| Commit message (Collapse) | Author | Age | Files | Lines |
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With the new --ecc option, pflash can add/remove ECC when
reading/writing flash partitions protected by ECC.
This is *not* flawless with current PNORs out in the wild though, as
they do not typically fill the whole partition with valid ECC data, so
you have to know how big the valid ECC'd data is and specify the size
manually. Note that for some partitions this is pratically impossible
without knowing the details of the content of the partition.
A future patch is likely to introduce an option to "stop reading data
when ECC starts failing and assume everything is okay rather than error
out" to support reading the "valid" data from existing PNOR images.
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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Add a --skip=N option to pflash to skip N number of bytes when reading.
This would allow users to print the VERSION partition without the STB
header by specifying the --skip=4096 argument, and it's a more generic
solution rather than making pflash depend on secure/trusted boot code.
Signed-off-by: Adriana Kobylak <anoo@linux.ibm.com>
Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
[stewart: fix up pflash test]
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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This also updated the pflash tests which use ffspart to generate pnors
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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It seems we've developed a character respresentation for ffs partition
flags. Currently only pflash really prints them so it hasn't been a
problem but now ffspart wants to read them in from user input.
It is important that what libffs reads and what pflash prints remain
consistent, we should move the code into libffs to avoid problems.
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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Add the misc flag clear_on_ecc_error to libflash/pflash. This was
the only missing flag. The generator of the virtual pnor image
relies on libflash/pflash to provide the partition information,
so all flags are needed to build an accurate virtual pnor partition
table.
Signed-off-by: Adriana Kobylak <anoo@linux.vnet.ibm.com>
Reviewed-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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Fixes: b786e7ba1d34c5a4d8baa6304f4d930539cefac8
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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The volatile flag was added to the pnor image to
indicate partitions that are cleared during a host
power off. Display this flag from the pflash command.
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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New code that is very much pflash functionality was added in commit
f2c87a3d2f6 "pflash option to retrieve PNOR partition flags".
Unfortunately at the time there wasn't an easy way to test pflash.
The previous patch adds pflash infrastructure and plumbs it into
`make check` nicely. This commit converts the tests originally added to
libflash tests.
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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