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Bit flip detection for written and erased pages tend to have different
implementations. Where written pages are detected and corrected using
ECC, erased pages are typically detected by ensuring that the number of
zeros is less than a specified threshold.
As such, it's necessary to have the 'nandbiterrs' test support the
testing of written and erased pages. Bit flips in erased pages are
emulated by rewriting the page in raw mode, to prevent the use of ECC.
Signed-off-by: Harpreet Eli Sangha <harpreet@nestlabs.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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After a page read, the old failure statistics are compared against the
new failure statistics before the new values are actually read.
Signed-off-by: Harpreet "Eli" Sangha <harpreet@nestlabs.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Basically a user space port of the mtd speed test kernel module.
In addition to the module parameters, the utility can resture
the block contents after test and allows setting the maxium writes
for the test.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
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