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Several ioctls are replaced with libmtd calls which should give us 64-bit
support for large devices. libmtd mostly provides drop-in replacements
for the functionality we need. However, when we require erasure of a
badly-written block, mtd_erase() only erases a single block, whereas
MEMERASE could erase a larger region. In nandwrite, we may have a "virtual
blocksize" of more than one (when blockalign > 1). Thus, I added a loop
for this case.
The mtd_oob_buf struct is no longer needed, nor is "erase_info_t".
Error messages for the new libmtd calls reflect the style found in
flash_erase.
Tested with nandsim and with NAND chips up to 4GB in size (I don't have
a device that truly requires 64-bit addressing yet).
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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For large block- and page-sizes, the multiplication of ebsize_aligned
and pagelen can overflow a 32-bit integer. This overflow can be
prevented by a simple change in order of operations (i.e., do division
first).
Since ebsize_aligned is always a multiple of mtd.min_io_size, this
produces no change in results.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Commit 07005d915d6a79dbdee14b0c4360df5058c3a98b made changes to the
buffer allocation in nandwrite and did not handle all affected code
areas properly. In particular, we were assigning:
oob.ptr = noecc ? oobreadbuf : oobbuf;
However, since oobreadbuf and oobbuf are declared dynamically, they
are NULL at this point. If they aren't properly assigned later, we
unwittingly are passing a NULL pointer as oob buffer.
This assignment line is best moved after the buffer allocations and
pointer assignment.
Effects of this problem can be seen when writing oob data with the "-o"
flag and without the "-n" flag:
$ ./nandwrite -o /dev/mtd0 img.bin
Writing data to block 0 at offset 0x0
ioctl(MEMWRITEOOB): Bad address
Data was only partially written due to error
: Bad address
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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To support large NAND devices, we need 64-bit data types for
write offsets. This patch makes data type changes along with
their corresponding printf() formats and the input conversion
(i.e., use "strtoll()" instead of "strol()").
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Begin utilizing libmtd for MTD operations: use mtd_get_dev_info() to return
a more detailed set of information about our MTD. Most importantly, libmtd
will yield a 64-bit "size" parameter. This is necessary to properly detect
devices larer than 4GB.
printf() arguments needed reformatted for the new mtd_dev_info data types.
In addition, the printf() was restructured to keep lines shorter.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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The text of a printf() states that we're printing OOB area, but the
corresponding argument passes writesize. That probably wasn't the intent.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Due to the presence of the "--block-align" flag, nandwrite uses a
blocksize throughout that, depeding on the execution parameters, may
not be the actual erasesize of the NAND flash. In order to clarify
this situation for the untrained viewer of nandwrite's code, we should
not change the value of "meminfo.erasesize" itself; rather, we can
utilize a separate, calculated "ebsize_aligned". Then, when a user
actually wants to refer to the physical erasesize, it's straightforward.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Comment on "blockalign" default value is incorrect; it only defaults
to a 1x multiplier of the actual block size. Perhaps this is a relic
of early NAND where all block sizes were 16KB?
Reformatted a multi-line comment.
Changed separete "if" statements to a combined "if-else-if" since they
were logically combinable. Should have no effect on results with minor
effect on efficiency.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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There were some signed/unsigned integer comparisons. Their types were
changed for safety. Also, "strtol" was improperly used for unsigned
data types.
Nanddump's pretty print options needed a slight reformat to prepare for
printing offsets that are more than 32 bits (8 hex characters) wide.
This prevents overlap of output and ensures that at least one space is
printed between hex and ascii printouts. Perhaps this could use some
better alignment in the future.
Other fixes:
* Corrected several simple spacing issues
* Changed indentation of some global variable declarations in
order to prepare for the next patch, which makes those
declarations longer
* Used macro for PRETTY_ROW_SIZE instead of constant 16
* Reformatted, edited a multi-line comment
* Removed some unnecessary casts
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Dynamic allocation of the oob buffer provides the necessary
support for removing the oob size check. Now, new unknown OOB
sizes can be handled correctly (for example, 8KB page + 448B
OOB).
Included common.h for the use of xmalloc.
Memory freeing should occur on "restoreoob" as well as on
"closeall."
[Conflicts resolved by Artem]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Make sure all the utils define PROGRAM_NAME and do so at the start of
the file so that sub-headers may assume it exists.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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We're already in 'if (autoplace) { }' block at ths moment.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Sometimes dumping bad blocks is useful, like when the block isn't actually
bad but the OOB layout isn't what the kernel is expecting or is otherwise
screwed up. The --skipbad option allows just that.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Add support for oobsize 64 and writesize 4096 in nanddump & nandwrite.
Artem: some more info from further e-mail exchange:
> Are there flashes with the 4096 page / 64 spare combination? Could you
> refer to one? May be any URL? I thought 4096 comes with 128.
Much to my regret I can't provide a URL because is not public. IGEP v2
board has a Onenand with two dice of 2048/64 spare combination but mtd
views 4096/64. The minimal write page is 4K (2K from first dice and 2K
from second dice).
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Only page-aligned address is permitted in NAND subsystem.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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The tool mkyaffs2image doesn't know the oob layout of a NAND flash, so it
puts the yaffs2 tags at the offset 0 of oob area, as a result, the image
generated by mkyaffs2image is different with the image dumped by nanddump.
Now adding a parameter "-r" for nandwrite to differentiate these images.
Write a image generated by mkyaffs2image:
$> nandwrite -a -o /dev/mtd3 yaffs2.bin
Write a image dumped by nanddump:
$> nandwrite -a -r /dev/mtd3 image.bin
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Signed-off-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Signed-off-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Nandwrite tries to use lseek() when failing to write on a page. lseek()
will fail when used on the standard input so nandwrite fails. This code
replaces lseek with a buffer.
When the data is read, it is put in a buffer (filebuf). This buffer is
reset at each block boundary. So a "seek" just means reading from the
beginning of the buffer. writebuf and oobreadbuf are now just pointers
to locations in filebuf.
Signed-off-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Use the same code structure when reading the OOB than when reading the
regular data.
Signed-off-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Use same code path for reading data (not the OOB) from either the
standard input or a regular file.
Signed-off-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Artem Bityutskiy wrote:
> Yes, write and erase failure mean that the erasblock is bad. But I think
> marking a block as bad straight away is just dangerous. Who knows may be
> this is a small glitch in a bus, or a software bug, or some-one
> corrupted driver's memory, or whatever. This is why UBI is doing
> eraseblock torturing before marking it as bad. And it is very careful
> about error codes - only EIO code is considered as a reason to mark an
> eraseblock as bad.
Fixed broken behavior in case of write failure. More specifically:
- Only try to mark a block bad if the errors are EIO. Other errors
will abort the tool.
- Also abort the tool if the marking fails instead of ignoring it.
Signed-off-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Fix nandwrite to return EXIT_FAILURE in case of error when using the
standard input instead of a file for input.
Signed-off-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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If the file contains only a few bytes in the last page and the
--oob option is selected, the loop may exit early
(readlen < meminfo.oobsize).
Most of the time it will still work though because the code
tries to read the whole OOB in one chunk.
Signed-off-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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The "read" syscall does not necessarily return all the requested
data, in which case the caller has to try again and read more.
Take this into account when reading input data.
This patch is an improved vestion of the original patch sent by
Hai Zaar.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Tested-by: Hai Zaar <haizaar@codefidence.com>
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Added suppport for reading in band data from standard input based on a
patch originally generated by Richard Titmuss <titmuss@slimdevices.com>
at <http://lists.slimdevices.com/pipermail/jive-checkins/2008-May/001918.html>.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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Realign help usage output to make it more explict when a description
needs to be wrapped.
Use sentence case for the help usage output option short descriptions.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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Added include directive for stdbool.h and leveraged where appropriate
to improve code readability by making variable intent and usage more
explicit.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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Pass the MTD device node and input file name as arguments to perror
rather than more ambigous, static messages on open failures.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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Replace main exit and return status codes with equivalent mnemonics.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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Static-qualified all globals except 'main' because they have no use
beyond file scope.
Constant-qualified MTD device and input positional parameter globals.
Constant-qualified argv array.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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Add support for 4K pages in nanddump & nandwrite.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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The $Id:$ tags are left over from the old CVS repository. Several files have
since been changed, and they generally have little value in a git repo so they
should be removed.
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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Older kernel do not implement the MTDFILEMODE ioctl. In this case
nandwrite and nanddump should have used MEMGETOOBSEL in combination
with MEMSETOOBSEL. Unfortunately the return value of the unsucessfull
ioctl is not -ENOTTY, but -1 and errno contains ENOTTY. This change
fixes this issue. I have not tested all cornercases. Would be
good if someone could do more careful testing than I did, or maybe
reviewing is sufficient in this case.
Signed-off-by: Frank Haverkamp <haver@vnet.ibm.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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The NAND rework exposes more information to userspace and
has a different mechanism to read raw FLASH contents without
ECC. Update nanddump and nandwrite. Use the new ECC statistics
ioctl to inform the user about corrected and uncorrectable
bitflips.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Follow the kernel in the rename.
Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
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Modify nandwrite to accept hex argument for "-s" argument; also
make an error message more accurate.
Signed-off-by: Steven Finney <sfinney@healthhero.com>
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