"Das U-Boot" Source Tree
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>
authored by
david regan
and committed by
Michael Trimarchi
bb5d3a7a
b5ce63e1
+18
-7
+18
-7
cmd/nand.c
+18
-7
cmd/nand.c
···
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}
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static int nand_dump(struct mtd_info *mtd, ulong off, int only_oob,
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int repeat)
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int ecc, int repeat)
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{
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int i;
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u_char *datbuf, *oobbuf, *p;
···
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ops.oobbuf = oobbuf;
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ops.len = mtd->writesize;
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ops.ooblen = mtd->oobsize;
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ops.mode = MTD_OPS_RAW;
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if (ecc)
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ops.mode = MTD_OPS_PLACE_OOB;
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else
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ops.mode = MTD_OPS_RAW;
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i = mtd_read_oob(mtd, addr, &ops);
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if (i < 0) {
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printf("Error (%d) reading page %08lx\n", i, off);
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printf("Error reading page at offset %08lx, %d %s\n",
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off, i, i == -EUCLEAN ? "correctable" :
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"uncorrectable, dumping raw data");
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ret = 1;
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goto free_all;
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}
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printf("\nPage at offset %08lx dump:\n", off);
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···
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p = oobbuf;
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print_buffer(0, p, 1, i, 8);
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free_all:
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free(oobbuf);
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free_dat:
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free(datbuf);
···
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}
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if (strncmp(cmd, "dump", 4) == 0) {
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int only_oob, ecc;
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if (argc < 3)
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goto usage;
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only_oob = !strcmp(&cmd[4], ".oob") || !strcmp(&cmd[4], ".ecc.oob") ||
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!strcmp(&cmd[4], ".oob.ecc");
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ecc = !strcmp(&cmd[4], ".ecc") || !strcmp(&cmd[4], ".ecc.oob") ||
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!strcmp(&cmd[4], ".oob.ecc");
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off = (int)hextoul(argv[2], NULL);
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ret = nand_dump(mtd, off, !strcmp(&cmd[4], ".oob"), repeat);
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ret = nand_dump(mtd, off, only_oob, ecc, repeat);
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return ret == 0 ? 1 : 0;
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}
···
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"nand erase.part [clean] partition - erase entire mtd partition'\n"
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"nand erase.chip [clean] - erase entire chip'\n"
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"nand bad - show bad blocks\n"
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"nand dump[.oob] off - dump page\n"
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"nand dump[.oob][.ecc] off - dump raw (default) or ecc corrected page at offset\n"
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#ifdef CONFIG_CMD_NAND_WATCH
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"nand watch <off> <size> - check an area for bitflips\n"
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"nand watch.part <part> - check a partition for bitflips\n"