Messages in this thread | | | Date | Fri, 24 Jul 2015 14:01:06 -0500 | From | Andy Gross <> | Subject | Re: [PATCH v2 1/5] mtd: nand: Create a BBT flag to access bad block markers in raw mode |
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On Tue, Jul 21, 2015 at 04:04:42PM +0530, Archit Taneja wrote: > Some controllers can access the factory bad block marker from OOB only > when they read it in raw mode. When ECC is enabled, these controllers > discard reading/writing bad block markers, preventing access to them > altogether. > > The bbt driver assumes MTD_OPS_PLACE_OOB when scanning for bad blocks. > This results in the nand driver's ecc->read_oob() op to be called, which > works with ECC enabled. > > Create a new BBT option flag that tells nand_bbt to force the mode to > MTD_OPS_RAW. This would result in the correct op being called for the > underlying nand controller driver. > > Signed-off-by: Archit Taneja <architt@codeaurora.org> > ---
Reviewed-by: Andy Gross <agross@codeaurora.org>
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