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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2016-03-02 10:16:50 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-04-06 10:17:53 +0200 |
| commit | 1e6955fdb815906bdd2ecbf2c50e5059852f2400 (patch) | |
| tree | 365230e849ab4ccc01bb53e754a61f88137f356f /commands/Kconfig | |
| parent | eea6d75d1bfa91ff5da7992ecbc1ff828542c342 (diff) | |
| download | barebox-1e6955fdb815906bdd2ecbf2c50e5059852f2400.tar.gz barebox-1e6955fdb815906bdd2ecbf2c50e5059852f2400.tar.xz | |
commands: Create nand_bitflip command
This adds a command to flip bits in a Nand flash. This is useful for
testing purposes to check if flipped bits are corrected and if the
driver returns the correct number of bitflips.
The command writes a configurable number of bitflips to a single Nand
page. If the -r option is not given the results are reproducible, so
calling the same command twice will revert the bitflips.
The command uses the raw read/write Nand operations which are probably
less tested than the regular read/write operations, so the command may
produce surprising results.
As of writing the command has been tested with the GPMI Nand driver and
the imx-nand driver with fixes posted.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'commands/Kconfig')
| -rw-r--r-- | commands/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/commands/Kconfig b/commands/Kconfig index 172439154d..875c5f4f01 100644 --- a/commands/Kconfig +++ b/commands/Kconfig @@ -1908,6 +1908,23 @@ config CMD_NANDTEST -o OFFS start offset on flash -l LEN length of flash to test +config CMD_NAND_BITFLIP + tristate + depends on NAND + prompt "nand_bitflip" + help + nand_bitflip - Create bitflips on Nand pages. This command is useful for testing + purposes. + + Usage: nand_bitflip NANDDEV + + This command creates bitflips on Nand pages. + Options: + -b <block> block to work on + -o <offset> offset in Nand + -r flip random bits + -n <numbitflips> Specify maximum number of bitflips to generate + config CMD_POWEROFF tristate depends on HAS_POWEROFF |