Messages in this thread | | | Date | Thu, 23 Jul 2015 18:45:19 -0700 | From | Brian Norris <> | Subject | Re: [PATCH v3] mtd: nand support for Toshiba BENAND (Built-in ECC NAND) |
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On Fri, Jul 24, 2015 at 09:52:18AM +0900, KOBAYASHI Yoshitake wrote: > This patch enables support for Toshiba BENAND. BENAND is a SLC NAND > solution that automatically generates ECC inside NAND chip. > > I considered to use the patch of on-die ECC, but I believe reading twice > the same page approach will affect read performance. Additionally, BENAND > does not support Disable ECC. So, I cannot use same approach. > > BENAND Read Status CMD(70h) is able to report Rewrite Recommend. BENAND > also has extended ECC Status CMD(7Ah). This command is able to report the > number of bit error/sector data. When MTD_NAND_BENAND_ENABLE option enabled, > this driver use the extended ECC status CMD(7Ah) to report real number of > bitflips. In case of difficult to use CMD(7Ah), this driver use > "mtd->bitflip_threshold" to assume the number of bitflips. > > Signed-off-by: KOBAYASHI Yoshitake <yoshitake.kobayashi@toshiba.co.jp> > ---
Where's the changelog? I see that this is version 3...
Brian
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