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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>
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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>
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Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Dan Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
packed_usage 28706 28623 -83
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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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>
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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>
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Elsewhere: use common error message. -30 bytes net size change
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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