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nand: Correct NAND erase percentage output

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For NAND erase sizes smaller than one NAND erase block, erase
percentage output becomes grater than 100% e.g.

-- cut --
  > nand info
Device 0: NAND 64MiB 1,8V 8-bit, sector size 16 KiB
  > nand erase 0x100000 0x2000
NAND erase: device 0 offset 0x100000, size 0x2000
Erasing at 0x100000 -- 200% complete.
OK
  >
-- cut --

Correct this and give user a warning that more is erased than specified:

-- cut --
  > nand erase 0x100000 0x2000
NAND erase: device 0 offset 0x100000, size 0x2000
Warning: Erase size 0x00002000 smaller than one erase block 0x00004000
           Erasing 0x00004000 instead
Erasing at 0x100000 -- 100% complete.
OK
  >
-- cut --

Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
This commit is contained in:
Dirk Behme 2008-01-16 14:26:59 +01:00 committed by Scott Wood
parent 5922db6c09
commit 9723bbb46a
1 changed files with 7 additions and 0 deletions
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7
drivers/mtd/nand/nand_util.c
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@ -153,6 +153,13 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
priv_nand->bbt = NULL;
}
if (erase_length < meminfo->erasesize) {
printf("Warning: Erase size 0x%08x smaller than one " \
"erase block 0x%08x\n",erase_length, meminfo->erasesize);
printf(" Erasing 0x%08x instead\n", meminfo->erasesize);
erase_length = meminfo->erasesize;
}
for (;
erase.addr < opts->offset + erase_length;
erase.addr += meminfo->erasesize) {