diff options
| author | david regan <dregan@broadcom.com> | 2025-08-14 11:04:58 -0700 |
|---|---|---|
| committer | Michael Trimarchi <michael@amarulasolutions.com> | 2025-08-23 16:37:20 +0200 |
| commit | bb5d3a7a1c83cca588b5795630bf8fb3db950e5e (patch) | |
| tree | 21649e568d03fe5e5f207994744246a09f24b17f /cmd/nand.c | |
| parent | b5ce63e1350f94b51986765e8bd56f45d16af650 (diff) | |
cmd: nand: nand dump with ecc option
option to show nand dump data ecc corrected as opposed to just raw
Signed-off-by: david regan <dregan@broadcom.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Diffstat (limited to 'cmd/nand.c')
| -rw-r--r-- | cmd/nand.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/cmd/nand.c b/cmd/nand.c index 832e990108c..b5678b0a008 100644 --- a/cmd/nand.c +++ b/cmd/nand.c @@ -160,7 +160,7 @@ free_memory: } static int nand_dump(struct mtd_info *mtd, ulong off, int only_oob, - int repeat) + int ecc, int repeat) { int i; u_char *datbuf, *oobbuf, *p; @@ -192,12 +192,16 @@ static int nand_dump(struct mtd_info *mtd, ulong off, int only_oob, ops.oobbuf = oobbuf; ops.len = mtd->writesize; ops.ooblen = mtd->oobsize; - ops.mode = MTD_OPS_RAW; + if (ecc) + ops.mode = MTD_OPS_PLACE_OOB; + else + ops.mode = MTD_OPS_RAW; i = mtd_read_oob(mtd, addr, &ops); if (i < 0) { - printf("Error (%d) reading page %08lx\n", i, off); + printf("Error reading page at offset %08lx, %d %s\n", + off, i, i == -EUCLEAN ? "correctable" : + "uncorrectable, dumping raw data"); ret = 1; - goto free_all; } printf("\nPage at offset %08lx dump:\n", off); @@ -212,7 +216,6 @@ static int nand_dump(struct mtd_info *mtd, ulong off, int only_oob, p = oobbuf; print_buffer(0, p, 1, i, 8); -free_all: free(oobbuf); free_dat: free(datbuf); @@ -697,11 +700,19 @@ static int do_nand(struct cmd_tbl *cmdtp, int flag, int argc, } if (strncmp(cmd, "dump", 4) == 0) { + int only_oob, ecc; + if (argc < 3) goto usage; + only_oob = !strcmp(&cmd[4], ".oob") || !strcmp(&cmd[4], ".ecc.oob") || + !strcmp(&cmd[4], ".oob.ecc"); + + ecc = !strcmp(&cmd[4], ".ecc") || !strcmp(&cmd[4], ".ecc.oob") || + !strcmp(&cmd[4], ".oob.ecc"); + off = (int)hextoul(argv[2], NULL); - ret = nand_dump(mtd, off, !strcmp(&cmd[4], ".oob"), repeat); + ret = nand_dump(mtd, off, only_oob, ecc, repeat); return ret == 0 ? 1 : 0; } @@ -1031,7 +1042,7 @@ U_BOOT_LONGHELP(nand, "nand erase.part [clean] partition - erase entire mtd partition'\n" "nand erase.chip [clean] - erase entire chip'\n" "nand bad - show bad blocks\n" - "nand dump[.oob] off - dump page\n" + "nand dump[.oob][.ecc] off - dump raw (default) or ecc corrected page at offset\n" #ifdef CONFIG_CMD_NAND_WATCH "nand watch <off> <size> - check an area for bitflips\n" "nand watch.part <part> - check a partition for bitflips\n" |