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| author | Benoît Thébaudeau <benoit.thebaudeau@advansee.com> | 2012-11-16 20:20:54 +0100 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2012-11-26 15:41:29 -0600 |
| commit | 3287f6d3858faee768a7c47515bd21914ad591a2 (patch) | |
| tree | 389079aae420c3b0b05a64b7c7dc2fb557334744 /common | |
| parent | 8156f732ee49fc4d91aef1ce09fb6679b3a23c0c (diff) | |
| download | u-boot-imx-3287f6d3858faee768a7c47515bd21914ad591a2.zip u-boot-imx-3287f6d3858faee768a7c47515bd21914ad591a2.tar.gz u-boot-imx-3287f6d3858faee768a7c47515bd21914ad591a2.tar.bz2 | |
nand: Add torture feature
This patch adds a NAND Flash torture feature, which is useful as a block stress
test to determine if a block is still good and reliable (or should be marked as
bad), e.g. after a write error.
This code is ported from mtd-utils' lib/libmtd.c.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
[scottwood@freescale.com: removed unnec. ifdef and unwrapped error strings]
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'common')
| -rw-r--r-- | common/cmd_nand.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/common/cmd_nand.c b/common/cmd_nand.c index 4b16069..1568594 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -700,6 +700,25 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return ret == 0 ? 0 : 1; } +#ifdef CONFIG_CMD_NAND_TORTURE + if (strcmp(cmd, "torture") == 0) { + if (argc < 3) + goto usage; + + if (!str2off(argv[2], &off)) { + puts("Offset is not a valid number\n"); + return 1; + } + + printf("\nNAND torture: device %d offset 0x%llx size 0x%x\n", + dev, off, nand->erasesize); + ret = nand_torture(nand, off); + printf(" %s\n", ret ? "Failed" : "Passed"); + + return ret == 0 ? 0 : 1; + } +#endif + if (strcmp(cmd, "markbad") == 0) { argc -= 2; argv += 2; @@ -810,6 +829,9 @@ static char nand_help_text[] = "nand erase.chip [clean] - erase entire chip'\n" "nand bad - show bad blocks\n" "nand dump[.oob] off - dump page\n" +#ifdef CONFIG_CMD_NAND_TORTURE + "nand torture off - torture block at offset\n" +#endif "nand scrub [-y] off size | scrub.part partition | scrub.chip\n" " really clean NAND erasing bad blocks (UNSAFE)\n" "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n" |