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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 /include/mtd | |
| 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 'include/mtd')
| -rw-r--r-- | include/mtd/mtd-peb.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/mtd/mtd-peb.h b/include/mtd/mtd-peb.h index 50ac9a5cca..e4fd01df90 100644 --- a/include/mtd/mtd-peb.h +++ b/include/mtd/mtd-peb.h @@ -17,5 +17,8 @@ int mtd_peb_check_all_ff(struct mtd_info *mtd, int pnum, int offset, int len, int mtd_peb_verify(struct mtd_info *mtd, const void *buf, int pnum, int offset, int len); int mtd_num_pebs(struct mtd_info *mtd); +int mtd_peb_create_bitflips(struct mtd_info *mtd, int pnum, int offset, + int len, int num_bitflips, int random, + int info); #endif /* __LINUX_MTD_MTDPEB_H */ |