diff options
Diffstat (limited to 'drivers/mtd/nand/nand_util.c')
| -rw-r--r-- | drivers/mtd/nand/nand_util.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c index 0f67790488..6a5dd372cc 100644 --- a/drivers/mtd/nand/nand_util.c +++ b/drivers/mtd/nand/nand_util.c @@ -75,7 +75,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) { struct jffs2_unknown_node cleanmarker; erase_info_t erase; - ulong erase_length; + unsigned long erase_length, erased_length; /* in blocks */ int bbtest = 1; int result; int percent_complete = -1; @@ -84,13 +84,19 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) struct mtd_oob_ops oob_opts; struct nand_chip *chip = meminfo->priv; + if ((opts->offset & (meminfo->writesize - 1)) != 0) { + printf("Attempt to erase non page aligned data\n"); + return -1; + } + memset(&erase, 0, sizeof(erase)); memset(&oob_opts, 0, sizeof(oob_opts)); erase.mtd = meminfo; erase.len = meminfo->erasesize; erase.addr = opts->offset; - erase_length = opts->length; + erase_length = lldiv(opts->length + meminfo->erasesize - 1, + meminfo->erasesize); cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK); cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER); @@ -114,15 +120,8 @@ 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%08lx 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; + for (erased_length = 0; + erased_length < erase_length; erase.addr += meminfo->erasesize) { WATCHDOG_RESET (); @@ -135,6 +134,10 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) "0x%08llx " " \n", erase.addr); + + if (!opts->spread) + erased_length++; + continue; } else if (ret < 0) { @@ -145,6 +148,8 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) } } + erased_length++; + result = meminfo->erase(meminfo, &erase); if (result != 0) { printf("\n%s: MTD Erase failure: %d\n", @@ -171,9 +176,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) } if (!opts->quiet) { - unsigned long long n =(unsigned long long) - (erase.addr + meminfo->erasesize - opts->offset) - * 100; + unsigned long long n = erased_length * 100ULL; int percent; do_div(n, erase_length); |