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2010-11-13mtd-utils: nandwrite: Clarify usage of aligned "erasesize"Brian Norris
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>
2010-11-13mtd-utils: nandwrite: Comment, style fixupsBrian Norris
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>
2010-10-25mtd-utils: nanddump/nandwrite: style, signed-ness, printing fixupsBrian Norris
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>
2010-10-17mtd-utils: nanddump/nandwrite: Style fixupsBrian Norris
Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2010-10-17mtd-utils: nandwrite: Large page+oob supportBrian Norris
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>
2010-09-27mtd-utils: standardize PROGRAM_NAMEMike Frysinger
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>
2010-09-25nandwrite: Remove redundant 'autoplace' checkShinya Kuribayashi
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>
2010-09-24nandwrite: add --skipbad to write bad blocksMike Frysinger
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>
2010-06-12mtd-utils: support 4096+64 page sizesEnric Balletbo i Serra
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>
2010-05-22nandwrite: check if the start address is page-alignedStanley.Miao
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>
2010-05-22nandwrite: fix the bug of writing a yaffs2 image to NANDStanley.Miao
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>
2009-08-12nandwrite: allow writing the OOB when using the standard inputJehan Bing
Signed-off-by: Jehan Bing <jehan@orb.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-08-11nandwrite: fix incorrect use of errno.Jehan Bing
Signed-off-by: Jehan Bing <jehan@orb.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-08-11nandwrite: unified reading from standard input and from file - part 3Jehan Bing
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>
2009-08-11nandwrite: unified reading from standard input and from file - part2Jehan Bing
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>
2009-08-11nandwrite: unified reading from standard input and from file - part 1Jehan Bing
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>
2009-06-09nandwrite: fix error handlingJehan Bing
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>
2009-06-09nandwrite: return error if failure when reading from standard inputJehan Bing
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>
2009-06-08nandwrite: amend loop conditionJehan Bing
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>
2008-12-26nandwrite: correct data readingArtem Bityutskiy
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>
2008-09-08nandwrite: Add Support for Reading from Standard InputGrant Erickson
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>
2008-09-08nandwrite: Clean-up Usage OutputGrant Erickson
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>
2008-09-08nandwrite: Use Boolean Mnemonics from stdbool.hGrant Erickson
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>
2008-09-08nandwrite: Pass Real Names as Arguments to perrorGrant Erickson
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>
2008-09-08nandwrite: Utilize Standard Exit MnemonicsGrant Erickson
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>
2008-09-08nandwrite: Qualifier Clean-upGrant Erickson
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>
2008-08-21mtd-utils: add support for 4k pages.Thomas Gleixner
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>
2007-08-06Copy with write errors in nandwrite, add 'markbad' option too.David Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-03Remove $Id:$ tagsJosh Boyer
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>
2007-03-15MTD-Utils: fix handling of ioctl return value in nand-utilsFrank Haverkamp
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>
2006-10-09Fixup whitespaceJosh Boyer
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2006-05-30Update mtd-abi.h and use new NAND ECC functionalityThomas Gleixner
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>
2006-05-23s/oobblock/writesize/gJoern Engel
Follow the kernel in the rename. Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
2006-05-14MTD Utils. (Resubmit as attachment)Steve Finney
Modify nandwrite to accept hex argument for "-s" argument; also make an error message more accurate. Signed-off-by: Steven Finney <sfinney@healthhero.com>
2006-04-11Initial commitDavid Woodhouse
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