#define NAND_BBT_SCAN2NDPAGE 0x00004000
#define NAND_BBT_SCAN2NDPAGE 0x00008000
/* Search good / bad pattern on the last page of the eraseblock */
#define NAND_BBT_SCANLASTPAGE 0x00008000
/* Chip stores bad block marker on BOTH 1st and 6th bytes of OOB */
#define NAND_BBT_SCANBYTE1AND6 0x00100000
/* The nand_bbt_descr was created dynamicaly and must be freed */
#define NAND_BBT_DYNAMICSTRUCT 0x00200000
/* The bad block table does not OOB for marker */
#define NAND_BBT_NO_OOB 0x00400000
#define NAND_BBT_SCANLASTPAGE 0x00010000
/*
* Use a flash based bad block table. By default, OOB identifier is saved in
* OOB area. This option is passed to the default bad block table function.
*/
#define NAND_BBT_USE_FLASH 0x00020000
/*
* Do not store flash based bad block table marker in the OOB area; store it
* in-band.
*/
#define NAND_BBT_NO_OOB 0x00040000
/*
* Do not write new bad block markers to OOB; useful, e.g., when ECC covers
* entire spare area. Must be used with NAND_BBT_USE_FLASH.
*/
#define NAND_BBT_NO_OOB_BBM 0x00080000
/*
* Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr
* was allocated dynamicaly and must be freed in nand_release(). Has no meaning
* in nand_chip.bbt_options.
*/
#define NAND_BBT_DYNAMICSTRUCT 0x80000000
/* The maximum number of blocks to scan for a bbt */
#define NAND_BBT_SCAN_MAXBLOCKS 4

203
include/linux/mtd/mtd.h
View File

@ -9,7 +9,8 @@
#include <linux/types.h>
#include <div64.h>
#include <linux/mtd/mtd-abi.h>
#include <mtd/mtd-abi.h>
#include <asm/errno.h>
#define MTD_CHAR_MAJOR 90
#define MTD_BLOCK_MAJOR 31
@ -65,22 +66,6 @@ struct mtd_erase_region_info {
unsigned long *lockmap; /* If keeping bitmap of locks */
};
/*
* oob operation modes
*
* MTD_OOB_PLACE: oob data are placed at the given offset
* MTD_OOB_AUTO: oob data are automatically placed at the free areas
* which are defined by the ecclayout
* MTD_OOB_RAW: mode to read raw data+oob in one chunk. The oob data
* is inserted into the data. Thats a raw image of the
* flash contents.
*/
typedef enum {
MTD_OOB_PLACE,
MTD_OOB_AUTO,
MTD_OOB_RAW,
} mtd_oob_mode_t;
/**
* struct mtd_oob_ops - oob operation operands
* @mode: operation mode
@ -92,7 +77,7 @@ typedef enum {
* @ooblen: number of oob bytes to write/read
* @oobretlen: number of oob bytes written/read
* @ooboffs: offset of oob data in the oob area (only relevant when
* mode = MTD_OOB_PLACE)
* mode = MTD_OPS_PLACE_OOB or MTD_OPS_RAW)
* @datbuf: data buffer - if NULL only oob data are read/written
* @oobbuf: oob data buffer
*
@ -101,7 +86,7 @@ typedef enum {
* OOB area.
*/
struct mtd_oob_ops {
mtd_oob_mode_t mode;
unsigned int mode;
size_t len;
size_t retlen;
size_t ooblen;
@ -133,13 +118,25 @@ struct mtd_info {
u_int32_t oobsize; /* Amount of OOB data per block (e.g. 16) */
u_int32_t oobavail; /* Available OOB bytes per block */
/*
* read ops return -EUCLEAN if max number of bitflips corrected on any
* one region comprising an ecc step equals or exceeds this value.
* Settable by driver, else defaults to ecc_strength. User can override
* in sysfs. N.B. The meaning of the -EUCLEAN return code has changed;
* see Documentation/ABI/testing/sysfs-class-mtd for more detail.
*/
unsigned int bitflip_threshold;
/* Kernel-only stuff starts here. */
const char *name;
int index;
/* ecc layout structure pointer - read only ! */
/* ECC layout structure pointer - read only! */
struct nand_ecclayout *ecclayout;
/* max number of correctible bit errors per ecc step */
unsigned int ecc_strength;
/* Data for variable erase regions. If numeraseregions is zero,
* it means that the whole device has erasesize as given above.
*/
@ -147,25 +144,17 @@ struct mtd_info {
struct mtd_erase_region_info *eraseregions;
/*
* Erase is an asynchronous operation. Device drivers are supposed
* to call instr->callback() whenever the operation completes, even
* if it completes with a failure.
* Callers are supposed to pass a callback function and wait for it
* to be called before writing to the block.
* Do not call via these pointers, use corresponding mtd_*()
* wrappers instead.
*/
int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
/* This stuff for eXecute-In-Place */
/* phys is optional and may be set to NULL */
int (*point) (struct mtd_info *mtd, loff_t from, size_t len,
int (*_erase) (struct mtd_info *mtd, struct erase_info *instr);
int (*_point) (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, void **virt, phys_addr_t *phys);
/* We probably shouldn't allow XIP if the unpoint isn't a NULL */
void (*unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
void (*_unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
int (*_read) (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf);
int (*_write) (struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, const u_char *buf);
/* In blackbox flight recorder like scenarios we want to make successful
writes in interrupt context. panic_write() is only intended to be
@ -174,24 +163,35 @@ struct mtd_info {
longer, this function can break locks and delay to ensure the write
succeeds (but not sleep). */
int (*panic_write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
int (*_panic_write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
int (*read_oob) (struct mtd_info *mtd, loff_t from,
int (*_read_oob) (struct mtd_info *mtd, loff_t from,
struct mtd_oob_ops *ops);
int (*write_oob) (struct mtd_info *mtd, loff_t to,
int (*_write_oob) (struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops);
int (*_get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf,
size_t len);
int (*_read_fact_prot_reg) (struct mtd_info *mtd, loff_t from,
size_t len, size_t *retlen, u_char *buf);
int (*_get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf,
size_t len);
int (*_read_user_prot_reg) (struct mtd_info *mtd, loff_t from,
size_t len, size_t *retlen, u_char *buf);
int (*_write_user_prot_reg) (struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, u_char *buf);
int (*_lock_user_prot_reg) (struct mtd_info *mtd, loff_t from,
size_t len);
void (*_sync) (struct mtd_info *mtd);
int (*_lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*_unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*_block_isbad) (struct mtd_info *mtd, loff_t ofs);
int (*_block_markbad) (struct mtd_info *mtd, loff_t ofs);
/*
* Methods to access the protection register area, present in some
* flash devices. The user data is one time programmable but the
* factory data is read only.
* If the driver is something smart, like UBI, it may need to maintain
* its own reference counting. The below functions are only for driver.
*/
int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len);
int (*_get_device) (struct mtd_info *mtd);
void (*_put_device) (struct mtd_info *mtd);
/* XXX U-BOOT XXX */
#if 0
@ -201,18 +201,6 @@ struct mtd_info {
*/
int (*writev) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen);
#endif
/* Sync */
void (*sync) (struct mtd_info *mtd);
/* Chip-supported device locking */
int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
/* Bad block management functions */
int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);
/* XXX U-BOOT XXX */
#if 0
struct notifier_block reboot_notifier; /* default mode before reboot */
@ -227,15 +215,59 @@ struct mtd_info {
struct module *owner;
int usecount;
/* If the driver is something smart, like UBI, it may need to maintain
* its own reference counting. The below functions are only for driver.
* The driver may register its callbacks. These callbacks are not
* supposed to be called by MTD users */
int (*get_device) (struct mtd_info *mtd);
void (*put_device) (struct mtd_info *mtd);
};
int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
u_char *buf);
int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
const u_char *buf);
int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
const u_char *buf);
int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops);
static inline int mtd_write_oob(struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops)
{
ops->retlen = ops->oobretlen = 0;
if (!mtd->_write_oob)
return -EOPNOTSUPP;
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
return mtd->_write_oob(mtd, to, ops);
}
int mtd_get_fact_prot_info(struct mtd_info *mtd, struct otp_info *buf,
size_t len);
int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf);
int mtd_get_user_prot_info(struct mtd_info *mtd, struct otp_info *buf,
size_t len);
int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf);
int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, u_char *buf);
int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len);
/* XXX U-BOOT XXX */
#if 0
int mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
unsigned long count, loff_t to, size_t *retlen);
#endif
static inline void mtd_sync(struct mtd_info *mtd)
{
if (mtd->_sync)
mtd->_sync(mtd);
}
int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len);
int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs);
int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs);
static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd)
{
do_div(sz, mtd->erasesize);
@ -247,6 +279,16 @@ static inline uint32_t mtd_mod_by_eb(uint64_t sz, struct mtd_info *mtd)
return do_div(sz, mtd->erasesize);
}
static inline int mtd_has_oob(const struct mtd_info *mtd)
{
return mtd->_read_oob && mtd->_write_oob;
}
static inline int mtd_can_have_bb(const struct mtd_info *mtd)
{
return !!mtd->_block_isbad;
}
/* Kernel-side ioctl definitions */
extern int add_mtd_device(struct mtd_info *mtd);
@ -269,12 +311,6 @@ struct mtd_notifier {
extern void register_mtd_user (struct mtd_notifier *new);
extern int unregister_mtd_user (struct mtd_notifier *old);
int default_mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
unsigned long count, loff_t to, size_t *retlen);
int default_mtd_readv(struct mtd_info *mtd, struct kvec *vecs,
unsigned long count, loff_t from, size_t *retlen);
#endif
#ifdef CONFIG_MTD_PARTITIONS
@ -296,17 +332,34 @@ static inline void mtd_erase_callback(struct erase_info *instr)
#define MTD_DEBUG_LEVEL3 (3) /* Noisy */
#ifdef CONFIG_MTD_DEBUG
#define pr_debug(args...) MTDDEBUG(MTD_DEBUG_LEVEL0, args)
#define MTDDEBUG(n, args...) \
do { \
if (n <= CONFIG_MTD_DEBUG_VERBOSE) \
printk(KERN_INFO args); \
} while(0)
#else /* CONFIG_MTD_DEBUG */
#define pr_debug(args...)
#define MTDDEBUG(n, args...) \
do { \
if (0) \
printk(KERN_INFO args); \
} while(0)
#endif /* CONFIG_MTD_DEBUG */
#define pr_info(args...) MTDDEBUG(MTD_DEBUG_LEVEL0, args)
#define pr_warn(args...) MTDDEBUG(MTD_DEBUG_LEVEL0, args)
#define pr_err(args...) MTDDEBUG(MTD_DEBUG_LEVEL0, args)
static inline int mtd_is_bitflip(int err) {
return err == -EUCLEAN;
}
static inline int mtd_is_eccerr(int err) {
return err == -EBADMSG;
}
static inline int mtd_is_bitflip_or_eccerr(int err) {
return mtd_is_bitflip(err) || mtd_is_eccerr(err);
}
#endif /* __MTD_MTD_H__ */

173
include/linux/mtd/nand.h
View File

@ -46,7 +46,7 @@ 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 576
#define NAND_MAX_OOBSIZE 640
#define NAND_MAX_PAGESIZE 8192
/*
@ -82,6 +82,8 @@ extern void nand_wait_ready(struct mtd_info *mtd);
#define NAND_CMD_READID 0x90
#define NAND_CMD_ERASE2 0xd0
#define NAND_CMD_PARAM 0xec
#define NAND_CMD_GET_FEATURES 0xee
#define NAND_CMD_SET_FEATURES 0xef
#define NAND_CMD_RESET 0xff
#define NAND_CMD_LOCK 0x2a
@ -142,7 +144,7 @@ typedef enum {
#define NAND_ECC_READ 0
/* Reset Hardware ECC for write */
#define NAND_ECC_WRITE 1
/* Enable Hardware ECC before syndrom is read back from flash */
/* Enable Hardware ECC before syndrome is read back from flash */
#define NAND_ECC_READSYN 2
/* Bit mask for flags passed to do_nand_read_ecc */
@ -153,9 +155,7 @@ typedef enum {
* Option constants for bizarre disfunctionality and real
* features.
*/
/* Chip can not auto increment pages */
#define NAND_NO_AUTOINCR 0x00000001
/* Buswitdh is 16 bit */
/* Buswidth is 16 bit */
#define NAND_BUSWIDTH_16 0x00000002
/* Device supports partial programming without padding */
#define NAND_NO_PADDING 0x00000004
@ -179,12 +179,6 @@ typedef enum {
* This happens with the Renesas AG-AND chips, possibly others.
*/
#define BBT_AUTO_REFRESH 0x00000080
/*
* Chip does not require ready check on read. true
* for all large page devices, as they do not support
* autoincrement.
*/
#define NAND_NO_READRDY 0x00000100
/* Chip does not allow subpage writes */
#define NAND_NO_SUBPAGE_WRITE 0x00000200
@ -202,34 +196,21 @@ typedef enum {
(NAND_NO_PADDING | NAND_CACHEPRG | NAND_COPYBACK)
/* Macros to identify the above */
#define NAND_CANAUTOINCR(chip) (!(chip->options & NAND_NO_AUTOINCR))
#define NAND_MUST_PAD(chip) (!(chip->options & NAND_NO_PADDING))
#define NAND_HAS_CACHEPROG(chip) ((chip->options & NAND_CACHEPRG))
#define NAND_HAS_COPYBACK(chip) ((chip->options & NAND_COPYBACK))
#define NAND_HAS_SUBPAGE_READ(chip) ((chip->options & NAND_SUBPAGE_READ))
/* Non chip related options */
/*
* Use a flash based bad block table. OOB identifier is saved in OOB area.
* This option is passed to the default bad block table function.
*/
#define NAND_USE_FLASH_BBT 0x00010000
/* This option skips the bbt scan during initialization. */
#define NAND_SKIP_BBTSCAN 0x00020000
#define NAND_SKIP_BBTSCAN 0x00010000
/*
* This option is defined if the board driver allocates its own buffers
* (e.g. because it needs them DMA-coherent).
*/
#define NAND_OWN_BUFFERS 0x00040000
#define NAND_OWN_BUFFERS 0x00020000
/* Chip may not exist, so silence any errors in scan */
#define NAND_SCAN_SILENT_NODEV 0x00080000
/*
* If passed additionally to NAND_USE_FLASH_BBT then BBT code will not touch
* the OOB area.
*/
#define NAND_USE_FLASH_BBT_NO_OOB 0x00800000
/* Create an empty BBT with no vendor information if the BBT is available */
#define NAND_CREATE_EMPTY_BBT 0x01000000
#define NAND_SCAN_SILENT_NODEV 0x00040000
/* Options set by nand scan */
/* bbt has already been read */
@ -244,6 +225,21 @@ typedef enum {
/* Keep gcc happy */
struct nand_chip;
/* ONFI timing mode, used in both asynchronous and synchronous mode */
#define ONFI_TIMING_MODE_0 (1 << 0)
#define ONFI_TIMING_MODE_1 (1 << 1)
#define ONFI_TIMING_MODE_2 (1 << 2)
#define ONFI_TIMING_MODE_3 (1 << 3)
#define ONFI_TIMING_MODE_4 (1 << 4)
#define ONFI_TIMING_MODE_5 (1 << 5)
#define ONFI_TIMING_MODE_UNKNOWN (1 << 6)
/* ONFI feature address */
#define ONFI_FEATURE_ADDR_TIMING_MODE 0x1
/* ONFI subfeature parameters length */
#define ONFI_SUBFEATURE_PARAM_LEN 4
struct nand_onfi_params {
/* rev info and features block */
/* 'O' 'N' 'F' 'I' */
@ -326,27 +322,32 @@ struct nand_hw_control {
};
/**
* struct nand_ecc_ctrl - Control structure for ecc
* @mode: ecc mode
* @steps: number of ecc steps per page
* @size: data bytes per ecc step
* @bytes: ecc bytes per step
* @total: total number of ecc bytes per page
* @prepad: padding information for syndrome based ecc generators
* @postpad: padding information for syndrome based ecc generators
* struct nand_ecc_ctrl - Control structure for ECC
* @mode: ECC mode
* @steps: number of ECC steps per page
* @size: data bytes per ECC step
* @bytes: ECC bytes per step
* @strength: max number of correctible bits per ECC step
* @total: total number of ECC bytes per page
* @prepad: padding information for syndrome based ECC generators
* @postpad: padding information for syndrome based ECC generators
* @layout: ECC layout control struct pointer
* @priv: pointer to private ecc control data
* @hwctl: function to control hardware ecc generator. Must only
* @priv: pointer to private ECC control data
* @hwctl: function to control hardware ECC generator. Must only
* be provided if an hardware ECC is available
* @calculate: function for ecc calculation or readback from ecc hardware
* @correct: function for ecc correction, matching to ecc generator (sw/hw)
* @calculate: function for ECC calculation or readback from ECC hardware
* @correct: function for ECC correction, matching to ECC generator (sw/hw)
* @read_page_raw: function to read a raw page without ECC
* @write_page_raw: function to write a raw page without ECC
* @read_page: function to read a page according to the ecc generator
* requirements.
* @read_subpage: function to read parts of the page covered by ECC.
* @write_page: function to write a page according to the ecc generator
* @read_page: function to read a page according to the ECC generator
* requirements; returns maximum number of bitflips corrected in
* any single ECC step, 0 if bitflips uncorrectable, -EIO hw error
* @read_subpage: function to read parts of the page covered by ECC;
* returns same as read_page()
* @write_page: function to write a page according to the ECC generator
* requirements.
* @write_oob_raw: function to write chip OOB data without ECC
* @read_oob_raw: function to read chip OOB data without ECC
* @read_oob: function to read chip OOB data
* @write_oob: function to write chip OOB data
*/
@ -356,6 +357,7 @@ struct nand_ecc_ctrl {
int size;
int bytes;
int total;
int strength;
int prepad;
int postpad;
struct nand_ecclayout *layout;
@ -366,25 +368,28 @@ struct nand_ecc_ctrl {
int (*correct)(struct mtd_info *mtd, uint8_t *dat, uint8_t *read_ecc,
uint8_t *calc_ecc);
int (*read_page_raw)(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int page);
void (*write_page_raw)(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf);
uint8_t *buf, int oob_required, int page);
int (*write_page_raw)(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required);
int (*read_page)(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int page);
uint8_t *buf, int oob_required, int page);
int (*read_subpage)(struct mtd_info *mtd, struct nand_chip *chip,
uint32_t offs, uint32_t len, uint8_t *buf);
void (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf);
int (*read_oob)(struct mtd_info *mtd, struct nand_chip *chip, int page,
int sndcmd);
int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required);
int (*write_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip,
int page);
int (*read_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip,
int page);
int (*read_oob)(struct mtd_info *mtd, struct nand_chip *chip, int page);
int (*write_oob)(struct mtd_info *mtd, struct nand_chip *chip,
int page);
};
/**
* struct nand_buffers - buffer structure for read/write
* @ecccalc: buffer for calculated ecc
* @ecccode: buffer for ecc read from flash
* @ecccalc: buffer for calculated ECC
* @ecccode: buffer for ECC read from flash
* @databuf: buffer for data - dynamically sized
*
* Do not change the order of buffers. databuf and oobrbuf must be in
@ -418,7 +423,7 @@ struct nand_buffers {
* mtd->oobsize, mtd->writesize and so on.
* @id_data contains the 8 bytes values of NAND_CMD_READID.
* Return with the bus width.
* @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accesing
* @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accessing
* device ready/busy line. If set to NULL no access to
* ready/busy is available and the ready/busy information
* is read from the chip status register.
@ -426,17 +431,17 @@ struct nand_buffers {
* commands to the chip.
* @waitfunc: [REPLACEABLE] hardwarespecific function for wait on
* ready.
* @ecc: [BOARDSPECIFIC] ecc control ctructure
* @ecc: [BOARDSPECIFIC] ECC control structure
* @buffers: buffer structure for read/write
* @hwcontrol: platform-specific hardware control structure
* @ops: oob operation operands
* @erase_cmd: [INTERN] erase command write function, selectable due
* to AND support.
* @scan_bbt: [REPLACEABLE] function to scan bad block table
* @chip_delay: [BOARDSPECIFIC] chip dependent delay for transferring
* data from array to read regs (tR).
* @state: [INTERN] the current state of the NAND device
* @oob_poi: poison value buffer
* @oob_poi: "poison value buffer," used for laying out OOB data
* before writing
* @page_shift: [INTERN] number of address bits in a page (column
* address bits).
* @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock
@ -445,10 +450,14 @@ struct nand_buffers {
* @options: [BOARDSPECIFIC] various chip options. They can partly
* be set to inform nand_scan about special functionality.
* See the defines for further explanation.
* @bbt_options: [INTERN] bad block specific options. All options used
* here must come from bbm.h. By default, these options
* will be copied to the appropriate nand_bbt_descr's.
* @badblockpos: [INTERN] position of the bad block marker in the oob
* area.
* @badblockbits: [INTERN] number of bits to left-shift the bad block
* number
* @badblockbits: [INTERN] minimum number of set bits in a good block's
* bad block marker position; i.e., BBM == 11110111b is
* not bad when badblockbits == 7
* @cellinfo: [INTERN] MLC/multichip data from chip ident
* @numchips: [INTERN] number of physical chips
* @chipsize: [INTERN] the size of one chip for multichip arrays
@ -460,7 +469,9 @@ struct nand_buffers {
* non 0 if ONFI supported.
* @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is
* supported, 0 otherwise.
* @ecclayout: [REPLACEABLE] the default ecc placement scheme
* @onfi_set_features [REPLACEABLE] set the features for ONFI nand
* @onfi_get_features [REPLACEABLE] get the features for ONFI nand
* @ecclayout: [REPLACEABLE] the default ECC placement scheme
* @bbt: [INTERN] bad block table pointer
* @bbt_td: [REPLACEABLE] bad block table descriptor for flash
* lookup.
@ -468,9 +479,9 @@ struct nand_buffers {
* @badblock_pattern: [REPLACEABLE] bad block scan pattern used for initial
* bad block scan.
* @controller: [REPLACEABLE] a pointer to a hardware controller
* structure which is shared among multiple independend
* structure which is shared among multiple independent
* devices.
* @priv: [OPTIONAL] pointer to private chip date
* @priv: [OPTIONAL] pointer to private chip data
* @errstat: [OPTIONAL] hardware specific function to perform
* additional error status checks (determine if errors are
* correctable).
@ -501,10 +512,16 @@ struct nand_chip {
int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state,
int status, int page);
int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int page, int cached, int raw);
const uint8_t *buf, int oob_required, int page,
int cached, int raw);
int (*onfi_set_features)(struct mtd_info *mtd, struct nand_chip *chip,
int feature_addr, uint8_t *subfeature_para);
int (*onfi_get_features)(struct mtd_info *mtd, struct nand_chip *chip,
int feature_addr, uint8_t *subfeature_para);
int chip_delay;
unsigned int options;
unsigned int bbt_options;
int page_shift;
int phys_erase_shift;
@ -534,8 +551,6 @@ struct nand_chip {
struct nand_buffers *buffers;
struct nand_hw_control hwcontrol;
struct mtd_oob_ops ops;
uint8_t *bbt;
struct nand_bbt_descr *bbt_td;
struct nand_bbt_descr *bbt_md;
@ -557,6 +572,8 @@ struct nand_chip {
#define NAND_MFR_HYNIX 0xad
#define NAND_MFR_MICRON 0x2c
#define NAND_MFR_AMD 0x01
#define NAND_MFR_MACRONIX 0xc2
#define NAND_MFR_EON 0x92
/**
* struct nand_flash_dev - NAND Flash Device ID Structure
@ -615,9 +632,9 @@ extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len,
* @partitions: mtd partition list
* @chip_delay: R/B delay value in us
* @options: Option flags, e.g. 16bit buswidth
* @ecclayout: ecc layout info structure
* @bbt_options: BBT option flags, e.g. NAND_BBT_USE_FLASH
* @ecclayout: ECC layout info structure
* @part_probe_types: NULL-terminated array of probe types
* @priv: hardware controller specific settings
*/
struct platform_nand_chip {
int nr_chips;
@ -627,8 +644,8 @@ struct platform_nand_chip {
struct nand_ecclayout *ecclayout;
int chip_delay;
unsigned int options;
unsigned int bbt_options;
const char **part_probe_types;
void *priv;
};
/* Keep gcc happy */
@ -650,6 +667,7 @@ struct platform_nand_ctrl {
int (*dev_ready)(struct mtd_info *mtd);
void (*select_chip)(struct mtd_info *mtd, int chip);
void (*cmd_ctrl)(struct mtd_info *mtd, int dat, unsigned int ctrl);
unsigned char (*read_byte)(struct mtd_info *mtd);
void *priv;
};
@ -679,4 +697,23 @@ void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len);
void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len);
uint8_t nand_read_byte(struct mtd_info *mtd);
/* return the supported asynchronous timing mode. */
#ifdef CONFIG_SYS_NAND_ONFI_DETECTION
static inline int onfi_get_async_timing_mode(struct nand_chip *chip)
{
if (!chip->onfi_version)
return ONFI_TIMING_MODE_UNKNOWN;
return le16_to_cpu(chip->onfi_params.async_timing_mode);
}
/* return the supported synchronous timing mode. */
static inline int onfi_get_sync_timing_mode(struct nand_chip *chip)
{
if (!chip->onfi_version)
return ONFI_TIMING_MODE_UNKNOWN;
return le16_to_cpu(chip->onfi_params.src_sync_timing_mode);
}
#endif
#endif /* __LINUX_MTD_NAND_H */

3
include/linux/string.h
View File

@ -85,6 +85,9 @@ extern int memcmp(const void *,const void *,__kernel_size_t);
#ifndef __HAVE_ARCH_MEMCHR
extern void * memchr(const void *,int,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_MEMCHR_INV
void *memchr_inv(const void *, int, size_t);
#endif
#ifdef __cplusplus
}

53
include/linux/mtd/mtd-abi.h → include/mtd/mtd-abi.h
View File

@ -24,6 +24,25 @@ struct mtd_oob_buf {
unsigned char __user *ptr;
};
/*
* MTD operation modes
*
* @MTD_OPS_PLACE_OOB: OOB data are placed at the given offset (default)
* @MTD_OPS_AUTO_OOB: OOB data are automatically placed at the free areas
* which are defined by the internal ecclayout
* @MTD_OPS_RAW: data are transferred as-is, with no error correction;
* this mode implies %MTD_OPS_PLACE_OOB
*
* These modes can be passed to ioctl(MEMWRITE) and are also used internally.
* See notes on "MTD file modes" for discussion on %MTD_OPS_RAW vs.
* %MTD_FILE_MODE_RAW.
*/
enum {
MTD_OPS_PLACE_OOB = 0,
MTD_OPS_AUTO_OOB = 1,
MTD_OPS_RAW = 2,
};
#define MTD_ABSENT 0
#define MTD_RAM 1
#define MTD_ROM 2
@ -82,24 +101,42 @@ struct otp_info {
uint32_t locked;
};
/* Get basic MTD characteristics info (better to use sysfs) */
#define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
/* Erase segment of MTD */
#define MEMERASE _IOW('M', 2, struct erase_info_user)
/* Write out-of-band data from MTD */
#define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
/* Read out-of-band data from MTD */
#define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
/* Lock a chip (for MTD that supports it) */
#define MEMLOCK _IOW('M', 5, struct erase_info_user)
/* Unlock a chip (for MTD that supports it) */
#define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
/* Get the number of different erase regions */
#define MEMGETREGIONCOUNT _IOR('M', 7, int)
/* Get information about the erase region for a specific index */
#define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
/* Get info about OOB modes (e.g., RAW, PLACE, AUTO) - legacy interface */
#define MEMSETOOBSEL _IOW('M', 9, struct nand_oobinfo)
#define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo)
/* Check if an eraseblock is bad */
#define MEMGETBADBLOCK _IOW('M', 11, loff_t)
/* Mark an eraseblock as bad */
#define MEMSETBADBLOCK _IOW('M', 12, loff_t)
/* Set OTP (One-Time Programmable) mode (factory vs. user) */
#define OTPSELECT _IOR('M', 13, int)
/* Get number of OTP (One-Time Programmable) regions */
#define OTPGETREGIONCOUNT _IOW('M', 14, int)
/* Get all OTP (One-Time Programmable) info about MTD */
#define OTPGETREGIONINFO _IOW('M', 15, struct otp_info)
/* Lock a given range of user data (must be in mode %MTD_FILE_MODE_OTP_USER) */
#define OTPLOCK _IOR('M', 16, struct otp_info)
/* Get ECC layout (deprecated) */
#define ECCGETLAYOUT _IOR('M', 17, struct nand_ecclayout)
/* Get statistics about corrected/uncorrected errors */
#define ECCGETSTATS _IOR('M', 18, struct mtd_ecc_stats)
/* Set MTD mode on a per-file-descriptor basis (see "MTD file modes") */
#define MTDFILEMODE _IO('M', 19)
/*
@ -146,7 +183,21 @@ struct mtd_ecc_stats {
};
/*
* Read/write file modes for access to MTD
* MTD file modes - for read/write access to MTD
*
* @MTD_FILE_MODE_NORMAL: OTP disabled, ECC enabled
* @MTD_FILE_MODE_OTP_FACTORY: OTP enabled in factory mode
* @MTD_FILE_MODE_OTP_USER: OTP enabled in user mode
* @MTD_FILE_MODE_RAW: OTP disabled, ECC disabled
*
* These modes can be set via ioctl(MTDFILEMODE). The mode mode will be retained
* separately for each open file descriptor.
*
* Note: %MTD_FILE_MODE_RAW provides the same functionality as %MTD_OPS_RAW -
* raw access to the flash, without error correction or autoplacement schemes.
* Wherever possible, the MTD_OPS_* mode will override the MTD_FILE_MODE_* mode
* (e.g., when using ioctl(MEMWRITE)), but in some cases, the MTD_FILE_MODE is
* used out of necessity (e.g., `write()', ioctl(MEMWRITEOOB64)).
*/
enum mtd_file_modes {
MTD_MODE_NORMAL = MTD_OTP_OFF,

8
include/nand.h
View File

@ -56,17 +56,17 @@ extern nand_info_t nand_info[];
static inline int nand_read(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf)
{
return info->read(info, ofs, *len, (size_t *)len, buf);
return mtd_read(info, ofs, *len, (size_t *)len, buf);
}
static inline int nand_write(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf)
{
return info->write(info, ofs, *len, (size_t *)len, buf);
return mtd_write(info, ofs, *len, (size_t *)len, buf);
}
static inline int nand_block_isbad(nand_info_t *info, loff_t ofs)
{
return info->block_isbad(info, ofs);
return mtd_block_isbad(info, ofs);
}
static inline int nand_erase(nand_info_t *info, loff_t off, size_t size)
@ -78,7 +78,7 @@ static inline int nand_erase(nand_info_t *info, loff_t off, size_t size)
instr.len = size;
instr.callback = 0;
return info->erase(info, &instr);
return mtd_erase(info, &instr);
}

59
lib/string.c
View File

@ -617,3 +617,62 @@ void *memchr(const void *s, int c, size_t n)
}
#endif
#ifndef __HAVE_ARCH_MEMCHR_INV
static void *check_bytes8(const u8 *start, u8 value, unsigned int bytes)
{
while (bytes) {
if (*start != value)
return (void *)start;
start++;
bytes--;
}
return NULL;
}
/**
* memchr_inv - Find an unmatching character in an area of memory.
* @start: The memory area
* @c: Find a character other than c
* @bytes: The size of the area.
*
* returns the address of the first character other than @c, or %NULL
* if the whole buffer contains just @c.
*/
void *memchr_inv(const void *start, int c, size_t bytes)
{
u8 value = c;
u64 value64;
unsigned int words, prefix;
if (bytes <= 16)
return check_bytes8(start, value, bytes);
value64 = value;
value64 |= value64 << 8;
value64 |= value64 << 16;
value64 |= value64 << 32;
prefix = (unsigned long)start % 8;
if (prefix) {
u8 *r;
prefix = 8 - prefix;
r = check_bytes8(start, value, prefix);
if (r)
return r;
start += prefix;
bytes -= prefix;
}
words = bytes / 8;
while (words) {
if (*(u64 *)start != value64)
return check_bytes8(start, value, 8);
start += 8;
words--;
}
return check_bytes8(start, value, bytes % 8);
}
#endif