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path: root/drivers/mtd/nand/nand_util.c
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Diffstat (limited to 'drivers/mtd/nand/nand_util.c')
-rw-r--r--drivers/mtd/nand/nand_util.c170
1 files changed, 85 insertions, 85 deletions
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index 71285b6..90bf798 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -42,25 +42,26 @@ typedef struct mtd_info mtd_info_t;
* nand_erase_opts: - erase NAND flash with support for various options
* (jffs2 formatting)
*
- * @param meminfo NAND device to erase
+ * @param mtd nand mtd instance to erase
* @param opts options, @see struct nand_erase_options
* @return 0 in case of success
*
* This code is ported from flash_eraseall.c from Linux mtd utils by
* Arcom Control System Ltd.
*/
-int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
+int nand_erase_opts(struct mtd_info *mtd,
+ const nand_erase_options_t *opts)
{
struct jffs2_unknown_node cleanmarker;
erase_info_t erase;
unsigned long erase_length, erased_length; /* in blocks */
int result;
int percent_complete = -1;
- const char *mtd_device = meminfo->name;
+ const char *mtd_device = mtd->name;
struct mtd_oob_ops oob_opts;
- struct nand_chip *chip = meminfo->priv;
+ struct nand_chip *chip = mtd->priv;
- if ((opts->offset & (meminfo->erasesize - 1)) != 0) {
+ if ((opts->offset & (mtd->erasesize - 1)) != 0) {
printf("Attempt to erase non block-aligned data\n");
return -1;
}
@@ -68,11 +69,11 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
memset(&erase, 0, sizeof(erase));
memset(&oob_opts, 0, sizeof(oob_opts));
- erase.mtd = meminfo;
- erase.len = meminfo->erasesize;
+ erase.mtd = mtd;
+ erase.len = mtd->erasesize;
erase.addr = opts->offset;
- erase_length = lldiv(opts->length + meminfo->erasesize - 1,
- meminfo->erasesize);
+ erase_length = lldiv(opts->length + mtd->erasesize - 1,
+ mtd->erasesize);
cleanmarker.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
cleanmarker.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER);
@@ -97,7 +98,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
for (erased_length = 0;
erased_length < erase_length;
- erase.addr += meminfo->erasesize) {
+ erase.addr += mtd->erasesize) {
WATCHDOG_RESET();
@@ -106,7 +107,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
return -EFBIG;
}
if (!opts->scrub) {
- int ret = mtd_block_isbad(meminfo, erase.addr);
+ int ret = mtd_block_isbad(mtd, erase.addr);
if (ret > 0) {
if (!opts->quiet)
printf("\rSkipping bad block at "
@@ -129,7 +130,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
erased_length++;
- result = mtd_erase(meminfo, &erase);
+ result = mtd_erase(mtd, &erase);
if (result != 0) {
printf("\n%s: MTD Erase failure: %d\n",
mtd_device, result);
@@ -145,9 +146,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
ops.ooboffs = 0;
ops.mode = MTD_OPS_AUTO_OOB;
- result = mtd_write_oob(meminfo,
- erase.addr,
- &ops);
+ result = mtd_write_oob(mtd, erase.addr, &ops);
if (result != 0) {
printf("\n%s: MTD writeoob failure: %d\n",
mtd_device, result);
@@ -303,7 +302,7 @@ int nand_get_lock_status(struct mtd_info *mtd, loff_t offset)
* @param mtd nand mtd instance
* @param start start byte address
* @param length number of bytes to unlock (must be a multiple of
- * page size nand->writesize)
+ * page size mtd->writesize)
* @param allexcept if set, unlock everything not selected
*
* @return 0 on success, -1 in case of error
@@ -399,7 +398,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
* Check if there are any bad blocks, and whether length including bad
* blocks fits into device
*
- * @param nand NAND device
+ * @param mtd nand mtd instance
* @param offset offset in flash
* @param length image length
* @param used length of flash needed for the requested length
@@ -407,8 +406,8 @@ int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
* 1 if the image fits, but there are bad blocks
* -1 if the image does not fit
*/
-static int check_skip_len(nand_info_t *nand, loff_t offset, size_t length,
- size_t *used)
+static int check_skip_len(struct mtd_info *mtd, loff_t offset, size_t length,
+ size_t *used)
{
size_t len_excl_bad = 0;
int ret = 0;
@@ -417,14 +416,14 @@ static int check_skip_len(nand_info_t *nand, loff_t offset, size_t length,
size_t block_len, block_off;
loff_t block_start;
- if (offset >= nand->size)
+ if (offset >= mtd->size)
return -1;
- block_start = offset & ~(loff_t)(nand->erasesize - 1);
- block_off = offset & (nand->erasesize - 1);
- block_len = nand->erasesize - block_off;
+ block_start = offset & ~(loff_t)(mtd->erasesize - 1);
+ block_off = offset & (mtd->erasesize - 1);
+ block_len = mtd->erasesize - block_off;
- if (!nand_block_isbad(nand, block_start))
+ if (!nand_block_isbad(mtd, block_start))
len_excl_bad += block_len;
else
ret = 1;
@@ -441,7 +440,7 @@ static int check_skip_len(nand_info_t *nand, loff_t offset, size_t length,
}
#ifdef CONFIG_CMD_NAND_TRIMFFS
-static size_t drop_ffs(const nand_info_t *nand, const u_char *buf,
+static size_t drop_ffs(const struct mtd_info *mtd, const u_char *buf,
const size_t *len)
{
size_t l = *len;
@@ -453,8 +452,8 @@ static size_t drop_ffs(const nand_info_t *nand, const u_char *buf,
/* The resulting length must be aligned to the minimum flash I/O size */
l = i + 1;
- l = (l + nand->writesize - 1) / nand->writesize;
- l *= nand->writesize;
+ l = (l + mtd->writesize - 1) / mtd->writesize;
+ l *= mtd->writesize;
/*
* since the input length may be unaligned, prevent access past the end
@@ -471,16 +470,17 @@ static size_t drop_ffs(const nand_info_t *nand, const u_char *buf,
* Reads page of NAND and verifies the contents and OOB against the
* values in ops.
*
- * @param nand NAND device
+ * @param mtd nand mtd instance
* @param ops MTD operations, including data to verify
* @param ofs offset in flash
* @return 0 in case of success
*/
-int nand_verify_page_oob(nand_info_t *nand, struct mtd_oob_ops *ops, loff_t ofs)
+int nand_verify_page_oob(struct mtd_info *mtd, struct mtd_oob_ops *ops,
+ loff_t ofs)
{
int rval;
struct mtd_oob_ops vops;
- size_t verlen = nand->writesize + nand->oobsize;
+ size_t verlen = mtd->writesize + mtd->oobsize;
memcpy(&vops, ops, sizeof(vops));
@@ -489,9 +489,9 @@ int nand_verify_page_oob(nand_info_t *nand, struct mtd_oob_ops *ops, loff_t ofs)
if (!vops.datbuf)
return -ENOMEM;
- vops.oobbuf = vops.datbuf + nand->writesize;
+ vops.oobbuf = vops.datbuf + mtd->writesize;
- rval = mtd_read_oob(nand, ofs, &vops);
+ rval = mtd_read_oob(mtd, ofs, &vops);
if (!rval)
rval = memcmp(ops->datbuf, vops.datbuf, vops.len);
if (!rval)
@@ -510,17 +510,17 @@ int nand_verify_page_oob(nand_info_t *nand, struct mtd_oob_ops *ops, loff_t ofs)
* the contents of a buffer. The offset into the NAND must be
* page-aligned, and the function doesn't handle skipping bad blocks.
*
- * @param nand NAND device
+ * @param mtd nand mtd instance
* @param ofs offset in flash
* @param len buffer length
* @param buf buffer to read from
* @return 0 in case of success
*/
-int nand_verify(nand_info_t *nand, loff_t ofs, size_t len, u_char *buf)
+int nand_verify(struct mtd_info *mtd, loff_t ofs, size_t len, u_char *buf)
{
int rval = 0;
size_t verofs;
- size_t verlen = nand->writesize;
+ size_t verlen = mtd->writesize;
uint8_t *verbuf = memalign(ARCH_DMA_MINALIGN, verlen);
if (!verbuf)
@@ -529,8 +529,8 @@ int nand_verify(nand_info_t *nand, loff_t ofs, size_t len, u_char *buf)
/* Read the NAND back in page-size groups to limit malloc size */
for (verofs = ofs; verofs < ofs + len;
verofs += verlen, buf += verlen) {
- verlen = min(nand->writesize, (uint32_t)(ofs + len - verofs));
- rval = nand_read(nand, verofs, &verlen, verbuf);
+ verlen = min(mtd->writesize, (uint32_t)(ofs + len - verofs));
+ rval = nand_read(mtd, verofs, &verlen, verbuf);
if (!rval || (rval == -EUCLEAN))
rval = memcmp(buf, verbuf, verlen);
@@ -558,7 +558,7 @@ int nand_verify(nand_info_t *nand, loff_t ofs, size_t len, u_char *buf)
* beyond the limit we are passed, length is set to 0 and actual is set
* to the required length.
*
- * @param nand NAND device
+ * @param mtd nand mtd instance
* @param offset offset in flash
* @param length buffer length
* @param actual set to size required to write length worth of
@@ -569,8 +569,8 @@ int nand_verify(nand_info_t *nand, loff_t ofs, size_t len, u_char *buf)
* @param flags flags modifying the behaviour of the write to NAND
* @return 0 in case of success
*/
-int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
- size_t *actual, loff_t lim, u_char *buffer, int flags)
+int nand_write_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
+ size_t *actual, loff_t lim, u_char *buffer, int flags)
{
int rval = 0, blocksize;
size_t left_to_write = *length;
@@ -581,7 +581,7 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
if (actual)
*actual = 0;
- blocksize = nand->erasesize;
+ blocksize = mtd->erasesize;
/*
* nand_write() handles unaligned, partial page writes.
@@ -594,13 +594,13 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
* you should only start a block skipping access at a
* partition boundary). So don't try to handle that.
*/
- if ((offset & (nand->writesize - 1)) != 0) {
+ if ((offset & (mtd->writesize - 1)) != 0) {
printf("Attempt to write non page-aligned data\n");
*length = 0;
return -EINVAL;
}
- need_skip = check_skip_len(nand, offset, *length, &used_for_write);
+ need_skip = check_skip_len(mtd, offset, *length, &used_for_write);
if (actual)
*actual = used_for_write;
@@ -618,10 +618,10 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
}
if (!need_skip && !(flags & WITH_DROP_FFS)) {
- rval = nand_write(nand, offset, length, buffer);
+ rval = nand_write(mtd, offset, length, buffer);
if ((flags & WITH_WR_VERIFY) && !rval)
- rval = nand_verify(nand, offset, *length, buffer);
+ rval = nand_verify(mtd, offset, *length, buffer);
if (rval == 0)
return 0;
@@ -633,15 +633,15 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
}
while (left_to_write > 0) {
- size_t block_offset = offset & (nand->erasesize - 1);
+ size_t block_offset = offset & (mtd->erasesize - 1);
size_t write_size, truncated_write_size;
WATCHDOG_RESET();
- if (nand_block_isbad(nand, offset & ~(nand->erasesize - 1))) {
+ if (nand_block_isbad(mtd, offset & ~(mtd->erasesize - 1))) {
printf("Skip bad block 0x%08llx\n",
- offset & ~(nand->erasesize - 1));
- offset += nand->erasesize - block_offset;
+ offset & ~(mtd->erasesize - 1));
+ offset += mtd->erasesize - block_offset;
continue;
}
@@ -653,15 +653,15 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
truncated_write_size = write_size;
#ifdef CONFIG_CMD_NAND_TRIMFFS
if (flags & WITH_DROP_FFS)
- truncated_write_size = drop_ffs(nand, p_buffer,
+ truncated_write_size = drop_ffs(mtd, p_buffer,
&write_size);
#endif
- rval = nand_write(nand, offset, &truncated_write_size,
+ rval = nand_write(mtd, offset, &truncated_write_size,
p_buffer);
if ((flags & WITH_WR_VERIFY) && !rval)
- rval = nand_verify(nand, offset,
+ rval = nand_verify(mtd, offset,
truncated_write_size, p_buffer);
offset += write_size;
@@ -693,7 +693,7 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
* the limit we are passed, length is set to 0 and actual is set to the
* required length.
*
- * @param nand NAND device
+ * @param mtd nand mtd instance
* @param offset offset in flash
* @param length buffer length, on return holds number of read bytes
* @param actual set to size required to read length worth of buffer or 0
@@ -703,8 +703,8 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
* @param buffer buffer to write to
* @return 0 in case of success
*/
-int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
- size_t *actual, loff_t lim, u_char *buffer)
+int nand_read_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
+ size_t *actual, loff_t lim, u_char *buffer)
{
int rval;
size_t left_to_read = *length;
@@ -712,7 +712,7 @@ int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
u_char *p_buffer = buffer;
int need_skip;
- if ((offset & (nand->writesize - 1)) != 0) {
+ if ((offset & (mtd->writesize - 1)) != 0) {
printf("Attempt to read non page-aligned data\n");
*length = 0;
if (actual)
@@ -720,7 +720,7 @@ int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
return -EINVAL;
}
- need_skip = check_skip_len(nand, offset, *length, &used_for_read);
+ need_skip = check_skip_len(mtd, offset, *length, &used_for_read);
if (actual)
*actual = used_for_read;
@@ -738,7 +738,7 @@ int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
}
if (!need_skip) {
- rval = nand_read(nand, offset, length, buffer);
+ rval = nand_read(mtd, offset, length, buffer);
if (!rval || rval == -EUCLEAN)
return 0;
@@ -749,24 +749,24 @@ int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
}
while (left_to_read > 0) {
- size_t block_offset = offset & (nand->erasesize - 1);
+ size_t block_offset = offset & (mtd->erasesize - 1);
size_t read_length;
WATCHDOG_RESET();
- if (nand_block_isbad(nand, offset & ~(nand->erasesize - 1))) {
+ if (nand_block_isbad(mtd, offset & ~(mtd->erasesize - 1))) {
printf("Skipping bad block 0x%08llx\n",
- offset & ~(nand->erasesize - 1));
- offset += nand->erasesize - block_offset;
+ offset & ~(mtd->erasesize - 1));
+ offset += mtd->erasesize - block_offset;
continue;
}
- if (left_to_read < (nand->erasesize - block_offset))
+ if (left_to_read < (mtd->erasesize - block_offset))
read_length = left_to_read;
else
- read_length = nand->erasesize - block_offset;
+ read_length = mtd->erasesize - block_offset;
- rval = nand_read(nand, offset, &read_length, p_buffer);
+ rval = nand_read(mtd, offset, &read_length, p_buffer);
if (rval && rval != -EUCLEAN) {
printf("NAND read from offset %llx failed %d\n",
offset, rval);
@@ -812,57 +812,57 @@ static int check_pattern(const u_char *buf, u_char patt, int size)
* This is useful to determine if a block that caused a write error is still
* good or should be marked as bad.
*
- * @param nand NAND device
+ * @param mtd nand mtd instance
* @param offset offset in flash
* @return 0 if the block is still good
*/
-int nand_torture(nand_info_t *nand, loff_t offset)
+int nand_torture(struct mtd_info *mtd, loff_t offset)
{
u_char patterns[] = {0xa5, 0x5a, 0x00};
struct erase_info instr = {
.mtd = nand,
.addr = offset,
- .len = nand->erasesize,
+ .len = mtd->erasesize,
};
size_t retlen;
int err, ret = -1, i, patt_count;
u_char *buf;
- if ((offset & (nand->erasesize - 1)) != 0) {
+ if ((offset & (mtd->erasesize - 1)) != 0) {
puts("Attempt to torture a block at a non block-aligned offset\n");
return -EINVAL;
}
- if (offset + nand->erasesize > nand->size) {
+ if (offset + mtd->erasesize > mtd->size) {
puts("Attempt to torture a block outside the flash area\n");
return -EINVAL;
}
patt_count = ARRAY_SIZE(patterns);
- buf = malloc_cache_aligned(nand->erasesize);
+ buf = malloc_cache_aligned(mtd->erasesize);
if (buf == NULL) {
puts("Out of memory for erase block buffer\n");
return -ENOMEM;
}
for (i = 0; i < patt_count; i++) {
- err = nand->erase(nand, &instr);
+ err = mtd->erase(mtd, &instr);
if (err) {
printf("%s: erase() failed for block at 0x%llx: %d\n",
- nand->name, instr.addr, err);
+ mtd->name, instr.addr, err);
goto out;
}
/* Make sure the block contains only 0xff bytes */
- err = nand->read(nand, offset, nand->erasesize, &retlen, buf);
- if ((err && err != -EUCLEAN) || retlen != nand->erasesize) {
+ err = mtd->read(mtd, offset, mtd->erasesize, &retlen, buf);
+ if ((err && err != -EUCLEAN) || retlen != mtd->erasesize) {
printf("%s: read() failed for block at 0x%llx: %d\n",
- nand->name, instr.addr, err);
+ mtd->name, instr.addr, err);
goto out;
}
- err = check_pattern(buf, 0xff, nand->erasesize);
+ err = check_pattern(buf, 0xff, mtd->erasesize);
if (!err) {
printf("Erased block at 0x%llx, but a non-0xff byte was found\n",
offset);
@@ -871,22 +871,22 @@ int nand_torture(nand_info_t *nand, loff_t offset)
}
/* Write a pattern and check it */
- memset(buf, patterns[i], nand->erasesize);
- err = nand->write(nand, offset, nand->erasesize, &retlen, buf);
- if (err || retlen != nand->erasesize) {
+ memset(buf, patterns[i], mtd->erasesize);
+ err = mtd->write(mtd, offset, mtd->erasesize, &retlen, buf);
+ if (err || retlen != mtd->erasesize) {
printf("%s: write() failed for block at 0x%llx: %d\n",
- nand->name, instr.addr, err);
+ mtd->name, instr.addr, err);
goto out;
}
- err = nand->read(nand, offset, nand->erasesize, &retlen, buf);
- if ((err && err != -EUCLEAN) || retlen != nand->erasesize) {
+ err = mtd->read(mtd, offset, mtd->erasesize, &retlen, buf);
+ if ((err && err != -EUCLEAN) || retlen != mtd->erasesize) {
printf("%s: read() failed for block at 0x%llx: %d\n",
- nand->name, instr.addr, err);
+ mtd->name, instr.addr, err);
goto out;
}
- err = check_pattern(buf, patterns[i], nand->erasesize);
+ err = check_pattern(buf, patterns[i], mtd->erasesize);
if (!err) {
printf("Pattern 0x%.2x checking failed for block at "
"0x%llx\n", patterns[i], offset);
generated by cgit v1.1 at 2024-12-27 05:10:40 +0000