Richard Genoud
f17fbe1d36
nanddump: add options --bb=skipbad and padbad
...
In mtd-utils, the bad block options changed in favor of
--bb=[skipbad|padbad|dumpbad] and omitbad has been removed.
This patch add the --bb=skipbad and padbad methods to busybox' nanddump.
padbad is the current default behaviour.
The difference between skipbad and omitbad is this one:
On a 16K block NAND, if the 1st block of mtd0 is bad, we'll have:
nanddump -b -l 16384 /dev/mtd0 | wc -c
0
nanddump --bb=skipbad -l 16384 /dev/mtd0 | wc -c
16384 <- data from 1st good block
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-25 17:37:01 +02:00
Richard Genoud
cbf3bfa57a
nanddump: correct rounding to next page (lead to infinite loop)
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The rounding to next page formula was wrong:
ex: (len | ~(meminfo->writesize - 1)) + 1;
len=128K
writesize=4K
(len | ~(meminfo->writesize - 1)) + 1 => 4 294 963 201 ?!
correct rounding formula:
((len - 1) | (meminfo->writesize - 1)) + 1 => 128K
len = 130K
((len - 1) | (meminfo->writesize - 1)) + 1 => 132K
modprobe nandsim parts="20,20" badblocks="22,23"
without patch:
nanddump /dev/mtd1 | wc -c
[...] infinite loop
with the patch:
nanddump /dev/mtd1 | wc -c
327680
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-25 16:37:37 +02:00
Alexander Shiyan
0d61dcd641
nanddump: fix build if nandwrite isn't enabled
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Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-15 00:27:41 +01:00
Baruch Siach
3aeb870b22
nanddump: invert the meaning of the -o parameter to match upstream
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-10-15 14:32:23 +02:00
Baruch Siach
98f6b2d399
nanddump: skip bad blocks when instructed to do so
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-10-15 14:25:26 +02:00
Baruch Siach
da0200a1e5
nanddump: use the right operator of logic AND
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-10-15 14:21:45 +02:00
Matt Reimer
6979325592
nanddump: make dumping read-only partitions work
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Make dumping read-only partitions work by opening the device
O_RDONLY; otherwise the open() will fail with -EPERM.
Signed-off-by: Matt Reimer <mreimer@sdgsystems.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-06-13 02:39:22 +02:00
Denys Vlasenko
c97578de6b
conspy,nandwrite,nanddump: enable in defconfig
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-08-13 09:00:29 +02:00
Dan Fandrich
b5de0c12d6
typo fixes
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Signed-off-by: Dan Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-07-08 05:47:49 +02:00
Denys Vlasenko
66426760be
*: remove "Options:" string from help texts
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function old new delta
packed_usage 28706 28623 -83
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-06-05 03:58:28 +02:00
Denys Vlasenko
e3b1a1fd28
Replace "depends on PLATFORM_LINUX" with "select PLATFORM_LINUX"
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-26 22:24:08 +01:00
Denys Vlasenko
b9f2d9f7d9
mass removal of underscores from _BB_DIR_foo and _BB_SUID_foo
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-01-18 13:58:01 +01:00
Denys Vlasenko
e4dcba1c10
*: whitespace fixes
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-28 18:57:19 +02:00
Baruch Siach
d982da79de
nanddump: make oobbuf allocation dynamic
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In accordance with upstream mtd-utils commit 96a5eeaf (mtd-utils: nanddump:
Dynamic buffer, increase pagesize/oobsize).
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-10-18 15:34:58 +02:00
Baruch Siach
36af2f7977
nanddump: new applet
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function old new delta
nandwrite_main 418 936 +518
dump_bad - 119 +119
packed_usage 27752 27810 +58
next_good_eraseblock 84 106 +22
applet_names 2366 2375 +9
applet_main 1380 1384 +4
applet_nameofs 690 692 +2
bbconfig_config_bz2 4932 4922 -10
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 6/1 up/down: 732/-10) Total: 722 bytes
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-18 02:36:34 +02:00
Baruch Siach
7715b48c36
nandwrite: always check the first erase block
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Current code does not check the first erase block when mtdoffset is not erase
block aligned. Fix this.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-29 13:30:22 +02:00
Denys Vlasenko
b32a543663
nandwrite: complain on malformed -s NUM
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Elsewhere: use common error message. -30 bytes net size change
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-29 13:29:02 +02:00
Baruch Siach
a78227dc73
nandwrite: allow hex values in the -s parameter
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-29 13:15:57 +02:00
Baruch Siach
6f32ea4039
nandwrite: new applet
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function old new delta
nandwrite_main - 382 +382
packed_usage 27119 27135 +16
applet_names 2275 2285 +10
applet_main 1340 1344 +4
applet_nameofs 670 672 +2
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 4/0 up/down: 414/0) Total: 414 bytes
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-08-25 16:36:17 +02:00