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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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